NRAO eNews
Volume 3, Issue 10 October 6, 2010
Upcoming Events
Astro2010 Decadal Survey Town Hall
November 4, 2010 | Socorro, NM
The 26th Annual New Mexico Symposium
November 5, 2010 | Socorro, NM
NRAO Town Hall - 217th AAS Meeting
January 11, 2011 | 6:30 PM | Seattle, WA
Early Science with the EVLA - Special Session - 217th AAS Meeting
January 12, 2011 | 10:00 AM | Seattle, WA
Observing with ALMA - Special Session- 217th AAS Meeting
January 12, 2011 | 2:00 PM | Seattle, WA
ALMA: Extending the Limits of Astrophysical Spectroscopy
January 15–17, 2011 | Victoria, British Columbia
An Astro2010 Decadal Survey Town Hall at the NRAO
Robert Dickman
To foster community understanding of and support for the recommendations of the Astro 2010 Decadal Survey, "New Worlds, New Horizons," the NRAO and the American Astronomical Society (AAS) will host an Astro2010 Decadal Survey Town Hall on Thursday, 4 November 2010 from 1-4 p.m. MDT at the NRAO Domenici Science Operations Center on the campus of New Mexico Tech in Socorro (Directions). Astro2010 committee member Paul Vanden Bout will give a Decadal Survey presentation and answer audience questions. There will be ample time for discussion with Paul and among the attendees.
This NRAO event is part of a series of Astro2010 Town Halls being held across the US from September – November 2010. I encourage all AAS members within reasonable driving distance of the NRAO facilities in Socorro to join us for this important event. A culminating Astro2010 Town Hall will take place at the January 2011 AAS meeting in Seattle, WA.
Astro2010 Decadal Survey
Astro2010 Decadal Survey Town Halls
2011 Jansky Fellowship Announcement
The National Radio Astronomy Observatory (NRAO) announces the 2011 Jansky Fellowship Program which provides outstanding postdoctoral opportunities for research in astronomy. Jansky Fellows formulate and carry out investigations either independently or in collaboration with others within the wide framework of interests of the Observatory. Prior radio experience is not required and multi-wavelength projects leading to a synergy with NRAO instruments are encouraged. The NRAO also encourages applications from candidates with interest in radio astronomy instrumentation, computation, and theory.
Appointments may be made for positions at any of these NRAO sites: Socorro, NM; Green Bank, WV; and Charlottesville, VA. As ALMA commissioning activities get underway, we anticipate that there will also be appointments available in Chile. Jansky Fellows are encouraged to spend time at universities working with collaborators during the course of their Fellowship.
In addition to appointments at NRAO sites, non-resident Jansky Fellowships may be offered for appointments that are hosted at a U.S. university. Frequent and/or long term visits to NRAO sites are encouraged. Split Fellowships with time spent at NRAO and a U.S. university are permitted.
The starting salary will be $62,000 per year with an appointment duration of two years, and possible renewal for a third. A research budget of up to $10,000 per year is provided for travel and computing requirements. Fellows are eligible for page charge support, vacation accrual, health insurance coverage, and a moving allowance. In addition, up to $3,000 per year is provided to non-NRAO institutions hosting Jansky Fellows to defray local institutional costs.
Note that the match between the host university and the candidate's research program is an important factor in the selection process. Also, appointments of more than one Jansky Fellow at a single external institution at a given time are discouraged. A list of blocked institutions for 2011 can be found below.
The purpose of the program is to provide an opportunity for young scientists to establish themselves as independent researchers so that they may more effectively compete for permanent positions. The placement of Fellows at institutions other than the NRAO will help foster closer scientific ties between the NRAO and the U.S. astronomical community. The NRAO Postdoctoral Symposium is held annually to ensure close contact among all Observatory Fellows and the NRAO.
Candidates must receive their PhD prior to beginning a Jansky Fellowship appointment.
The Jansky Fellowship application procedure is available on-line. The deadline for both applications and letters of recommendation is Monday, November 1, 2010. Award offers will be made by February 15, 2011, with the Fellowships normally expected to begin September 2011. The NRAO is an equal opportunity employer (M/F/H/V).
Registration Open for ALMA Spectroscopy Workshop
Anthony Remijan and Gerald Schieven (NRC-Canada)
Registration is open for the “ALMA: Extending the Limits of Astrophysical Spectroscopy” workshop that will be held 15 – 17 January 2011 in Victoria, British Columbia. The National Research Council of Canada (NRC), the North American ALMA Science Center (NAASC), and the Center for Chemistry of the Universe (CCU) are jointly hosting this workshop that will highlight the Atacama Large Millimeter/submillimeter Array (ALMA) capabilities and scientific opportunities that will soon be available to the community.
Abstract submission is now open and will remain open until 30 November. Meeting Registration will be limited to ~100-120 participants and will close once the maximum number has been reached. As the call for Early Science proposals with ALMA is approaching, we also invite you to attend a one-day ALMA tutorial that will include:
- ALMA Early Science capabilities
- The services provided by the North American ALMA Science Center
- How to use the ALMA Observing Tool and submit a proposal
- How to simulate an early science observation using the SIMDATA package in CASA (the data reduction package for ALMA)
The tutorial will take place directly AFTER the Spectroscopy 2011 Conference, on Tuesday, 18 January 2011 in Victoria, Canada at a cost of $100 per participant to cover the tutorial room, equipment, and refreshments. As the goal is hands-on experience with the OT and SIMDATA which uses CASA, participants will need to bring their own laptop and install (and verify they work) these packages before they arrive. The NAASC department at the NRAO helpdesk is available to address questions about installation etc, and more information about installing these packages will be forthcoming.
As venue space is limited for this event, we can only offer ~60 spaces so please register ASAP to reserve your place in the tutorial. For those interested in attending the tutorial but who are not attending the Spectroscopy 2011 meeting, registration for the tutorial ONLY is available online.. The tutorial registration will remain open until 30 November 2010, or until we reach the maximum number of participants. We sincerely hope you will consider attending this workshop and tutorial and join the community in realizing the full potential of ALMA!
Additional information about this ALMA workshop.
Approved NRAO Science Program: Trimester 2010-C
The June 2010 Call for Proposals covered the third trimester of 2010. A total of 222 proposals were received. The GBT and the VLA/VLBA Proposal Selection Committees (PSC) met in the second week of August to review the referee rankings and technical reports for all proposals, with the goal of providing a recommended science program to the NRAO Director’s Office.
A list of the approved EVLA, VLBA/High Sensitivity Array (HSA), and GBT observing programs for Trimester 2010-C is given below. For each approved program is listed: (a) the PI’s last name; (b) the title of the approved proposal, and the total hours allocated for the program, and (d) the type of proposal (Regular or Large). In cases of Large proposals or monitoring projects the time allocated may be over more than one trimester.
Expanded Very Large Array (EVLA)
To maximize early EVLA science while simultaneously commissioning the hardware and introducing new capabilities, three separate programs were created. They are, in brief, Open Shared Risk Observing (OSRO) which provides first-light EVLA capabilities to the general user community, Resident Shared Risk Observing (RSRO) which provides access to enhanced EVLA capabilities to those who are able to spend a period of time in Socorro to help with commissioning, and a modest (<500 hrs/year) EVLA Commissioning Staff Observing (ECSO) program giving access to commissioning staff to push new science capabilities.
PI | RSRO Title | Hours | Type |
Berger | Progenitors to Probes: New Insights on Gamma-Ray Bursts with EVLA/RSRO | 63 | Regular |
Brogan | Resolving the Evolutionary Diversity and Accretion in Massive Protoclusters | 14 | Regular |
Chomiuk | Decisive Constraints on Intermediate-Mass Black Holes in Globular Clusters | 20 | Regular |
Hallinan | Broadband Spectra of Radio Emission from M Dwarf Stars and Brown Dwarfs | 16 | Regular |
Irwin | CHANG-ES: Continuum HAlos in Nearby Galaxies -- an EVLA Survey | 405 | Large |
Melis | Mapping the Vertical and Radial Structure of Dust in Protoplanetary Disks - RSRO | 26 | Regular |
van Gorkom | A Pilot for an EVLA HI Deep Field | 60 | Regular |
PI | ECSO Title | Hours | Type |
Butler | Further Observations of TNOs | 29 | Regular |
Chandler | Searching for planet-forming dead-zones in protoplanetary disks: a pilot study | 21 | Regular |
Marvil | A sensitive,multi-frequency continuum study of M82 and NGC 2146 | 30 | Regular |
Lovell | Observations of Ceres and Vesta | 12 | Regular |
Ott | Shocks,Feedback and Chemistry: Cm-Wave Spectroscopy of Arp 220 | 24 | Regular |
PI | OSRO Title | Hours | Type |
Baez Rubio | Searching extremely broad H recombination lines in massive star forming regions | 8 | Regular |
Baker | Mapping SiO(1-0) in the Nucleus of NGC1068 | 24 | Regular |
Bartel | SN 2006gy: Radio emission through an extremely dense circumstellar medium? | 2 | Regular |
Battersby | Precision Densitometry in Massive-Star-Forming Clumps | 20.5 | Regular |
Begum | SPONGE: 21-cm SPectral line Observations of Neutral Gas with the EVLA | 411 | Large |
Blomme | The colliding winds of the massive binary Cyg OB2 No. 9 | 5.5 | Regular |
Borthakur | High Resolution EVLA Absorption Study to Probe Cold Gas in Foreground Galaxies | 24 | Regular |
Braatz | The Megamaser Cosmology Project. IV | 10 | Large |
Bruni | Polarisation properties of Radio-Loud Broad Absorption Line Quasars | 20 | Regular |
Brunthaler | Toward an accurate distance to the ultracompact binary HM Cnc | 12 | Regular |
Carilli | Massive galaxy formation within 870 Myr of the Big Bang | 152 | Regular |
Chandra | EVLA observations of unique Type IIN supernova SN2008iy | 8 | Regular |
Chandra | Observing SN 1993J with the EVLA | 4 | Regular |
Chandra | Exploring the mysterious Type IIn supernovae within 150 Mpc distance | 18 | Regular |
Choi | Absolute positions of H2O and SiO masers in the Red Supergiant Clusters | 15 | Regular |
DiPompeo | Reorienting Our Perspective of Broad Absorption Line Quasars | 16 | Regular |
Edge | An EVLA survey of cool core clusters - what lies at their very core? | 22 | Regular |
Fernandez | HI Outflow of a Prototypical Wet Merger Remnant,NGC 34 | 7 | Regular |
Galvan-Madrid | Dynamics of Ionized Jets: Radio Recombination Line Stacking | 8 | Regular |
Gomez | Polarization observations of class I methanol masers | 4 | Regular |
Harper | Thermodynamics of Dust-Free Red Giant Winds: Vital input for Mass Loss Studies | 15.5 | Regular |
Impellizzeri | Search for water megamaser emission in a unique,new sample of lensed SMGs | 35 | Regular |
Koziel Wierz | Multifrequency radio analysis of a restarting radio galaxy - the inner structure | 4.5 | Regular |
Lelli | Gas Dynamics and Star Formation in Blue Compact Dwarfs | 40 | Regular |
Mann | The Mass-Loss Rates of Protoplanetary Disks in Two Rich Clusters | 12 | Regular |
Mayen Gijon | Possible spatially-resolved infall motions in the G31 Hot Molecular Core | 8 | Regular |
Melis | Mapping the Vertical and Radial Structure of Dust in Protoplanetary Disks - OSRO | 5 | Regular |
O'Dea | Black Hole Spins of Radio Loud Quasars | 22 | Regular |
Osorio | Spatially resolved planet formation in the disk of HD 169142 | 8 | Regular |
Riechers | The Clustered Formation of Massive Galaxies around a z=5.3 Submillimeter Galaxy | 73 | Regular |
Robishaw | Measuring the Evolution of Galactic Magnetic Fields over Cosmic Time | 24 | Regular |
Sargent | Dissecting the Magic Wand of HE 0450-2958 | 6 | Regular |
Sarma | Zeeman observations of 36 GHz & 44 GHz Class I Methanol Masers toward M8E | 8 | Regular |
Sharon | High-resolution Mapping of CO(1--0) in the Cloverleaf | 29 | Regular |
Sharon | Resolved CO Mapping of a Lensed Lyman Break Galaxy | 42 | Regular |
Smail | A Joint EVLA/eMERLIN Survey of AGN and Star Formation in Distant Rich Clusters | 20 | Regular |
Soderberg | The Diversity of SNe Ibc and the Nature of the GRB-SN Connection | 10 | Regular |
Soderberg | Continued Monitoring of the Bright GRB030329 | 8 | Regular |
Stanway | A Possible z=8 CO Line Emitter in the Field of GRB 090423 | 16 | Regular |
Suzuki | Dusty Starburst Galaxies in the Protocluster Candidate at z=2.48 around 4C23.56 | 24 | Regular |
Swinbank | High-resolution imaging of the CO(1-0) emission in the submm galaxy SMMJ2135 | 25 | Regular |
Tarchi | A water maser in IGRJ16385-2057: new clues on Narrow Line Seyfert 1 galaxies | 2.5 | Regular |
Taylor | Closing in on the Unidentified Fermi-LAT Gamma-ray Sources | 10 | Regular |
Young | Radio Continuum and Star Formation in Early-type Galaxies | 10 | Regular |
Yun | Nature of Micro-Jy Radio Sources in the Two GOODS Fields (updated) | 66 | Regular |
Yusef-Zadeh | SiO,CH3OH,H2O and 44GHz Observations of the Galactic Center Molecular Ring | 2.5 | Regular |
Very Long Baseline Array (VLBA) and High Sensitivity Array (HSA)
The 22 newly approved projects below for the VLBA and HSA make up only a part of the total science time available. Large projects continue to dominate the scheduled observing.
PI | Proposal Title | Hours | Type |
Batejat | Characterisation of newly detected rapidly varying resolved sources in Arp220 | 27 | Regular |
Bietenholz | Proper motion of the Young Pulsar J0205+6449 in 3C 58 | 12 | Regular |
Braatz | The Megamaser Cosmology Project. IV | 96 | Large |
Brunthaler | The evolution of SN 2008iz in M82 | 72 | Regular |
Cavagnolo | Imaging the Misdirected QSO OF IRAS 09104+4109 | 12 | Regular |
Deane | A gravitationally lensed starburst/AGN composite at z=2.3 | 16 | Regular |
Deller | PSRPI: Mapping the Galactic distribution of pulsars with the VLBA | 762.5 | Large |
Edwards | Four new TeV emitting High Frequency-Peaking BL Lacs | 16 | Regular |
Furuya | Probing the water maser jet in G19.61-0.23 | 32 | Regular |
Hada | Multi-calibrator astrometry of the core of the low-luminosity AGN M 104 | 20 | Regular |
Hough | Acceleration on 10-100 pc Scales in Lobe-dominated Quasars - Part III | 8 | Regular |
Loinard | The distance to Monoceros: one of the nearest high-mass star-forming regions | 57 | Regular |
Marecki | Location of the core in the possibly restarted source 0932+075 | 4 | Regular |
McClintock | Measuring the Parallaxes of the X-ray Binaries Cyg X-1,Cyg X-2 and Cyg X-3 | 40 | Regular |
Miller-Jones | Constraining black hole formation with triggered VLBA astrometry | 48 | Regular |
Miller-Jones | The connection between gamma-ray emission and radio jets in Cygnus X-3 | 48 | Regular |
Orienti | Steep spectrum sources and the duty cycle of the radio emission | 20 | Regular |
Ramstedt | The SiO masers close to the binary AGB star W Aql | 9 | Regular |
Sarma | Exploratory VLBA Observation of 44 GHz methanol masers in OMC-2 | 5 | Regular |
Sivakoff | The Ultimate VLBA Calibrator Search for Galactic Black Hole X-ray Binaries | 22 | Regular |
Tingay | A commensal method for the detection of fast transients using the VLBA | 24 | Regular |
Walker | Flaring in the 43 GHz Radio Core of M87 | 26 | Regular |
Green Bank Telescope (GBT)
PI | Proposal Title | Type |
Grigorrii Larionov | A search for negative molecular ions in diffuse interstellar clouds | Regular |
Jeff Wagg | HDF850.1 as part of a large-scale structure of submm galaxies at z~4 | Regular |
Jeff Mangum | Kinetic Temperature in Starburst Galaxies | Regular |
Larry Morgan | Environmental Effects Upon Star Formation | Regular |
Dharam Lal | GBT observations of FR II radio galaxies at 90 GHz | Regular |
Eduardo Rubio-Herrera | Surveying our Galaxy's Satellite Companions for Pulsars and Radio Transients | Regular |
Bojan Nikolic | Star-forming galaxies at 90 GHz | Regular |
Paola Castangia | Water maser and hard X-ray emission in AGN: the complete INTEGRAL sample | Regular |
Andrea Tarchi | Search for a Maser Flare in the FRII Galaxy 3C403 | Regular |
Timothy Hankins | Crab Nebula Pulsar Giant Pulses at Centimeter Wavelengths: II | Regular |
James Urquhart | The RMS survey: probing the environments of young massive stars | Regular |
Simon Dicker | Imaging Massive Cluster Mergers Through the Sunyaev-Zel'dovich Effect | Regular |
Jim Braatz | The Megamaser Cosmology Project. IV | Large |
Anna Scaife | Characterizing the Anomalous Emission from Spinning Dust in Galactic HII regions | Regular |
James Urquhart | The RMS survey: NH3 mapping of triggered massive star forming regions | Regular |
Lisa Walker | HI MASSES OF COMPACT GROUPS OF GALAXIES | Regular |
Toby Moore | Protostellar core sizes in W3 and Perseus | Regular |
Eric Murphy | A Ka-Band Survey of Star Formation & Anomalous Dust Emission in Nearby Galaxies | Regular |
Eric Murphy | The Origin of Anomalous Dust Emission in Extragalactic HII Regions | Regular |
Dave Frayer | CO(1-0) Observations of the Brightest Herschel-Selected Sub-mm Galaxies | Regular |
Nami Sakai | Search for Long Carbon-Chains in the Newly Found Starless Core, Lupus-1A | Regular |
David Jewitt | Mass Loss from Comet 103P/Hartley 2 | Regular |
Nami Sakai | Probing Carbon-Chain Growth with the 13C Isotopomers | Regular |
Brian Cherinka | Connecting local galaxies with Damped Lyman Alpha systems via 21 cm absorption. | Regular |
Alyson Ford | The Molecular Link Between Supershells and Halo Clouds | Regular |
Toney Minter | Investigating the small-scale structure of HI | Regular |
Marta Burgay | Searching for radio pulsations from Calvera | Regular |
M. Hughes | The Debris Ring around Epsilon Eridani | Regular |
Jeremy Darling | A Water Maser Survey of M31: The First Step Toward Proper Motion | Regular |
Scott Schnee | Mapping the Dust Emission from OMC-2/3 | Regular |
Paul Ries | Observations of Iapetus's Thermal Light Curve | Regular |
Dominic Ludovici | Searching for HI in the loose group LGG 140 | Regular |
Rachel Friesen | Temperature, fragmentation and kinematics in the Serpens South Cluster | Regular |
Jean-Luc Margot | Venus spin dynamics | Regular |
Martin Sommer | Follow-up observation of an SZE non-detection of a galaxy cluster at z=0.97 | Regular |
Scott Ransom | Long Term Timing of 55 Recycled Pulsars in Bulge Globular Clusters | Regular |
Carol Lonsdale | 30 and 90Hz Observations of WISE extreme HyLIRG at z=2.45 | Regular |
Ian Hoffman | Renewed Interest in the Rare Ammonia Maser in NGC 7538 | Regular |
Jack Hewitt | Searching for OH(1720 MHz) Masers from TeV-bright SNR G106.3+2.7 | Regular |
Mallory Roberts | Searching for Highly Scattered Pulsars in Very Low Latitude Fermi Sources | Regular |
Tony Remijan | Investigating the Formation of Large Molecules in the Orion Compact Ridge | Regular |
Shadi Chitsazzadeh | Ammonia Observations of Starless Cores with the KFPA | Regular |
Kaustuv Basu | High-resolution Sunyaev-Zel'dovich (SZ) imaging of a cluster cool core | Regular |
Megan DeCesar | A Search for Millisecond Pulsars in Gamma-ray-Detected Globular Clusters | Regular |
Stefanie Milam | Molecular Survey towards Comet 103P/Hartley 2 | Regular |
Paul Ries | A Study of TNOs and Captured TNOs at 3.3mm | Regular |
Martin Cordiner | Continuing the targeted search for hydrocarbon anions | Regular |
Susanna Finn | Mapping Ammonia in Five Filamentary Infrared Dark Clouds with the KFPA | Regular |
Elisabeth Mills | Probing extremes of density and temperature in Galactic center molecular clouds | Regular |
Joint NRAO/Chandra Program: Accepted Proposals
Dale Frail
In 2003 NRAO entered into a joint proposal process with the Chandra X-ray Center. Up to 3% of the time on all NRAO telescopes was made available per year (with no more than 5% in a single trimester). Time is awarded on a competitive basis by means of a single proposal asking for both X-ray and radio observations, and submitted to the Chandra X-ray Center. Successful US-based PI's are eligible for NASA funding. Further details of this program are available in the Chandra X-ray Center Proposal Calls.
The results of the Chandra proposal Cycle 12 have been made public. We list below the 11 successful joint NRAO/Chandra proposals for this cycle, giving the name of the principle investigator, the proposal title, and the total number of hours allocated on NRAO telescopes for each proposal. In all cases the proposals requested time on the EVLA.
Principle Investigator | Proposal Title | Hours Allocated |
J. Miller | High Resolution Spectroscopy of a Black Hole Transient | 4.0 hrs |
S. Corbel | X-Ray Jets in Microquasars | 3.0 hrs |
P. Jonker | Following a black hole candidate X-ray transient to quiescence | 16.0 hrs |
I. Grenier | ToO observation of a bright Galactic transient discovered by Fermi and Swift | 1.0 hr |
J. Neilsen | A Long Multiwavelength Study of GRS 1915+105 | 11.0 hrs |
S. Randall | Understanding AGN Feedback with Deep Observations of NGC 5813 | 12.5 hrs |
C. Heinke | An X-ray/Radio Test for an Intermediate-Mass Black Hole in M31's G1 Cluster | 9.75 hrs |
A. Basu-Zych | Chandra Observations of Local Lyman Break Galaxy Analogs | 35.0 hrs |
M. Gitti | Investigating AGN feedback in cool cores detected in Halpha | 18.0 hrs |
J. Sanders | A deep look at PKS 0745-191 and its cluster environment | 5.0 hrs |
M. Sun | AGN heating and cooling in the most luminous group cool core | 12.0 hrs |
ALMA Project Update
Al Wootten
A New Home for ALMA in Santiago
At the end of August, ALMA activities in Santiago moved a short distance, from their temporary quarters on the upper floors of a building in Santiago’s Los Condes ‘Sanhattan’ area to their permanent home in the Santiago Central Office on the grounds of the ESO compound in Vitacura. The building will get a workout during the upcoming austral spring as multiple reviews are held to determine ALMA readiness for the Call for Proposals for Early Science.
The first of these will be the External Review of the status of Commissioning and Science Verification that will be held at the ALMA site 7-8 October and led by Project Scientist Richard Hills. The Science Operations External Review, including the ALMA Regional Centers (ARCs), will be held in Santiago 11-12 October for a separate external committee, being arranged by Head of Science Operations Lars-Ake Nyman. The following two days the ALMA Science Advisory Committee (ASAC), a committee of the ALMA Board, will meet in Santiago to prepare a report to the Board. The third Annual ALMA External Review will be held 25-28 October. An Array Status Review on 8-9 November will focus on maintenance capabilities for hardware and software. On 10 November, an Observatory Readiness Review will be held to pull together the conclusions of the external reviews, and the recommendations of the ASAC and AAER committees, in preparation for the ALMA Board meeting 16-18 November. This ALMA Board meeting will decide the call for proposal date, the Early Science observations start date, and the Early Science capabilities to be offered. An announcement of these Board decisions is expected by the end of November.
ALMA Test Data
A small amount of ALMA test data was released in September to illustrate some of the progress being made during construction. As test data, only some aspects of the complete observation, calibration and imaging cycle have been applied to the data.
Project Scientist Richard Hills noted the challenges, among which is conducting observations in the normally opaque atmospheric bands which are available though far from transparent at the ALMA site. All aspects of the ALMA system, from antenna performance (surface, pointing with small beams, tracking accuracy) to system and atmospheric stability are tested in the high frequency bands, such as Band 9 (602-720 GHz; 0.4-0.5mm wavelength). Bright calibration sources are also scarce at these wavelengths.
The test data illustrates that ALMA's performance at the cutting edge continues to make progress--data at the 690 GHz CO line in the well-known southern galaxy NGC253 was calibrated using Jupiter's bright moons Io and Callisto. The test data shows impressive atmospheric and instrumental performance during the observation.
Halfway to the Early Science Antenna Array
ALMA continued to grow in size and capability throughout August and September, with the Transport of Vertex Antenna 8 to the high-elevation Array Operations Site (AOS) on 27 September and its incorporation into the commissioning array.
The first two antennas to reach the AOS, DV01 and PM03, are at the lower elevation Operations Support Facility (OSF) undergoing updates. DV01 returned to the Assembly, Integration and Verification area from the contractor’s site and awaits incorporation into the OSF two-station interferometer with DV09 for further tests and for software testing leading to the installation of a major software release at year-end. Antennas PM01 and PM04 have been moved to the OSF AIV area; ALMA acceptance is expected soon. DV10 is undergoing its final tests at the Vertex Site Erection Facility. Four new 7m antennas arrived from Japan. The first of the European AEM antennas passed its Technical Readiness Review and has begun pointing tests with the Optical Pointing Telescope.
As the Array moves closer to the key decision point on the timing of the issuance of the Call for Early Science, preparatory work at the ARCs has increased. An exercise testing readiness for Early Science was carried out in which participants submitted mock proposals, including helpdesk functions, participated in a load test in which over 700 mock proposals were submitted to the archive in 15 minutes, the technical and scientific assessment process for the mock proposals. Participants provided feedback at all steps in the exercise. A number of ALMA user documents were written, vetted, and submitted to Science Operations Readiness Review panel including an updated ALMA Primer, an ALMA Quickstart guide, and Early Science simulations.
The yearly ANASAC face-to-face meeting was held at the North American ALMA Science Center (NAASC) in Charlottesville, Virginia on 13-14 September. Participants considered a number of charges relating to NAASC and ALMA readiness for Early Science.
The Astro2010 Committee for a Decadal Survey of Astronomy and Astrophysics Radio Millimeter and Submillimeter panel report released on 13 August stated: ALMA will be the world’s premiere facility for high-resolution imaging at millimeter/submillimeter wavelengths. It is essential that a program of upgrades be supported to maintain its vitality. While the upgrades will be determined by agreement of the international consortium, there are some obvious examples. Some receiver bands are not included in the first light complement; adding these is important for obtaining complete wavelength coverage within atmospheric windows, which is especially needed for line studies of galaxies over the full range of redshifts. Adding capability to join the mm-wave VLBI network would greatly enhance the sensitivity for ultra-high resolution millimeter/submillimeter studies (Table 9.1). The consortium plans a program costing $90 million over a decade, of which $30 million would come from the North American partners. The panel fully supports this plan.” Support for ALMA development was also highlighted in the main report (Table B-1).
The sixth issue of the Joint ALMA Observatory newsletter (JAO) is available. This issue reports the successful demonstration of phase correction at the ALMA site via the Water Vapor Radiometer, whose role is to measure atmospheric water vapor in the line of sight of each antenna and apply corrections to the astronomical data. Learn more about this advancement and others in this JAO newsletter issue.
Publications Available from the NRAO Library
Marsha Bishop
The NRAO Library continues to scan and make available full-text NRAO publications. Our latest additions to this endeavor are:
- Low frequency variability of extragalactic radio sources: proceedings of a workshop held at the National Radio Astronomy Observatory, Green Bank, West Virginia, April 21-22, 1982 / edited by W.D. Cotton and S.R. Spangler.
- The search for extraterrestrial intelligence: proceedings of an NRAO workshop held at the National Radio Astronomy Observatory, Green Bank, West Virginia, May 20, 21, 22, 1985 / edited by K.I. Kellermann and G.A. Seielstad.
- Serendipitous discoveries in radio astronomy: proceedings of a workshop held at the National Radio Astronomy Observatory, Green Bank, West Virginia on May 4, 5, 6 1983 / Edited by K. Kellermann and B. Sheets.
The NRAO Library will continue scanning and posting, via the NRAO Library catalogue, full-text electronic versions of NRAO publications as time allows.
Those who prefer paper instead of electronic can purchase a soft-bound volume of any of the above titles for $15.00 plus shipping and handling. For more information, please contact the NRAO Library at: library@nrao.edu. We are unable to accept credit cards.
From the Archives: VLA Dedication
Ellen Bouton
The VLA was dedicated 30 years ago, on 10 October 1980. Left to right on the platform during the dedication ceremony: Ron Ekers [NRAO Associate Director for VLA Operations], Robert E. Hughes [AUI President-Elect], Carl Heiles [UC Berkeley, speaker for the scientific community], Harrison (Jack) Schmitt [New Mexico Senator], Donald N. Langenberg [NSF Acting Director], Bruce King [Governor of New Mexico], Frank Johnson [assistant director for AAEO], Morton S. Roberts [NRAO Director], John Slaughter [NSF Director-Designate], and Frank Press [President's Science Advisor] at the podium. Also on the platform, but hidden either in the second row or behind the podium, were Pete Domenici [New Mexico Senator], Manny Lujan [New Mexico Congressman], Lew Branscomb [National Science Board], David S. Heeschen [former NRAO Director], Don Cooke [AUI Board of Trustees Chair], Jack Lancaster [VLA Project manager], and Gerald F. Tape [outgoing AUI President]. Dr. Tape's tenure as president ended at the conclusion of the dedication ceremony.
From the Archives is an ongoing series illustrating NRAO and U.S. radio astronomy history via images selected from our collections of individuals' and institutional papers. If readers have images they believe would be of interest to the Archives, please contact Ellen Bouton, ebouton@nrao.edu.
Career Opportunities
New Postings
Jansky Fellow: The National Radio Astronomy Observatory invites applications for the position Jansky Fellow. The purpose of the position is to provide an opportunity for young scientists to establish themselves as independent researchers so that they may more effectively compete for permanent positions.
Web Designer: The National Radio Astronomy Observatory in Charlottesville, VA invites applications for the position Web Designer. The Web Designer will work in consultation with the NRAO scientific, technical, and outreach staff to design, develop, and maintain the Observatory's science web site that communicates scientific and technical information to scientific users of the NRAO research facilities. The successful candidate will also work in consultation with a range of Observatory stakeholders to design, develop, and maintain the NRAO Intranet as a visually attractive and effective internal communication tool.