Science > Surveys > VLASS

VLA Sky Survey

News Update: Call for Community Comment on the VLASS Proposal

NRAO has issued a call for Community Comment on the VLASS Proposal prior to the formal Community Review in March 2015; all input received will provided to the Community Review Panel. This period of open community comment on the VLASS proposal will extend through 22 February 2015. See the link above for more details.

The final version of the VLASS survey proposal is posted on the NRAO VLASS wiki at:
https://safe.nrao.edu/wiki/pub/JVLA/VLASS/VLASS_final.pdf (Last revised 2015-02-06).

 


 

Very Large ArrayIn the 20 years since the initial observations were made for the NRAO VLA Sky Survey (NVSS) and the Faint Images of the Radio Sky at Twenty-Centimeters (FIRST), these pioneering programs have defined the state-of-the-art in centimeter radio sky surveys and produced a steady stream of excellent science. Given the enhanced capabilities of the Jansky Very Large Array (VLA), now is an appropriate time to discuss the scientific potential of new centimeter-wavelength sky surveys.

The astronomy community has already recognized that several of the high priority science goals of the 2010 decadal survey New Worlds, New Horizons in Astronomy and Astrophysics could be addressed by a new VLA sky survey. At the May 2013 Radio Astronomy in the LSST Era held at NRAO-Charlottesville, for example, many scientists expressed keen interest in employing the VLA to conduct new, wide-area centimeter wavelength sky surveys in support of multi-wavelength synoptic surveys using existing and future facilities, such as the Large Synoptic Survey Telescope (LSST).

Thus, we are announcing a NRAO VLA Sky Survey (VLASS) initiative that will explore the science and technical opportunities of a new centimeter-wavelength survey. A community-led Science Survey Group (SSG) will define the science program and key components of VLASS, and NRAO will support its technical definition and implementation. All VLASS data will be available immediately to the North American community.

Please join us for the VLASS Workshop at the AAS!

Additionally, a VLASS workshop for all interested community members is being organized directly preceding the January 2014 American Astronomical Society meeting at National Harbor, MD, on Sunday, 5 January 2014 from 10:00 AM - 4:00 PM. Stay tuned to eNews for further information.

The VLA Sky Survey Science Forum is open!

Posted 9 September 2013

We have created the VLA Sky Survey Science Forum to allow you to participate in the SSG process, and to generate, explore, and evolve ideas for the VLASS.

Call for White Papers

Posted 9 September 2013

The NRAO announces an open call for community white papers on the VLA Sky Survey (VLASS) concerning survey science goals, techniques, development areas, and overall design. Community white papers submitted for the VLASS will form the basis for discussion and presentations at the January AAS Workshop. Individuals or groups interested in attending and speaking at the workshop are strongly encouraged to submit white papers by 1 December 2013, to allow ample time for inclusion in the workshop. See the Call for VLASS White Papers link to the left for more details.

Call for SOC Nominations

Posted 26 September 2013, Updated 18 October 2013

Dear Colleague,

We are calling for nominations of individuals to serve on the Science Organizing Committee (SOC) that will guide the initial planning for the upcoming VLA Sky Survey (VLASS). The SOC will be primarily charged with review of White Papers received in response to the recent call, and with organization of the NRAO Very Large Array Sky Survey Science Planning Workshop, to be held on January 5, 2014, immediately prior to the upcoming 223rd meeting of the American Astronomical Society at National Harbor, MD. The SOC will also be tasked with setting up the community-led Science Survey Group (SSG) that will define the science program and key components of the VLASS.

Self nominations are welcome. The nomination should include name and contact information, including institutional affiliation, and a one paragraph statement giving any relevant interest and experience. Self nominations should also include a brief Curriculum Vitae (CV). Due to the recent shutdown, acceptance of nominations was extended to 5pm ET on Monday 21 October 2013. Updated 21 Oct: Nominations are now closed.

Colleagues who can represent the diverse interests of potential VLASS users, including those from multiple wavelength regimes, or colleagues who have expertise in sky survey planning and oversight, or those with interest in any of the science areas that would benefit from the VLASS, are all good candidates for the SOC. If you find this opportunity to participate in and enable the creation and definition of this next-generation large radio-wavelength survey compelling, or know of someone who would be an excellent candidate, please consider responding to this nomination call.

Regards,

Stefi Baum, Chair, VLASS Science Organizing Committee
Steve Myers, Lead, VLASS Survey Design Group
Claire Chandler, VLASS Project Director

FAQ Now Available

Posted 26 November 2013

We have now compiled a list of answers to Frequently Asked Questions. See our FAQ Page.

Reminder: Call for White Papers, Deadline Extended to Dec 15

Posted 27 November 2013

A gentle reminder that Individuals or groups interested in attending and speaking at the workshop are strongly encouraged to submit white papers on the VLASS. See the Call for VLASS White Papers link to the left for more details.

We have extended the White Paper submission deadline to 15 December 2013. In order to help us in organizing the AAS Workshop, we also request those who plan to submit White Papers to submit an abstract using the submission link by Dec 2 (or soon thereafter) so we will have an idea of what is being worked on. This is not a requirement for White Paper submission, and submission of an abstract does not bind you to submitting a White Paper with that exact abstract! This is to help us out now that the deadline has pushed into December.

Also, if you are a White Paper author and plan to be at the AAS Workshop, please indicate this in your abstract placeholder (or send us a separate email to vlass@nrao.edu). We would like to get an idea of attendance ahead of time, as there is no registration requirement (and you do not have to register for the AAS meeting to attend our public workshop).

SOC Appointed and at Work

Posted 12 December 2013

The recently appointed Science Organizing Committee for the upcoming Very Large Array Sky Survey Workshop at the AAS meeting is hard at work. The SOC members are:

  • Stefi Baum (RIT, Chair)
  • Shami Chatterjee (Cornell)
  • Tracy Clarke (NRL)
  • Jim Condon (NRAO)
  • Jackie Hodge (NRAO)
  • Karl Menten (MPIfR)
  • Eric Murphy (IPAC)
  • Steven Myers (NRAO, ex-officio)
  • Aneta Siemiginowska (CXC/SAO)
  • Vernesa Smolcic (U. Zagreb)
  • Alicia Soderberg (Harvard)
  • Michael Strauss (Princeton)
  • Rick White (STSCI)

A reminder that the workshop will be held 10:00 AM to 4:00 AM Sunday January 5 2014, as part of the AAS Meeting on the National Harbor in Maryland. No registration
required. All interested community members welcome - come and bring your collaborators, students, and colleagues from across the multi-wavelength spectrum!

Roughly a dozen White Papers and Abstracts have already been received covering diverse topics ranging from transients to lensing to polarization, covering our galaxy to the far
reaches of the universe and everything in between. There are less than 4 days remaining before the white paper submission deadline, so please consider submitting even a brief document with your ideas! And let us know if you plan on attending the workshop.

Initial White Papers Recieved and Posted

Posted 17 December 2013

We have received 18 White Papers and Abstracts in response to the first call for the December 15 deadline. Thanks to all who authored papers! You can find these for download on the VLASS White Paper page.

Note that if you missed the deadline or are inspired by the first round of papers with a new idea, we will be accepting submissions throughout the survey definition process so go ahead and tell us about it!

Update 3 January 2014

We now have received a total of 21 white papers and abstracts and posted online.

VLASS Science Planning Workshop a Success!

Posted 13 January 2014

The VLASS Science Planning Workshop was held on 5 January 2014 at the 223rd AAS Meeting in National Harbor, MD. There were around 50 attendees at peak. You can find the agenda and posted talks here.

Survey Science Group is Ready to Go!

Posted 19 February 2014

The VLASS Survey Science Group is ready for you to join in the quest to define the survey. Choose to participate in one or more of the Science Working Groups through our Discussion Forums. To receive announcements related to the survey, please register for the vlass-announce list.

VLASS Preliminary definition and summary available!

Posted 13 June 2014

The VLASS Survey Science Group (SSG) has put together a preliminary summary definition for the survey. This was based on SSG working group discussions over the past few months. Also, a reminder that if you want to receive announcements related to the survey, please register for the vlass-announce list.

VLASS Preliminary definition and summary available!

Posted 13 June 2014

The VLASS Survey Science Group (SSG) has put together a preliminary summary definition for the survey. This was based on SSG working group discussions over the past few months. Also, a reminder that if you want to receive announcements related to the survey, please register for the vlass-announce list.

First draft of VLASS Proposal available

Posted 12 September 2014

The first draft of the VLASS survey proposal is now posted on the NRAO VLASS wiki at:
https://safe.nrao.edu/wiki/pub/JVLA/VLASS/VLASS.v11.pdf

This draft underwent some internal review and comment, and revision is currently underway based on those comments. We expect a new draft will be completed on or around October 15 and posted on the public wiki. This next version will be submitted for internal NRAO technical and science review, revised, and again posted for community comments around January 1, before finally being reviewed by an external committee. The entire astronomical community should feel welcome to submit comments on the proposal at any point during this process to this or the appropriate WG forums.

In devising this plan, the science white papers have been used and built upon to create a broad-based 3-tiered 2-4GHz high-resolution survey with all-sky, wide area, and deep field components. Although each individual tier could have made use of the full observing time to best promote those science goals, it was felt by the Survey Science Group (SSG) that a combined survey would provided the greatest impact for the widest user base.

Note that the initial draft of this proposal was written with the goal of observing commencing in late 2015. With a review now envisioned for early March 2015, upon a green-light the observing for VLASS would start no earlier than Spring 2016.

The individual SSG Working Group chairs will also be posting to the relevant WG forums regarding issues for those groups going forward.

New public draft of VLASS Proposal available

Posted 16 October 2014

A new draft of the VLASS survey proposal is now posted on the NRAO VLASS wiki at:
https://safe.nrao.edu/wiki/pub/JVLA/VLASS/VLASS_subm1.pdf

This draft has been submitted to the NRAO Director for internal NRAO comment and review.

First draft of VLASS Technical Implementation Plan (TIP) available

Posted 3 November 2014

A first draft of the VLASS Techncial Implementation Plan (TIP) is now available at the VLASS wiki at https://safe.nrao.edu/wiki/pub/JVLA/VLASS/Technical_Implementation_Plan_for_the_VLASS_20141103.pdf

The TIP is the technical companion to the VLASS proposal and describes how the survey will be carried out, and includes estimates of resources required. This draft is now under review by NRAO managment and staff.

Final version of VLASS Proposal available

First Posted 16 January 2015, Last Revised 6 February 2015

The final version of the VLASS survey proposal is now posted on the NRAO VLASS wiki at:
https://safe.nrao.edu/wiki/pub/JVLA/VLASS/VLASS_final.pdf

This version reflects revisions made to the survey definition in response to the NRAO science and technical reviews, and is the version that the Community Review panel will evaluate in March.

The revised Technical Implementation Plan will be posted soon.

Call for Community Comment on the VLASS Proposal

Posted 26 January 2015

NRAO has issued a call for Community Comment on the VLASS Proposal prior to the formal Community Review in March 2015; all input received will provided to the Community Review Panel. This period of open community comment on the VLASS proposal will extend through 22 February 2015. See the link above for more details.

Technical Implementation Plan prepared for the VLASS Community Review

Posted 3 February 2015

The VLASS Technical Implementation Plan that will be part of the upcoming VLASS Community Review is now available.