Science Program

by Davis Murphy last modified Nov 18, 2015 by Lyndele von Schill

Wireless internet access is available on: NRAO-public

Talks available at:

Friday, October 9, 2015
0800 – 0820 Registration
0820 – 0830 Welcome Tony Beasley
Session I:  Physics of Accretion, State of the IGM
Chair:  T. Heckman
0830 – 0900 I-1: Physical Processes Affecting Gas Accretion onto Galaxies Shull
0900 – 0930 I-2: Simulating Effects of Winds on the Evolution Galaxies and Circum-galactic Medium: Current Status and Challenges Kravstov
0930 – 1000 I-3: Tracing Cosmic Accretion: A Theoretical Perspective Kollmeier
1000 - 1030 I-4: Observational Evidence for Accretion from HI imaging van Gorkom
1030 – 1034 4 Poster Flash - Alpaslan, Cousin, Goldman, Hafen
1034 - 1100 Coffee & Poster Session
Chair: Hsiao-Wen Chen
1100 – 1130 I-5: What Observations of Circum-galactic Gas Tell Us about Accretion Werk
1130 – 1145 C-1: Gas Cycles in Galaxies: IGM, ISM amd SF Borthakur
1145 – 1200 C-2: Observational Constraints on Cold Flow Disks with a Background Quasar Finley
1200 – 1230   I-6:  Detecting Inflowing Gas in Mg II and Fe II at Intermediate Redshift Coil
1230 – 1245 C-3: On the Possible Environmental Effect in Distributing Heavy Elements Beyond Individual Gaseous Haloes Johnson
1245 – 1400 Lunch & Poster Session
Session II: IGM/CGM, Hot to Cool transition; Accretion in Cluster Environments
Chair:  Juna Kollmeier
1400 – 1415 Evidence for Accretion onto Galaxies from UV Observations and Implications for Future Radio HI Survey Lehner
1415 – 1430 C-5: On the Observed and Simulated Profiles of Circum-galactic Medium Liang
1430 – 1500   I-7:  Evidence of Cosmic Accretion in the RESOLVE Survey Kannappan
1500 – 1505 4 Poster flash - Ho, Zhu, Enwere
1505 – 1530 Coffee + Poster Session
Chair:  Fred Lo
1530 – 1600 I-8: Waterfalls or Rain: How Does Gas Get into Galaxies? Voit
1600 – 1630 I-9: Merging Galaxy Clusters van Weeren
1630 – 1645 C-6:  Gas Accretion in the Outskirts of the Virgo Cluster Kenney
1645 – 1730 Open Discussion I: Moderator: Heckman

Saturday, October 10, 2015
Session III:  Cool to Cold Transition
Chair:  Jacqueline van Gorkom
0830 – 0900 I-10: Detecting Galactic Accretion at High Redshift in Lyα Emission Rauch
0900 – 0930 I-11: Cosmic Web Imager Observations of Circum-Galactic and Circum-QSO Medium Emission at High C. Martin
0930 – 09:45 C-7: A Search for Cold Gas Accretion in Lyα Blob Yang
09:45 - 10:00 C-8:  Gas Inflow and Cosmic SF Efficiency in Galaxies at z~3 Bian
1000 – 1030 I-12:  First Detection of CH+ Line in High z Galaxies: a Direct Probe of Turbulent Dissipation Zwaan
10:30 - 1100 Break
1100 - 1115

C-9:  Cold Molecular Gas Across the IGM around High-z Radio Galaxies (Emonts)

1115 - 1130 C-10: ALMA View of Molecular Gas in Central Cluster Galaxies McNamara
Chair:  F. Walter
1130 – 1200 I-13:  Observational Evidence for Gas Accretion onto the Milky Way Fox
1200 – 1215 C-11: LITTLE THINGS: Blue Compact Galaxies Consuming Gas Ashley
1215 – 1223 6 Poster Flash (Cybulski, Cooke, Kunneriath, Lens, Tanimura, Vaddi)
1223 – 1400 Lunch + Poster Session
Session IV:  Neutral Gas and Future Prospects
Chair:  Megan Donahue
1400 – 1430 I-14:  Neutral Gas Outside Galaxy Disks in the Local Group Lockman
1430 – 1445 C-11: Evidence of Gas Accretion at the Disk-halo Interface of M33 Zheng
1445 – 1500 C-13: Diffuse Neutral Hydrogen in the Local Group Wolfe
1500 – 1515 C-14:  A GBT Survey of HALOGAS Galaxies Pingle
1515 – 1530 I-15: Future Projects to Explore the Circum-Galactic and Inter-Galactic Medium in Emission at Low and High Redshift C. Martin
1530 – 1630 Open Discussion II:  (Moderators:  Carilli, Walter)

This NAASC Accretion workshop will focus on examining direct observational evidence of the putative process of concentrating the baryon content of the Universe into dark haloes.

The science program was organized to address the following four areas:

(1) the basic physical processes and theoretical expectations from simulations that current and future observations would meaningfully confront;

(2) the latest observations on the reservoirs of baryons in the IGM and CGM at different redshifts, filamentary structure in the IGM, the intra-cluster medium, and the neutral components;

(3) observations of the exchange of gas of all phases between the reservoirs of baryons and galaxies/haloes in the general field, group and cluster environments, and in the larger structure of filaments; and

(4) future observations and possible special purpose instruments or telescopes/missions that could facilitate direct observations of gas accretion onto galaxies and future theoretical studies.