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Observing Galaxy Evolution in the Context of Large-Scale Structure

Dickinson, Mark and Wang, Yun and Bartlett, James and Behroozi, Peter and Brinchmann, Jarle and Capak, Peter and Chary, Ranga and Cimatti, Andrea and Coil, Alison and Conroy, Charlie and Daddi, Emanuele and Donahue, Megan and Eisenhardt, Peter and Ferguson, Henry C. and Furlanetto, Steve and Glazebrook, Karl and Gonzalez, Anthony and Helou, George and Hopkins, Philip F. and Kartaltepe, Jeyhan and Lee, Janice and Malhotra, Sangeeta and Marshall, Jennifer and Newman, Jeffrey A. and Orsi, Alvaro and Rhoads, James and Rhodes, Jason and Shapley, Alice and Wechsler, Risa H. (2019) Observing Galaxy Evolution in the Context of Large-Scale Structure. Astro2020 Science White Paper, . (Unpublished)

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Galaxies form and evolve in the context of their local and large-scale environments. Their baryonic content that we observe with imaging and spectroscopy is intimately connected to the properties of their dark matter halos, and to their location in the "cosmic web" of large-scale structure. Very large spectroscopic surveys of the local universe (e.g., SDSS and GAMA) measure galaxy positions (location within large-scale structure), statistical clustering (a direct constraint on dark matter halo masses), and spectral features (measuring physical conditions of the gas and stars within the galaxies, as well as internal velocities). Deep surveys with the James Webb Space Telescope (JWST) will revolutionize spectroscopic measurements of redshifts and spectral properties for galaxies out to the epoch of reionization, but with numerical statistics and over cosmic volumes that are too small to map large-scale structure and to constrain halo properties via clustering. Here, we consider advances in understanding galaxy evolution that would be enabled by very large spectroscopic surveys at high redshifts: very large numbers of galaxies (outstanding statistics) over large co-moving volumes (large-scale structure on all scales) over broad redshift ranges (evolution over most of cosmic history). The required observational facility can be established as part of the probe portfolio by NASA within the next decade.

Item Type:Report or Paper (White Paper)
Related URLs:
URLURL TypeDescription Paper
Dickinson, Mark0000-0001-5414-5131
Capak, Peter0000-0003-3578-6843
Chary, Ranga0000-0001-7583-0621
Conroy, Charlie0000-0002-1590-8551
Daddi, Emanuele0000-0002-3331-9590
Donahue, Megan0000-0002-2808-0853
Ferguson, Henry C.0000-0001-7113-2738
Furlanetto, Steve0000-0002-0658-1243
Gonzalez, Anthony0000-0002-0933-8601
Helou, George0000-0003-3367-3415
Hopkins, Philip F.0000-0003-3729-1684
Kartaltepe, Jeyhan0000-0001-9187-3605
Lee, Janice0000-0002-2278-9407
Malhotra, Sangeeta0000-0002-9226-5350
Newman, Jeffrey A.0000-0001-8684-2222
Rhoads, James0000-0002-1501-454X
Rhodes, Jason0000-0002-4485-8549
Shapley, Alice0000-0003-3509-4855
Wechsler, Risa H.0000-0003-2229-011X
Group:Infrared Processing and Analysis Center (IPAC), Astronomy Department
Series Name:Astro2020 Science White Paper
Record Number:CaltechAUTHORS:20190626-140614418
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:96745
Deposited By: Tony Diaz
Deposited On:27 Jun 2019 01:55
Last Modified:03 Oct 2019 21:25

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