SnowMass2021

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====== CF4. Dark Energy and Cosmic Acceleration: The Modern Universe ======
^Name ^Institution ^Email |
|James Annis |Fermilab|annis[at]fnal.gov|
|Jeffrey Newman|Pittsburgh|janewman[at]pitt.edu|
|Anže Slosar |BNL|anze[at]bnl.gov|
====== Description ======
This group covers cosmic probes of cosmology in the Modern Universe, when galaxies are fully formed. These probes include galaxy clusters, galaxy clustering, redshift space distortions, gravitational lensing, baryonic acoustic oscillations, supernovae and more. Spectroscopic, broad-band and multi-wavelength surveys are examples of experiments that will be primarily discussed in this working group. Other examples include projects involving CMB, 21cm, and gravitational wave observations. 

====== Remote meetings in the run-up to November meeting  ======

Telecons will happen roughly biweekly on Mondays at 1 PM Pacific time (or equivalently 2PM Mountain, 3PM Central and 4PM Eastern times) at:

https://bnl.zoomgov.com/j/1611456655?pwd=SkxlN2piaG9LemRjM2hQazN0Vzlxdz09

The schedule should be updated on the Snowmass calendar and here:

^ Date ^ Topic 1 ^ Topic 2 ^ Recording ^
| July 15 | //Christophe Yeche (CEA-Irfu)://  \\ **[[https://www.cosmo.bnl.gov/www/Snowmass2020_CF4/MSE_Cosmo_ChY.pdf|MaunaKea Spectroscopic Explorer (MSE)]]** | //Kyle Dawson (University of Utah):// \\ **[[https://www.cosmo.bnl.gov/www/Snowmass2020_CF4/Snowmass_2020_Dawson.pdf|SpecTel]]** | [[https://pitt.hosted.panopto.com/Panopto/Pages/Viewer.aspx?id=7c3ae71c-7e7f-4774-86cb-abf90166d62f|recording]] |
| July 29 | // Martin White (Berkeley):// \\ **[[https://www.cosmo.bnl.gov/www/Snowmass2020_CF4/White_CF4.pdf|Cosmology before Noon]]** | // Alex Kim (Berkeley):// \\ **[[https://www.cosmo.bnl.gov/www/Snowmass2020_CF4/Kim_CF4.pdf|SN Peculiar Velocities Studies]]**  | [[https://pitt.hosted.panopto.com/Panopto/Pages/Viewer.aspx?id=bdbae448-518f-4075-97cf-ac070160ff62|recording]] |
| Aug 12 |// Sherry Suyu (MPA Garching):// \\ **[[https://www.cosmo.bnl.gov/www/Snowmass2020_CF4/Suyu_SnowmassCF4_12Aug2020.pdf|H0 with gravitational lenses in the next decade]]** |//Dave Erskine (LLNL), Eric Linder (Berkeley): // \\ **[[https://www.cosmo.bnl.gov/www/Snowmass2020_CF4/erskine_linder.pdf|Cosmology at cm/s scale using ultra stable spectroscopic interferometry]]**  | [[https://pitt.hosted.panopto.com/Panopto/Pages/Viewer.aspx?id=d3750167-63d5-4d19-a8a0-ac1501655110 | recording]] |
| Aug 26 |  LOI wordsmithing week  ||
| Sep 9 | // Simone Ferraro (LBL): // \\ **[[https://www.cosmo.bnl.gov/www/Snowmass2020_CF4/MegaMapper_ferraro.pdf|MegaMapper: Dark Energy and Inflation from spectroscopy at z>2]]**  | // Yun Wang (Caltech):// \\ **[[https://www.cosmo.bnl.gov/www/Snowmass2020_CF4/ATLAS-Probe-Snowmass21.pdf|ATLAS Probe: Astrophysics Telescope for Large Area Spectroscopy]]** | [[https://pitt.hosted.panopto.com/Panopto/Pages/Viewer.aspx?id=5948beca-32bf-4a35-bd61-ac3101785800 | recording]]  | 
| Sep 23| // Anže Slosar (BNL):// \\ **[[https://www.cosmo.bnl.gov/www/Snowmass2020_CF4/Slosar_PUMA.pdf|PUMA: Next Generation Intensity Mapping Experiment]]** |//Kirit Karkare (Chicago): // \\ **[[https://www.cosmo.bnl.gov/www/Snowmass2020_CF4/20200923_Karkare_mmLIM.pdf|Millimeter-Wave Line Intensity Mapping]]**  | [[https://pitt.hosted.panopto.com/Panopto/Pages/Viewer.aspx?id=bb0f10ee-a723-47f0-b6a2-ac3f01678bfd | recording (75% complete) ]]  |
| Oct 7 |  Community Planning Meeting  ||
| Oct 21| Discussion of spectroscopic facilities | | [[https://pitt.hosted.panopto.com/Panopto/Pages/Viewer.aspx?id=049ae11d-97f4-471d-9e8e-ac5b0168faf2  | recording ]]|
| Nov 4 | Planning the CF4 white papers | [[https://docs.google.com/presentation/d/1_gli8NLJyLm5LAlBjYEi26SNo0CUWPbkpscCmQsliqw/edit#slide=id.ga6f1afb18b_0_0 | slides]]| [[https://pitt.hosted.panopto.com/Panopto/Pages/Viewer.aspx?id=9186b34c-d64b-4c07-bb6f-ac6901709c15  | recording ]]|
| Feb 7| // Jennifer Marshall (MSE/TAMU):// \\ **[[https://drive.google.com/file/d/1sfY9Agtp6Q4FVGzp0c-Dg1gM2fgBEs9E/view?usp=sharing|MSE: Conceptual design and recent updates]]** |//Kyle Dawson (Utah): // \\ **[[https://drive.google.com/file/d/1WvDf9dtH51Wm00n0w66b_-8z63zMMubY/view?usp=sharing|ESO's wide field spectroscopic telescope]]**  | [[https://www.dropbox.com/s/zh02p5cx9xq3uxn/cf4_telescopes.mkv?dl=0| recording (bootlegged, w/ Anze's secret tech) ]]  |
====== Submitted LOIs ======
Here is the list of submitted LOIs to this  topic. 
 First index before "/"  corresponds to the primary frontier used for the submission.
 {{url>https://www.snowmass21.org/docs/files/list.php?frontier=CF4  border 100%,1200px}}