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Title: Constraining the baryon-dark matter relative velocity with the large-scale 3-point correlation function of the SDSS BOSS DR12 CMASS galaxies

Abstract

We search for a galaxy clustering bias due to a modulation of galaxy number with the baryon-dark matter relative velocity resulting from recombination-era physics. We find no detected signal and place the constraint bv <0.01 on the relative velocity bias for the CMASS galaxies. This bias is an important potential systematic of Baryon Acoustic Oscillation (BAO) method measurements of the cosmic distance scale using the 2-point clustering. Our limit on the relative velocity bias indicates a systematic shift of no more than 0.3% rms in the distance scale inferred from the BAO feature in the BOSS 2-point clustering, well below the 1% statistical error of this measurement. In conclusion, this constraint is the most stringent currently available and has important implications for the ability of upcoming large-scale structure surveys such as DESI to self-protect against the relative velocity as a possible systematic.

Authors:
 [1];  [2];  [1];  [3];  [4];  [5]; ;  [6];  [7];  [3];  [8];  [3];  [9];  [10];  [11]
  1. Harvard-Smithsonian Center for Astrophysics, Cambridge, MA (United States)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)
  3. The Ohio State Univ., Columbus, OH (United States)
  4. Univ. of Utah, Salt Lake City, UT (United States)
  5. Sorbonne Univ., Paris (France); Univ. Pierre et Marie Curie, Paris (France)
  6. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Carnegie Mellon Univ., Pittsburgh, PA (United States); Univ. of California, Berkeley, CA (United States)
  7. Leibniz-Institut fur Astrophysik Potsdam (AIP), Potsdam (Germany)
  8. Univ. of Portsmouth, Portsmouth (United Kingdom)
  9. Sejong Univ., Seoul (Korea)
  10. Ohio Univ., Athens, OH (United States)
  11. Univ. Nacional Autonoma de Mexico (Mexico)
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25); National Science Foundation (NSF); UK Science and Technology Facilities Research Council; UK Space Agency; European Research Council (ERC); National Research Foundation of Korea (NRF)
OSTI Identifier:
1324263
Report Number(s):
BNL-112474-2016-JA
Journal ID: ISSN 0035-8711; KA2301020
Grant/Contract Number:  
SC0012704; SC0013718; DGE-1144152; ST/N00180X/1
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Monthly Notices of the Royal Astronomical Society
Additional Journal Information:
Journal Volume: 474; Journal Issue: 2; Journal ID: ISSN 0035-8711
Publisher:
Royal Astronomical Society
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS

Citation Formats

Slepian, Zachary, Slosar, Anze, Eisenstein, Daniel J., Blazek, Jonathan A., Brownstein, Joel R., Gil-Martin, Hector, Chia -Hsun Chuang, Ho, Shirley, Kitaura, Francisco -Shu, McEwen, Joseph E., Percival, Will J., Ross, Ashley J., Rossi, Graziano, Seo, Hee -Jong, and Vargas-Magana, Mariana. Constraining the baryon-dark matter relative velocity with the large-scale 3-point correlation function of the SDSS BOSS DR12 CMASS galaxies. United States: N. p., 2017. Web. doi:10.1093/mnras/stx2723.
Slepian, Zachary, Slosar, Anze, Eisenstein, Daniel J., Blazek, Jonathan A., Brownstein, Joel R., Gil-Martin, Hector, Chia -Hsun Chuang, Ho, Shirley, Kitaura, Francisco -Shu, McEwen, Joseph E., Percival, Will J., Ross, Ashley J., Rossi, Graziano, Seo, Hee -Jong, & Vargas-Magana, Mariana. Constraining the baryon-dark matter relative velocity with the large-scale 3-point correlation function of the SDSS BOSS DR12 CMASS galaxies. United States. doi:10.1093/mnras/stx2723.
Slepian, Zachary, Slosar, Anze, Eisenstein, Daniel J., Blazek, Jonathan A., Brownstein, Joel R., Gil-Martin, Hector, Chia -Hsun Chuang, Ho, Shirley, Kitaura, Francisco -Shu, McEwen, Joseph E., Percival, Will J., Ross, Ashley J., Rossi, Graziano, Seo, Hee -Jong, and Vargas-Magana, Mariana. Tue . "Constraining the baryon-dark matter relative velocity with the large-scale 3-point correlation function of the SDSS BOSS DR12 CMASS galaxies". United States. doi:10.1093/mnras/stx2723.
@article{osti_1324263,
title = {Constraining the baryon-dark matter relative velocity with the large-scale 3-point correlation function of the SDSS BOSS DR12 CMASS galaxies},
author = {Slepian, Zachary and Slosar, Anze and Eisenstein, Daniel J. and Blazek, Jonathan A. and Brownstein, Joel R. and Gil-Martin, Hector and Chia -Hsun Chuang and Ho, Shirley and Kitaura, Francisco -Shu and McEwen, Joseph E. and Percival, Will J. and Ross, Ashley J. and Rossi, Graziano and Seo, Hee -Jong and Vargas-Magana, Mariana},
abstractNote = {We search for a galaxy clustering bias due to a modulation of galaxy number with the baryon-dark matter relative velocity resulting from recombination-era physics. We find no detected signal and place the constraint bv <0.01 on the relative velocity bias for the CMASS galaxies. This bias is an important potential systematic of Baryon Acoustic Oscillation (BAO) method measurements of the cosmic distance scale using the 2-point clustering. Our limit on the relative velocity bias indicates a systematic shift of no more than 0.3% rms in the distance scale inferred from the BAO feature in the BOSS 2-point clustering, well below the 1% statistical error of this measurement. In conclusion, this constraint is the most stringent currently available and has important implications for the ability of upcoming large-scale structure surveys such as DESI to self-protect against the relative velocity as a possible systematic.},
doi = {10.1093/mnras/stx2723},
journal = {Monthly Notices of the Royal Astronomical Society},
number = 2,
volume = 474,
place = {United States},
year = {Tue Oct 24 00:00:00 EDT 2017},
month = {Tue Oct 24 00:00:00 EDT 2017}
}

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