The SDSS-IV Extended Baryon Oscillation Spectroscopic Survey: Baryon Acoustic Oscillations at Redshift of 0.72 with the DR14 Luminous Red Galaxy Sample
The extended Baryon Oscillation Spectroscopic Survey (eBOSS) Data Release 14 sample includes 80,118 luminous red galaxies (LRGs). By combining these galaxies with the high-redshift tail of the BOSS galaxy sample, we form a sample of LRGs at an effective redshift z = 0.72, covering an effective volum...
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| Veröffentlicht in: | The Astrophysical journal 2018-08, Vol.863 (1), p.110 |
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| creator | Bautista, Julian E. Vargas-Magaña, Mariana Dawson, Kyle S. Percival, Will J. Brinkmann, Jonathan Brownstein, Joel Camacho, Benjamin Comparat, Johan Gil-Marín, Hector Mueller, Eva-Maria Newman, Jeffrey A. Prakash, Abhishek Ross, Ashley J. Schneider, Donald P. Seo, Hee-Jong Tinker, Jeremy Tojeiro, Rita Zhai, Zhongxu Zhao, Gong-Bo |
| description | The extended Baryon Oscillation Spectroscopic Survey (eBOSS) Data Release 14 sample includes 80,118 luminous red galaxies (LRGs). By combining these galaxies with the high-redshift tail of the BOSS galaxy sample, we form a sample of LRGs at an effective redshift z = 0.72, covering an effective volume of 0.9 Gpc3. We account for spurious fluctuations caused by targeting and by redshift failures, which were validated on a set of mock catalogs. This analysis is sufficient to provide a 2.5% measurement of spherically averaged baryon acoustic oscillations (BAO), Mpc, at 2.8 of significance. Together with the recent quasar-based BAO measurement at z = 1.5 and forthcoming emission line galaxy-based measurements, this measurement demonstrates that eBOSS is fulfilling its remit of extending the range of redshifts covered by such measurements, laying the groundwork for forthcoming surveys such as the Dark Energy Spectroscopic Survey and Euclid. |
| doi_str_mv | 10.3847/1538-4357/aacea5 |
| format | Article |
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By combining these galaxies with the high-redshift tail of the BOSS galaxy sample, we form a sample of LRGs at an effective redshift z = 0.72, covering an effective volume of 0.9 Gpc3. We account for spurious fluctuations caused by targeting and by redshift failures, which were validated on a set of mock catalogs. This analysis is sufficient to provide a 2.5% measurement of spherically averaged baryon acoustic oscillations (BAO), Mpc, at 2.8 of significance. Together with the recent quasar-based BAO measurement at z = 1.5 and forthcoming emission line galaxy-based measurements, this measurement demonstrates that eBOSS is fulfilling its remit of extending the range of redshifts covered by such measurements, laying the groundwork for forthcoming surveys such as the Dark Energy Spectroscopic Survey and Euclid.</description><identifier>ISSN: 0004-637X</identifier><identifier>EISSN: 1538-4357</identifier><identifier>DOI: 10.3847/1538-4357/aacea5</identifier><language>eng</language><publisher>Philadelphia: The American Astronomical Society</publisher><subject>Acoustic surveying ; Astrophysics ; Baryons ; Dark energy ; distance scale ; Emission lines ; Emission measurements ; Galactic evolution ; Galaxies ; large-scale structure of universe ; Oscillations ; Physics ; Quasars ; Red shift ; Sky surveys (astronomy) ; Spectroscopy ; Stars & galaxies ; Variation</subject><ispartof>The Astrophysical journal, 2018-08, Vol.863 (1), p.110</ispartof><rights>2018. 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J</addtitle><description>The extended Baryon Oscillation Spectroscopic Survey (eBOSS) Data Release 14 sample includes 80,118 luminous red galaxies (LRGs). By combining these galaxies with the high-redshift tail of the BOSS galaxy sample, we form a sample of LRGs at an effective redshift z = 0.72, covering an effective volume of 0.9 Gpc3. We account for spurious fluctuations caused by targeting and by redshift failures, which were validated on a set of mock catalogs. This analysis is sufficient to provide a 2.5% measurement of spherically averaged baryon acoustic oscillations (BAO), Mpc, at 2.8 of significance. 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Together with the recent quasar-based BAO measurement at z = 1.5 and forthcoming emission line galaxy-based measurements, this measurement demonstrates that eBOSS is fulfilling its remit of extending the range of redshifts covered by such measurements, laying the groundwork for forthcoming surveys such as the Dark Energy Spectroscopic Survey and Euclid.</abstract><cop>Philadelphia</cop><pub>The American Astronomical Society</pub><doi>10.3847/1538-4357/aacea5</doi><tpages>17</tpages><orcidid>https://orcid.org/0000-0001-7984-5476</orcidid><orcidid>https://orcid.org/0000-0002-9885-3989</orcidid><orcidid>https://orcid.org/0000-0001-8684-2222</orcidid><orcidid>https://orcid.org/0000-0002-0553-3805</orcidid><orcidid>https://orcid.org/0000-0003-4451-4444</orcidid><orcidid>https://orcid.org/0000-0002-8725-1069</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | Acoustic surveying Astrophysics Baryons Dark energy distance scale Emission lines Emission measurements Galactic evolution Galaxies large-scale structure of universe Oscillations Physics Quasars Red shift Sky surveys (astronomy) Spectroscopy Stars & galaxies Variation |
| title | The SDSS-IV Extended Baryon Oscillation Spectroscopic Survey: Baryon Acoustic Oscillations at Redshift of 0.72 with the DR14 Luminous Red Galaxy Sample |
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