<oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
  <dc:creator>Zhang, Yucheng</dc:creator>
  <dc:creator>Pullen, Anthony R</dc:creator>
  <dc:creator>Alam, Shadab</dc:creator>
  <dc:creator>Singh, Sukhdeep</dc:creator>
  <dc:creator>Burtin, Etienne</dc:creator>
  <dc:creator>Chuang, Chia-Hsun</dc:creator>
  <dc:creator>Hou, Jiamin</dc:creator>
  <dc:creator>Lyke, Brad W</dc:creator>
  <dc:creator>Myers, Adam D</dc:creator>
  <dc:creator>Neveux, Richard</dc:creator>
  <dc:creator>Ross, Ashley J</dc:creator>
  <dc:creator>Rossi, Graziano</dc:creator>
  <dc:creator>Zhao, Cheng</dc:creator>
  <dc:date>2020</dc:date>
  <dc:description xmlns:ns0="xml" ns0:lang="en">&lt;jats:title&gt;Abstract&lt;/jats:title&gt;
               &lt;jats:p&gt;We test general relativity (GR) at the effective redshift $\bar{z} \sim 1.5$ by estimating the statistic EG, a probe of gravity, on cosmological scales 19 − 190 h−1Mpc. This is the highest-redshift and largest-scale estimation of EG so far. We use the quasar sample with redshifts 0.8 &amp;amp;lt; z &amp;amp;lt; 2.2 from Sloan Digital Sky Survey IV extended Baryon Oscillation Spectroscopic Survey (eBOSS) Data Release 16 (DR16) as the large-scale structure (LSS) tracer, for which the angular power spectrum $C_\ell ^{qq}$ and the redshift-space distortion (RSD) parameter β are estimated. By cross correlating with the Planck 2018 cosmic microwave background (CMB) lensing map, we detect the angular cross-power spectrum $C_\ell ^{\kappa q}$ signal at 12 σ significance. Both jackknife resampling and simulations are used to estimate the covariance matrix (CM) of EG at 5 bins covering different scales, with the later preferred for its better constraints on the covariances. We find EG estimates agree with the GR prediction at 1 σ level over all these scales. With the CM estimated with 300 simulations, we report a best-fit scale-averaged estimate of $E_G(\bar{z})=0.30\pm 0.05$, which is in line with the GR prediction $E_G^{\rm GR}(\bar{z})=0.33$ with Planck 2018 CMB+BAO matter density fraction Ωm = 0.31. The statistical errors of EG with future LSS surveys at similar redshifts will be reduced by an order of magnitude, which makes it possible to constrain modified gravity models.&lt;/jats:p&gt;</dc:description>
  <dc:identifier>https://sonar.ch/global/documents/80025</dc:identifier>
  <dc:language>eng</dc:language>
  <dc:relation>info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/staa3672</dc:relation>
  <dc:relation>info:eu-repo/semantics/altIdentifier/issn/0035-8711</dc:relation>
  <dc:source>Monthly Notices of the Royal Astronomical Society. - Oxford University Press (OUP). - 2020</dc:source>
  <dc:subject xmlns:ns1="xml" ns1:lang="en">Space and Planetary Science</dc:subject>
  <dc:subject xmlns:ns2="xml" ns2:lang="en">Astronomy and Astrophysics</dc:subject>
  <dc:title xmlns:ns3="xml" ns3:lang="en">Testing General Relativity on cosmological scales at redshift z ∼ 1.5 with quasar and CMB lensing</dc:title>
  <dc:type>http://purl.org/coar/resource_type/c_6501</dc:type>
</oai_dc:dc>