The Dark Energy Survey Year 3 and eBOSS: constraining galaxy intrinsic alignments across luminosity and colour space
S. SamuroffDepartment of Physics, Northeastern University , Boston, MA 02115 , USAR MandelbaumMcWilliams Center for Cosmology, Department of Physics, Carnegie Mellon University , Pittsburgh, PA 15213 , USAJ. BlazekDepartment of Physics, Northeastern University , Boston, MA 02115 , USAA CamposMcWilliams Center for Cosmology, Department of Physics, Carnegie Mellon University , Pittsburgh, PA 15213 , USAN MacCrannDepartment of Applied Mathematics and Theoretical Physics, University of Cambridge , Cambridge CB3 0WA , UKG ZacharegkasKavli Institute for Cosmological Physics, University of Chicago , Chicago, IL 60637 , USAA. AmonInstitute of Astronomy, University of Cambridge , Madingley Road, Cambridge CB3 0HA , UKJ PratDepartment of Astronomy and Astrophysics, University of Chicago , Chicago, IL 60637 , USASukhdeep SinghMcWilliams Center for Cosmology, Department of Physics, Carnegie Mellon University , Pittsburgh, PA 15213 , USAJ Elvin-PooleDepartment of Physics and Astronomy, University of Waterloo , 200 University Ave W, Waterloo, ON N2L 3G1 , CanadaA.J. RossCenter for Cosmology and Astro-Particle Physics, The Ohio State University , Columbus, OH 43210 , USAA. AlarconArgonne National Laboratory , 9700 South Cass Avenue, Lemont, IL 60439 , USAEric J. BaxterInstitute for Astronomy, University of Hawai’i , 2680 Woodlawn Drive, Honolulu, HI 96822 , USAK BechtolPhysics Department, University of Wisconsin-Madison , 2320 Chamberlin Hall, 1150 University Avenue Madison, WI 53706-1390 , USAM. R. BeckerArgonne National Laboratory , 9700 South Cass Avenue, Lemont, IL 60439 , USAG. M. BernsteinDepartment of Physics and Astronomy, University of Pennsylvania , Philadelphia, PA 19104 , USAA. Carnero RosellDepartamento de Astrofísica, Universidad de La Laguna , E-38206 La Laguna, Tenerife , SpainM. Carrasco KindCenter for Astrophysical Surveys, National Center for Supercomputing Applications , 1205 West Clark St, Urbana, IL 61801 , USAR CawthonPhysics Department, William Jewell College , Liberty, MO 64068 , USAC. ChangDepartment of Astronomy and Astrophysics, University of Chicago , Chicago, IL 60637 , USAR ChenDepartment of Physics, Duke University , Durham, NC 27708 , USAA ChoiNASA Goddard Space Flight Center , 8800 Greenbelt Rd, Greenbelt, MD 20771 , USAM. CrocceInstitut d’Estudis Espacials de Catalunya (IEEC) , E-08034 Barcelona , SpainC. DavisKavli Institute for Particle Astrophysics & Cosmology , P. O. Box 2450, Stanford University, Stanford, CA 94305 , USAJ DeRoseLawrence Berkeley National Laboratory , 1 Cyclotron Road, Berkeley, CA 94720 , USAS DodelsonMcWilliams Center for Cosmology, Department of Physics, Carnegie Mellon University , Pittsburgh, PA 15213 , USAC. DouxUniversité Grenoble AlpesA. Drlica-WagnerDepartment of Astronomy and Astrophysics, University of Chicago , Chicago, IL 60637 , USAK EckertDepartment of Physics and Astronomy, University of Pennsylvania , Philadelphia, PA 19104 , USAS EverettJet Propulsion Laboratory, California Institute of Technology , 4800 Oak Grove Dr, Pasadena, CA 91109 , USAA. FertéJet Propulsion Laboratory, California Institute of Technology , 4800 Oak Grove Dr, Pasadena, CA 91109 , USAM. GattiDepartment of Physics and Astronomy, University of Pennsylvania , Philadelphia, PA 19104 , USAG. GianniniDepartment of Astronomy and Astrophysics, University of Chicago , Chicago, IL 60637 , USAD GruenUniversity Observatory, Faculty of Physics, Ludwig-Maximilians-Universität , Scheinerstr 1, D-81679 Munich , GermanyR. A. GruendlCenter for Astrophysical Surveys, National Center for Supercomputing Applications , 1205 West Clark St, Urbana, IL 61801 , USAI HarrisonSchool of Physics and Astronomy, Cardiff University , Cardiff CF24 3AA , UKK HernerFermi National Accelerator Laboratory , P. O. Box 500, Batavia, IL 60510 , USAE M HuffJet Propulsion Laboratory, California Institute of Technology , 4800 Oak Grove Dr, Pasadena, CA 91109 , USAMike JarvisDepartment of Physics and Astronomy, University of Pennsylvania , Philadelphia, PA 19104 , USAN KuropatkinFermi National Accelerator Laboratory , P. O. Box 500, Batavia, IL 60510 , USAP-F LegetKavli Institute for Particle Astrophysics & Cosmology , P. O. Box 2450, Stanford University, Stanford, CA 94305 , USAPablo LemosMila – Quebec AI Institute , 6666 St-Urbain Street, 200 Montreal, QC, H2S 3H1 , CanadaJ. McCulloughKavli Institute for Particle Astrophysics & Cosmology , P. O. Box 2450, Stanford University, Stanford, CA 94305 , USAJ. MylesDepartment of Physics, Stanford University , 382 Via Pueblo Mall, Stanford, CA 94305 , USAA Navarro-AlsinaInstituto de Física Gleb Wataghin, Universidade Estadual de Campinas , Campinas, SP 13083-859 , BrazilSahil PandeyDepartment of Physics and Astronomy, University of Pennsylvania , Philadelphia, PA 19104 , USAA. PorredonCenter for Cosmology and Astro-Particle Physics, The Ohio State University , Columbus, OH 43210 , USAM RaveriDepartment of Physics, University of Genova and INFN , Via Dodecaneso 33, I-16146 Genova , ItalyM Rodriguez-MonroyCentro de Investigaciones Energéticas , Medioambientales y Tecnológicas (CIEMAT), Av. Complutense, 40, 28040 Madrid , SpainR. P. RollinsJodrell Bank Center for Astrophysics, School of Physics and Astronomy, University of Manchester , Oxford Road, Manchester M13 9PL , UKA. RoodmanKavli Institute for Particle Astrophysics & Cosmology , P. O. Box 2450, Stanford University, Stanford, CA 94305 , USAG RossiDepartment of Astronomy and Space Science, Sejong University , 05006 209, Neungdong-ro, Gwangjin-gu, Seoul , South KoreaE.S. RykoffKavli Institute for Particle Astrophysics & Cosmology , P. O. Box 2450, Stanford University, Stanford, CA 94305 , USAC. SánchezDepartment of Physics and Astronomy, University of Pennsylvania , Philadelphia, PA 19104 , USAL F SeccoDepartment of Astronomy and Astrophysics, University of Chicago , Chicago, IL 60637 , USAI. Sevilla-NoarbeCentro de Investigaciones Energéticas , Medioambientales y Tecnológicas (CIEMAT), Av. Complutense, 40, 28040 Madrid , SpainE. SheldonBrookhaven National Laboratory , Bldg 510, Upton, NY 11973 , USAT ShinDepartment of Physics and Astronomy, Stony Brook University , Stony Brook, NY 11794 , USAM. A. TroxelDepartment of Physics, Duke University , Durham, NC 27708 , USAI. TutusausDepartment of Physics and Astronomy, Stony Brook University , Stony Brook, NY 11794 , USAN WeaverdyckDépartement de Physique Théorique and Center for Astroparticle Physics, Université de Genève , 24 quai Ernest Ansermet, CH-1211 Geneva , SwitzerlandB YannyJet Propulsion Laboratory, California Institute of Technology , 4800 Oak Grove Dr, Pasadena, CA 91109 , USAB YinMcWilliams Center for Cosmology, Department of Physics, Carnegie Mellon University , Pittsburgh, PA 15213 , USAYan ZhangCerro Tololo Inter-American Observatory, NSF’s National Optical-Infrared Astronomy Research Laboratory , Casilla 603, La Serena, R5GW+PH , ChileJ ZuntzInstitute for Astronomy, University of Edinburgh , Edinburgh EH9 3HJ , UKM AguenaLaboratório Interinstitucional de e-Astronomia - LIneA , Rua Gal. José Cristino 77, Rio de Janeiro, RJ 20921-400 , BrazilO. AlvesDepartment of Physics, University of Michigan , Ann Arbor, MI 48109 , USAJ AnnisFermi National Accelerator Laboratory , P. O. Box 500, Batavia, IL 60510 , USAD. BaconInstitute of Cosmology and Gravitation, University of Portsmouth , Portsmouth PO1 3FX , UKE. BertinCNRS, Institut d’Astrophysique de Paris , UMR 7095, F-75014 Paris , FranceS. BocquetUniversity Observatory, Faculty of Physics, Ludwig-Maximilians-Universität , Scheinerstr 1, D-81679 Munich , GermanyDavid J. BrooksDepartment of Physics & Astronomy, University College London , Gower Street, London WC1E 6BT , UKD L BurkeDepartment of Physics, Stanford University , 382 Via Pueblo Mall, Stanford, CA 94305 , USAJ. CarreteroInstitut de Física d’Altes Energies (IFAE), The Barcelona Institute of Science and Technology , Campus UAB, E-08193 Bellaterra (Barcelona) SpainM. CostanziAstronomy Unit, Department of Physics, University of Trieste , via Tiepolo 11, I-34131 Trieste , ItalyL. N. da CostaLaboratório Interinstitucional de e-Astronomia - LIneA , Rua Gal. José Cristino 77, Rio de Janeiro, RJ 20921-400 , BrazilM. E. S. PereiraHamburger Sternwarte, Universität Hamburg , Gojenbergsweg 112, D-21029 Hamburg , GermanyJ. De VicenteCentro de Investigaciones Energéticas , Medioambientales y Tecnológicas (CIEMAT), Av. Complutense, 40, 28040 Madrid , SpainS DesaiDepartment of Physics, IIT Hyderabad , Kandi, Telangana 502285 , IndiaH. T. DiehlFermi National Accelerator Laboratory , P. O. Box 500, Batavia, IL 60510 , USAJ. P. DietrichUniversity Observatory, Faculty of Physics, Ludwig-Maximilians-Universität , Scheinerstr 1, D-81679 Munich , GermanyP DoelDepartment of Physics & Astronomy, University College London , Gower Street, London WC1E 6BT , UKI. FerreroInstitute of Theoretical Astrophysics , University of Oslo. P.O. Box 1029 Blindern, NO-0315 Oslo , NorwayB. FlaugherFermi National Accelerator Laboratory , P. O. Box 500, Batavia, IL 60510 , USAJ FriemanFermi National Accelerator Laboratory , P. O. Box 500, Batavia, IL 60510 , USAJ. García-BellidoInstituto de Fisica Teorica UAM/CSIC, Universidad Autonoma de Madrid , E-28049 Madrid , SpainS R HintonSchool of Mathematics and Physics, University of Queensland , Brisbane, QLD 4072 , AustraliaD L HollowoodK HonscheidCenter for Cosmology and Astro-Particle Physics, The Ohio State University , Columbus, OH 43210 , USAD J JamesCenter for Astrophysics | Harvard & Smithsonian , 60 Garden Street, Cambridge, MA 02138 , USAK. KuehnAustralian Astronomical Optics, Macquarie University , North Ryde, NSW 2113 , AustraliaO LahavDepartment of Physics & Astronomy, University College London , Gower Street, London WC1E 6BT , UKJ L MarshallGeorge P. and Cynthia Woods Mitchell Institute for Fundamental Physics and Astronomy, and Department of Physics and Astronomy, Texas A&M University , College Station, TX 77843 , USAP MelchiorDepartment of Astrophysical Sciences, Princeton University , Peyton Hall, Princeton, NJ 08544 , USAJ. Mena-FernándezCentro de Investigaciones Energéticas , Medioambientales y Tecnológicas (CIEMAT), Av. Complutense, 40, 28040 Madrid , SpainF. MenanteauCenter for Astrophysical Surveys, National Center for Supercomputing Applications , 1205 West Clark St, Urbana, IL 61801 , USAR MiquelInstitució Catalana de Recerca i Estudis Avançats , E-08010 Barcelona , SpainJ NewmanDepartment of Physics and Astronomy and PITT PACC, University of Pittsburgh , PA 15260 , USAA. PalmeseDepartment of Astronomy, University of California , Berkeley, 501 Campbell Hall, Berkeley, CA 94720 , USAA PieresDepartment of Astronomy, University of California , Berkeley, 501 Campbell Hall, Berkeley, CA 94720 , USA
2023en
ABI
Annotatsiya
ABSTRACT We present direct constraints on galaxy intrinsic alignments (IAs) using the Dark Energy Survey Year 3 (DES Y3), the Extended Baryon Oscillation Spectroscopic Survey (eBOSS), and its precursor, the Baryon Oscillation Spectroscopic Survey (BOSS). Our measurements incorporate photometric red sequence (redMaGiC) galaxies from DES with median redshift z ∼ 0.2–1.0, luminous red galaxies from eBOSS at z ∼ 0.8, and also an SDSS-III BOSS CMASS sample at z ∼ 0.5. We measure two-point IA correlations, which we fit using a model that includes lensing, magnification, and photometric redshift error. Fitting on scales 6 Mpc h−1 < rp < 70 Mpc h−1, we make a detection of IAs in each sample, at 5σ–22σ (assuming a simple one-parameter model for IAs). Using these red samples, we measure the IA–luminosity relation. Our results are statistically consistent with previous results, but offer a significant improvement in constraining power, particularly at low luminosity. With this improved precision, we see detectable dependence on colour between broadly defined red samples. It is likely that a more sophisticated approach than a binary red/blue split, which jointly considers colour and luminosity dependence in the IA signal, will be needed in future. We also compare the various signal components at the best-fitting point in parameter space for each sample, and find that magnification and lensing contribute $\sim 2\!-\!18~{{\ \rm per\ cent}}$ of the total signal. As precision continues to improve, it will certainly be necessary to account for these effects in future direct IA measurements. Finally, we make equivalent measurements on a sample of emission-line galaxies from eBOSS at z ∼ 0.8. We constrain the non-linear alignment amplitude to be $A_1=0.07^{+0.32}_{-0.42}$ (|A1| < 0.78 at 95 per cent CL).
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