دورية أكاديمية
The Extended Baryon Oscillation Spectroscopic Survey: Measuring the Cross-correlation between the MgII Flux Transmission Field and Quasars and Galaxies at $z = 0.59$
| العنوان: | The Extended Baryon Oscillation Spectroscopic Survey: Measuring the Cross-correlation between the MgII Flux Transmission Field and Quasars and Galaxies at $z = 0.59$ |
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| المؤلفون: | Du Mas Des Bourboux, Hélion, Dawson, Kyle S., Busca, Nicolás G., Blomqvist, Michael, de Sainte Agathe, Victoria, Balland, Christophe, Bautista, Julian E., Guy, Julien, Kamble, Vikrant, Myers, Adam D., Pérez-Ràfols, Ignasi, Pieri, Matthew M., Rich, James, Schneider, Donald P., Slosar, Anže |
| المساهمون: | Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Astrophysique de Marseille (LAM), Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Université Paris-Saclay-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), eBOSS, ANR-16-CE31-0021,eBOSS,Sondes cosmologiques de la gravitation et de l'énergie noire(2016) |
| المصدر: | Astrophys.J. ; https://hal.science/hal-01999297Test ; Astrophys.J., 2019, 878 (1), pp.47. ⟨10.3847/1538-4357/ab1d49⟩ |
| بيانات النشر: | HAL CCSD |
| سنة النشر: | 2019 |
| مصطلحات موضوعية: | distance scale, intergalactic medium, large-scale structure of universe, quasars: absorption lines, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] |
| الوصف: | International audience ; We present the first attempt at measuring the baryonic acoustic oscillations (BAOs) in the large-scale cross-correlation between the magnesium-II doublet (Mg ii) flux transmission field and the position of quasar and galaxy tracers. The Mg ii flux transmission continuous field at 0.3 < z < 1.6 is measured from 500,589 quasar spectra obtained in the Baryonic Oscillation Spectroscopic Survey (BOSS) and the extended BOSS (eBOSS). The positions of 246,697 quasar tracers and 1346,776 galaxy tracers are extracted from the Sloan Digital Sky Survey I and II, BOSS, and eBOSS catalogs. In addition to measuring the cosmological BAO scale and the biased matter density correlation, this study allows tests and improvements to cosmological Lyα analyses. A feature consistent with that of the BAOs is detected at a significance of Δχ 2 = 7.25. The measured Mg ii linear transmission bias parameters are b Mg ii(2796) (z = 0.59) = (−6.82 ± 0.54) × 10−4 and b Mg ii(2804) (z = 0.59) = (−5.55 ± 0.46) ×10−4, and the Mg i bias is b Mg i(2853) (z = 0.59) = (−1.48 ± 0.24) × 10−4. Their redshift evolution is characterized by the power-law index: γ Mg = 3.36 ± 0.46. These measurements open a new window toward using BAOs from flux transmission at z < 1 in the final eBOSS sample and in the upcoming sample from the Dark Energy Spectroscopic Instrument. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| العلاقة: | info:eu-repo/semantics/altIdentifier/arxiv/1901.01950; hal-01999297; https://hal.science/hal-01999297Test; ARXIV: 1901.01950; INSPIRE: 1712451 |
| DOI: | 10.3847/1538-4357/ab1d49 |
| الإتاحة: | https://doi.org/10.3847/1538-4357/ab1d49Test https://hal.science/hal-01999297Test |
| رقم الانضمام: | edsbas.3DD10B53 |
| قاعدة البيانات: | BASE |
| DOI: | 10.3847/1538-4357/ab1d49 |
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