Files and links (1)
Published, Version of Record (VoR)Open Access (License Unspecified), Open
Journal article
THE SLOAN DIGITAL SKY SURVEY REVERBERATION MAPPING PROJECT: FIRST BROAD-LINE H beta AND Mg II LAGS AT z greater than or similar to 0.3 FROM SIX-MONTH SPECTROSCOPY
The Astrophysical journal, v 818(1)
10 Feb 2016
Abstract
Reverberation mapping (RM) measurements of broad-line region (BLR) lags in z > 0.3 quasars are important for directly measuring black hole masses in these distant objects, but so far there have been limited attempts and success given the practical difficulties of RM in this regime. Here we report preliminary results of 15 BLR lag measurements from the Sloan Digital Sky Survey Reverberation Mapping (SDSS-RM) project, a dedicated RM program with multi-object spectroscopy designed for RM over a wide redshift range. The lags are based on the 2014 spectroscopic light curves alone (32 epochs over six months) and focus on the H beta and Mg II broad lines in the 100 lowest-redshift (z < 0.8) quasars included in SDSS-RM; they represent a small subset of the lags that SDSS-RM (including 849 quasars to z similar to 4.5) is expected to deliver. The reported preliminary lag measurements are for intermediate-luminosity quasars at 0.3 less than or similar to z < 0.8, including nine H beta lags and six Mg II lags, for the first time extending RM results to this redshift-luminosity regime and providing direct quasar black hole mass estimates over approximately half of cosmic time. The Mg II lags also increase the number of known Mg II lags by several fold. and start to explore the utility of Mg II for RM at high redshift. The location of these new lags at higher redshifts on the observed BLR size-luminosity relationship is statistically consistent with previous H beta results at z < 0.3. However, an independent constraint on the relationship slope at z > 0.3 is not yet possible owing to the limitations in our current sample. Our results demonstrate the general feasibility and potential of multi-object RM for z > 0.3 quasars.
Metrics
Details
- Title
- THE SLOAN DIGITAL SKY SURVEY REVERBERATION MAPPING PROJECT: FIRST BROAD-LINE H beta AND Mg II LAGS AT z greater than or similar to 0.3 FROM SIX-MONTH SPECTROSCOPY
- Creators
- Yue Shen - Carnegie ObservatoriesKeith Horne - University of St AndrewsC. J. Grier - Pennsylvania State UniversityBradley M. Peterson - The Ohio State UniversityKelly D. Denney - The Ohio State UniversityJonathan R. Trump - Pennsylvania State UniversityMouyuan Sun - Pennsylvania State UniversityW. N. Brandt - Pennsylvania State UniversityChristopher S. Kochanek - The Ohio State UniversityKyle S. Dawson - University of UtahPaul J. Green - Harvard University ,Jenny E. Greene - Princeton UniversityPatrick B. Hall - York UniversityLuis C. Ho - Peking UniversityLinhua Jiang - Peking UniversityKaren Kinemuchi - New Mexico State UniversityIan D. McGreer - University of ArizonaPatrick Petitjean - Institut d'Astrophysique de ParisGordon T. Richards - Drexel UniversityDonald P. Schneider - Pennsylvania State UniversityMichael A. Strauss - Princeton UniversityCharling Tao - Centre de Physique des Particules de Marseille, Aix-Marseille Université , CNRS/IN2P3, 163, avenue de Luminy—Case 902-F-13288 Marseille Cedex 09, FranceW. M. Wood-Vasey - University of PittsburghYing Zu - Carnegie Mellon UniversityKaike Pan - New Mexico State UniversityDmitry Bizyaev - New Mexico State UniversityJian Ge - University of Florida HealthDaniel Oravetz - New Mexico State UniversityAudrey Simmons - New Mexico State University
- Publication Details
- The Astrophysical journal, v 818(1)
- Publisher
- Iop Publishing Ltd
- Number of pages
- 17
- Grant note
- Space Telescope Science Institute ST/M001296/1 / Science and Technology Facilities Council; UK Research & Innovation (UKRI); Science & Technology Facilities Council (STFC) 11473002 / National Natural Science Foundation of China; National Natural Science Foundation of China (NSFC) ST/M001296/1 / STFC; UK Research & Innovation (UKRI); Science & Technology Facilities Council (STFC) AST-1517113 / NSF; National Science Foundation (NSF) 985 project at Peking University ST/M001296/1 / UK Science and Technology Facilities Council (STFC); UK Research & Innovation (UKRI); Science & Technology Facilities Council (STFC) HST-HF-51314; NAS 5-26555; HST-HF-51330 / NASA; National Aeronautics & Space Administration (NASA) V.M. Willaman Endowment AST-1008882 / National Science Foundation; National Science Foundation (NSF) AST-1302093 / NSF AAPF fellowship; National Science Foundation (NSF); NSF - Directorate for Mathematical & Physical Sciences (MPS) [2013] 3009 / China Scholarship Council Participating Institutions XDB09030102 / Chinese Academy of Science; Chinese Academy of Sciences National Science Foundation; National Science Foundation (NSF) U.S. Department of Energy Office of Science; United States Department of Energy (DOE) Alfred P. Sloan Foundation 1008882 / Division Of Astronomical Sciences; National Science Foundation (NSF); NSF - Directorate for Mathematical & Physical Sciences (MPS)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Physics; Pharmacology and Physiology
- Web of Science ID
- WOS:000370370800030
- Scopus ID
- 2-s2.0-84959109604
- Other Identifier
- 991019168543104721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Astronomy & Astrophysics