| Title | The Sloan Digital Sky Survey Reverberation Mapping Project: Improving Lag Detection with an Extended Multiyear Baseline |
| Authors | Shen, Yue Grier, C. J. Horne, Keith Brandt, W. N. Trump, J. R. Hall, P. B. Kinemuchi, K. Starkey, David Schneider, D. P. Ho, Luis C. Homayouni, Y. Li, Jennifer I-Hsiu McGreer, Ian D. Peterson, B. M. Bizyaev, Dmitry Chen, Yuguang Dawson, K. S. Eftekharzadeh, Sarah Green, P. J. Guo, Yucheng Jia, Siyao Jiang, Linhua Kneib, Jean-Paul Li, Feng Li, Zefeng Nie, Jundan Oravetz, Audrey Oravetz, Daniel Pan, Kaike Petitjean, Patrick Ponder, Kara A. Rogerson, Jesse Vivek, M. Zhang, Tianmeng Zou, Hu |
| Affiliation | Univ Illinois, Dept Astron, Urbana, IL 61801 USA Univ Illinois, Natl Ctr Supercomp Applicat, Urbana, IL 61801 USA Penn State Univ, Eberly Coll Sci, Dept Astron & Astrophys, 525 Davey Lab, University Pk, PA 16802 USA Penn State Univ, Inst Gravitat & Cosmos, University Pk, PA 16802 USA Univ Arizona, Steward Observ, 933 North Cherry Ave, Tucson, AZ 85721 USA Univ St Andrews, SUPA Phys & Astron, St Andrews KY16 9SS, Fife, Scotland Penn State Univ, Dept Phys, 104 Davey Lab, University Pk, PA 16802 USA Univ Connecticut, Dept Phys, 2152 Hillside Rd,Unit 3046, Storrs, CT 06269 USA York Univ, Dept Phys & Astron, Toronto, ON M3J 1P3, Canada Apache Point Observ, POB 59, Sunspot, NM 88349 USA New Mexico State Univ, POB 59, Sunspot, NM 88349 USA Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China Peking Univ, Sch Phys, Dept Astron, Beijing 100871, Peoples R China Univ Connecticut, Dept Phys, 2152 Hillside Rd Unit 3046, Storrs, CT 06269 USA Ohio State Univ, Dept Astron, 140 W 18th Ave, Columbus, OH 43210 USA Ohio State Univ, Ctr Cosmol & AstroParticle Phys, 191 West Woodruff Ave, Columbus, OH 43210 USA Space Telescope Sci Inst, 3700 San Martin Dr, Baltimore, MD 21218 USA Moscow MV Lomonosov State Univ, Sternberg Astron Inst, Moscow, Russia CALTECH, 1200 E Calif Blvd,MC 249-17, Pasadena, CA 91125 USA Univ Utah, Dept Phys & Astron, 115 S 1400 E, Salt Lake City, UT 84112 USA Harvard Smithsonian Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA Univ Calif Berkeley, Dept Astron, Berkeley, CA 94720 USA EPFL, Observ Sauverny, Lab Astrophys, Inst Phys, CH-1290 Versoix, Switzerland Aix Marseille Univ, CNRS, LAM, UMR 7326, F-13388 Marseille, France Changzhou Univ, Sch Math & Phys, Changzhou 213164, Peoples R China Chinese Acad Sci, Natl Astron Observ, Key Lab Opt Astron, Beijing 100012, Peoples R China Sorbonne Univ, Inst Astrophys Paris, 98Bis Blvd Arago, F-75014 Paris, France CNRS, 98Bis Blvd Arago, F-75014 Paris, France Univ Calif Berkeley, Berkeley Ctr Cosmol Phys, 341 Campbell Hall, Berkeley, CA 94720 USA Canada Aviat & Space Museum, 11 Aviat Pkwy, Ottawa, ON K1K 4Y5, Canada Chinese Acad Sci, Natl Astron Observ, Key Lab Opt Astron, Beijing 10101, Peoples R China Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 101408, Peoples R China |
| Issue Date | 2019 |
| Publisher | ASTROPHYSICAL JOURNAL LETTERS |
| Abstract | We investigate the effects of extended multiyear light curves (9 yr photometry and 5 yr spectroscopy) on the detection of time lags between the continuum variability and broad-line response of quasars at z greater than or similar to 1.5, and compare with the results using 4 yr photometry+spectroscopy presented in a companion paper. We demonstrate the benefits of the extended light curves in three cases: (1) lags that are too long to be detected by the shorter-duration data but can be detected with the extended data; (2) lags that are recovered by the extended light curves but are missed in the shorter-duration data due to insufficient light-curve quality; and (3) lags for different broad-line species in the same object. These examples demonstrate the importance of long-term monitoring for reverberation mapping to detect lags for luminous quasars at high redshift, and the expected performance of the final data set from the Sloan Digital Sky Survey Reverberation Mapping project that will have 11 yr photometric and 7 yr spectroscopic baselines. |
| URI | http://hdl.handle.net/20.500.11897/545078 |
| ISSN | 2041-8205 |
| DOI | 10.3847/2041-8213/ab3e0f |
| Indexed | SCI(E) EI |
| Appears in Collections: | 科维理天文与天体物理研究所 物理学院 |
