Journal
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
Volume 216, Issue 1, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0067-0049/216/1/4
Keywords
black hole physics; galaxies: active; line: profiles; quasars: general; survey
Categories
Funding
- NASA through Hubble Fellowship [HST-HF-51314.0]
- Space Telescope Science Institute [NAS 5-26555]
- NSF [AST-1108604, AST-1302093, AST-1008882]
- Chinese Academy of Sciences from the Strategic Priority Research Program [XDB09030102]
- National Natural Science Foundation of China [11473002]
- Alfred P. Sloan Foundation
- National Science Foundation
- U.S. Department of Energy Office of Science
- CFHT Canadian, Chinese
- French TACs
- National Astronomical Observatories
- Chinese Academy of Sciences
- Ministry of Finance in China
- Science and Technology Facilities Council [ST/J001651/1] Funding Source: researchfish
- STFC [ST/J001651/1] Funding Source: UKRI
- Direct For Mathematical & Physical Scien [1302093] Funding Source: National Science Foundation
- Division Of Astronomical Sciences [1008882, 1107682, 1009756] Funding Source: National Science Foundation
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The Sloan Digital Sky Survey Reverberation Mapping (SDSS-RM) project is a dedicated multi-object RM experiment that has spectroscopically monitored a sample of 849 broad-line quasars in a single 7 deg(2) field with the SDSS-III Baryon Oscillation Spectroscopic Survey spectrograph. The RM quasar sample is flux-limited to i(psf) = 21.7 mag, and covers a redshift range of 0.1 < z < 4.5 without any other cuts on quasar properties. Optical spectroscopy was performed during 2014 January-July dark/gray time, with an average cadence of similar to 4 days, totaling more than 30 epochs. Supporting photometric monitoring in the g and i bands was conducted at multiple facilities including the Canada-France-Hawaii Telescope (CFHT) and the Steward Observatory Bok telescope in 2014, with a cadence of similar to 2 days and covering all lunar phases. The RM field (R.A., decl. = 14: 14:49.00, +53: 05: 00.0) lies within the CFHT-LS W3 field, and coincides with the Pan-STARRS 1 (PS1) Medium Deep Field MD07, with three prior years of multi-band PS1 light curves. The SDSS-RM six month baseline program aims to detect time lags between the quasar continuum and broad line region (BLR) variability on timescales of up to several months (in the observed frame) for similar to 10% of the sample, and to anchor the time baseline for continued monitoring in the future to detect lags on longer timescales and at higher redshift. SDSS-RM is the first major program to systematically explore the potential of RM for broad-line quasars at z > 0.3, and will investigate the prospects of RM with all major broad lines covered in optical spectroscopy. SDSS-RM will provide guidance on future multi-object RM campaigns on larger scales, and is aiming to deliver more than tens of BLR lag detections for a homogeneous sample of quasars. We describe the motivation, design, and implementation of this program, and outline the science impact expected from the resulting data for RM and general quasar science.
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