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The LAMOST Survey of Background Quasars in the Vicinity of the Andromeda and Triangulum Galaxies. II. Results from the Commissioning Observations and the Pilot Surveys

Huo, Zhi-Ying and Yan, Lin (2013) The LAMOST Survey of Background Quasars in the Vicinity of the Andromeda and Triangulum Galaxies. II. Results from the Commissioning Observations and the Pilot Surveys. Astronomical Journal, 145 (6). Art. No. 159. ISSN 0004-6256. https://resolver.caltech.edu/CaltechAUTHORS:20140422-092048783

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Abstract

We present new quasars discovered in the vicinity of the Andromeda and Triangulum galaxies with the Large Sky Area Multi-Object Fiber Spectroscopic Telescope, also named the Guoshoujing Telescope, during the 2010 and 2011 observational seasons. Quasar candidates are selected based on the available Sloan Digital Sky Survey, Kitt Peak National Observatory 4 m telescope, Xuyi Schmidt Telescope Photometric Survey optical, and Wide-field Infrared Survey Explorer near-infrared photometric data. We present 509 new quasars discovered in a stripe of ~135 deg^2 from M31 to M33 along the Giant Stellar Stream in the 2011 pilot survey data sets, and also 17 new quasars discovered in an area of ~100 deg^2 that covers the central region and the southeastern halo of M31 in the 2010 commissioning data sets. These 526 new quasars have i magnitudes ranging from 15.5 to 20.0, redshifts from 0.1 to 3.2. They represent a significant increase of the number of identified quasars in the vicinity of M31 and M33. There are now 26, 62, and 139 known quasars in this region of the sky with i magnitudes brighter than 17.0, 17.5, and 18.0, respectively, of which 5, 20, and 75 are newly discovered. These bright quasars provide an invaluable collection with which to probe the kinematics and chemistry of the interstellar/intergalactic medium in the Local Group of galaxies. A total of 93 quasars are now known with locations within 2fdg5 of M31, of which 73 are newly discovered. Tens of quasars are now known to be located behind the Giant Stellar Stream, and hundreds are behind the extended halo and its associated substructures of M31. The much enlarged sample of known quasars in the vicinity of M31 and M33 can potentially be utilized to construct a perfect astrometric reference frame to measure the minute proper motions (PMs) of M31 and M33, along with the PMs of substructures associated with the Local Group of galaxies. Those PMs are some of the most fundamental properties of the Local Group.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1088/0004-6256/145/6/159DOIArticle
http://iopscience.iop.org/1538-3881/145/6/159/articlePublisherArticle
http://arxiv.org/abs/1304.3174arXivDiscussion Paper
ORCID:
AuthorORCID
Yan, Lin0000-0003-1710-9339
Additional Information:© 2013 American Astronomical Society. Received 2012 November 5; accepted 2013 April 7; published 2013 May 10. This work is partially supported by the Young Researcher Grant of National Astronomical Observatories, Chinese Academy of Sciences, and China Postdoctoral Science Foundation. We thank Professor Xuebing Wu and Xiaohui Fan for their careful reading and providing valuable comments and suggestions of this paper. We also thank Dr. Stephen Justham for improving the writing of the paper. The Guoshoujing Telescope (the Large Sky Area Multi- Object Fiber Spectroscopic Telescope, LAMOST) is a National Major Scientific Project built by the Chinese Academy of Sciences. Funding for the project has been provided by the National Development and Reform Commission. LAMOST is operated and managed by the National Astronomical Observatories, Chinese Academy of Sciences. Funding for SDSS and SDSS-II has been provided by the Alfred P. Sloan Foundation, the Participating Institutions, the National Science Foundation, the U.S. Department of Energy, the National Aeronautics and Space Administration, the Japanese Monbukagakusho, the Max Planck Society, and the Higher Education Funding Council for England. The SDSS Web site is http://www.sdss.org/. This publication makes use of data products from WISE, which is a joint project of the University of California, Los Angeles, and the Jet Propulsion Laboratory/California Institute of Technology, funded by the National Aeronautics and Space Administration. This research has made use of the NASA/IPAC Extragalactic Database (NED) which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration.
Group:Infrared Processing and Analysis Center (IPAC)
Funders:
Funding AgencyGrant Number
National Astronomical Observatories Young Researcher GrantUNSPECIFIED
Chinese Academy of SciencesUNSPECIFIED
China Postdoctoral Science FoundationUNSPECIFIED
Subject Keywords:galaxies: individual (M31, M33); quasars: emission lines; quasars: general
Issue or Number:6
Record Number:CaltechAUTHORS:20140422-092048783
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20140422-092048783
Official Citation:The LAMOST Survey of Background Quasars in the Vicinity of the Andromeda and Triangulum Galaxies. II. Results from the Commissioning Observations and the Pilot Surveys Zhi-Ying Huo et al. 2013 The Astronomical Journal 145 159
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:45107
Collection:CaltechAUTHORS
Deposited By: Jason Perez
Deposited On:22 Apr 2014 16:47
Last Modified:03 Oct 2019 06:26

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