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HI absorption towards low-luminosity radio-loud active galactic nuclei of different accretion modes and WISE colours
Chandola, Yogesh1; Saikia, D. J.2,3
2017-02-11
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Volume465Issue:1Pages:997-1007
AbstractHI absorption studies of active galaxies enable us to probe their circumnuclear regions and the general interstellar medium and study the supply of gas that may trigger nuclear activity. In this article, we investigate the dependence of the detection rate of HI absorption on the nature of radio galaxies based on their emission-line spectra and on the nature of host galaxies based on WISE colours and their radio structure, which may help us understand the different accretion modes. We find significant differences in the distributions of W2-W3 colour for sources with HI absorption detections and non-detections. We report a high detection rate of HI absorption in those galaxies with WISE infrared colours W2-W3 > 2, typical of gasrich systems, along with a compact radio structure. The HI detection rate for low-excitation radio galaxies ( LERGs) with W2-W3 > 2 and compact radio structure is high ( 70.6 +/- 20.4 per cent). In high-excitation radio galaxies ( HERGs), compact radio structure in the nuclear or circumnuclear region could give rise to absorption by gas in the dusty torus, in addition to gas in the interstellar medium. However, the higher specific star-formation rate ( sSFR) for LERGs with W2-W3 > 2 suggests that HI absorption may be largely due to star-forming gas in their hosts. LERGs with extended radio structure tend to have significantly lower values of W2-W3 compared with those with compact structure. Extended radio sources and those with W2-W3 < 2 have low H-I detection rates.
SubtypeArticle
KeywordGalaxies: Active Galaxies: General Galaxies: Nuclei Infrared: Galaxies Radio Continuum: Galaxies Radio Lines: Galaxies.
WOS HeadingsScience & Technology ; Physical Sciences
Funding OrganizationChinese Academy of Sciences Visiting Fellowship for Researchers from Developing Countries(2013FFJB0009) ; Chinese Academy of Sciences Visiting Fellowship for Researchers from Developing Countries(2013FFJB0009) ; National Natural Science Foundation of China (NSFC)(11550110181) ; National Natural Science Foundation of China (NSFC)(11550110181) ; China Ministry of Science and Technology under State Key Development Program for Basic Research (973 program)(2012CB821802) ; China Ministry of Science and Technology under State Key Development Program for Basic Research (973 program)(2012CB821802) ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; Alfred P. Sloan Foundation ; Alfred P. Sloan Foundation ; National Science Foundation ; National Science Foundation ; US Department of Energy Office of Science ; US Department of Energy Office of Science ; University of Arizona ; University of Arizona ; Brazilian Participation Group ; Brazilian Participation Group ; Brookhaven National Laboratory ; Brookhaven National Laboratory ; Carnegie Mellon University ; Carnegie Mellon University ; University of Florida ; University of Florida ; French Participation Group ; French Participation Group ; German Participation Group ; German Participation Group ; Harvard University ; Harvard University ; Instituto de Astrofisica de Canarias ; Instituto de Astrofisica de Canarias ; Michigan State/Notre Dame/JINA Participation Group ; Michigan State/Notre Dame/JINA Participation Group ; Johns Hopkins University ; Johns Hopkins University ; Lawrence Berkeley National Laboratory ; Lawrence Berkeley National Laboratory ; Max Planck Institute for Astrophysics ; Max Planck Institute for Astrophysics ; Max Planck Institute for Extraterrestrial Physics ; Max Planck Institute for Extraterrestrial Physics ; New Mexico State University ; New Mexico State University ; New York University ; New York University ; Ohio State University ; Ohio State University ; Pennsylvania State University ; Pennsylvania State University ; University of Portsmouth ; University of Portsmouth ; Princeton University ; Princeton University ; Spanish Participation Group ; Spanish Participation Group ; University of Tokyo ; University of Tokyo ; University of Utah ; University of Utah ; Vanderbilt University ; Vanderbilt University ; University of Virginia ; University of Virginia ; University of Washington ; University of Washington ; Yale University ; Yale University ; Chinese Academy of Sciences Visiting Fellowship for Researchers from Developing Countries(2013FFJB0009) ; Chinese Academy of Sciences Visiting Fellowship for Researchers from Developing Countries(2013FFJB0009) ; National Natural Science Foundation of China (NSFC)(11550110181) ; National Natural Science Foundation of China (NSFC)(11550110181) ; China Ministry of Science and Technology under State Key Development Program for Basic Research (973 program)(2012CB821802) ; China Ministry of Science and Technology under State Key Development Program for Basic Research (973 program)(2012CB821802) ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; Alfred P. Sloan Foundation ; Alfred P. Sloan Foundation ; National Science Foundation ; National Science Foundation ; US Department of Energy Office of Science ; US Department of Energy Office of Science ; University of Arizona ; University of Arizona ; Brazilian Participation Group ; Brazilian Participation Group ; Brookhaven National Laboratory ; Brookhaven National Laboratory ; Carnegie Mellon University ; Carnegie Mellon University ; University of Florida ; University of Florida ; French Participation Group ; French Participation Group ; German Participation Group ; German Participation Group ; Harvard University ; Harvard University ; Instituto de Astrofisica de Canarias ; Instituto de Astrofisica de Canarias ; Michigan State/Notre Dame/JINA Participation Group ; Michigan State/Notre Dame/JINA Participation Group ; Johns Hopkins University ; Johns Hopkins University ; Lawrence Berkeley National Laboratory ; Lawrence Berkeley National Laboratory ; Max Planck Institute for Astrophysics ; Max Planck Institute for Astrophysics ; Max Planck Institute for Extraterrestrial Physics ; Max Planck Institute for Extraterrestrial Physics ; New Mexico State University ; New Mexico State University ; New York University ; New York University ; Ohio State University ; Ohio State University ; Pennsylvania State University ; Pennsylvania State University ; University of Portsmouth ; University of Portsmouth ; Princeton University ; Princeton University ; Spanish Participation Group ; Spanish Participation Group ; University of Tokyo ; University of Tokyo ; University of Utah ; University of Utah ; Vanderbilt University ; Vanderbilt University ; University of Virginia ; University of Virginia ; University of Washington ; University of Washington ; Yale University ; Yale University
DOI10.1093/mnras/stw2705
WOS KeywordDIGITAL SKY SURVEY ; EARLY-TYPE GALAXIES ; ADVECTION-DOMINATED ACCRETION ; INFRARED-SURVEY-EXPLORER ; STAR-FORMATION RATES ; BLACK-HOLES ; HOST GALAXIES ; I ABSORPTION ; ELLIPTIC GALAXIES ; ABSORBING GAS
Indexed BySCI
Language英语
Funding OrganizationChinese Academy of Sciences Visiting Fellowship for Researchers from Developing Countries(2013FFJB0009) ; Chinese Academy of Sciences Visiting Fellowship for Researchers from Developing Countries(2013FFJB0009) ; National Natural Science Foundation of China (NSFC)(11550110181) ; National Natural Science Foundation of China (NSFC)(11550110181) ; China Ministry of Science and Technology under State Key Development Program for Basic Research (973 program)(2012CB821802) ; China Ministry of Science and Technology under State Key Development Program for Basic Research (973 program)(2012CB821802) ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; Alfred P. Sloan Foundation ; Alfred P. Sloan Foundation ; National Science Foundation ; National Science Foundation ; US Department of Energy Office of Science ; US Department of Energy Office of Science ; University of Arizona ; University of Arizona ; Brazilian Participation Group ; Brazilian Participation Group ; Brookhaven National Laboratory ; Brookhaven National Laboratory ; Carnegie Mellon University ; Carnegie Mellon University ; University of Florida ; University of Florida ; French Participation Group ; French Participation Group ; German Participation Group ; German Participation Group ; Harvard University ; Harvard University ; Instituto de Astrofisica de Canarias ; Instituto de Astrofisica de Canarias ; Michigan State/Notre Dame/JINA Participation Group ; Michigan State/Notre Dame/JINA Participation Group ; Johns Hopkins University ; Johns Hopkins University ; Lawrence Berkeley National Laboratory ; Lawrence Berkeley National Laboratory ; Max Planck Institute for Astrophysics ; Max Planck Institute for Astrophysics ; Max Planck Institute for Extraterrestrial Physics ; Max Planck Institute for Extraterrestrial Physics ; New Mexico State University ; New Mexico State University ; New York University ; New York University ; Ohio State University ; Ohio State University ; Pennsylvania State University ; Pennsylvania State University ; University of Portsmouth ; University of Portsmouth ; Princeton University ; Princeton University ; Spanish Participation Group ; Spanish Participation Group ; University of Tokyo ; University of Tokyo ; University of Utah ; University of Utah ; Vanderbilt University ; Vanderbilt University ; University of Virginia ; University of Virginia ; University of Washington ; University of Washington ; Yale University ; Yale University ; Chinese Academy of Sciences Visiting Fellowship for Researchers from Developing Countries(2013FFJB0009) ; Chinese Academy of Sciences Visiting Fellowship for Researchers from Developing Countries(2013FFJB0009) ; National Natural Science Foundation of China (NSFC)(11550110181) ; National Natural Science Foundation of China (NSFC)(11550110181) ; China Ministry of Science and Technology under State Key Development Program for Basic Research (973 program)(2012CB821802) ; China Ministry of Science and Technology under State Key Development Program for Basic Research (973 program)(2012CB821802) ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; Alfred P. Sloan Foundation ; Alfred P. Sloan Foundation ; National Science Foundation ; National Science Foundation ; US Department of Energy Office of Science ; US Department of Energy Office of Science ; University of Arizona ; University of Arizona ; Brazilian Participation Group ; Brazilian Participation Group ; Brookhaven National Laboratory ; Brookhaven National Laboratory ; Carnegie Mellon University ; Carnegie Mellon University ; University of Florida ; University of Florida ; French Participation Group ; French Participation Group ; German Participation Group ; German Participation Group ; Harvard University ; Harvard University ; Instituto de Astrofisica de Canarias ; Instituto de Astrofisica de Canarias ; Michigan State/Notre Dame/JINA Participation Group ; Michigan State/Notre Dame/JINA Participation Group ; Johns Hopkins University ; Johns Hopkins University ; Lawrence Berkeley National Laboratory ; Lawrence Berkeley National Laboratory ; Max Planck Institute for Astrophysics ; Max Planck Institute for Astrophysics ; Max Planck Institute for Extraterrestrial Physics ; Max Planck Institute for Extraterrestrial Physics ; New Mexico State University ; New Mexico State University ; New York University ; New York University ; Ohio State University ; Ohio State University ; Pennsylvania State University ; Pennsylvania State University ; University of Portsmouth ; University of Portsmouth ; Princeton University ; Princeton University ; Spanish Participation Group ; Spanish Participation Group ; University of Tokyo ; University of Tokyo ; University of Utah ; University of Utah ; Vanderbilt University ; Vanderbilt University ; University of Virginia ; University of Virginia ; University of Washington ; University of Washington ; Yale University ; Yale University
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000393782000069
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/8293
Collection射电天文研究部
Affiliation1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
2.State Univ, Cotton Coll, Panbazar 781001, Guwahati, India
3.TIFR, NCRA, Post Bag 3, Pune 411007, Maharashtra, India
Recommended Citation
GB/T 7714
Chandola, Yogesh,Saikia, D. J.. HI absorption towards low-luminosity radio-loud active galactic nuclei of different accretion modes and WISE colours[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2017,465(1):997-1007.
APA Chandola, Yogesh,&Saikia, D. J..(2017).HI absorption towards low-luminosity radio-loud active galactic nuclei of different accretion modes and WISE colours.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,465(1),997-1007.
MLA Chandola, Yogesh,et al."HI absorption towards low-luminosity radio-loud active galactic nuclei of different accretion modes and WISE colours".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 465.1(2017):997-1007.
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