NAOC Open IR
Heavy X-ray obscuration in the most luminous galaxies discovered by WISE
Vito, F.1,2; Brandt, W. N.1,2,3; Stern, D.4; Assef, R. J.5; Chen, C. -T. J.1,2; Brightman, M.6; Comastri, A.7; Eisenhardt, P.4; Garmire, G. P.8; Hickox, R.9; Lansbury, G.10; Tsai, C. -W.11; Walton, D. J.10; Wu, J. W.12
2018-03-01
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
ISSN0035-8711
Volume474Issue:4Pages:4528-4540
AbstractHot dust-obscured galaxies (DOGs) are hyperluminous (L8-1000 mu m > 10(13) L-circle dot) infrared galaxies with extremely high (up to hundreds of K) dust temperatures. The sources powering both their extremely high luminosities and dust temperatures are thought to be deeply buried and rapidly accreting supermassive black holes (SMBHs). Hot DOGs could therefore represent a key evolutionary phase in which the SMBH growth peaks. X-ray observations can be used to study their obscuration levels and luminosities. In this work, we present the X-ray properties of the 20 most luminous (L-bol greater than or similar to 10(14) L-circle dot) known hot DOGs at z = 2-4.6. Five of them are covered by long-exposure (10-70 ks) Chandra and XMM-Newton observations, with three being X-ray detected, and we study their individual properties. One of these sources (W0116-0505) is a Compton-thick candidate, with column density N-H = (1.0-1.5) x 1024 cm(-2) derived from X-ray spectral fitting. The remaining 15 hot DOGs have been targeted by a Chandra snapshot (3.1 ks) survey. None of these 15 are individually detected; therefore, we applied a stacking analysis to investigate their average emission. From hardness ratio analysis, we constrained the average obscuring column density and intrinsic luminosity to be log N-H (cm(-2)) > 23.5 and L-X greater than or similar to 10(44) erg s(-1), which are consistent with results for individually detected sources. We also investigated the L-X-L-6 (mu m) and L-X-L-bol relations, finding hints that hot DOGs are typically X-ray weaker than expected, although larger samples of luminous obscured quasi-stellar objects are needed to derive solid conclusions.
Keywordgalaxies: active galaxies: evolution galaxies: nuclei quasars: general X-rays: galaxies
Funding OrganizationPenn State ACIS Instrument Team ; Penn State ACIS Instrument Team ; NASA ; NASA ; V.M. Willaman Endowment ; V.M. Willaman Endowment ; FONDECYT ; FONDECYT ; Chandra X-ray Center ; Chandra X-ray Center ; STFC ; STFC ; MSTC ; MSTC ; Smithsonian Astrophysical Observatory ; Smithsonian Astrophysical Observatory ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; ESA ; ESA ; NASA ; NASA ; Penn State ACIS Instrument Team ; Penn State ACIS Instrument Team ; NASA ; NASA ; V.M. Willaman Endowment ; V.M. Willaman Endowment ; FONDECYT ; FONDECYT ; Chandra X-ray Center ; Chandra X-ray Center ; STFC ; STFC ; MSTC ; MSTC ; Smithsonian Astrophysical Observatory ; Smithsonian Astrophysical Observatory ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; ESA ; ESA ; NASA ; NASA ; Penn State ACIS Instrument Team ; Penn State ACIS Instrument Team ; NASA ; NASA ; V.M. Willaman Endowment ; V.M. Willaman Endowment ; FONDECYT ; FONDECYT ; Chandra X-ray Center ; Chandra X-ray Center ; STFC ; STFC ; MSTC ; MSTC ; Smithsonian Astrophysical Observatory ; Smithsonian Astrophysical Observatory ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; ESA ; ESA ; NASA ; NASA ; Penn State ACIS Instrument Team ; Penn State ACIS Instrument Team ; NASA ; NASA ; V.M. Willaman Endowment ; V.M. Willaman Endowment ; FONDECYT ; FONDECYT ; Chandra X-ray Center ; Chandra X-ray Center ; STFC ; STFC ; MSTC ; MSTC ; Smithsonian Astrophysical Observatory ; Smithsonian Astrophysical Observatory ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; ESA ; ESA ; NASA ; NASA
DOI10.1093/mnras/stx3120
WOS KeywordACTIVE GALACTIC NUCLEI ; SUPERMASSIVE BLACK-HOLES ; DUST-OBSCURED GALAXIES ; EXTREMELY RED QUASARS ; INFRARED-SPECTRA ; TYPE-1 QUASARS ; COSMOS FIELD ; AGN ; LUMINOSITIES ; TORI
Language英语
Funding ProjectPenn State ACIS Instrument Team[SV4-74018] ; NASA[NAS8-03060] ; NASA[13-ADAP13-0092] ; V.M. Willaman Endowment ; FONDECYT[1151408] ; Chandra X-ray Center[17700696] ; STFC ; MSTC[2016YFA0400702] ; Smithsonian Astrophysical Observatory[SV2-82024] ; National Aeronautics and Space Administration ; ESA ; NASA
Funding OrganizationPenn State ACIS Instrument Team ; Penn State ACIS Instrument Team ; NASA ; NASA ; V.M. Willaman Endowment ; V.M. Willaman Endowment ; FONDECYT ; FONDECYT ; Chandra X-ray Center ; Chandra X-ray Center ; STFC ; STFC ; MSTC ; MSTC ; Smithsonian Astrophysical Observatory ; Smithsonian Astrophysical Observatory ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; ESA ; ESA ; NASA ; NASA ; Penn State ACIS Instrument Team ; Penn State ACIS Instrument Team ; NASA ; NASA ; V.M. Willaman Endowment ; V.M. Willaman Endowment ; FONDECYT ; FONDECYT ; Chandra X-ray Center ; Chandra X-ray Center ; STFC ; STFC ; MSTC ; MSTC ; Smithsonian Astrophysical Observatory ; Smithsonian Astrophysical Observatory ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; ESA ; ESA ; NASA ; NASA ; Penn State ACIS Instrument Team ; Penn State ACIS Instrument Team ; NASA ; NASA ; V.M. Willaman Endowment ; V.M. Willaman Endowment ; FONDECYT ; FONDECYT ; Chandra X-ray Center ; Chandra X-ray Center ; STFC ; STFC ; MSTC ; MSTC ; Smithsonian Astrophysical Observatory ; Smithsonian Astrophysical Observatory ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; ESA ; ESA ; NASA ; NASA ; Penn State ACIS Instrument Team ; Penn State ACIS Instrument Team ; NASA ; NASA ; V.M. Willaman Endowment ; V.M. Willaman Endowment ; FONDECYT ; FONDECYT ; Chandra X-ray Center ; Chandra X-ray Center ; STFC ; STFC ; MSTC ; MSTC ; Smithsonian Astrophysical Observatory ; Smithsonian Astrophysical Observatory ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; ESA ; ESA ; NASA ; NASA
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000424977800020
PublisherOXFORD UNIV PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/37226
Collection中国科学院国家天文台
Corresponding AuthorVito, F.
Affiliation1.Penn State Univ, Dept Astron & Astrophys, 525 Davey Lab, University Pk, PA 16802 USA
2.Penn State Univ, Inst Gravitat & Cosmos, University Pk, PA 16802 USA
3.Penn State Univ, Dept Phys, 104 Davey Lab, University Pk, PA 16802 USA
4.CALTECH, Jet Prop Lab, 4800 Oak Grove Dr, Pasadena, CA 91109 USA
5.Univ Diego Portales, Fac Ingn & Ciencias, Nucleo Astron, Av Ejercito Libertador 441, Santiago, Chile
6.CALTECH, Cahill Ctr Astrophys, 1216 East Calif Blvd, Pasadena, CA 91125 USA
7.INAF Osservatorio Astron Bologna, Via Gobetti 93-3, I-40129 Bologna, Italy
8.Huntingdon Inst Xray Astron LLC, 10677 Franks Rd, Huntingdon, PA 16652 USA
9.Dartmouth Coll, Dept Phys & Astron, Hanover, NH 03755 USA
10.Univ Cambridge, Inst Astron, Madingley Rd, Cambridge CB3 0HA, England
11.Univ Calif Los Angeles, Dept Phys & Astron, 430 Portola Plaza, Los Angeles, CA 90095 USA
12.Chinese Acad Sci, Natl Astron Observ, 20A Datun Rd, Beijing 100012, Peoples R China
Recommended Citation
GB/T 7714
Vito, F.,Brandt, W. N.,Stern, D.,et al. Heavy X-ray obscuration in the most luminous galaxies discovered by WISE[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2018,474(4):4528-4540.
APA Vito, F..,Brandt, W. N..,Stern, D..,Assef, R. J..,Chen, C. -T. J..,...&Wu, J. W..(2018).Heavy X-ray obscuration in the most luminous galaxies discovered by WISE.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,474(4),4528-4540.
MLA Vito, F.,et al."Heavy X-ray obscuration in the most luminous galaxies discovered by WISE".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 474.4(2018):4528-4540.
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