NAOC Open IR
Kinematics and star formation of high-redshift hot dust-obscured quasars as seen by ALMA
Diaz-Santos, Tanio1,2,3; Assef, Roberto J.1; Eisenhardt, Peter R. M.4; Jun, Hyunsung D.5; Jones, Gareth C.6,7; Blain, Andrew W.8; Stern, Daniel4; Aravena, Manuel1; Tsai, Chao-Wei9; Lake, Sean E.9; Wu, Jingwen9,10; Gonzalez-Lopez, Jorge1
2021-10-07
Source PublicationASTRONOMY & ASTROPHYSICS
ISSN0004-6361
Volume654Pages:28
AbstractHot, dust-obscured galaxies (Hot DOGs) are a population of hyper-luminous obscured quasars identified by WISE. We present ALMA observations of the [C II] 158 mu m fine-structure line and underlying dust continuum emission in a sample of seven of the most extremely luminous (EL; L-bol >= 10(14) L-circle dot) Hot DOGs, at redshifts of z similar or equal to 3.0-4.6. The [C II] line is robustly detected in four objects, tentatively in one, and likely to have been red-shifted out of the spectral window in the remaining two, based on additional data. On average, [C II] is red-shifted by similar or equal to 780 km s(-1) from rest-frame ultraviolet emission lines. EL Hot DOGs consistently exhibit very high [C II] surface densities, with sigma([CII]) similar or equal to 1-2 x 10(9) L-circle dot kpc(-2), which is as high as the most extreme cases seen in other high-redshift quasars. As a population, EL Hot DOG hosts seem to be roughly centered on the main sequence of star-forming galaxies, but the uncertainties are substantial and individual sources can fall above and below. The average, intrinsic [C II] and dust continuum sizes (FWHMs) are similar or equal to 2.1 kpc and similar or equal to 1.6 kpc, respectively, with a very narrow range of line-to-continuum size ratios, 1.61 +/- 0.10, suggesting they could be linearly proportional. The [C II] velocity fields of EL Hot DOGs are diverse: from barely rotating structures, to resolved hosts with ordered, circular motions, to complex, disturbed systems that are likely the result of ongoing mergers. In contrast, all sources display large line-velocity dispersions, FWHM[CII] greater than or similar to 500 km s(-1), which are, on average, larger than optically and IR-selected quasars at similar or higher redshifts. We argue that one possible hypothesis that explains the lack of a common velocity structure, the systematically large dispersion of the ionized gas, and the presence of nearby companion galaxies, may be that the EL Hot DOG phase could be recurrent, rather than a single event. The dynamical friction from the frequent in-fall of neighbor galaxies and gas clumps, along with the subsequent quasar feedback, would contribute to the high turbulence of the gas within the host in a process that could potentially trigger not only one continuous EL, obscured event -but instead a number of recurrent, shorter-lived episodes as long as external accretion continues.
Keywordgalaxies formation galaxies evolution galaxies high-redshift quasars supermassive black holes galaxies ISM infrared galaxies
Funding OrganizationCASSACA ; CASSACA ; CONICYT fund CAS-CONICYT Call 2018 ; CONICYT fund CAS-CONICYT Call 2018 ; FONDECYT ; FONDECYT ; Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education ; Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education ; ERC ; ERC ; Science and Technology Facilities Council (STFC) ; Science and Technology Facilities Council (STFC) ; CONICYT + PCI + Instituto Max Planck de Astronomia ; CONICYT + PCI + Instituto Max Planck de Astronomia ; NSFC ; NSFC ; Chinese Academy of Sciences President's International Fellowship Initiative ; Chinese Academy of Sciences President's International Fellowship Initiative ; MSTC ; MSTC ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; CASSACA ; CASSACA ; CONICYT fund CAS-CONICYT Call 2018 ; CONICYT fund CAS-CONICYT Call 2018 ; FONDECYT ; FONDECYT ; Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education ; Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education ; ERC ; ERC ; Science and Technology Facilities Council (STFC) ; Science and Technology Facilities Council (STFC) ; CONICYT + PCI + Instituto Max Planck de Astronomia ; CONICYT + PCI + Instituto Max Planck de Astronomia ; NSFC ; NSFC ; Chinese Academy of Sciences President's International Fellowship Initiative ; Chinese Academy of Sciences President's International Fellowship Initiative ; MSTC ; MSTC ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; CASSACA ; CASSACA ; CONICYT fund CAS-CONICYT Call 2018 ; CONICYT fund CAS-CONICYT Call 2018 ; FONDECYT ; FONDECYT ; Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education ; Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education ; ERC ; ERC ; Science and Technology Facilities Council (STFC) ; Science and Technology Facilities Council (STFC) ; CONICYT + PCI + Instituto Max Planck de Astronomia ; CONICYT + PCI + Instituto Max Planck de Astronomia ; NSFC ; NSFC ; Chinese Academy of Sciences President's International Fellowship Initiative ; Chinese Academy of Sciences President's International Fellowship Initiative ; MSTC ; MSTC ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; CASSACA ; CASSACA ; CONICYT fund CAS-CONICYT Call 2018 ; CONICYT fund CAS-CONICYT Call 2018 ; FONDECYT ; FONDECYT ; Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education ; Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education ; ERC ; ERC ; Science and Technology Facilities Council (STFC) ; Science and Technology Facilities Council (STFC) ; CONICYT + PCI + Instituto Max Planck de Astronomia ; CONICYT + PCI + Instituto Max Planck de Astronomia ; NSFC ; NSFC ; Chinese Academy of Sciences President's International Fellowship Initiative ; Chinese Academy of Sciences President's International Fellowship Initiative ; MSTC ; MSTC ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration
DOI10.1051/0004-6361/202140455
WOS KeywordACTIVE GALACTIC NUCLEI ; C II EMISSION ; ULTRALUMINOUS INFRARED GALAXIES ; BLACK-HOLE GROWTH ; STELLAR POPULATION SYNTHESIS ; WISE-SELECTED HOT ; SIMILAR-TO 2-3 ; MU-M ; HOST GALAXIES ; MOLECULAR GAS
Language英语
Funding ProjectCASSACA ; CONICYT fund CAS-CONICYT Call 2018 ; FONDECYT[1191124] ; Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education[NRF-2017R1A6A3A04005158] ; ERC[695671] ; Science and Technology Facilities Council (STFC) ; CONICYT + PCI + Instituto Max Planck de Astronomia[MPG190030] ; NSFC[11973051] ; Chinese Academy of Sciences President's International Fellowship Initiative[2019PM0017/2021PM0076] ; MSTC[2016YFA0400702] ; National Aeronautics and Space Administration[80NM0018D0004]
Funding OrganizationCASSACA ; CASSACA ; CONICYT fund CAS-CONICYT Call 2018 ; CONICYT fund CAS-CONICYT Call 2018 ; FONDECYT ; FONDECYT ; Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education ; Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education ; ERC ; ERC ; Science and Technology Facilities Council (STFC) ; Science and Technology Facilities Council (STFC) ; CONICYT + PCI + Instituto Max Planck de Astronomia ; CONICYT + PCI + Instituto Max Planck de Astronomia ; NSFC ; NSFC ; Chinese Academy of Sciences President's International Fellowship Initiative ; Chinese Academy of Sciences President's International Fellowship Initiative ; MSTC ; MSTC ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; CASSACA ; CASSACA ; CONICYT fund CAS-CONICYT Call 2018 ; CONICYT fund CAS-CONICYT Call 2018 ; FONDECYT ; FONDECYT ; Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education ; Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education ; ERC ; ERC ; Science and Technology Facilities Council (STFC) ; Science and Technology Facilities Council (STFC) ; CONICYT + PCI + Instituto Max Planck de Astronomia ; CONICYT + PCI + Instituto Max Planck de Astronomia ; NSFC ; NSFC ; Chinese Academy of Sciences President's International Fellowship Initiative ; Chinese Academy of Sciences President's International Fellowship Initiative ; MSTC ; MSTC ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; CASSACA ; CASSACA ; CONICYT fund CAS-CONICYT Call 2018 ; CONICYT fund CAS-CONICYT Call 2018 ; FONDECYT ; FONDECYT ; Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education ; Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education ; ERC ; ERC ; Science and Technology Facilities Council (STFC) ; Science and Technology Facilities Council (STFC) ; CONICYT + PCI + Instituto Max Planck de Astronomia ; CONICYT + PCI + Instituto Max Planck de Astronomia ; NSFC ; NSFC ; Chinese Academy of Sciences President's International Fellowship Initiative ; Chinese Academy of Sciences President's International Fellowship Initiative ; MSTC ; MSTC ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; CASSACA ; CASSACA ; CONICYT fund CAS-CONICYT Call 2018 ; CONICYT fund CAS-CONICYT Call 2018 ; FONDECYT ; FONDECYT ; Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education ; Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education ; ERC ; ERC ; Science and Technology Facilities Council (STFC) ; Science and Technology Facilities Council (STFC) ; CONICYT + PCI + Instituto Max Planck de Astronomia ; CONICYT + PCI + Instituto Max Planck de Astronomia ; NSFC ; NSFC ; Chinese Academy of Sciences President's International Fellowship Initiative ; Chinese Academy of Sciences President's International Fellowship Initiative ; MSTC ; MSTC ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000704438300002
PublisherEDP SCIENCES S A
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/75107
Collection中国科学院国家天文台
Corresponding AuthorDiaz-Santos, Tanio
Affiliation1.Univ Diego Portales, Fac Ingn & Ciencias, Nucleo Astron, Av Ejercito Libertador 441, Santiago 8320000, Chile
2.Fdn Res & Technol Hellas FORTH, Inst Astrophys, Iraklion 70013, Greece
3.Chinese Acad Sci, Natl Astron Observ, Chinese Acad Sci South Amer Ctr Astron CASSACA, Beijing 100101, Peoples R China
4.CALTECH, Jet Prop Lab, 4800 Oak Grove Dr, Pasadena, CA 91109 USA
5.Korea Inst Adv Study, Sch Phys, 85 Hoegiro, Seoul 02455, South Korea
6.Univ Cambridge, Cavendish Lab, 19 JJ Thomson Ave, Cambridge CB3 0HE, England
7.Univ Cambridge, Kavli Inst Cosmol, Madingley Rd, Cambridge CB3 0HA, England
8.Univ Leicester, Phys & Astron, Univ Rd, Leicester LE1 7RH, Leics, England
9.Chinese Acad Sci, Natl Astron Observ, 20A Datun Rd, Beijing 100012, Peoples R China
10.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Diaz-Santos, Tanio,Assef, Roberto J.,Eisenhardt, Peter R. M.,et al. Kinematics and star formation of high-redshift hot dust-obscured quasars as seen by ALMA[J]. ASTRONOMY & ASTROPHYSICS,2021,654:28.
APA Diaz-Santos, Tanio.,Assef, Roberto J..,Eisenhardt, Peter R. M..,Jun, Hyunsung D..,Jones, Gareth C..,...&Gonzalez-Lopez, Jorge.(2021).Kinematics and star formation of high-redshift hot dust-obscured quasars as seen by ALMA.ASTRONOMY & ASTROPHYSICS,654,28.
MLA Diaz-Santos, Tanio,et al."Kinematics and star formation of high-redshift hot dust-obscured quasars as seen by ALMA".ASTRONOMY & ASTROPHYSICS 654(2021):28.
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