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LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00004831naa a2200505 4500
001oai:research.chalmers.se:4f6f5e08-bc63-4210-910a-b20c3f9a5cf7
003SwePub
008230810s2023 | |||||||||||000 ||eng|
0247 a https://research.chalmers.se/publication/5369212 URI
0247 a https://doi.org/10.3847/2041-8213/acda272 DOI
040 a (SwePub)cth
041 a engb eng
042 9 SwePub
072 7a art2 swepub-publicationtype
072 7a ref2 swepub-contenttype
1001 a Ricci, C.u Beijing University of Technology,Universidad Diego Portales,Diego Portales University4 aut
2451 0a A Tight Correlation between Millimeter and X-Ray Emission in Accreting Massive Black Holes from
264 1c 2023
338 a electronic2 rdacarrier
520 a Recent studies have proposed that the nuclear millimeter continuum emission observed in nearby active galactic nuclei (AGNs) could be created by the same population of electrons that gives rise to the X-ray emission that is ubiquitously observed in accreting black holes. We present the results of a dedicated high-spatial-resolution (∼60-100 mas) Atacama Large Millimeter/submillimeter Array (ALMA) campaign on a volume-limited (<50 Mpc) sample of 26 hard X-ray (>10 keV) selected radio-quiet AGNs. We find an extremely high detection rate (25/26 or 94 − 6 + 3 % ), which shows that nuclear emission at millimeter wavelengths is nearly ubiquitous in accreting SMBHs. Our high-resolution observations show a tight correlation between the nuclear (1-23 pc) 100 GHz and the intrinsic X-ray emission (1σ scatter of 0.22 dex). The ratio between the 100 GHz continuum and the X-ray emission does not show any correlation with column density, black hole mass, Eddington ratio, or star formation rate, which suggests that the 100 GHz emission can be used as a proxy of SMBH accretion over a very broad range of these parameters. The strong correlation between 100 GHz and X-ray emission in radio-quiet AGNs could be used to estimate the column density based on the ratio between the observed 2-10 keV ( F 2 - 10 keV obs ) and 100 GHz (F 100 GHz) fluxes. Specifically, a ratio log ( F 2 - 10 keV obs / F 100 GHz ) ≤ 3.5 strongly suggests that a source is heavily obscured ( log ( N H / cm − 2 ) ≳ 23.8 ). Our work shows the potential of ALMA continuum observations to detect heavily obscured AGNs (up to an optical depth of one at 100 GHz, i.e., N H ≃ 1027 cm−2), and to identify binary SMBHs with separations <100 pc, which cannot be probed by current X-ray facilities.
650 7a NATURVETENSKAPx Fysikx Subatomär fysik0 (SwePub)103012 hsv//swe
650 7a NATURAL SCIENCESx Physical Sciencesx Subatomic Physics0 (SwePub)103012 hsv//eng
650 7a NATURVETENSKAPx Fysikx Astronomi, astrofysik och kosmologi0 (SwePub)103052 hsv//swe
650 7a NATURAL SCIENCESx Physical Sciencesx Astronomy, Astrophysics and Cosmology0 (SwePub)103052 hsv//eng
650 7a NATURVETENSKAPx Fysikx Atom- och molekylfysik och optik0 (SwePub)103022 hsv//swe
650 7a NATURAL SCIENCESx Physical Sciencesx Atom and Molecular Physics and Optics0 (SwePub)103022 hsv//eng
650 7a NATURVETENSKAPx Fysikx Fusion, plasma och rymdfysik0 (SwePub)103032 hsv//swe
650 7a NATURAL SCIENCESx Physical Sciencesx Fusion, Plasma and Space Physics0 (SwePub)103032 hsv//eng
7001 a Chang, Chin Shinu Atacama Large Millimeter-submillimeter Array (ALMA)4 aut
7001 a Kawamuro, Taikiu RIKEN4 aut
7001 a Privon, G.u National Radio Astronomy Observatory,University of Florida,University of Virginia4 aut
7001 a Mushotzky, Richardu University of Maryland4 aut
7001 a Trakhtenbrot, Bennyu Tel Aviv University4 aut
7001 a Laor, Ariu Technion – Israel Institute of Technology4 aut
7001 a Koss, Michael J.u Space Science Institute,Eureka Scientific4 aut
7001 a Smith, Krista L.u Southern Methodist University4 aut
7001 a Gupta, Kriti K.u Universidad Diego Portales,Diego Portales University4 aut
7001 a Dimopoulos, Georgiosu Universidad Diego Portales,Diego Portales University4 aut
7001 a Aalto, Susanne,d 1964u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)saalto
7001 a Ros, Eduardou Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)4 aut
7102 a Beijing University of Technologyb Universidad Diego Portales4 org
7730 t Astrophysical Journal Lettersg 952:2q 952:2x 2041-8213x 2041-8205
8564 u https://research.chalmers.se/publication/536921/file/536921_Fulltext.pdfx primaryx freey FULLTEXT
8564 8u https://research.chalmers.se/publication/536921
8564 8u https://doi.org/10.3847/2041-8213/acda27

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