Accretion disks around massive black holes - Persistent emission spectra
Detailed model calculations of steady X-ray emission from accretion disks around massive black holes are presented. The general emission features characterizing different disk models are summarized for a wide region in (M, M) parameter space. Continuous radiation spectra are plotted for the disk mod...
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| Veröffentlicht in: | Astrophys. J.; (United States) 1978-08, Vol.224, p.53 |
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| container_title | Astrophys. J.; (United States) |
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| creator | Eardley, D. M. Payne, D. G. Lightman, A. P. Shapiro, S. L. |
| description | Detailed model calculations of steady X-ray emission from accretion disks around massive black holes are presented. The general emission features characterizing different disk models are summarized for a wide region in (M, M) parameter space. Continuous radiation spectra are plotted for the disk models for black holes of mass M/M/sub sun/=10/sup 2/--10/sup 3/ accreting gas at a rate M/(10/sup 17/ g s/sup -1/) =1--10/sup 4/. The results may be relevant to X-ray generation in globular clusters and (or) in active galactic nuclei and quasars. In particular, observations of galactic X-ray source spectra indicate that, for many sources, the ''standard'' disk and ''two-temperature'' disk models for accretion onto a massive black hole do not apply, while the optically thin bremsstrahlung model is consistent with the data. |
| doi_str_mv | 10.1086/156349 |
| format | Article |
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J.; (United States)</title><description>Detailed model calculations of steady X-ray emission from accretion disks around massive black holes are presented. The general emission features characterizing different disk models are summarized for a wide region in (M, M) parameter space. Continuous radiation spectra are plotted for the disk models for black holes of mass M/M/sub sun/=10/sup 2/--10/sup 3/ accreting gas at a rate M/(10/sup 17/ g s/sup -1/) =1--10/sup 4/. The results may be relevant to X-ray generation in globular clusters and (or) in active galactic nuclei and quasars. In particular, observations of galactic X-ray source spectra indicate that, for many sources, the ''standard'' disk and ''two-temperature'' disk models for accretion onto a massive black hole do not apply, while the optically thin bremsstrahlung model is consistent with the data.</description><subject>BLACK HOLES</subject><subject>BREMSSTRAHLUNG</subject><subject>CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS</subject><subject>COSMIC RAY SOURCES</subject><subject>COSMIC X-RAY SOURCES</subject><subject>ELECTROMAGNETIC RADIATION</subject><subject>IONIZING RADIATIONS</subject><subject>MATHEMATICAL MODELS</subject><subject>RADIATIONS</subject><subject>SPECTRA</subject><subject>STAR ACCRETION</subject><subject>STAR CLUSTERS</subject><subject>STAR EVOLUTION 640102 -- Astrophysics & Cosmology-- Stars & Quasi-Stellar, Radio & X-Ray Sources</subject><subject>STAR MODELS</subject><subject>X RADIATION</subject><subject>X-RAY SPECTRA</subject><issn>0004-637X</issn><issn>1538-4357</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1978</creationdate><recordtype>article</recordtype><recordid>eNotkE9LAzEUxIMoWKt-huDB22qyyebPsRRthYIeFLwt6ctbGtvulrwo-O3dUk_DwG-GYRi7leJBCmceZWOU9mdsIhvlKq0ae84mQghdGWU_L9kV0dfR1t5P2HIGkLGkoecx0ZZ4yMN3H_k-EKUf5OtdgC3fDDskXvE3zJSoYF847tNIjDE6IJQcrtlFF3aEN_86ZR_PT-_zZbV6XbzMZ6sKalmXSnYSvIuyBo3Rem9R26BitNLaWoIytQaPxqHwa6tcROO9cq6JFkIHdaOm7O7UO1BJLUEqCBsY-n5c0RpnvXZ6hO5PEOSBKGPXHnLah_zbStEeT2pPJ6k_jIxYbw</recordid><startdate>19780815</startdate><enddate>19780815</enddate><creator>Eardley, D. 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M.</creatorcontrib><creatorcontrib>Payne, D. G.</creatorcontrib><creatorcontrib>Lightman, A. P.</creatorcontrib><creatorcontrib>Shapiro, S. L.</creatorcontrib><creatorcontrib>Department of Physics, Yale University, New Haven, CT 06520</creatorcontrib><collection>CrossRef</collection><collection>OSTI.GOV</collection><jtitle>Astrophys. J.; (United States)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Eardley, D. M.</au><au>Payne, D. G.</au><au>Lightman, A. P.</au><au>Shapiro, S. L.</au><aucorp>Department of Physics, Yale University, New Haven, CT 06520</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Accretion disks around massive black holes - Persistent emission spectra</atitle><jtitle>Astrophys. J.; (United States)</jtitle><date>1978-08-15</date><risdate>1978</risdate><volume>224</volume><spage>53</spage><pages>53-</pages><issn>0004-637X</issn><eissn>1538-4357</eissn><abstract>Detailed model calculations of steady X-ray emission from accretion disks around massive black holes are presented. The general emission features characterizing different disk models are summarized for a wide region in (M, M) parameter space. Continuous radiation spectra are plotted for the disk models for black holes of mass M/M/sub sun/=10/sup 2/--10/sup 3/ accreting gas at a rate M/(10/sup 17/ g s/sup -1/) =1--10/sup 4/. The results may be relevant to X-ray generation in globular clusters and (or) in active galactic nuclei and quasars. In particular, observations of galactic X-ray source spectra indicate that, for many sources, the ''standard'' disk and ''two-temperature'' disk models for accretion onto a massive black hole do not apply, while the optically thin bremsstrahlung model is consistent with the data.</abstract><cop>United States</cop><doi>10.1086/156349</doi><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0004-637X |
| ispartof | Astrophys. J.; (United States), 1978-08, Vol.224, p.53 |
| issn | 0004-637X 1538-4357 |
| language | eng |
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| source | Alma/SFX Local Collection |
| subjects | BLACK HOLES BREMSSTRAHLUNG CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS COSMIC RAY SOURCES COSMIC X-RAY SOURCES ELECTROMAGNETIC RADIATION IONIZING RADIATIONS MATHEMATICAL MODELS RADIATIONS SPECTRA STAR ACCRETION STAR CLUSTERS STAR EVOLUTION 640102 -- Astrophysics & Cosmology-- Stars & Quasi-Stellar, Radio & X-Ray Sources STAR MODELS X RADIATION X-RAY SPECTRA |
| title | Accretion disks around massive black holes - Persistent emission spectra |
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