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- W2002254708 abstract "We report the discovery of three low-mass black hole (BH) candidates residing in the centers of low-mass galaxies at z < 0.3 in the Chandra Deep Field-South Survey. These BHs are initially identified as candidate active galactic nuclei based on their X-ray emission in deep Chandra observations. Multi-wavelength observations are used to strengthen our claim that such emission is powered by an accreting supermassive BH. While the X-ray luminosities are low at LX ∼ 1040 erg s−1 (and variable in one case), we argue that they are unlikely to be attributed to star formation based on Hα or UV fluxes. Optical spectroscopy from Keck and the VLT allows us to (1) measure accurate redshifts, (2) confirm their low stellar host mass, (3) investigate the source(s) of photo-ionization, and (4) estimate extinction. With stellar masses of M* < 3 × 109 M☉ determined from Hubble Space Telescope/Advanced Camera for Surveys imaging, the host galaxies are among the lowest mass systems known to host actively accreting BHs. We estimate BH masses MBH ∼ 2 × 105 M☉ based on scaling relations between BH mass and host properties for more luminous systems. In one case, a broad component of the Hα emission-line profile is detected, thus providing a virial mass estimate. BHs in such low-mass galaxies are of considerable interest as the low-redshift analogs to the seeds of the most massive BHs at high redshift which have remained largely elusive to date. Our study highlights the power of deep X-ray surveys to uncover such low-mass systems." @default.
- W2002254708 created "2016-06-24" @default.
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- W2002254708 date "2013-08-05" @default.
- W2002254708 modified "2023-10-03" @default.
- W2002254708 title "UNVEILING A POPULATION OF GALAXIES HARBORING LOW-MASS BLACK HOLES WITH X-RAYS" @default.
- W2002254708 cites W1796953235 @default.
- W2002254708 cites W1821429365 @default.
- W2002254708 cites W1894982094 @default.
- W2002254708 cites W1963797150 @default.
- W2002254708 cites W1980924370 @default.
- W2002254708 cites W1984837812 @default.
- W2002254708 cites W1985952407 @default.
- W2002254708 cites W1986110531 @default.
- W2002254708 cites W1988249910 @default.
- W2002254708 cites W1993785188 @default.
- W2002254708 cites W1994671833 @default.
- W2002254708 cites W1994702306 @default.
- W2002254708 cites W2000011990 @default.
- W2002254708 cites W2007149272 @default.
- W2002254708 cites W2008777327 @default.
- W2002254708 cites W2011808633 @default.
- W2002254708 cites W2025624364 @default.
- W2002254708 cites W2025803926 @default.
- W2002254708 cites W2026398372 @default.
- W2002254708 cites W2031723844 @default.
- W2002254708 cites W2033831487 @default.
- W2002254708 cites W2033977779 @default.
- W2002254708 cites W2037604001 @default.
- W2002254708 cites W2040797104 @default.
- W2002254708 cites W2051215382 @default.
- W2002254708 cites W2057181130 @default.
- W2002254708 cites W2057824436 @default.
- W2002254708 cites W2066202006 @default.
- W2002254708 cites W2067857092 @default.
- W2002254708 cites W2068712144 @default.
- W2002254708 cites W2071457590 @default.
- W2002254708 cites W2071947377 @default.
- W2002254708 cites W2074743153 @default.
- W2002254708 cites W2076860642 @default.
- W2002254708 cites W2077938065 @default.
- W2002254708 cites W2082217056 @default.
- W2002254708 cites W2083481765 @default.
- W2002254708 cites W2086429759 @default.
- W2002254708 cites W2089884037 @default.
- W2002254708 cites W2090236411 @default.
- W2002254708 cites W2099455681 @default.
- W2002254708 cites W2107337450 @default.
- W2002254708 cites W2121176513 @default.
- W2002254708 cites W2124999166 @default.
- W2002254708 cites W2133678282 @default.
- W2002254708 cites W2138487987 @default.
- W2002254708 cites W2144320326 @default.
- W2002254708 cites W2151062050 @default.
- W2002254708 cites W2151796687 @default.
- W2002254708 cites W2156831326 @default.
- W2002254708 cites W2160672251 @default.
- W2002254708 cites W2163212281 @default.
- W2002254708 cites W2164591348 @default.
- W2002254708 cites W2165166025 @default.
- W2002254708 cites W2165265292 @default.
- W2002254708 cites W2168482215 @default.
- W2002254708 cites W3045411735 @default.
- W2002254708 cites W3098038125 @default.
- W2002254708 cites W3099474433 @default.
- W2002254708 cites W3099495917 @default.
- W2002254708 cites W3099755326 @default.
- W2002254708 cites W3099870928 @default.
- W2002254708 cites W3100819262 @default.
- W2002254708 cites W3100922108 @default.
- W2002254708 cites W3101142863 @default.
- W2002254708 cites W3101569333 @default.
- W2002254708 cites W3101759113 @default.
- W2002254708 cites W3101792303 @default.
- W2002254708 cites W3101826868 @default.
- W2002254708 cites W3102030540 @default.
- W2002254708 cites W3102937302 @default.
- W2002254708 cites W3103357764 @default.
- W2002254708 cites W3104121307 @default.
- W2002254708 cites W3104372374 @default.
- W2002254708 cites W3104424156 @default.
- W2002254708 cites W3104436973 @default.
- W2002254708 cites W3104688871 @default.
- W2002254708 cites W3105502054 @default.
- W2002254708 cites W3105515384 @default.
- W2002254708 cites W3106053650 @default.
- W2002254708 cites W3121994321 @default.
- W2002254708 cites W4211245634 @default.
- W2002254708 cites W4235475162 @default.