2011MNRAS.413L..24M

Query : 2011MNRAS.413L..24M

2011MNRAS.413L..24M - Mon. Not. R. Astron. Soc., 413, L24-L28 (2011/May-1)

On minor black holes in galactic nuclei.

McKERNAN B., FORD K.E.S., YAQOOB T. and WINTER L.M.

Abstract (from CDS):

Small- and intermediate-mass black holes should be expected in galactic nuclei as a result of stellar evolution, minor mergers and gravitational dynamical friction. If these minor black holes accrete as X-ray binaries or ultraluminous X-ray sources (ULXs) and are associated with star formation, they could account for observations of many low-luminosity active galactic nuclei (AGN) or low-ionization nuclear emission regions (LINERs). Accreting and inspiralling intermediate-mass black holes could provide a crucial electromagnetic counterpart to strong gravitational wave signatures, allowing tests of strong gravity. Here we discuss observational signatures of minor black holes in galactic nuclei, and we demonstrate that optical line ratios observed in LINERs or transition-type objects can be produced by an ionizing radiation field from ULXs. We conclude by discussing constraints from existing observations as well as candidates for future study.

Abstract Copyright: 2011 The Authors Monthly Notices of the Royal Astronomical Society2011 RAS

Journal keyword(s): accretion, accretion discs - techniques: high angular resolution - stars: formation - galaxies: active - galaxies: nuclei - X-rays: galaxies

Simbad objects: 12

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Number of rows : 12
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
2 M 81 Sy2 09 55 33.1726556496 +69 03 55.062505368   7.89 6.94     ~ 4725 3
3 M 82 AGN 09 55 52.430 +69 40 46.93 9.61 9.30 8.41     ~ 6156 6
4 NGC 3486 Sy2 11 00 23.946 +28 58 29.35 10.89 11.11 10.53 10.40   ~ 373 1
5 NAME Antennae IG 12 01 53.170 -18 52 37.92           ~ 1749 0
6 M 90 Sy2 12 36 49.8009839880 +13 09 46.523813040 10.56 10.26 9.54     ~ 953 1
7 M 63 LIN 13 15 49.2741893928 +42 01 45.728076108   9.34 8.59 8.35   ~ 1292 2
8 NAME Centaurus A BLL 13 25 27.61521044 -43 01 08.8050291   8.18 6.84 6.66   ~ 4774 3
9 M 83 SBG 13 37 00.91920 -29 51 56.7400 8.85 8.11 7.52 7.21   ~ 2778 2
10 M 101 GiP 14 03 12.583 +54 20 55.50   8.46 7.86 7.76   ~ 3138 2
11 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
12 NAME Sgr A* X 17 45 40.03599 -29 00 28.1699           ~ 4970 3

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