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| Query : 2006ApJ...651L..97D |
2006ApJ...651L..97D - Astrophys. J., 651, L97-L100 (2006/November-2)
The binary nucleus in VCC 128: a candidate supermassive black hole in a dwarf elliptical galaxy.
DEBATTISTA V.P., FERRERAS I., PASQUALI A., SETH A., DE RIJCKE S. and MORELLI L.
Abstract (from CDS):
Hubble Space Telescope (HST) Wide Field Planetary Camera 2 (WFPC2) images of the Virgo Cluster dwarf elliptical galaxy VCC 128 reveal an apparently double nucleus. The two components, which are separated by ∼32 pc in projection, have the same magnitude and color. We present a spectrum of this double nucleus and show that it is inconsistent with one or both components being emission-line background objects or foreground stars. The most likely interpretation is that, as suggested by Lauer et al. for the double nucleus in NGC 4486B, we are seeing a nuclear disk surrounding a supermassive black hole. This is only the second time an early-type dwarf (dE/dSph) galaxy has been suggested to host a supermassive black hole.
Abstract Copyright: ∼
Journal keyword(s): Galaxies: Dwarf - galaxies: individual (VCC 128) - Galaxies: Nuclei - Galaxies: Photometry - Galaxies: Stellar Content
Nomenclature: Fig.1: [DFP2006] VCC 128 PN (Nos P1-P2).
Simbad objects: 16
| Number of rows : 16 |
| 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 110 | GiG | 00 40 22.0572349992 | +41 41 07.507220136 | 8.92 | 8.07 | ~ | 1370 | 1 | |||
| 2 | M 31 | AGN | 00 42 44.330 | +41 16 07.50 | 4.86 | 4.36 | 3.44 | ~ | 13622 | 1 | ||
| 3 | NAME P2B Cluster | PoG | 00 42 44.34 | +41 16 08.5 | ~ | 42 | 0 | |||||
| 4 | [LFG93] P1 | PoG | 00 42 44.37 | +41 16 08.9 | ~ | 40 | 0 | |||||
| 5 | M 33 | GiG | 01 33 50.8965749232 | +30 39 36.630403128 | 6.17 | 6.27 | 5.72 | ~ | 6226 | 1 | ||
| 6 | LEDA 74806 | LSB | 03 38 18.80 | -35 31 49.4 | 17.3 | 17.18 | ~ | 37 | 1 | |||
| 7 | * gam UMa | Em* | 11 53 49.8473166 | +53 41 41.135025 | 2.440 | 2.450 | 2.440 | 2.44 | 2.47 | A0V | 417 | 0 |
| 8 | UGCA 275 | G | 12 14 59.677 | +09 33 54.51 | 18 | ~ | 28 | 1 | ||||
| 9 | [DFP2006] VCC 128 P1 | PoG | 12 14 59.710 | +09 33 55.57 | ~ | 1 | 1 | |||||
| 10 | [DFP2006] VCC 128 P2 | PoG | 12 14 59.730 | +09 33 55.82 | ~ | 1 | 1 | |||||
| 11 | LEDA 41027 | AG? | 12 28 30.4812945888 | +07 19 29.065774836 | 16.59 | 15.79 | ~ | 29 | 0 | |||
| 12 | NGC 4486B | GiG | 12 30 31.985 | +12 29 24.85 | 14.5 | ~ | 428 | 0 | ||||
| 13 | NAME Virgo Cluster | ClG | 12 30 47.8 | +12 23 07 | ~ | 7107 | 0 | |||||
| 14 | BD+18 2647 | HS* | 12 41 51.7899961800 | +17 31 19.750566756 | 10.261 | 11.70 | 11.63 | 11.969 | 12.159 | sdOpec | 185 | 1 |
| 15 | Feige 98 | HB* | 14 38 15.7540358232 | +27 29 32.910012348 | 11.7 | 11.7 | sdB9IIIHe1 | 41 | 0 | |||
| 16 | BD+26 2606 | SB* | 14 49 02.3593347728 | +25 42 09.192358874 | 9.92 | 10.16 | 9.73 | 9.27 | 8.95 | A5 | 383 | 0 |
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