Detection of a Compact Nuclear Radio Source in the Local Group Elliptical Galaxy M32

@article{Yang2015DetectionOA,
  title={Detection of a Compact Nuclear Radio Source in the Local Group Elliptical Galaxy M32},
  author={Yang Yang and Zhiyuan Li and Lor{\'a}nt O. Sjouwerman and Q. Daniel Wang and Qiusheng Gu and Ralph P. Kraft and Fenge Yuan},
  journal={arXiv: Astrophysics of Galaxies},
  year={2015}
}
The Local Group compact elliptical galaxy M32 hosts one of the nearest candidate super-massive black holes (SMBHs), which has a previously suggested X-ray counterpart. Based on sensitive observations taken with the {\it Karl G. Jansky} Very Large Array (VLA), we detect for the first time a compact radio source coincident with the nucleus of M32, which exhibits an integrated flux density of $\sim$$47.3\pm6.1$ $\mu$Jy at 6.6 GHz. We discuss several possibilities for the nature of this source… 

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References

SHOWING 1-10 OF 50 REFERENCES
Detection of the “Active” Nucleus of M32
M32 hosts a 2.5 × 106 M☉ central black hole, but signs of nuclear activity in this galaxy have long eluded detection. We report the first conclusive detection of the nucleus of M32 in X-rays, based
X-RAY AND RADIO VARIABILITY OF M31*, THE ANDROMEDA GALAXY NUCLEAR SUPERMASSIVE BLACK HOLE
We confirm our earlier tentative detection of M31* in X-rays and measure its light curve and spectrum. Observations in 2004-2005 find M31* rather quiescent in the X-ray and radio. However, X-ray
X-ray emission from the stellar population in M 32
Using Chandra observations, we study the X-ray emission of the stellar population in the compact dwarf elliptical galaxy M 32. The proximity of M 32 allows one to resolve all bright point sources
Radio Sources in Low-Luminosity Active Galactic Nuclei. I. VLA Detections of Compact, Flat-Spectrum Cores
We report a high-resolution (02), 15 GHz survey of a sample of 48 low-luminosity active galactic nuclei with the Very Large Array. Compact radio emission has been detected above a flux density of 1.1
Chandra X-Ray Spectroscopic Imaging of Sagittarius A* and the Central Parsec of the Galaxy
We report the results of the first-epoch observation with the ACIS-I instrument on the Chandra X-Ray Observatory of Sagittarius A* (Sgr A*), the compact radio source associated with the supermassive
A Transient Radio Source near the Center of the Milky Way Galaxy
TLDR
It is argued that the GCT was probably transient radio emission from synchrotron-radiating plasma associated with an x-ray binary system that maintained a steep radio spectrum during both its rising and decay phases.
GAS ACCRETION IN THE M32 NUCLEUS: PAST AND PRESENT
Using adaptive optics assisted Gemini/NIFS data, I study the present and past gas accretion in the central 3'' of the M32 nucleus. From changes in the spectral slope and CO line depths near the
AMUSE-VIRGO. II. DOWN-SIZING IN BLACK HOLE ACCRETION
We complete the census of nuclear X-ray activity in 100 early-type Virgo galaxies observed by the Chandra X-ray Telescope as part of the AMUSE-Virgo survey, down to a (3σ ) limiting luminosity of 3.7
THE MURMUR OF THE HIDDEN MONSTER: CHANDRA'S DECADAL VIEW OF THE SUPERMASSIVE BLACK HOLE IN M31
The Andromeda galaxy (M31) hosts a central supermassive black hole (SMBH), known as M31*, which is remarkable for its mass (~108 M ☉) and extreme radiative quiescence. Over the past decade, the
A Fundamental plane of black hole activity
We examine the disc-jet connection in stellar mass and supermassive black holes by investigating the properties of their compact emission in the X-ray and radio bands. We compile a sample of ∼100
...
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2
3
4
5
...