Astronomy:NGC 6137
| NGC 6137 | |
|---|---|
 The galaxy NGC 6137. Above right of the image is PGC 57964. | |
| Observation data (J2000 epoch) | |
| Constellation | Corona Borealis |
| Right ascension | 16h 23m 03.12s[1] |
| Declination | +37° 55′ 20.49″[1] |
| Redshift | 0.031031[1] |
| Helio radial velocity | 9303 km/s[1] |
| Distance | 449 Mly (137.71 ± 9.64 Mpc[1] |
| Apparent magnitude (V) | 13.1[2] |
| Characteristics | |
| Type | E[1] |
| Size | ~198,800 ly (60.96 kpc) (estimated)[1] |
| Other designations | |
| UGC 10364, HOLM 744A, PGC 57966, MCG +06-36-039, RX J1622.9+3755, CGCG 196-053, NVSS J162304+375524[1] | |
NGC 6137 is an elliptical galaxy located in the constellation of Corona Borealis. The Hubble distance of the galaxy is 137.7 ± 9.6 megaparsecs or 449 million light-years,[1] and it was first discovered by the German-British astronomer by the name of William Herschel in 1787 but also observed by John Herschel in 1826.[3] It is also a member of Abell 2199.[4]
Description
NGC 6137 is classified as a head-tail radio galaxy.[5] When observed with radio imaging, it has a radio core described as powerful (1023 Hz−1) at 5 GHz frequencies. There is also a tail extension present that elongates in an eastern direction from the galaxy corresponding to a distance of 16 kiloparsecs.[6] Observation made with the Very Large Array (VLA) found the tail is diffused, with its direction perpendicular to a small jet.[7]
Further radio imaging by the VLA has found there are two radio jets present in the galaxy on opposite sides. These, in turn, have symmetrical appearances with an extent of 10 arcseconds and are embedded inside its optical and X-ray structure. In addition, the jets have a bending angle towards the east direction. Other observations made with Very Long Baseline Interferometry (VLBI) showed the jet is one-sided instead, with a slightly misaligned jet on parsec-scales, although it has the same orientation like the jet on kiloparsec scales at 160°.[8] Traces of X-ray emission are also present, likely originating from the source of hot coronae.[9]
The supermassive black hole lying in the center of the galaxy is estimated to be around 6.46 x 108 Mʘ.[10]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 "NED Search results for NGC 6137". https://ned.ipac.caltech.edu/byname?objname=NGC+6137&hconst=67.8&omegam=0.308&omegav=0.692&wmap=4&corr_z=1.
- ↑ "Revised NGC Data for NGC 6137". http://spider.seds.org/ngc/revngcic.cgi?NGC6137.
- ↑ "New General Catalog Objects: NGC 6100 - 6149". https://cseligman.com/text/atlas/ngc61.htm#6137.
- ↑ de Vaucouleurs, G.; de Vaucouleurs, A.; Corwin, J. R. (1976). "Second reference catalogue of bright galaxies" (in en). Second Reference Catalogue of Bright Galaxies 1976: 0. Bibcode: 1976RC2...C......0D. https://ui.adsabs.harvard.edu/abs/1976RC2...C......0D/abstract.
- ↑ Roettgering, A. C.; Edge, H. (August 1995). "X-ray properties of head-tail radio sources in clusters of galaxies". pp. astro–ph/9508077. arXiv:astro-ph/9508077.
- ↑ Ekers, R. D. (October 1978). "Two Head-tail Radio Sources in Poor Clusters" (in en). Astronomy and Astrophysics 69: 253. ISSN 0004-6361. Bibcode: 1978A&A....69..253E. https://articles.adsabs.harvard.edu//full/1978A%26A....69..253E/0000253.000.html.
- ↑ Parma, P.; de Ruiter, H. R.; Fanti, C.; Fanti, R. (April 1986). "VLA observations of low luminosity radio galaxies. I. Sources with angular size smaller than two arcminutes." (in en). Astronomy and Astrophysics Supplement Series 64: 135–171. ISSN 0365-0138. https://articles.adsabs.harvard.edu/pdf/1986A%26AS...64..135P.
- ↑ Giovannini, G.; Taylor, G. B.; Feretti, L.; Cotton, W. D.; Lara, L.; Venturi, T. (January 2005). "The Bologna Complete Sample of Nearby Radio Sources" (in en). The Astrophysical Journal 618 (2): 635–648. doi:10.1086/426106. ISSN 0004-637X. Bibcode: 2005ApJ...618..635G.
- ↑ Feretti, L.; Fanti, R.; Parma, P.; Massaglia, S.; Trussoni, E.; Brinkmann, W. (June 1995). "ROSAT observations of the B2 radio galaxies 1615+35 and 1621+38: implications for the radio source confinement." (in en). Astronomy and Astrophysics 298: 699. ISSN 0004-6361. Bibcode: 1995A&A...298..699F.
- ↑ Woo, Jong-Hak; Urry, C. Megan (2002-07-11), "Active Galactic Nucleus Black Hole Masses and Bolometric Luminosities", The Astrophysical Journal 579 (2): 530–544, doi:10.1086/342878, Bibcode: 2002ApJ...579..530W
External links
- NGC 6137 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
 |  |
