6C 1132+3209

6C 1132+3209
SDSS image of 6C 1132+3209
Observation data (J2000.0 epoch)
ConstellationUrsa Major
Right ascension11h 35m 26.73s[1]
Declination+31° 53′ 32.59″[1]
Redshift0.231003[1]
Heliocentric radial velocity69,253 ± 12 km/s[1]
Distance3,345.3 ± 234.2 Mly (1,025.67 ± 71.80 Mpc)[1]
Group or clusterGMBCG J173.86121+31.89240
magnitude (J)14.75[1]
magnitude (H)13.97[1]
Characteristics
TypeBrClG[1]
Size~755,800 ly (231.74 kpc) (estimated)[1]
Other designations
B2 1132+32, 2MASX J11352669+3153324, 7C 1132+3210, LEDA 1969788, [BOG2010] 1262111, GMBCG J173.86121+31.89240 BCG, OGC 0671, [LHC2018] J173.86121+31.89240, NVSS J113526+315333, RX J1135.3+3153, SDSS JJ113526.69+315332.6, TXS 1132+321[1]

6C 1132+3209 also known as J113526.69+315332.6 and OGC 671, is a radio galaxy in the constellation of Ursa Major. The redshift of the galaxy is estimated to be (z) 0.231[1] and it was first discovered from a sample of 3,235 astronomical radio sources by astronomers using the Bologna Northern Cross telescope in March 1970 where it is designated as B2 1132+32.[2]

Description

6C 1132+3209 is classified as a supergiant elliptical galaxy of Type E morphology, with its r-band magnitude estimated to be 16.75 magnitude.[3] It is also a red luminous galaxy[4] residing as the brightest cluster galaxy (BCG) of the galaxy cluster, GMBCG J173.86121+31.89240, also designated as MACS J1135.4+3153.[5][6] The stellar mass of the galaxy has been calculated to be 11.36 M☉.[7]

The nucleus is active and has been classified as a Fanaroff-Riley Class Type I radio galaxy. The total flux density calculated by the NRAO VLA Sky Survey (NVSS) at 1.4 GHz frequencies has been estimated as 64.00 mJy.[8] The total radio luminosity of the source is 24.99 W Hz-1.[7] The radio structure is compact with an elongated morphology and mainly described as having a single elliptical profile component. A radio core has been detected by the Faint Images of the Radio Sky at Twenty-Centimeters (FIRST) survey and it has a flux density of 61.08 mJy. The radio emission has a total flux density of 63.80 mJy.[9]

The source has a steep radio spectrum. The flux density calculated by the Sixth Cambridge Survey of Radio Sources survey at 151 MHz frequencies is 0.63 ± 0.04 mJy.[10] The total k-band magnitude of the galaxy is 14.50 within an angular aperture of three arcseconds. The rest-frame radio luminosity at 151 MHz is 24.84 W Hz-1 sr-1.[11] The source is also categorized as having an ultra steep spectrum, while the radio spectral index between 352 MHz and 1.4 GHz is -1.05α. The absolute magnitude of the galaxy has been calculated as -22.67.[6]

References

  1. 1 2 3 4 5 6 7 8 9 10 11 "NED Search results for 6C 1132+3209". NASA/IPAC Extragalactic Database. Retrieved 2026-06-10.
  2. ↑ Colla, G.; Fanti, C.; Ficarra, A.; Formiggini, L. (March 1970). "A catalogue of 3235 radio sources at 408 MHz". Astronomy & Astrophysics Supplement Series. 1 (3): 281. Bibcode:1970A&AS....1..281C.
  3. ↑ Ogle, Patrick M.; Lanz, Lauranne; Appleton, Philip N.; Helou, George; Mazzarella, Joseph (2019-07-15). "A Catalog of the Most Optically Luminous Galaxies at z < 0.3: Super Spirals, Super Lenticulars, Super Post-mergers, and Giant Ellipticals". The Astrophysical Journal Supplement Series. 243 (1): 14. arXiv:1904.02806. Bibcode:2019ApJS..243...14O. doi:10.3847/1538-4365/ab21c3. ISSN 1538-4365.
  4. ↑ Lopes, P. A. A. (September 2007). "Empirical photometric redshifts of luminous red galaxies and clusters in the Sloan Digital Sky Survey". Monthly Notices of the Royal Astronomical Society. 380 (4): 1608–1620. arXiv:0706.1580. Bibcode:2007MNRAS.380.1608L. doi:10.1111/j.1365-2966.2007.12203.x. ISSN 0035-8711.
  5. ↑ Hao, Jiangang; McKay, Timothy A.; Koester, Benjamin P.; Rykoff, Eli S.; Rozo, Eduardo; Annis, James; Wechsler, Risa H.; Evrard, August; Siegel, Seth R.; Becker, Matthew; Busha, Michael; Gerdes, David; Johnston, David E.; Sheldon, Erin (2010-11-23). "A GMBCG Galaxy Cluster Catalog of 55,424 Rich Clusters from SDSS Dr7". The Astrophysical Journal Supplement Series. 191 (2): 254–274. arXiv:1010.5503. Bibcode:2010ApJS..191..254H. doi:10.1088/0067-0049/191/2/254. ISSN 0067-0049.
  6. 1 2 Bornancini, Carlos G.; O'Mill, Ana Laura; Gurovich, Sebastián; Lambas, Diego García (2010-04-30). "Radio galaxies in the Sloan Digital Sky Survey: spectral index-environment correlations". Monthly Notices of the Royal Astronomical Society. 406 (1): 197–207. arXiv:1003.4263. Bibcode:2010MNRAS.406..197B. doi:10.1111/j.1365-2966.2010.16685.x. ISSN 0035-8711.
  7. 1 2 Lin, Yen-Ting; Huang, Hung-Jin; Chen, Yen-Chi (2018-04-10). "An Analysis Framework for Understanding the Origin of Nuclear Activity in Low-power Radio Galaxies". The Astronomical Journal. 155 (5): 188. arXiv:1803.02482. Bibcode:2018AJ....155..188L. doi:10.3847/1538-3881/aab5b4. ISSN 0004-6256.
  8. ↑ Ma, Zhixian; Xu, Haiguang; Zhu, Jie; Hu, Dan; Li, Weitian; Shan, Chenxi; Zhu, Zhenghao; Gu, Liyi; Li, Jinjin; Liu, Chengze; Wu, Xiangping (2019-02-01). "A Machine Learning Based Morphological Classification of 14,245 Radio AGNs Selected from the Best–Heckman Sample". The Astrophysical Journal Supplement Series. 240 (2): 34. arXiv:1812.07190. Bibcode:2019ApJS..240...34M. doi:10.3847/1538-4365/aaf9a2. ISSN 0067-0049.
  9. ↑ Kozieł-Wierzbowska, Dorota; Goyal, Arti; Żywucka, Natalia (2020-03-23). "Radio Sources Associated with Optical Galaxies and Having Unresolved or Extended Morphologies (ROGUE). I. A Catalog of SDSS Galaxies with FIRST Core Identifications". The Astrophysical Journal Supplement Series. 247 (2): 53. arXiv:1912.09959. Bibcode:2020ApJS..247...53K. doi:10.3847/1538-4365/ab63d3. ISSN 0067-0049.
  10. ↑ Cruz, Maria J.; Jarvis, Matt J.; Blundell, Katherine M.; Rawlings, Steve; Croft, Steve; Klöckner, Hans-Rainer; McLure, Ross J.; Simpson, Chris; Targett, Thomas A.; Willott, Chris J. (2006-11-21). "The 6C** sample of steep-spectrum radio sources – I. Radio data, near-infrared imaging and optical spectroscopy". Monthly Notices of the Royal Astronomical Society. 373 (4): 1531–1562. arXiv:astro-ph/0609790. Bibcode:2006MNRAS.373.1531C. doi:10.1111/j.1365-2966.2006.11101.x. ISSN 1365-2966.
  11. ↑ Cruz, Maria J.; Jarvis, Matt J.; Rawlings, Steve; Blundell, Katherine M. (2007-02-05). "The 6C** sample of steep-spectrum radio sources - II. Redshift distribution and the space density of high-redshift radio galaxies". Monthly Notices of the Royal Astronomical Society. 375 (4): 1349–1363. arXiv:astro-ph/0612268. Bibcode:2007MNRAS.375.1349C. doi:10.1111/j.1365-2966.2007.11390.x. ISSN 0035-8711.
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