B2 1113+24

B2 1113+24
SDSS image of B2 1113+24
Observation data (J2000.0 epoch)
ConstellationLeo
Right ascension11h 16m 03.80s}[1]
Declination+24° 41′ 02.18″}[1]
Redshift0.102228[1]
Heliocentric radial velocity30,647 ± 6 km/s[1]
Distance1,491.1 ± 104.4 Mly (457.16 ± 32.00 Mpc)[1]
Group or clusterZw 1113.0+2452
magnitude (J)12.96[1]
Characteristics
TypeE AGN:[1]
Size~500,000 ly (153.2 kpc) (estimated)[1]
Other designations
2MASX J11160377+2441018, 7C 1113+2457, PGC 34365, NVSS J111603+244104, OGC 0533, WHL J111603.8+244102 BCG[1]

B2 1113+24 is a radio galaxy located in the constellation of Leo. The redshift of the galaxy is (z) 0.102[1] and it was first discovered as an astronomical radio source in September 1972 by astronomers.[2]

Description

B2 1113+24 is a radio galaxy of low luminosity. The host is an elliptical galaxy with a rounded appearance and is the brightest cluster galaxy (BCG) of the galaxy cluster, Zw 1113.0+2452.[3][4] A faint companion is three arcseconds away to the north.[4] A study found no presence of dust features in the galaxy.[5] The total r-band luminosity is magnitude 9.7 based on the r-band luminosity value calculated by the Sloan Digital Sky Survey (SDSS).[6]

Radio imaging made with the Very Large Array (VLA) shows the source has a small angular size. It has a halo structure that is mainly complex as well as a steep radio spectrum.[7] A-array observations at 20 centimeters detected two components located in both north and south directions with flux densities of 10 and 14 mJy respectively.[8] A radio core has been detected with a flux density less than 0.3 mJy.[9] There is no detection of a radio jet.[3]

The core fundamental plane of the galaxy has a rotation speed of 180 kilometers per second within five arcseconds of the core region.[10] The supermassive black hole in the center of the galaxy has a mass of 9.25 M☉, while the estimated age of the galaxy is 10.0 × 109 years.[11]

References

  1. 1 2 3 4 5 6 7 8 9 10 "NED Search results for B2 1113+24". NASA/IPAC Extragalactic Database. Retrieved 2026-05-29.
  2. ↑ Colla, G.; Fanti, C.; Fanti, R. (September 1972). "The B2 Catalogue of radio sources - second part". Astronomy and Astrophysics Supplement. 7: 1. Bibcode:1972A&AS....7....1C.
  3. 1 2 González-Serrano, J. I.; Carballo, R. (October 2000). "Surface photometry of radio loud elliptical galaxies from the B2 sample" (PDF). Astronomy and Astrophysics Supplement Series. 142 (3): 353–368. Bibcode:2000A&AS..142..353G. doi:10.1051/aas:2000154. ISSN 0365-0138.
  4. 1 2 Capetti, A.; de Ruiter, H. R.; Fanti, R.; Morganti, R. (October 2000). "The HST snapshot survey of the B2 sample of low luminosity radio-galaxies: a picture gallery". Astronomy and Astrophysics. 362: 871–885. arXiv:astro-ph/0009056. Bibcode:2000A&A...362..871C.
  5. ↑ Ruiter, H. R. de; Parma, P.; Capetti, A.; Fanti, R.; Morganti, R. (2002-12-01). "HST images of B2 radio galaxies: A link between circum-nuclear dust and radio properties?" (PDF). Astronomy & Astrophysics. 396 (3): 857–866. arXiv:astro-ph/0210503. Bibcode:2002A&A...396..857D. doi:10.1051/0004-6361:20021462. ISSN 0004-6361.
  6. ↑ 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.
  7. ↑ 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". Astronomy and Astrophysics, Suppl. Ser. 64: 135–171. Bibcode:1986A&AS...64..135P.
  8. ↑ Fanti, C.; Fanti, R.; de Ruiter, H. R. (July 1986). "VLA observations of low luminosity radio galaxies. III. The A-array observations". Astronomy and Astrophysics, Suppl. Ser. 65: 145–188. Bibcode:1986A&AS...65..145F.
  9. ↑ Giovannini, G.; Feretti, L.; Gregorini, L.; Parma, P. (June 1988). "Radio nuclei in elliptical galaxies". Astronomy and Astrophysics. 199: 73–84. Bibcode:1988A&A...199...73G.
  10. ↑ Bettoni, D.; Falomo, R.; Parma, P.; Ruiter, H. de; Fanti, R. (2009-12-01). "The core fundamental plane of B2 radio galaxies" (PDF). Astronomy & Astrophysics. 508 (3): 1253–1258. arXiv:0910.0716. Bibcode:2009A&A...508.1253B. doi:10.1051/0004-6361/200913055. ISSN 0004-6361.
  11. ↑ Ruiter, H. R. de; Parma, P.; Fanti, R.; Fanti, C. (2015-09-01). "Far-UV to mid-IR properties of nearby radio galaxies" (PDF). Astronomy & Astrophysics. 581: A33. arXiv:1508.03287. Bibcode:2015A&A...581A..33D. doi:10.1051/0004-6361/201424079. ISSN 0004-6361.
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