Astronomy:WISEA J110524.16+594341.2

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WISEA J110524.16+594341.2
SDSS image of WISEA J110524.16+594341.2
Observation data (J2000.0 epoch)
ConstellationUrsa Major
Right ascension 11h 05m 24.16s[1]
Declination+59° 43′ 41.29″[1]
Redshift0.359445[1]
Helio radial velocity107,759 ± 27 km/s[1]
Distance5,190.9 ± 363.4 Mly (1,591.53 ± 111.41 Mpc)[1]
Group or clusterWHL J110524.2+594342
Characteristics
TypeFR II
Size~644,000 ly (197.5 kpc) (estimated)[1]
Other designations
2MASX J11052411+5943395, 6C B110221.8+595927, 7C 1102+5959, GB6 J1105+5943, [SBP2022] J1105+5943, SDSS J110524.25+594342.0, NVSS J110523+594338, WHL J110524.3+594341 BCG,[1] LEDA 3408956

WISEA J110524.16+594341.2 also known as J1105+5943 and J110524.25+594342.0, is a radio galaxy located in the constellation of Ursa Major. The redshift of the galaxy is (z) 0.35[1] and it was first discovered from the Sixth Cambridge Survey of Radio Sources by astronomers in September 1990.[2]

Description

WISEA J110524.16+594341.2 is a red luminous galaxy residing in the WHL J110524.2+594342 galaxy cluster, with a total angular separation between it and the cluster center estimated to be just one arcsecond and a linear distance of 5.0 kiloparsecs.[3][4]

The nucleus is active and has been categorized as a Fanaroff-Riley Class Type II radio galaxy with a total radio luminosity of 5.60 × 1043 erg s-1 and contains a compact radio source.[5][6] The total flux density calculated by the NRAO VLA Sky Survey (NVSS) is 81.00 mJy at 1.4 GHz frequencies. The absolute magnitude of the galaxy is -22.92 magnitude.[6]

A study found it is a wide angle-tail (WAT) radio galaxy. The radio spectra index between 3 GHz and 1.4 GHz is 0.7α and the total flux density is 51.95 mJy at 3 GHz frequencies. The 1.4 GHz logarithmic luminosity is 25.58 W Hz-1. A radio jet is present, with the jet opening angle estimated to be 122.5° and a jet curvature radius of 17.5 arcseconds in total. The largest angular size is 37 arcseconds, while the largest linear size is 192.0 kiloparsecs.[4] The flux density at 1400 MHz is 89 mJy and the flux density at 150 MHz is 504 mJy.[5]

References

  1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 "NED Search results for WISEA J110524.16+594341.2". https://ned.ipac.caltech.edu/byname?objname=2MASX+J11052411+5943395&hconst=67.8&omegam=0.308&omegav=0.692&wmap=4&corr_z=1. 
  2. ↑ Hales, S. E. G.; Masson, C. R.; Warner, P. J.; Baldwin, J. E. (September 1990). "The 6C survey of radio sources - III. The zone 48<Dec<68, 05h25<RA<18h17". Monthly Notices of the Royal Astronomical Society 246: 256–262. Bibcode: 1990MNRAS.246..256H. https://ui.adsabs.harvard.edu/scan/manifest/1990MNRAS.246..256H?art=true. 
  3. ↑ 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. doi:10.1111/j.1365-2966.2007.12203.x. ISSN 0035-8711. Bibcode: 2007MNRAS.380.1608L. 
  4. ↑ 4.0 4.1 Lao, Baoqiang; Andernach, Heinz; Yang, Xiaolong; Zhang, Xiang; Zhao, Rushuang; Zhao, Zhen; Yu, Yun; Sun, Xiaohui et al. (2025-01-16). "Identification of 4876 Bent-tail Radio Galaxies in the FIRST Survey Using Deep Learning Combined with Visual Inspection". The Astrophysical Journal Supplement Series 276 (2): 46. doi:10.3847/1538-4365/ad9c6d. ISSN 0067-0049. Bibcode: 2025ApJS..276...46L. 
  5. ↑ 5.0 5.1 Sasmal, Tapan K.; Bera, Soumen; Pal, Sabyasachi; Mondal, Soumen (2022-03-14). "A New Catalog of Head–Tail Radio Galaxies from the VLA FIRST Survey". The Astrophysical Journal Supplement Series 259 (2): 31. doi:10.3847/1538-4365/ac4473. ISSN 0067-0049. Bibcode: 2022ApJS..259...31S. 
  6. ↑ 6.0 6.1 Ma, Zhixian; Xu, Haiguang; Zhu, Jie; Hu, Dan; Li, Weitian; Shan, Chenxi; Zhu, Zhenghao; Gu, Liyi et al. (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. doi:10.3847/1538-4365/aaf9a2. ISSN 0067-0049. Bibcode: 2019ApJS..240...34M. 



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