SDSS J092255.18+541828.2

SDSS J092255.18+541828.2
The radio galaxy SDSS J092255.18+541828.2
Observation data (J2000.0 epoch)
ConstellationUrsa Major
Right ascension09h 22m 55.25s[1]
Declination+54° 18′ 28.06″[1]
Redshift0.337095[1]
Heliocentric radial velocity101,058 ± 22 km/s[1]
Distance4,868.9 ± 340.8 Mly (1,492.81 ± 104.50 Mpc)[1]
Group or clusterWHL J092255.2+541829
magnitude (K)14.63[1]
Characteristics
TypeFR II
Size~710,000 ly (217.6 kpc) (estimated)[1]
Other designations
2MASX J09225523+5418285, LEDA 2465719, [VFK2015] J140.73028+54.30805, [YHW2016] J140.72986+54.30793, WHL J092255.2+541829 BCG[1]

SDSS J092255.18+541828.2 also known as J092255+541828 and [VFK2015] J140.73028+54.30805, is a radio galaxy located in the constellation of Ursa Major. The redshift of the galaxy is (z) 0.337.[1]

Description

SDSS J092255.18+541828.2 is a red luminous galaxy residing as the brightest cluster galaxy of the WHL J092255.2+541829 galaxy cluster with eight confirmed galaxy member candidates. The R-band magnitude of the galaxy is estimated to be 18.23 magnitude.[2][3] The absolute magnitude of the galaxy is -22.98.[4]

The nucleus is found to be active and it has been classified as a non-bend tail Fanaroff-Riley Type II radio galaxy with its total flux density of 41.00 mJy estimated by NRAO VLA Sky Survey (NVSS) at 1.4 GHz frequencies.[4] The total radio luminosity is found to be 25.66 W Hz-1 with the total angular size of the source being 53 arcseconds while the total linear size of the source is 255.39 kiloparsecs. There is no detection of either a radio core or hotspot features.[5] Evidence suggested the source has a size of 48.94 arcseconds while the radio luminosity is 25.15 W Hz-1.[6]

A study finds both of the radio lobes are resolved with the lobe flux density of 0.0418 mJy and have a projected separation of 0.0135°. A radio core is also detected in additional, with the core's flux density estimated to be 0.0094 mJy. There are two Gaussian components present.[7] The total radio power has been estimated as 17.10 × 1024 WHz-1.[8]

References

  1. 1 2 3 4 5 6 7 8 9 "NED Search results for SDSS J092255.18+541828.2". NASA/IPAC Extragalactic Database. Retrieved 2026-06-27.
  2. ↑ 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.
  3. ↑ Wen, Z. L.; Han, J. L.; Liu, F. S. (2012-03-30). "A Catalog of 132,684 Clusters of Galaxies Identified from Sloan Digital Sky Survey III". The Astrophysical Journal Supplement Series. 199 (2): 34. arXiv:1202.6424. Bibcode:2012ApJS..199...34W. doi:10.1088/0067-0049/199/2/34. ISSN 0067-0049.
  4. 1 2 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.
  5. ↑ Kozieł-Wierzbowska, Dorota; Stasińska, Grażyna (2011-08-01). "FRII radio galaxies in the SDSS: Observational facts". Monthly Notices of the Royal Astronomical Society. 415 (2): 1013–1026. arXiv:1101.3223. doi:10.1111/j.1365-2966.2011.18346.x.
  6. ↑ Miraghaei, H.; Best, P. N. (2017-01-05). "The nuclear properties and extended morphologies of powerful radio galaxies: the roles of host galaxy and environment". Monthly Notices of the Royal Astronomical Society stx007. arXiv:1701.00919. doi:10.1093/mnras/stx007. ISSN 0035-8711.
  7. ↑ van Velzen, Sjoert; Falcke, Heino; Körding, Elmar (2014-12-02). "Nature and evolution of powerful radio galaxies at z ∼ 1 and their link with the quasar luminosity function". Monthly Notices of the Royal Astronomical Society. 446 (3): 2985–3001. arXiv:1411.2968. doi:10.1093/mnras/stu2213. ISSN 1365-2966.
  8. ↑ Yuan, Z. S.; Han, J. L.; Wen, Z. L. (2016-05-12). "Radio luminosity function of brightest cluster galaxies". Monthly Notices of the Royal Astronomical Society. 460 (4): 3669–3678. arXiv:1605.03387. doi:10.1093/mnras/stw1125. ISSN 0035-8711.
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