SDSS J110347.36+055047.5

SDSS J110347.36+055047.5
SDSS image of SDSS J110347.36+055047.5
Observation data (J2000.0 epoch)
ConstellationLeo
Right ascension11h 03m 47.35s[1]
Declination+05° 50′ 47.50″[1]
Redshift0.244480[1]
Heliocentric radial velocity73,655 ± 31 km/s[1]
Distance3,543.2 ± 248.0 Mly (1,086.35 ± 76.05 Mpc)[1]
Group or clusterWHL J110347.4+055048
magnitude (J)14.47[1]
magnitude (H)13.71[1]
Characteristics
TypeBrClG[1]
Size~678,000 ly (207.9 kpc) (estimated)[1]
Other designations
2MASX J11034735+0550471, ASK 232491.0, [LHC2018] J165.94736+05.84654, NVSS J110347+055048, [THW2016] J165.9472+05.8481, WHL J110347.4+055048 BCG, LEDA 3469909

SDSS J110347.36+055047.5 also known as [LHC2018] J165.94736+05.84654, is a radio galaxy located in the constellation of Leo. The redshift of the galaxy is estimated to be located at (z) 0.244.[1]

Description

SDSS J110347.36+055047.5 is an elliptical galaxy of Type E morphology,[2] residing as the brightest cluster galaxy of the WHL J110347.4+055048 galaxy cluster belonging as part of a supercluster with 25 confirmed galaxy member candidates. The R-band magnitude of the galaxy has been found to be 16.98 while its absolute magnitude is calculated to be -23.42.[3][4][5]

The central nucleus is found to be active and it has been categorized as a non-bend compact radio galaxy or a low-excitation radio galaxy (LERG) with its total flux density estimated as 6.60 mJy by NRAO VLA Sky Survey (NVSS).[5][6] The radio morphology is mainly elongated, depicted as a single elliptical profile component although radio contour imaging made by Faint Images of the Radio Sky at Twenty-Centimeters (FIRST) suggested the radio morphology is compact and described by a single point-like component. There is also a presence of a radio core with its total core flux density of 2.04 mJy while the total radio emission flux density is 4.70 mJy. The luminosity distance of the source is 1239.6 megaparsecs.[2] Radio imaging by NVSS also showed there is a single component with a total integrated radio flux density of 4.70 mJy. The G-band magnitude of the galaxy is 18.14 while the I-band magnitude is 16.52.[6]

A study found the total stellar mass of the galaxy is 11.33 M☉. The log radio luminosity is 23.91 W Hz-1 while the radio flux density at 1.4 GHz is 4.7 mJy. The rest-frame r0.1 magnitude is -22.685. Evidence found the galaxy is powered by its active galactic nucleus.[7]

References

  1. 1 2 3 4 5 6 7 8 9 10 "NED Search results for SDSS J110347.36+055047.5". NASA/IPAC Extragalactic Database. Retrieved 2026-08-03.
  2. 1 2 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.
  3. ↑ Sankhyayan, Shishir; Bagchi, Joydeep; Tempel, Elmo; More, Surhud; Einasto, Maret; Dabhade, Pratik; Raychaudhury, Somak; Athreya, Ramana; Heinämäki, Pekka (2023-11-01). "Identification of Superclusters and Their Properties in the Sloan Digital Sky Survey Using the WHL Cluster Catalog". The Astrophysical Journal. 958 (1): 62. arXiv:2309.06251. Bibcode:2023ApJ...958...62S. doi:10.3847/1538-4357/acfaeb. ISSN 0004-637X.
  4. ↑ 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.
  5. 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.
  6. 1 2 Ching, John H. Y.; Sadler, Elaine M.; Croom, Scott M.; Johnston, Helen M.; Pracy, Michael B.; Couch, Warrick J.; Hopkins, A. M.; Jurek, Russell J.; Pimbblet, K. A. (2016-09-21). "The Large Area Radio Galaxy Evolution Spectroscopic Survey (LARGESS): survey design, data catalogue and GAMA/WiggleZ spectroscopy". Monthly Notices of the Royal Astronomical Society. 464 (2): 1306–1332. arXiv:1609.05578. doi:10.1093/mnras/stw2396. ISSN 0035-8711.
  7. ↑ 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.