Abell 1758N BCG
Brightest cluster galaxy of the northern cluster of Abell 1758 in Canes Venatici
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Abell 1758N BCG (short for Abell 1758 Northern Brightest Cluster Galaxy) is a massive elliptical galaxy located in the constellation of Canes Venatici. The redshift of the galaxy is (z) 0.278[1] and it is the brightest cluster galaxy of the northern subcluster region of the galaxy cluster Abell 1758, which in turn also resides in the northwestern region.[2]
| Abell 1758N BCG | |
|---|---|
SDSS image of Abell 1758N BCG | |
| Observation data (J2000.0 epoch) | |
| Constellation | Canes Venatici |
| Right ascension | 13h 32m 38.41s[1] |
| Declination | +50° 33′ 35.45″[1] |
| Redshift | 0.278577[1] |
| Heliocentric radial velocity | 83,515 ± 14 km/s[1] |
| Distance | 4,022.3 ± 281.6 Mly (1,233.23 ± 86.33 Mpc)[1] |
| Group or cluster | Abell 1758 (Northern Cluster) |
| magnitude (J) | 14.70[1] |
| Characteristics | |
| Type | BrClG[1] |
| Size | ~731,000 ly (224.1 kpc) (estimated)[1] |
| Other designations | |
| 2MASX J13323845+5033351, Abell 1758b:[BHB2008] BCG, Abell 1758:[HSH2009] BCG, ILT J133238.4+503335.5, ABELL 1758N:[REE2012] BCG, ABELL 1758NW:[MCM2017] BCG, WHL J133238.4+503335 BCG, SDSS J133238.41+503335.9[1] LEDA 3809655 | |
Description
Abell 1758N BCG is classified as a radio galaxy, with a radio source having a total estimated radio power of 14.6 ± 0.4 × 1023 W Hz−1 and has a radio flux density of 6.03 ± 0.15 mJy at 1.4 GHz.[3] There is also radio emission in the form of a radio halo.[4]
The total magnitude of the BCG calculated by the Sloan Digital Sky Survey (SDSS) is 17.15, while the heliocentric radial velocity is 83,489 kilometers per second.[2] The optical spectrum of the BCG does not show emission lines.[5]
The total star formation at 24 micrometers is 0.93 M☉ per year, while the stellar mass of the BCG is 0.486 × 1012 M☉.[6][7] The core of the BCG has a red color appearance based on the inner shape color profile, with the BCG itself having a best fit surface brightness profile parameter of 51.53+0.33−0.42 kiloparsecs.[8]
The BCG is also an X-ray source with a rest-frame X-ray luminosity of 1.3 ± 0.4 erg s−1.[3] The X-ray peak of the northwestern subclump coincides with the position of the BCG.[2]