Astronomy:UGC 2450

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UGC 2450
Pan-STARRS image of the cD galaxy UGC 2450
Observation data (J2000 epoch)
ConstellationAries
Right ascension 02h 58m 57.89s[1]
Declination+13° 34′ 59.37″[1]
Redshift0.071419[1]
Helio radial velocity21411 ± 16 km/s[1]
Distance1,031.8 ± 72.2 Mly (316.36 ± 22.15 Mpc)[1]
Group or clusterAbell 401
Characteristics
TypecD[1]
Size~514,000 ly (157.7 kpc) (estimated)[1]
Other designations
2MASX J02585781+1334583, Abell 0401:[FDE2024] BCG, PGC 11277, MCG +02-08-044, RX J0258.9+1334:[ZEH2003] 02[1]

UGC 2450 is an elliptical galaxy of type-cD in the constellation of Aries. The redshift of the galaxy is (z) 0.071[1] and it was first discovered by astronomers in December 1977.[2] It is the brightest cluster galaxy (BCG) of the Bautz-Morgan Class Type I galaxy cluster, Abell 401.[3][4]

Description

UGC 2450 is a type-cD galaxy. It contains a central nucleus with a stellar velocity dispersion of around 480 ± 120 kilometers per seconds. The galactic halo has an estimated stellar velocity dispersion of 470 ± 250 kilometers per second. The halo does not show signs of being metal poor based on absorption line strength in its own optical spectrum.[2] The nuclear region is described as both red and faint.[5] The total K-band apparent magnitude for this cD galaxy is estimated to be 10.03 ± 0.04.[6]

A study published in July 1980 based on radio imaging made with the Very Large Array (VLA), has found the cD galaxy is mainly radio-quiet with an absence of both emission lines and a powerful radio source, although the measured radio power is estimated to be <5 × 1021 W Hz-1.[7][8]

There is evidence that a neighboring satellite galaxy might be located near UGC 2450. This galaxy is estimated to have a separation of 20 kiloparsecs with a velocity of 600 kilometers per seconds.[9] A supermassive black hole is present in the center of the cD galaxy with a mass of 10.02 ± 0.03 Mʘ based on an M–sigma relation between its black hole and stellar budge.[6]

References

  1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 "NED Search results for UGC 2450". https://ned.ipac.caltech.edu/byname?objname=UGC+2450&hconst=67.8&omegam=0.308&omegav=0.692&wmap=4&corr_z=1. 
  2. ↑ 2.0 2.1 Faber, S. M.; Burstein, D.; Dressler, A. (December 1977). "Spectrum of the halo of the cD galaxy in Abell 401". The Astronomical Journal 82: 941. doi:10.1086/112152. ISSN 0004-6256. Bibcode: 1977AJ.....82..941F. https://articles.adsabs.harvard.edu/pdf/1977AJ.....82..941F. 
  3. ↑ Ftaclas, C.; Struble, M. F. (November 1983). "The intrinsic shape of cD galaxies." (in en). The Astrophysical Journal 274: 521–528. doi:10.1086/161465. ISSN 0004-637X. Bibcode: 1983ApJ...274..521F. https://articles.adsabs.harvard.edu/pdf/1983ApJ...274..521F. 
  4. ↑ Murphy, H. P.; Schild, R. E.; Weekes, T. C. (March 1983). "CCD camera observations of nearby rich clusters. I. R photometry of brightest galaxies." (in en). Monthly Notices of the Royal Astronomical Society 202: 1127–1139. doi:10.1093/mnras/202.4.1127. ISSN 0035-8711. https://ui.adsabs.harvard.edu/scan/manifest/1983MNRAS.202.1127M?art=true. 
  5. ↑ Nilson, P. (1973). "Uppsala General Catalogue of Galaxies, 1973, Acta Universitatis Upsalienis, Nova Regiae Societatis Upsaliensis, Series v: a Vol." (in en). Nova Acta Regiae Soc. Sci. Upsaliensis Ser. V: 0. Bibcode: 1973UGC...C...0000N. https://ui.adsabs.harvard.edu/abs/1973UGC...C...0000N/abstract. 
  6. ↑ 6.0 6.1 Ríos-López, Emmanuel; López-Cruz, Omar; Añorve, Christopher; Valerdi, Mabel; Dufrane, Victoria R; Rodríguez-Hernández, Erick A (2025-04-25). "2D surface brightness modelling of large 2MASS galaxies II: the role of classical bulges and pseudobulges on galaxy scaling relations and its implication for supermassive black hole formation". Monthly Notices of the Royal Astronomical Society 539 (3): 2583–2607. doi:10.1093/mnras/staf606. ISSN 0035-8711. https://watermark02.silverchair.com/staf606.pdf?token=AQECAHi208BE49Ooan9kkhW_Ercy7Dm3ZL_9Cf3qfKAc485ysgAAA1EwggNNBgkqhkiG9w0BBwagggM-MIIDOgIBADCCAzMGCSqGSIb3DQEHATAeBglghkgBZQMEAS4wEQQMsLP5DqmSxz2GcnyXAgEQgIIDBLocJSE_yZP-kxUmybbM7OwRmv11tO9JsbpAmsLn9EALTG-229ZrdNcuG5_8KkbkZk1DPn7VuuRZIc-rZ-t-LGVloDBRd1QC9yV863OtitmjHIanGilT51QiwOSXgHyyNhGt519aJEnKAbfAJTsMkUq1ia5RdwkjIh7WJ_WDIcqzdnNChAtyhSiI_gyw5pZcRjFCgczG_Q8djshVv-B88GP2Enrhx-TyPltyuJp9xeZoMDD4o0yJgRfVKusxeoIcUV2aKzzVyLYUlKGenH7h3qEv1uJC7_S9CEC3enrwZCKof5OJl8He_DU9DgeE1AhQhjNvKqRoIsfqRcj3tKcBioxKg816_pFZX3xegF5EWu6stw_AbbjfYwpatq1Ka_eY_l2cecviaBcu8txKVmMtmioJw56tWaDsztpnNi5EKZGAE-47uvX4g-jGZ0k7aKE0vB7RdTMmsUY2lx3MDU9cGWvIUEV4ycKEL0B7CINdpognxi8VJH2fFVL-EIlyPXkeKSYPYtF4DLx6QTlsK8B-JnJoR1J-Xk6YpOxM8HCvOAuDwirYo1BGpyqd8UvCb0jNKN5VfRKd0FZkc9rJkqAu3sbUk-8caTOsYgerDMueZzsbPXBJvev6O58z6IWkSDink16Z6QxQTP6_DDZjiKBDSNFrKvNVq72JFQ-8HTv-WzsJU7A-j3mns1TtC5pB8E9zmsFDcAvuUE3Ob36HFLdO-QlI2SDCP6agPH4RkA_yVkTAxb8gJZcOMA9stPhkHl_cWCNPzYy_DU4-kkNMGUpoo7yNWP7ojd-fasl5ZTq2ozuUygC3lOW_4EfCDLgwjtM6GyGp2W5n5oXUOkktrPjbyKAfKs7uJpVWLWmecPhxO_OF3NfPQBBOPgyDvTBk51Ywj8CgPTsjmflwVl4ZKNkdw6yg1RAuGD_9gxFO5b0GHJepqZf-vyPIWo858q4BtDZN86eEAP4qxmAS3vcB-dsBiVLmVQSXW9OMMaWkc8rO_Suzpv_YzZb0By_yTkHTtZmqft4UlfA. 
  7. ↑ Burns, Jack O. (January 1990). "The Radio Properties of cD Galaxies in Abell Clusters. I. an X-ray Selected Sample" (in en). The Astronomical Journal 99: 14. doi:10.1086/115307. ISSN 0004-6256. Bibcode: 1990AJ.....99...14B. https://articles.adsabs.harvard.edu/pdf/1990AJ.....99...14B. 
  8. ↑ Burns, J. O.; Ulmer, M. P. (July 1980). "On the distribution of radio emission in the X-ray cluster of galaxies Abell 401." (in en). The Astronomical Journal 85: 773–779. doi:10.1086/112739. ISSN 0004-6256. Bibcode: 1980AJ.....85..773B. https://articles.adsabs.harvard.edu/pdf/1980AJ.....85..773B. 
  9. ↑ Cowie, L. L.; Hu, E. M. (June 1986). "Kinematic Evidence of Satellite Galaxy Populations in the Potential Wells of First-ranked Cluster Galaxies" (in en). The Astrophysical Journal 305: L39. doi:10.1086/184681. ISSN 0004-637X. Bibcode: 1986ApJ...305L..39C. https://articles.adsabs.harvard.edu/pdf/1986ApJ...305L..39C. 



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