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  • 21 Aug, 2019

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NGC 5490
NGC 5490 is a large elliptical galaxy located in the constellation of Boötes. Its velocity relative to the cosmic microwave background is 5,075 ± 22 km/s, which corresponds to a Hubble distance of 244.1 ± 17.1 Mly (74.85 ± 5.25 Mpc). In addition, 13 non-redshift measurements gives a distance of 269.98 ± 15.01 Mly (82.777 ± 4.603 Mpc). NGC 5490 was discovered by the German-British astronomer William Herschel on 14 March 1784.

Supernovae

Two supernovae have been observed in NGC 5490:

Supermassive Black Hole

According to a study published in 2009 and based on the internal velocity of the galaxy measured by the Hubble Space Telescope, the mass of the supermassive black hole at the center of NGC 5490 is between 260 million and 1.9 billion M☉.

GRA B1408+17

According to the SIMBAD database, NGC 5490 is a radio galaxy. GRA B1408+17 is a radio-source in NGC 5490 located at the coordinates RA 14 10 24, DEC +17° 32′ 00″.

NGC 5490 Group

According to A.M. Garcia, NGC 5490 is the main galaxy in a group that bears its name. The NGC 5490 group (also known as LGG 376) has three other members: IC 982, IC 984, and UGC 9078.

References

  1. ^ Skrutskie, Michael F.; Cutri, Roc M.; Stiening, Rae; Weinberg, Martin D.; Schneider, Stephen E.; Carpenter, John M.; Beichman, Charles A.; Capps, Richard W.; Chester, Thomas; Elias, Jonathan H.; Huchra, John P.; Liebert, James W.; Lonsdale, Carol J.; Monet, David G.; Price, Stephan; Seitzer, Patrick; Jarrett, Thomas H.; Kirkpatrick, J. Davy; Gizis, John E.; Howard, Elizabeth V.; Evans, Tracey E.; Fowler, John W.; Fullmer, Linda; Hurt, Robert L.; Light, Robert M.; Kopan, Eugene L.; Marsh, Kenneth A.; McCallon, Howard L.; Tam, Robert; Van Dyk, Schuyler D.; Wheelock, Sherry L. (1 February 2006). "The Two Micron All Sky Survey (2MASS)". The Astronomical Journal. 131 (2): 1163–1183. Bibcode:2006AJ....131.1163S. doi:10.1086/498708. ISSN 0004-6256. S2CID 18913331.
  2. ^ Kochanek, C. S.; et al. (October 2001), "The K-Band Galaxy Luminosity Function", The Astrophysical Journal, 560 (2): 566–579, arXiv:astro-ph/0011456, Bibcode:2001ApJ...560..566K, doi:10.1086/322488, S2CID 119420446.
  3. ^ "NED results for object NGC 5490", NASA/IPAC Extragalactic Database, retrieved 2015-10-29.
  4. ^ Tully, R. Brent; et al. (October 2013), "Cosmicflows-2: The Data", The Astronomical Journal, 146 (4): 25, arXiv:1307.7213, Bibcode:2013AJ....146...86T, doi:10.1088/0004-6256/146/4/86, S2CID 118494842, 86.
  5. ^ "Distance Results for NGC 5490". NASA/IPAC EXTRAGALACTIC DATABASE. NASA. Retrieved 11 December 2024.
  6. ^ Seligman, Courtney. "New General Catalogue Objects: NGC 5490". Celestial Atlas. Retrieved 11 December 2024.
  7. ^ Li, W. -D.; Qiu, Y. -L.; Qiao, Q. -Y.; Zhang, Y.; Zhou, W.; Hu, J. -Y. (1997). "Supernova 1997cn in NGC 5490". International Astronomical Union Circular (6661): 1. Bibcode:1997IAUC.6661....1L.
  8. ^ "SN 1997cn". Transient Name Server. IAU. Retrieved 11 December 2024.
  9. ^ "SN 2015bo". Transient Name Server. IAU. Retrieved 11 December 2024.
  10. ^ Beifiori, A.; Sarzi, M.; Corsini, E. M.; Bontà, E. Dalla; Pizzella, A.; Coccato, L.; Bertola, F. (2009). "UPPER LIMITS ON THE MASSES OF 105 SUPERMASSIVE BLACK HOLES FROM HUBBLE SPACE TELESCOPE /SPACE TELESCOPE IMAGING SPECTROGRAPH ARCHIVAL DATA". The Astrophysical Journal. 692 (1): 856–868. arXiv:0809.5103. Bibcode:2009ApJ...692..856B. doi:10.1088/0004-637X/692/1/856.
  11. ^ "NGC 5490". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 11 December 2024.
  12. ^ "GRA B1408+17". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 11 December 2024.
  13. ^ Garcia, A. M. (1993). "General study of group membership. II. Determination of nearby groups". Astronomy and Astrophysics Supplement Series. 100: 47. Bibcode:1993A&AS..100...47G.


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