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NGC 2613

NGC 2613
Observation data (J2000 epoch)
ConstellationPyxis
Right ascension08h 33m 22.841s[1]
Declination−22° 58′ 25.21″[1]
Redshift0.005591[2]
Heliocentric radial velocity1,675 km/s[3]
Distance78 Mly (24 Mpc)[3]
Apparent magnitude (V)11.6[2]
Characteristics
TypeSA(s)b[4]
Mass(7.50±0.87)×1011 M☉.[5] M☉
Apparent size (V)7′.59 × 1′.70[6]
Notable featuresEdge-on galaxy
Other designations
IRAS 08311-2248, MCG-04-21-003, UGCA 141, PGC 23997[7]

NGC 2613 is a spiral galaxy in the southern constellation of Pyxis, next to the western constellation border with Puppis. It was discovered by the German-born astronomer William Herschel on November 20, 1784.[8] With an apparent visual magnitude of 10.5, the galaxy is faintly visible using a telescope with a 100 mm (4 in) aperture. It appears spindle-shaped as it is almost edge-on to observers on Earth.[9]

The morphological classification of NGC 2613 is SA(s)b,[4] indicating a spiral galaxy with no bar or ring, and moderately tightly-wound spiral arms. It is inclined by an angle of approximately 79° to the line of sight from the Earth[5] and is oriented with the long axis along a position angle of 133°.[4] The radius of neutral hydrogen in the galaxy is about 35 kpc,[10] and the mass of the neutral hydrogen is (8.73±0.32)×109 M☉. The galaxy has a combined dynamic mass of (7.50±0.87)×1011 M☉.[5]

NGC 2613 has an active galactic nucleus that is deeply embedded in obscuring gas and dust.[5] Emission data collected by the Very Large Array shows a feature resembling a tidal tail along the southeast side of the galaxy, which was most likely produced by an interaction with the small companion galaxy, ESO 495-G017, now located to the northwest of NGC 2613.[10]

On 20 March 2023, a supernova was observed in NGC 2613: SN 2023dtc (Type Ib, mag. 18).[11]

References

  1. ^ a b 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. ^ a b "NASA/IPAC Extragalactic Database". Results for NGC 6946. Retrieved 22 September 2015.
  3. ^ a b Tully, R. Brent; et al. (August 2016). "Cosmicflows-3". The Astronomical Journal. 152 (2): 21. arXiv:1605.01765. Bibcode:2016AJ....152...50T. doi:10.3847/0004-6256/152/2/50. S2CID 250737862. 50.
  4. ^ a b c Chaves, Tara A.; Irwin, Judith A. (August 2001). "High-Latitude H I in NGC 2613: Structure and Dynamics". The Astrophysical Journal. 557 (2): 646–658. Bibcode:2001ApJ...557..646C. doi:10.1086/321686.
  5. ^ a b c d Li, Z.; et al. (September 2006). "An XMM-Newton observation of the massive edge-on Sb galaxy NGC 2613". Monthly Notices of the Royal Astronomical Society. 371 (1): 147–156. arXiv:astro-ph/0606543. Bibcode:2006MNRAS.371..147L. doi:10.1111/j.1365-2966.2006.10682.x. S2CID 1380874.
  6. ^ Paturel, G.; et al. (December 2003). "HYPERLEDA. I. Identification and designation of galaxies". Astronomy and Astrophysics. 412: 45–55. Bibcode:2003A&A...412...45P. doi:10.1051/0004-6361:20031411.
  7. ^ "NGC 2613". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2020-09-04.
  8. ^ Seligman, Courtney. "NGC Objects: NGC 2600 - 2649". Celestial Atlas. Retrieved 2020-09-05.
  9. ^ O'Meara, Stephen James (2007). Steve O'Meara's Herschel 400 Observing Guide. Cambridge, United Kingdom: Cambridge University Press. p. 82. ISBN 978-0-521-85893-9.
  10. ^ a b Irwin, Judith A.; Chaves, Tara (March 2003). "High-Latitude H I in NGC 2613: Buoyant Disk-Halo Outflow". The Astrophysical Journal. 585 (1): 268–280. arXiv:astro-ph/0212072. Bibcode:2003ApJ...585..268I. doi:10.1086/345891. S2CID 6400818.
  11. ^ Transient Name Server entry for SN 2023dtc. Retrieved 21 March 2023.
  • Media related to NGC 2613 at Wikimedia Commons
Quelle: https://en.wikipedia.org/wiki/NGC_2613