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NGC 1409 is a quiescent[4] lenticular galaxy in the equatorial constellation of Taurus. It was discovered by the German-born astronomer William Herschel on January 6, 1785.[6] NGC 1409 is located in close proximity to the smaller Seyfert galaxy NGC 1410, and the two are strongly interacting. Their respective nuclei have a separation of just 23 kly, and they share a diffuse stellar envelope with a radius extending out to 49 kly.[4]

NGC 1409
Hubble Space Telescope image of NGC 1410 (left) and NGC 1409 (right)
Credit: HST/NASA/ESA
Observation data (J2000 epoch)
ConstellationTaurus[1]
Right ascension03h 41m 10.546s[2]
Declination−01° 18′ 10.12″[2]
Helio radial velocity7750±40 km/s[3]
Apparent magnitude (V)15.4[3]
Characteristics
TypeSB0[4] or SAB pec[3]
Apparent size (V)1′.0 × 0′.8[3]
Notable featuresInteracting with NGC 1410
Other designations
NGC 1409, UGC 2821, PGC 13553[5][3]

The morphological classification of this galaxy most closely matches type SB0, which indicates a barred lenticular galaxy. There is a conspicuous pipeline of dust and gas being funneled to NGC 1409 from NGC 1410. This lane has a typical width of 330 ly, passing to the north in front of NGC 1409 and then behind, becoming denser toward the galactic core. It has an estimated mass of 3×108 M☉ and is transferring mass at the estimated rate of 1.1–1.4 M☉ yr–1. However, there is no indications of recent star formation in NGC 1409 from this incoming material.[4]


References


  1. "HubbleSite - NewsCenter - Intergalactic 'Pipeline' Funnels Matter Between Colliding Galaxies". Retrieved 2007-04-05.
  2. 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: 1163–1183. doi:10.1086/498708. ISSN 0004-6256.
  3. "NASA/IPAC Extragalactic Database". Results for NGC 1409. Retrieved 2007-04-05.
  4. Keel, William C. (March 2004). "Ongoing Mass Transfer in the Interacting Galaxy Pair NGC 1409/1410". The Astronomical Journal. 127 (3): 1325–1335. arXiv:astro-ph/0311633. Bibcode:2004AJ....127.1325K. doi:10.1086/381927. S2CID 16772319.
  5. "NGC 1409". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2020-10-10.
  6. Seligman, Courtney. "NGC Objects: NGC 1400 - 1449". Retrieved 2020-10-09.



На других языках

[de] NGC 1409

NGC 1409 ist die Bezeichnung einer Galaxie im Sternbild Stier, die 345 Millionen Lichtjahre von der Milchstraße entfernt ist. Sie befindet sich in Wechselwirkung mit der Galaxie NGC 1410, von der sie rund 23.000 Lichtjahre entfernt ist. Es wird vermutet, dass die beiden Galaxien vor etwa 100 Millionen Jahren kollidierten und dass sie in ca. 200 Millionen Jahren verschmelzen werden.
- [en] NGC 1409

[ru] NGC 1409

NGC 1409 (другие обозначения — UGC 2821, KCPG 93A, MCG 0-10-11, VV 729, ZWG 391.28, 3ZW 55, NPM1G -01.0133, PGC 13553) — линзообразная галактика (SB0) в созвездии Телец.


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