NGC 4651

Source: Wikipedia, the free encyclopedia.
Mly
Apparent magnitude (V)11.39[1]
Characteristics
TypeSA(rs)c[1]
Apparent size (V)4.0′ × 2.6′[1]
Other designations
UGC 7901,[1] PGC 42833[1]
NGC 4651 imaged by the Hubble Space Telescope
ESA / Hubble Space Telescope & NASA
, D. Leonard

light years[2] to 72 million light years.[3]

Features

This member of the Virgo Cluster, located on its outskirts,[4] is known as the Umbrella Galaxy due to the umbrella-shaped structure that extends from its disk to the east and that is composed of stellar streams, being the remnants of a much smaller galaxy that has been torn apart by NGC 4651's tidal forces,[2][5] something that explains why NGC 4651 has been included on Halton Arp's Atlas of Peculiar Galaxies as Arp 189 -galaxy with filaments-.

Studies using

neutral hydrogen show distortions on NGC 4651's outer regions and a gas clump associated with a dwarf galaxy that may have born in the event that produced the mentioned stellar streams.[6]

Unlike most spiral galaxies of the Virgo Cluster, NGC 4651 is rich in neutral hydrogen, also extending beyond the

optical disk,[6] and its star formation is typical for a galaxy of its type.[4]

Two supernovae have been observed in NGC 4651: SN 1987K (type II, mag. 15),[7] and SN 2006my (type II, mag. 15.3).[8]

References

  1. ^ a b c d e f g h "NASA/IPAC Extragalactic Database". Results for NGC 4651. Retrieved 2012-08-04.
  2. ^ a b Nemiroff, R.; Bonnell, J., eds. (15 April 2010). "NGC 4651: The Umbrella Galaxy". Astronomy Picture of the Day. NASA. Retrieved 2012-08-04.
  3. ^ Solanes, J. M.; Sanchis, T.; Salvador-Solé, E.; Giovanelli, R.; Haynes, M. P. (2002). "The Three-dimensional Structure of the Virgo Cluster Region from Tully-Fisher and H I Data". The Astronomical Journal. 124 (5): 2440–2452.
    S2CID 116914132
    .
  4. ^ a b Koopmann, R.; Kenney, J. D. P. (2004). "Hα Morphologies and Environmental Effects in Virgo Cluster Spiral Galaxies". The Astrophysical Journal. 613 (2): 866–885.
    S2CID 17519217
    .
  5. ^ "Stellar Tidal Streams in Spiral Galaxies of the Local Volume". Retrieved 2012-07-21.
  6. ^ a b Chung, A.; Van Gorkom, J.H.; Kenney, J.F.P.; Crowl, Hugh; Vollmer, B. (2009). "VLA Imaging of Virgo Spirals in Atomic Gas (VIVA). I. The Atlas and the H I Properties". The Astronomical Journal. 138 (6): 1741–1816.
    doi:10.1088/0004-6256/138/6/1741
    .
  7. ^ Transient Name Server entry for SN 1987K. Retrieved 30 March 2023.
  8. ^ Transient Name Server entry for SN 2006my. Retrieved 30 March 2023.

External links

  • Media related to NGC 4651 at Wikimedia Commons


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