NGC 4414 explained

NGC 4414
Epoch:J2000
Type:SA(rs)c[1]
Dist Ly:62.3 Mly[2]
Appmag V:11.0
Size V:3.6 × 2.0
Constellation Name:Coma Berenices
Names:UGC 7539, PGC 40692

NGC 4414, also known as the Dusty Spiral Galaxy,[3] is an unbarred spiral galaxy about 62 million light-years away in the constellation Coma Berenices. It is a flocculent spiral galaxy, with short segments of spiral structure but without the dramatic well-defined spiral arms of a grand design spiral.

Four supernovae have been observed in this galaxy: SN 1974G (type I, mag. 13),[4] SN 2013df (type II, mag. 14),[5] SN 2021J (type Ia, mag. 12),[6] and SN 2023hlf (type II, mag. 17.8).[7]

It was imaged by the Hubble Space Telescope in 1995, as part of the HST's main mission to determine the distance to galaxies, and again in 1999 as part of the Hubble Heritage project. It has been part of an ongoing effort to study its Cepheid variable stars. The outer arms appear blue due to the continuing formation of young stars and include a possible luminous blue variable with an absolute magnitude of −10.[8]

NGC 4414 is also an isolated galaxy without signs of past interactions with other galaxies[9] and despite not being a starburst galaxy shows a high density and richness of gas – both atomic and molecular, with the former extending far beyond its optical disk.[10]

NGC 4414 is a member of the Coma I Group, a group of galaxies lying physically close to the Virgo Cluster.[11] [12]

External links

Notes and References

  1. Web site: NASA/IPAC Extragalactic Database . Results for NGC 4414 . 2006-11-25 .
  2. Pattern Speeds BIMA-SONG Galaxies with Molecule-Dominated ISMs Using the Tremaine-Weinberg Method . 614 . 1 . 142–157 . Astrophys. J. . astro-ph/0406426. 2004ApJ...614..142R . 10.1086/423423 . 2004 . Rand . Richard J. . Wallin . John F. . 17095983 .
  3. Book: Stoyan, Ronald. Schurig. Stephan. interstellarum Deep Sky Atlas. Cambridge University Press; Oculum-Verlag GmbH. Erlangen. 2014. 978-1-107-50338-0. 920437579.
  4. https://www.wis-tns.org/object/1974g Transient Name Server entry for SN 1974G.
  5. https://www.wis-tns.org/object/2013df Transient Name Server entry for SN 2013df.
  6. https://www.wis-tns.org/object/2021j Transient Name Server entry for SN 2021J.
  7. https://www.wis-tns.org/object/2023hlf Transient Name Server entry for SN 2023hlf.
  8. Frattare, L. M. . Zurek, D. R. . The Discovery of a Possible Luminous Blue Variable in NGC 4414 . American Astronomical Society, 194th AAS Meeting, #82.02; Bulletin of the American Astronomical Society . 1997 . 31 . 967 . 1999AAS...194.8202F.
  9. Braine, J. . Brouillet, N. . Baudry, A. . The anatomy of an isolated spiral galaxy: NGC 4414. . . 1997 . 318 . 19–28 . 1997A&A...318...19B.
  10. Braine, J. . Combes, F. . van Driel, W. . NGC 4414: A flocculent galaxy with a high gas surface density . Astronomy and Astrophysics . 1993 . 280 . 2 . 451–467 . 1993A&A...280..451B.
  11. Gregory. Stephen A.. Thompson. Laird A.. April 1977. The Coma i Galaxy Cloud. 1977ApJ...213..345G. The Astrophysical Journal. en. 213. 345–350. 10.1086/155160. 0004-637X.
  12. News: NGC 4414, a dusty spiral galaxy in Coma Berenices. 2012-11-12. Anne's Astronomy News. 2018-05-02. nl-NL.

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