NGC 7479 explained

NGC 7479
Epoch:J2000
Type:SB(s)c[1]
Dist Ly:105 Mly
Z:2381 ± 1 km/s
Appmag V:11.6
Size V:4.1 × 3.1
Constellation Name:Pegasus

NGC 7479 (also known as Caldwell 44 or the Superman Galaxy[2]) is a barred spiral galaxy about 105 million light-years away in the constellation Pegasus. William Herschel discovered it in 1784. NGC 7479 is also recognized as a Seyfert galaxy and a LINER undergoing starburst activity not only on the nucleus and the outer arms, but also across the bar of the galaxy, where most of the stars were formed in the last 100 million years.[3] Polarization studies of this galaxy indicate that it recently underwent a minor merger and that it is unique in the radio continuum, with arms opening in a direction opposite to the optical arms.[4] This feature, along with the asymmetrical arms of the galaxy and the intense star formation activity are attributed to a merger with a smaller galaxy.[3] This galaxy is similar in both size and morphology to the barred spiral NGC 1300.

Two supernovae have been observed in NGC 7479: SN 1990U (type Ic, mag. 16),[5] and SN 2009jf (type Ib, mag. 18).[6]

External links

Notes and References

  1. Web site: NASA/IPAC Extragalactic Database . Results for NGC 7479 . 2006-11-25 .
  2. Book: Stoyan, Ronald. Schurig. Stephan. interstellarum Deep Sky Atlas. Cambridge University Press; Oculum-Verlag GmbH. Erlangen. 2014. 978-1-107-50338-0. 920437579.
  3. Zhou. Zhi-Min. Cao. Chen. Meng. Xian-Min. Wu. Hong. Star formation properties in barred galaxies (SFB). I. Ultraviolet to infrared imaging and spectroscopic studies of NGC 7479. The Astronomical Journal. 1 August 2011. 142. 2. 38. 10.1088/0004-6256/142/2/38. 1107.0187 . 2011AJ....142...38Z . 118536887.
  4. Laine. Seppo. Beck. Rainer. Radio Continuum Jet in NGC 7479. The Astrophysical Journal. 20 January 2008. 673. 1. 128–142. 10.1086/523960. 0709.4476 . 2008ApJ...673..128L . 13368749.
  5. Web site: Transient Name Server entry for SN 1990U. 29 March 2023.
  6. Web site: Transient Name Server entry for SN2009jf. 29 March 2023.