NGC 3430 explained

NGC 3430
Constellation Name:Leo Minor
Epoch:J2000
Type:SAB(rs)c[1]
Dist Ly:NaNMpc
Z:0.005290
H Radial V:1586 ± 1 km/s
Appmag V:11.6
Size V:4.1' x 2.2'
Size:~34.5kpc (estimated)

NGC 3430 is a barred spiral galaxy in the constellation of Leo Minor. Its velocity with respect to the cosmic microwave background is 1,869 ± 20km/s, which corresponds to a Hubble distance of 27.6 ± 2.0Mpc (∼90million light-years). It was discovered by German-British astronomer William Herschel on 7 December 1785.

NGC 3430 is classified as a well-known example of an SAc spiral galaxy with no central bar structure but has spiral arms found open and clear-defined.[2] Moreover, it is also a Wolf-Rayet galaxy, with star-forming regions[3] and forms a pair with NGC 3424, a nearby starburst galaxy.[4] According to a 1997 study presented by researchers, these galaxies are clearly showing signs of tidal interaction.[5]

Two supernovae have been observed in NGC3936: SN2004ez (typeII, mag.17.3),[6] [7] and PSNJ10520833+3256394 (typeIIb, mag.17.8).[8]

See also

Notes and References

  1. Web site: NASA/IPAC Extragalactic Database . Results for NGC 3430 . 23 July 2024.
  2. Web site: information@eso.org . An island universe . 2024-07-24 . www.esahubble.org . en.
  3. Keel . William C. . 1983-01-01 . Wolf-Rayet Stars in NGC 5430 . IUE Proposal . 1472.
  4. Jaiswal . S. . Omar . A. . 2016-06-07 . Hα imaging survey of Wolf–Rayet galaxies: morphologies and star formation rates . Monthly Notices of the Royal Astronomical Society . 462 . 1 . 92–114 . 10.1093/mnras/stw1333 . 0035-8711. 1606.02706 .
  5. Nordgren . Tyler E. . Chengalur . Jayaram N. . Salpeter . E. E. . Terzian . Yervant . 1997-07-01 . Close Galaxy pairs in Medium Density Regions: The Northern Sky . The Astronomical Journal . 114 . 77–93 . 10.1086/118454 . 0004-6256.
  6. https://www.wis-tns.org/object/2004ez Transient Name Server entry for SN2004ez.
  7. Nakano . S. . Itagaki . K. . Kadota . K. . 2004-10-01 . Supernova 2004ez in NGC 3430 . International Astronomical Union Circular . 8419 . 2 . 0081-0304.
  8. https://www.astronomerstelegram.org/?read=8428 The Astronomer's Telegram: iPTF independent discovery and classification of PSNJ10520833+3256394.

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