NGC 3239 is an irregular galaxy in the constellation of Leo.[2] It was the host of SN 2012A, the first supernova discovered in 2012 and a Type II-P that reached a peak visual magnitude of +13.83.[3][4] The galaxy was discovered in 1784 by William Herschel[5] and is part of the New General Catalogue. It harbors a large and relatively bright H II region in its southeastern section that was first cataloged by Russian astronomer Boris Vorontsov-Velyaminov as VV95b.[6] It's believed that NGC 3239 is the result of a galactic merger with a low-mass galaxy.[7]

References

  1. ^ a b c d e "NGC 3239". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 10 March 2019.
  2. ^ Ford, Dominic. "The galaxy NGC 3239 - In-The-Sky.org". in-the-sky.org. Retrieved 2019-03-09.
  3. ^ "APOD: 2012 January 27 - NGC 3239 and SN 2012A". apod.nasa.gov. Retrieved 2019-03-09.
  4. ^ Tomasella, L.; Cappellaro, E.; Fraser, M.; Pumo, M. L.; Pastorello, A.; Pignata, G.; Benetti, S.; Bufano, F.; Dennefeld, M.; Harutyunyan, A.; Iijima, T.; Jerkstrand, A.; Kankare, E.; Kotak, R.; Magill, L.; Nascimbeni, V.; Ochner, P.; Siviero, A.; Smartt, S.; Sollerman, J.; Stanishev, V.; Taddia, F.; Taubenberger, S.; Turatto, M.; Valenti, S.; Wright, D. E.; Zampieri, L. (2013). "Comparison of progenitor mass estimates for the type IIP SN 2012A". Monthly Notices of the Royal Astronomical Society. 434 (2): 1636–1657. arXiv:1305.5789. Bibcode:2013MNRAS.434.1636T. doi:10.1093/mnras/stt1130.
  5. ^ "New General Catalog Objects: NGC 3200 - 3249". cseligman.com. Retrieved 2019-03-12.
  6. ^ "The Atlas and Catalogue of Interacting Galaxies". ned.ipac.caltech.edu. Retrieved 2025-02-16.
  7. ^ Zasov, Anatoly V.; Saburova, Anna S.; Egorov, Oleg V.; Lander, Vsevolod Yu; Afanasiev, Victor L.; Uklein, Roman I. (2024-02-01). "Long-slit spectral study of the unusual post-interacting galaxy Arp 263". Monthly Notices of the Royal Astronomical Society. 528 (1): 294–303. Bibcode:2024MNRAS.528..294Z. doi:10.1093/mnras/stad3982. ISSN 0035-8711.
  • Media related to NGC 3239 at Wikimedia Commons


Allikas: https://en.wikipedia.org/wiki/NGC_3239
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