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NGC 2962

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NGC 2962
NGC 2962 imaged by Sloan Digital Sky Survey
Observation data (J2000 epoch)
ConstellationHydra
Right ascension09h 40m 53.9396s[1]
Declination+05° 09′ 57.025″[1]
Redshift0.006561 ± 0.000017 [1]
Heliocentric radial velocity1,967 ± 5 km/s[1]
Distance109 ± 20.4 Mly (33.5 ± 6.2 Mpc)[1]
Group or clusterNGC 2962 Group
Apparent magnitude (V)12.0[2]
Characteristics
Type(R)SAB(rs)0+ [1]
Size~93,000 ly (28.4 kpc) (estimated)[1]
Apparent size (V)2.6′ × 1.9′[1]
Other designations
IRAS F09382+0523, UGC 5167, MCG +01-25-11, PGC 27635, CGCG 331-040[1]

NGC 2962 is a lenticular galaxy in the constellation Hydra. The galaxy lies about 110 million light years away from Earth, which means, given its apparent dimensions, that NGC 2962 is approximately 90,000 light years across.[1] It was discovered by Albert Marth on December 10, 1864.[3]

Characteristics

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NGC 2962 is lenticular galaxy with two bars without a box shaped bulge.[4] The galaxy also has two rings, an inner ring with major axis 0.93 arcminutes long and an outer ring with major axis 2.13 arcminutes long.[5] The galaxy features a hydrogen disk, visible in HI, exteding well beyond the optical radius of the galaxy.[6]

The outer ring of NGC 2962 has low surface brightness and is created by tightly wound spiral arms which overlap while there are faint connections with the central region. There is no spiral pattern in the brighter, inner region of the galaxy.[7] The outer ring is better visible in ultraviolet than the inner ring and contains about 5–8% of the stellar mass of the galaxy.[8] Ultraviolet imaging by GALEX shows it is bluer than the rest of the galaxy and has spiral arms emerging from it.[9] The ring corotates with the rest of the galaxy.[10]

The galaxy has probably accreted gas from a companion galaxy, which has lead to renewed star formation activity in the nucleus.[8]

Supernova

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One supernova has been observed in NGC 2962, SN 1995D. The supernova was discovered by Reiki Kushida in CCD images on 10 February 1995 at an apparent magnitude of 14.0, lying 11 arcseconds east and 90.5 arcseconds to the south of the centre of the galaxy.[11] The galaxy was identified as a type Ia supernova about a week before maximum.[12][13][14]

Nearby galaxies

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NGC 2962 is the foremost galaxy of the NGC 2962 Group or LGG 178. Other members of the group include NGC 2966 and UGC 5107.[15][16] A hydrogen bridge has been found to connect NGC 2962 with gas rich galaxy SDSS J094056.3+050240.5, lying 8 arcminutes away.[6]

References

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  1. ^ a b c d e f g h i j "Results for object NGC 2962". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 17 February 2025.
  2. ^ "Revised NGC Data for NGC 2962". spider.seds.org. Retrieved 30 March 2024.
  3. ^ Seligman, Courtney. "NGC 2962 (= PGC 27635)". Celestial Atlas. Retrieved 19 November 2018.
  4. ^ de Lorenzo-Cáceres, A; Méndez-Abreu, J; Thorne, B; Costantin, L (21 March 2019). "Deconstructing double-barred galaxies in 2D and 3D -- I. Classical nature of the dominant bulges". Monthly Notices of the Royal Astronomical Society. 484 (1): 665–686. doi:10.1093/mnras/sty3520.
  5. ^ Comerón, S.; Salo, H.; Laurikainen, E.; Knapen, J. H.; Buta, R. J.; Herrera-Endoqui, M.; Laine, J.; Holwerda, B. W.; Sheth, K.; Regan, M. W.; Hinz, J. L.; Muñoz-Mateos, J. C.; Gil de Paz, A.; Menéndez-Delmestre, K.; Seibert, M.; Mizusawa, T.; Kim, T.; Erroz-Ferrer, S.; Gadotti, D. A.; Athanassoula, E.; Bosma, A.; Ho, L. C. (February 2014). "ARRAKIS: atlas of resonance rings as known in the S 4 G" (PDF). Astronomy & Astrophysics. 562: A121. doi:10.1051/0004-6361/201321633.
  6. ^ a b Grossi, M.; di Serego Alighieri, S.; Giovanardi, C.; Gavazzi, G.; Giovanelli, R.; Haynes, M. P.; Kent, B. R.; Pellegrini, S.; Stierwalt, S.; Trinchieri, G. (May 2009). "The Hi content of early-type galaxies from the ALFALFA survey: II. The case of low density environments". Astronomy & Astrophysics. 498 (2): 407–417. arXiv:0903.0602. Bibcode:2009A&A...498..407G. doi:10.1051/0004-6361/200810823.
  7. ^ Sandage, A., Bedke, J. (1994), The Carnegie Atlas of Galaxies. Volume I, Carnegie Institution of Washington
  8. ^ a b Marino, Antonietta; Bianchi, Luciana; Rampazzo, Roberto; Thilker, David A.; Annibali, Francesca; Bressan, Alessandro; Buson, Lucio Maria (1 August 2011). "Tracing Rejuvenation Events in Nearby S0 Galaxies". The Astrophysical Journal. 736 (2): 154. arXiv:1105.3812. Bibcode:2011ApJ...736..154M. doi:10.1088/0004-637X/736/2/154.
  9. ^ Marino, A.; Rampazzo, R.; Bianchi, L.; Annibali, F.; Bressan, A.; Buson, L.M.; Clemens, M. S.; Panuzzo, P.; Zeilinger, W. W. (11 February 2011). "Nearby early-type galaxies with ionized gas: the UV emission from GALEX observations★: Nearby early-type galaxies with ionized gas". Monthly Notices of the Royal Astronomical Society. 411 (1): 311–331. doi:10.1111/j.1365-2966.2010.17684.x.
  10. ^ Sil’chenko, Olga K.; Moiseev, Alexei V.; Egorov, Oleg V. (1 September 2019). "The Gas Kinematics, Excitation, and Chemistry, in Connection with Star Formation, in Lenticular Galaxies". The Astrophysical Journal Supplement Series. 244 (1): 6. arXiv:1907.07261. Bibcode:2019ApJS..244....6S. doi:10.3847/1538-4365/ab3415.
  11. ^ Nakano, S.; Kushida, R.; Kushida, Y. (1 February 1995). "Supernova 1995D in NGC 2962". International Astronomical Union Circular (6134): 1.
  12. ^ Benetti, S.; Mendes de Oliveira, C.; Manchado, A. (1 February 1995). "Supernova 1995D in NGC 2962". International Astronomical Union Circular (6135): 1. ISSN 0081-0304.
  13. ^ Sadakane, Kozo; Yokoo, Takeo; Arimoto, Jun-ichi; Matsumoto, Katsura; Honda, Satoshi; Tanabe, Kazuhito; Wakamatsu, Ken-ichi; Nishida, Mitsugu; Yoshida, Michitoshi; Takada-Hidai, Masahide (1 February 1996). "Type-Ia Supernova SN 1995D in NGC 2962: Optical V , R , and I Band Photometry and Spectra". Publications of the Astronomical Society of Japan. 48 (1): 51–57. doi:10.1093/pasj/48.1.51.
  14. ^ Wang, Lifan; Wheeler, J. Craig; Li, Zongwei; Clocchiatti, Alejandro (August 1996). "Broadband Polarimetry of Supernovae: SN 1994D, SN 1994Y, SN 1994ae, SN 1995D, and SN 1995H". The Astrophysical Journal. 467: 435. arXiv:astro-ph/9602155. Bibcode:1996ApJ...467..435W. doi:10.1086/177617.
  15. ^ Makarov, Dmitry; Karachentsev, Igor (21 April 2011). "Galaxy groups and clouds in the local (z~ 0.01) Universe". Monthly Notices of the Royal Astronomical Society. 412 (4): 2498–2520. arXiv:1011.6277. Bibcode:2011MNRAS.412.2498M. doi:10.1111/j.1365-2966.2010.18071.x. S2CID 119194025. Retrieved 1 February 2025.
  16. ^ Garcia, A. M. (1 July 1993). "General study of group membership. II. Determination of nearby groups". Astronomy and Astrophysics Supplement Series. 100: 47–90. Bibcode:1993A&AS..100...47G. ISSN 0365-0138.
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