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NGC 2770

NGC 2770 is a spiral galaxy in the northern constellation of Lynx,[5] near the northern constellation border with Cancer. It was discovered by German-born astronomer William Herschel on December 7, 1785. J. L. E. Dreyer described it as, "faint, large, much extended 150°, mottled but not resolved, 2 stars to north".[8] NGC 2770 was the target for the first binocular image produced by the Large Binocular Telescope.[9]

NGC 2770
NGC 2770 and companion galaxy
Credit: Gemini Observatory/AURA.
Observation data (J2000 epoch)
ConstellationLynx
Right ascension09h 09m 33.622s[1]
Declination+33° 07′ 24.29″[1]
Redshift1943±1 km/s[2]
Distance77 Mly (24 Mpc)[3]
88 Mly (27 Mpc)[4]
Apparent magnitude (V)12.0[5]
Characteristics
TypeSBc[3]
Apparent size (V)1′.967 × 0′.511[1] (NIR)
Notable featuresFour supernovae[6]
Other designations
LEDA 25806, MCG+06-20-038, NGC 2770, UGC 4806[7]

The morphological classification of SBc[3] indicates a barred spiral with moderately-wound arms. The physical properties of this galaxy are similar to those of the Milky Way. The combined mass of stars in the galaxy is estimated at 2.1×1010 M, and it has a star formation rate of ~1.1 M y−1. There are no apparent perturbations of the galaxy due to suspected interaction with the companion galaxy, NGC 2770B.[10]

The Type Ib supernova Supernova 2008D in galaxy NGC 2770, shown in X-ray (left) and visible light (right)

As of 2017, up to four supernovae events have been discovered in this galaxy.[6] Three were of Type Ib: SN 1999eh, SN 2007uy, and SN 2008D.[10] The last of these was the first supernova detected by the X-rays released very early on in its formation, rather than by the optical light emitted during the later stages, which allowed the first moments of the outburst to be observed. It is possible that NGC 2770's interactions with a suspected companion galaxy may have created the massive stars causing this activity.[11] SN 2015bh, discovered in NGC 2770 in February 2015,[12] was either a Type II supernova or the hyper-eruption of a luminous blue variable.[6]

References

  1. ^ a b c Skrutskie, Michael F.; et al. (1 February 2006). "The Two Micron All Sky Survey (2MASS)". The Astronomical Journal. 131 (2): 1163–1183. Bibcode:2006AJ....131.1163S. doi:10.1086/498708. ISSN 0004-6256. S2CID 18913331.
  2. ^ van Driel, W.; et al. (November 2016). "NIBLES: an H I census of stellar mass selected SDSS galaxies. I. The Nançay H I survey". Astronomy & Astrophysics. 595: 43. arXiv:1607.02787. Bibcode:2016A&A...595A.118V. doi:10.1051/0004-6361/201528048. S2CID 118623916. A118.
  3. ^ a b c Ann, H. B.; et al. (2015). "A Catalog of Visually Classified Galaxies in the Local (z ∼ 0.01) Universe". The Astrophysical Journal Supplement Series. 217 (2): 27–49. arXiv:1502.03545. Bibcode:2015ApJS..217...27A. doi:10.1088/0067-0049/217/2/27. S2CID 119253507.
  4. ^ Soderberg, Alicia; et al. (May 22, 2008). "An extremely luminous X-ray outburst at the birth of a supernova". Nature. 453 (7194): 469–474. arXiv:0802.1712. Bibcode:2008Natur.453..469S. doi:10.1038/nature06997. PMID 18497815. S2CID 453215.
  5. ^ a b "NASA/IPAC Extragalactic Database". Results for NGC 2770. Retrieved 2008-05-26.
  6. ^ a b c Thöne, C. C.; et al. (March 2017). "SN 2015bh: NGC 2770's 4th supernova or a luminous blue variable on its way to a Wolf-Rayet star?". Astronomy & Astrophysics. 599: 29. arXiv:1606.09025. Bibcode:2017A&A...599A.129T. doi:10.1051/0004-6361/201629968. S2CID 56266352. A129.
  7. ^ "NGC 2770". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2020-09-07.
  8. ^ Seligman, Courtney. "NGC Objects: NGC 2600 - 2649". Celestial Atlas. Retrieved 2020-09-07.
  9. ^ . Archived from the original on 2011-07-25. Retrieved 2008-05-22.
  10. ^ a b Thöne, Christina C.; et al. (June 2009). "NGC 2770: A Supernova Ib Factory?". The Astrophysical Journal. 698 (2): 1307–1320. arXiv:0807.0473. Bibcode:2009ApJ...698.1307T. doi:10.1088/0004-637X/698/2/1307. S2CID 118697339.
  11. ^ . Gemini Observatory. Archived from the original on 23 August 2015. Retrieved 7 July 2015.
  12. ^ "List of Supernovae". IAU Central Bureau for Astronomical Telegrams. IAU. Retrieved 19 February 2017.

Further reading

  • "Imposter or the Real Deal?". www.spacetelescope.org. Retrieved 6 January 2020.

External links

  •   Media related to NGC 2770 at Wikimedia Commons
  • Astronomers Witness Supernova's First Moments
  • NASA Astronomy Picture of the Day: Supernova Factory NGC 2770 (18 January 2008)
  • NGC 2770 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images


2770, spiral, galaxy, northern, constellation, lynx, near, northern, constellation, border, with, cancer, discovered, german, born, astronomer, william, herschel, december, 1785, dreyer, described, faint, large, much, extended, mottled, resolved, stars, north,. NGC 2770 is a spiral galaxy in the northern constellation of Lynx 5 near the northern constellation border with Cancer It was discovered by German born astronomer William Herschel on December 7 1785 J L E Dreyer described it as faint large much extended 150 mottled but not resolved 2 stars to north 8 NGC 2770 was the target for the first binocular image produced by the Large Binocular Telescope 9 NGC 2770NGC 2770 and companion galaxyCredit Gemini Observatory AURA Observation data J2000 epoch ConstellationLynxRight ascension09h 09m 33 622s 1 Declination 33 07 24 29 1 Redshift1943 1 km s 2 Distance77 Mly 24 Mpc 3 88 Mly 27 Mpc 4 Apparent magnitude V 12 0 5 CharacteristicsTypeSBc 3 Apparent size V 1 967 0 511 1 NIR Notable featuresFour supernovae 6 Other designationsLEDA 25806 MCG 06 20 038 NGC 2770 UGC 4806 7 The morphological classification of SBc 3 indicates a barred spiral with moderately wound arms The physical properties of this galaxy are similar to those of the Milky Way The combined mass of stars in the galaxy is estimated at 2 1 1010 M and it has a star formation rate of 1 1 M y 1 There are no apparent perturbations of the galaxy due to suspected interaction with the companion galaxy NGC 2770B 10 The Type Ib supernova Supernova 2008D in galaxy NGC 2770 shown in X ray left and visible light right As of 2017 up to four supernovae events have been discovered in this galaxy 6 Three were of Type Ib SN 1999eh SN 2007uy and SN 2008D 10 The last of these was the first supernova detected by the X rays released very early on in its formation rather than by the optical light emitted during the later stages which allowed the first moments of the outburst to be observed It is possible that NGC 2770 s interactions with a suspected companion galaxy may have created the massive stars causing this activity 11 SN 2015bh discovered in NGC 2770 in February 2015 12 was either a Type II supernova or the hyper eruption of a luminous blue variable 6 References Edit a b c Skrutskie Michael F et al 1 February 2006 The Two Micron All Sky Survey 2MASS The Astronomical Journal 131 2 1163 1183 Bibcode 2006AJ 131 1163S doi 10 1086 498708 ISSN 0004 6256 S2CID 18913331 van Driel W et al November 2016 NIBLES an H I census of stellar mass selected SDSS galaxies I The Nancay H I survey Astronomy amp Astrophysics 595 43 arXiv 1607 02787 Bibcode 2016A amp A 595A 118V doi 10 1051 0004 6361 201528048 S2CID 118623916 A118 a b c Ann H B et al 2015 A Catalog of Visually Classified Galaxies in the Local z 0 01 Universe The Astrophysical Journal Supplement Series 217 2 27 49 arXiv 1502 03545 Bibcode 2015ApJS 217 27A doi 10 1088 0067 0049 217 2 27 S2CID 119253507 Soderberg Alicia et al May 22 2008 An extremely luminous X ray outburst at the birth of a supernova Nature 453 7194 469 474 arXiv 0802 1712 Bibcode 2008Natur 453 469S doi 10 1038 nature06997 PMID 18497815 S2CID 453215 a b NASA IPAC Extragalactic Database Results for NGC 2770 Retrieved 2008 05 26 a b c Thone C C et al March 2017 SN 2015bh NGC 2770 s 4th supernova or a luminous blue variable on its way to a Wolf Rayet star Astronomy amp Astrophysics 599 29 arXiv 1606 09025 Bibcode 2017A amp A 599A 129T doi 10 1051 0004 6361 201629968 S2CID 56266352 A129 NGC 2770 SIMBAD Centre de donnees astronomiques de Strasbourg Retrieved 2020 09 07 Seligman Courtney NGC Objects NGC 2600 2649 Celestial Atlas Retrieved 2020 09 07 LBT Press Release First Binocular Light Archived from the original on 2011 07 25 Retrieved 2008 05 22 a b Thone Christina C et al June 2009 NGC 2770 A Supernova Ib Factory The Astrophysical Journal 698 2 1307 1320 arXiv 0807 0473 Bibcode 2009ApJ 698 1307T doi 10 1088 0004 637X 698 2 1307 S2CID 118697339 Catching the Light of a Baby Supernova Gemini Observatory Archived from the original on 23 August 2015 Retrieved 7 July 2015 List of Supernovae IAU Central Bureau for Astronomical Telegrams IAU Retrieved 19 February 2017 Further reading Edit Imposter or the Real Deal www spacetelescope org Retrieved 6 January 2020 External links Edit Media related to NGC 2770 at Wikimedia Commons Astronomers Witness Supernova s First Moments NASA Astronomy Picture of the Day Supernova Factory NGC 2770 18 January 2008 NGC 2770 on WikiSky DSS2 SDSS GALEX IRAS Hydrogen a X Ray Astrophoto Sky Map Articles and images Retrieved from https en wikipedia org w index php title NGC 2770 amp oldid 1129451395, wikipedia, wiki, book, books, library,

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