NGC 6753

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Coordinates: Sky map 19h 11m 23.635s, −57° 02′ 58.44″

NGC 6753
NGC 6753 by Hubble Space Telescope.jpg
NGC 6753 taken by HST[1]
Observation data (J2000 epoch)
ConstellationPavo
Right ascension19h 11m 23.635s[2]
Declination−57° 02′ 58.44″[2]
Redshift0.010421±0.000087[3]
Helio radial velocity3,140 km/s[4]
Distance142 Mly (43.6 Mpc)[5]
Apparent magnitude (V)11.9[6]
Apparent magnitude (B)11.84[7]
Characteristics
Type(R)SA(r)b[8]
Mass~1013[5] M☉
Apparent size (V)2′.4 x 2′.1[6]
Other designations
NGC 6753, PGC 62870[7]

NGC 6753 is a massive[5] unbarred spiral galaxy,[5] seen almost exactly face-on, in the southern constellation of Pavo.[6] It was discovered by the English astronomer John Herschel on July 5, 1836.[9] The galaxy is located at a distance of 142 million light years from the Milky Way,[5] and is receding with a heliocentric radial velocity of 3,140 km/s.[4] It does not display any indications of a recent interaction with another galaxy or cluster.[5]

The morphological class of NGC 6753 is (R)SA(r)b,[8] indicating it is a spiral without an inner bar feature (SA), displaying outer (R) and inner (r) ring structures, and moderately wound spiral arms. It is being viewed nearly face-on with a galactic plane inclination by 30° to the line of sight from the Earth.[5] The galaxy is flocculent in appearance with a prominent central region.[8] The virial mass of the galaxy is ~1×1013 M☉, while the stellar mass is 3.2×1011 M☉. It has a star formation rate of 15.5 M☉·yr−1, which is confined to a radius of 15 kpc around the core.[5] The most active region of star formation is the inner ring.[10] It has a hot, X-ray luminous corona[6] that extends out to a radius of 50 kpc.[5]

Up to three supernovae have been discovered in this galaxy. The candidate type II-P supernova SN 2019mhm was discovered by the team on August 2, 2019. This transient was spotted close to maximum with a magnitude of 16.6, but showed no radio emission.[11][12] Supernova SN 2000cj was discovered by Robert Evans on May 14, 2000. It was positioned against a spiral arm at an offset 35″ east and 19″ south of the galaxy nucleus.[13] The spectrum showed this to be a type Ia supernova.[14] On May 13, 2005, type Ic supernovae SN 2005cb was spotted by the Brazilian Supernovae Search team.[15] It was offset 16″ west and 19″ north of the nucleus and reached a peak magnitude of 15.6.[16]

References[]

  1. ^ "More than meets the eye". www.spacetelescope.org. Retrieved 18 September 2017.
  2. ^ a b Skrutskie, Michael F.; et al. (1 February 2006). "The Two Micron All Sky Survey (2MASS)". The Astronomical Journal. 131: 1163–1183. Bibcode:2006AJ....131.1163S. doi:10.1086/498708. ISSN 0004-6256.
  3. ^ Corwin, H. G., Jr.; Emerson, D. (August 1982). "Optical spectra and redshifts for seventy-one galaxies". Monthly Notices of the Royal Astronomical Society. 200: 621–644. Bibcode:1982MNRAS.200..621C. doi:10.1093/mnras/200.3.621.
  4. ^ a b Tully, R. Brent; et al. (2016). "Cosmicflows-3". The Astronomical Journal. 152 (2): 21. arXiv:1605.01765. Bibcode:2016AJ....152...50T. doi:10.3847/0004-6256/152/2/50. 50.
  5. ^ a b c d e f g h i Bogdán, Ákos; et al. (November 2017). "Probing the Hot X-Ray Corona around the Massive Spiral Galaxy, NGC 6753, Using Deep XMM-Newton Observations". The Astrophysical Journal. 850 (1): 11. arXiv:1710.07286. Bibcode:2017ApJ...850...98B. doi:10.3847/1538-4357/aa9523. 98.
  6. ^ a b c d Streicher, Magda (October 2010). "Pavo - A Fanciful Bird". Monthly Notes of the Astronomical Society of South Africa. 69 (9 and 10): 183–189. Bibcode:2010MNSSA..69..183S.
  7. ^ a b "NGC 6753". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 18 September 2017.
  8. ^ a b c Seidel, M. K.; et al. (2015). "Dissecting galactic bulges in space and time – I. The importance of early formation scenarios versus secular evolution". Monthly Notices of the Royal Astronomical Society. 446 (3): 2837–2860. arXiv:1411.2969. Bibcode:2015MNRAS.446.2837S. doi:10.1093/mnras/stu2295. S2CID 118459544.
  9. ^ "Hubble Snaps Photo of Unusual Spiral Galaxy NGC 6753". Sci News. September 18, 2017. Retrieved 2022-01-06.
  10. ^ Cacho, R.; et al. (May 2015). Cenarro, A. J.; et al. (eds.). Kinematical decomposition of stellar populations in disc galaxies. Highlights of Spanish Astrophysics VIII, Proceedings of the XI Scientific Meeting of the Spanish Astronomical Society held on September 8-12, 2014, in Teruel, Spain. pp. 154–159. Bibcode:2015hsa8.conf..154C. ISBN 978-84-606-8760-3.
  11. ^ Kundu, Esha; Ryder, Stuart (August 2019). "Radio observations of SN 2019mhm". The Astronomer's Telegram (13040). Bibcode:2019ATel13040....1K.
  12. ^ "SN 2019mhm". Transient Name Server. Retrieved 2021-01-06.
  13. ^ Evans, R. O.; et al. (May 2000). Green, D. W. E. (ed.). "Supernova 2000cj in NGC 6753". IAU Circular. 7425 (1). Bibcode:2000IAUC.7425....1E.
  14. ^ Suntzeff, N.; Kundu, A. (May 2000). Green, D. W. E. (ed.). "Supernova 2000cj in NGC 6753". IAU Circular. 7428 (2). Bibcode:2000IAUC.7428....2S.
  15. ^ Turatto, M.; et al. (May 2005). Green, D. W. E. (ed.). "Supernovae 2005br, 2005bs, 2005cb". Central Bureau Electronic Telegrams. 156 (1). Bibcode:2005CBET..156....1T.
  16. ^ Barbon, R.; et al. (2008). "Asiago Supernova Catalogue". CDS/ADC Collection of Electronic Catalogues. Bibcode:2008yCat....1.2024B.

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