NGC 4753

NGC 4753 is a lenticular galaxy located about 60 million light-years away[2] in the constellation of Virgo.[3] NGC 4753 was discovered by astronomer William Herschel on February 22, 1784.[4] It is notable for having distinct dust lanes that surround its nucleus.[5] The galaxy is a member of the Virgo II Groups, an extension of the Virgo Cluster.[6]

NGC 4753
SDSS image of NGC 4753; Notice the distinct dust lanes surrounding the nucleus
Observation data (J2000 epoch)
ConstellationVirgo
Right ascension 12h 52m 22.1s[1]
Declination−01° 11′ 59″[1]
Redshift0.003879/1163 km/s[1]
Distance60,530,000 ly[1]
Group or clusterNGC 4753 Group
Apparent magnitude (V)10.85[1]
Characteristics
TypeS0 pec[1]
Size~106,100 ly (estimated)[1]
Apparent size (V)6.0 x 2.8[1]
Other designations
PGC 43671, UGC 8009[1]

Physical characteristics

The distribution of dust in NGC 4753 lies in an inclined disk wrapped several times around the nucleus. The material in the disk may have been accreted from the merger of gas rich dwarf galaxy. Over several orbital periods, the accreted material eventually smeared out into a disk. Differential precession that occurred after the accretion event caused the disk to twist. Eventually, the disk settled into a fixed orientation with respect to the galaxy. The age of the disk is estimated to be around half a billon to a billion years.[7]

Another explanation suggests that the dust in NGC 4753 originated from red giant stars in the galaxy.[8]

Dark Matter

Analysis of the twisted disk in NGC 4753 by Steiman-Cameron et al. revealed that most of the mass in the galaxy lies in a slightly flattened spherical halo of Dark Matter.[7][9]

Globular clusters

NGC 4753 has an estimated population of 1070 ± 120 globular clusters.[10]

Supernovae

NGC 4753 has been the host to two supernovae, SN 1965I and SN 1983G.[11][12]

SN 1965I

On June 18, 1965 a type 1a supernova was discovered in NGC 4753.[12][13]

SN 1983G

Astronomer Robert Evan discovered a type 1a supernova known as SN 1983g in NGC 4753. The supernova was discovered on April 4, 1983.[14]

Group Membership

NGC 4753 is a member of its own galaxy group, known as the NGC 4753 Group.[15][6][5] The NGC 4753 Group is located near the southern edge of the Virgo Cluster.[6] The group, along with other groups of galaxies form part of a filament that extends off from the southern border of the Virgo Cluster that is called the Virgo II Groups.[15][6]

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See also

References
  1. "NASA/IPAC Extragalactic Database". Results for NGC 4753. Retrieved 2017-10-03.
  2. "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2017-10-04.
  3. Rojas, Sebastián García. "Galaxy NGC 4753 - Lenticular Galaxy in Virgo Constellation · Deep Sky Objects Browser". DSO Browser. Retrieved 2017-10-04.
  4. "New General Catalog Objects: NGC 4750 - 4799". cseligman.com. Retrieved 2017-10-04.
  5. "Detailed Object Classifications". ned.ipac.caltech.edu. Retrieved 2017-10-04.
  6. "The Virgo II Groups". www.atlasoftheuniverse.com. Retrieved 2017-10-04.
  7. Steiman-Cameron, Thomas Y.; Kormendy, John; Durisen, Richard H. (18 June 1992). "THE REMARKABLE TWISTED DISK OF NGC 4753 AND THE SHAPES OF GALACTIC HALOS" (PDF). The Astronomical Journal. 104: 1339–1348. Bibcode:1992AJ....104.1339S. doi:10.1086/116323.
  8. DEWANGAN, G. C.; SINGH, K. P.; BHAT, P. N. (11 May 1999). "DUST PROPERTIES OF NGC 4753". The Astronomical Journal. 118 (2): 785–796. arXiv:astro-ph/9905352. Bibcode:1999AJ....118..785D. doi:10.1086/300963.
  9. "New twist in the old search for dark matter. - Free Online Library". www.thefreelibrary.com. Retrieved 2017-10-26.
  10. Caso, Juan Pablo; Bassino, Lilia.; Gomez, Matıas (1 September 2015). "Footprints in the sand: What can globular clusters tell us about NGC 4753 past?". Monthly Notices of the Royal Astronomical Society. 000 (4): 4422–4431. arXiv:1508.07653. Bibcode:2015MNRAS.453.4421C. doi:10.1093/mnras/stv2015.
  11. "Host Galaxies – The Open Supernova Catalog". sne.space. Retrieved 2017-10-04.
  12. "List of supernovae sorted by host name". Bright Supernova - Archives. Retrieved 2017-10-03.
  13. "SN1965I - The Open Supernova Catalog". sne.space. Retrieved 2017-10-04.
  14. BUTA, RONALD J.; CORWIN, JR., HAROLD G.; OPAL, CHET B. (4 December 1984). "SUPERNOVA 1983g AND THE DISTANCE TO NGC 4753". Publications of the Astronomical Society of the Pacific. 97: 229–235. doi:10.1086/131522.
  15. Karachentsev, I. D.; Nasonova, O. G. (3 December 2012). "Intense look at Virgo Southern Extension". Monthly Notices of the Royal Astronomical Society. 429 (3): 2677–2686. arXiv:1212.0840. Bibcode:2013MNRAS.429.2677K. doi:10.1093/mnras/sts557.


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