Astronomy:NGC 4753

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Short description: Galaxy in the constellation Virgo
NGC 4753
SDSS image NGC 4753.jpeg
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]

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] It is a member of the NGC 4753 Group of galaxies, which is a member of the Virgo II Groups, a series of galaxies and galaxy clusters strung out from the southern edge of the Virgo Supercluster.[6]

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 a 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 billion 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 of two supernovae, SN 1965I and SN 1983G.[11][12]

SN 1965I

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

SN 1983G

On April 4, 1983, Astronomer Robert Evan discovered a type Ia supernova known as SN 1983g in NGC 4753.[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]

See also

References

  1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 "NASA/IPAC Extragalactic Database". Results for NGC 4753. http://nedwww.ipac.caltech.edu/. 
  2. ↑ "Your NED Search Results". http://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=NGC+4753&extend=no&hconst=73&omegam=0.27&omegav=0.73&corr_z=1&out_csys=Equatorial&out_equinox=J2000.0&obj_sort=RA+or+Longitude&of=pre_text&zv_breaker=30000.0&list_limit=5&img_stamp=YES. 
  3. ↑ Rojas, Sebastián García. "Galaxy NGC 4753 - Lenticular Galaxy in Virgo Constellation · Deep Sky Objects Browser" (in en). https://dso-browser.com/deep-sky/5831/ngc-4753/galaxy. 
  4. ↑ "New General Catalog Objects: NGC 4750 - 4799" (in en-US). http://cseligman.com/text/atlas/ngc47a.htm#4753. 
  5. ↑ 5.0 5.1 "Detailed Object Classifications". http://ned.ipac.caltech.edu/cgi-bin/NEDatt?objname=NGC+4753. 
  6. ↑ 6.0 6.1 6.2 6.3 "The Virgo III Groups". Atlas of the Universe. http://www.atlasoftheuniverse.com/galgrps/viriii.html. 
  7. ↑ 7.0 7.1 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". The Astronomical Journal 104: 1339–1348. doi:10.1086/116323. Bibcode: 1992AJ....104.1339S. http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?1992AJ....104.1339S&data_type=PDF_HIGH&whole_paper=YES&type=PRINTER&filetype=.pdf. 
  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. doi:10.1086/300963. Bibcode: 1999AJ....118..785D. 
  9. ↑ "New twist in the old search for dark matter. - Free Online Library". https://www.thefreelibrary.com/New+twist+in+the+old+search+for+dark+matter.-a012832875. 
  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 453 (4): 4422–4431. doi:10.1093/mnras/stv2015. Bibcode: 2015MNRAS.453.4421C. 
  11. ↑ "Host Galaxies – The Open Supernova Catalog" (in en-US). https://sne.space/statistics/host-galaxies/. 
  12. ↑ 12.0 12.1 "List of supernovae sorted by host name". http://rochesterastronomy.org/snimages/snhnameall.html. 
  13. ↑ "SN1965I - The Open Supernova Catalog" (in en-US). https://sne.space/sne/SN1965I/. 
  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. ↑ 15.0 15.1 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. doi:10.1093/mnras/sts557. Bibcode: 2013MNRAS.429.2677K. 

External links



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