Astronomy:NGC 5775

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NGC 5775
NGC 5775 imaged by the Hubble Space Telescope, using the Advanced Camera for Surveys
Observation data (J2000 epoch)
ConstellationVirgo
Right ascension 14h 53m 57.653s[1]
Declination+03° 32′ 40.10″[1]
Redshift0.005607[2]
Helio radial velocity1681[2]
Distance66.33 ± 13.31 Mly (20.338 ± 4.081 Mpc)[2]
Group or clusterVirgo Cluster
Apparent magnitude (V)11.34
Apparent magnitude (B)13.0
Characteristics
TypeSbc[3]
Apparent size (V)3.967' × 0.793'[1]
Other designations
UGC 9579, MCG+01-38-014, PGC 53247[3]

NGC 5775 is a spiral galaxy, a member of the Virgo Cluster, that lies at a distance of about 70 million light-years. Although the spiral is tilted away from us, with only a thin sliver in view, such a perspective can be advantageous for astronomers. For instance, astronomers have previously used the high inclination of this spiral to study the properties of the halo of hot gas[4] that is visible when the galaxy is observed at X-ray wavelengths. It is a member of the NGC 5775 Group of galaxies, itself one of the Virgo III Groups strung out to the east of the Virgo Supercluster of galaxies.[5]

One supernova has been observed in NGC 5775: SN 1996ae (type IIn, mag. 16.5) was discovered by A. Vagnozzi, G. Piermarini, and V. Russo on 21 May 1996.[6][7]

Interaction with NGC 5774

NGC 5775 is interacting with the nearby galaxy NGC 5774 in the form of two connecting H I bridges through which the gas is travelling from NGC 5774 to NGC 5775.[8] Faint optical emission as well as radio continuum emission are also present along the bridges.[9] It is possible that star formation is occurring between the galaxies.[8]

This system may be in the early stages of a merger.[9]

References

  1. ↑ 1.0 1.1 1.2 Skrutskie, Michael F.; Cutri, Roc M.; Stiening, Rae; Weinberg, Martin D.; Schneider, Stephen E.; Carpenter, John M.; Beichman, Charles A.; Capps, Richard W. et al. (1 February 2006). "The Two Micron All Sky Survey (2MASS)". The Astronomical Journal 131 (2): 1163–1183. doi:10.1086/498708. ISSN 0004-6256. Bibcode: 2006AJ....131.1163S. 
  2. ↑ 2.0 2.1 2.2 "NED results for object NGC 5775". National Aeronautics and Space Administration / Infrared Processing and Analysis Center. http://nedwww.ipac.caltech.edu/cgi-bin/nph-objsearch?objname=NGC+5775&extend=no&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. ↑ 3.0 3.1 "NGC 5775". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+5775. 
  4. ↑ Li, Jiang-Tao; Li, Zhiyuan; Wang, Q. Daniel; Irwin, Judith A.; Rossa, Joern (October 2008). "Chandra Observation of the Edge-on Spiral NGC 5775: Probing the Hot Galactic Disk/Halo Connection". Monthly Notices of the Royal Astronomical Society 390 (1): 59–70. doi:10.1111/j.1365-2966.2008.13749.x. Bibcode: 2008MNRAS.390...59L. 
  5. ↑ "The Virgo III Groups". Atlas of the Universe. http://www.atlasoftheuniverse.com/galgrps/viriii.html. 
  6. ↑ Vagnozzi, A.; Piermarini, G.; Russo, V.; Nakamura, A.; Hurst, G.; Armstrong, M.; Strange, D.; Platt, T. (1996). "Supernova 1996ae in NGC 5775". International Astronomical Union Circular (6409): 1. Bibcode: 1996IAUC.6409....1V. http://www.cbat.eps.harvard.edu/iauc/06400/06409.html#Item1. 
  7. ↑ "SN 1996ae". IAU. https://www.wis-tns.org/object/1996ae. 
  8. ↑ 8.0 8.1 Irwin, Judith; Caron, Bryan (2003). "The NGC 5775/4 Interacting System". in Shlosman, Isaac. Mass-Transfer Induced Activity in Galaxies. Cambridge University Press. p. 362. ISBN 978-0-521-54330-9. https://books.google.com/books?id=lyK11EeF3DoC&pg=PA362. 
  9. ↑ 9.0 9.1 Irwin, Judith A. (1994). "Arcs and bridges in the interacting galaxies NGC 5775/NGC 5774". The Astrophysical Journal 429 (2): 618–633. doi:10.1086/174349. Bibcode: 1994ApJ...429..618I. 




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