NGC 5775
Hubble Space Telescope image of NGC 5775, taken using the Advanced Camera for Surveys
Observation data (J2000 epoch)
ConstellationVirgo
Right ascension14h 53m 57.653s[1]
Declination+03° 32′ 40.10″[1]
Redshift0.005607[2]
Heliocentric 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).[6]

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.[7] Faint optical emission as well as radio continuum emission are also present along the bridges.[8] It is possible that star formation is occurring between the galaxies.[7]

This system may be in the early stages of a merger.[8]

References

  1. 1 2 3 Skrutskie, Michael F.; Cutri, Roc M.; Stiening, Rae; Weinberg, Martin D.; Schneider, Stephen E.; Carpenter, John M.; Beichman, Charles A.; Capps, Richard W.; Chester, Thomas; Elias, Jonathan H.; Huchra, John P.; Liebert, James W.; Lonsdale, Carol J.; Monet, David G.; Price, Stephan; Seitzer, Patrick; Jarrett, Thomas H.; Kirkpatrick, J. Davy; Gizis, John E.; Howard, Elizabeth V.; Evans, Tracey E.; Fowler, John W.; Fullmer, Linda; Hurt, Robert L.; Light, Robert M.; Kopan, Eugene L.; Marsh, Kenneth A.; McCallon, Howard L.; Tam, Robert; Van Dyk, Schuyler D.; Wheelock, Sherry L. (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. 1 2 3 "NED results for object NGC 5775". National Aeronautics and Space Administration / Infrared Processing and Analysis Center. Retrieved 4 February 2017.
  3. 1 2 "NGC 5775". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 4 February 2017.
  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. arXiv:0807.3587. Bibcode:2008MNRAS.390...59L. doi:10.1111/j.1365-2966.2008.13749.x. S2CID 15029716.
  5. ↑ "The Virgo III Groups". Atlas of the Universe. Retrieved 2010-11-27.
  6. ↑ Transient Name Server entry for SN 1996ae. Retrieved 30 March 2023.
  7. 1 2 Irwin, Judith; Caron, Bryan (2003). "The NGC 5775/4 Interacting System". In Shlosman, Isaac (ed.). Mass-Transfer Induced Activity in Galaxies. Cambridge University Press. p. 362. ISBN 978-0-521-54330-9.
  8. 1 2 Irwin, Judith A. (1994). "Arcs and bridges in the interacting galaxies NGC 5775/NGC 5774". The Astrophysical Journal. 429 (2): 618–633. Bibcode:1994ApJ...429..618I. doi:10.1086/174349.


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