NGC 4709 explained

NGC 4709
Epoch:J2000
Type:E1[1]
Dist Ly:45Mpc
Group Cluster:Centaurus Cluster (Cen 45 subgroup)
H Radial V:4678 km/s
Z:0.015604
Appmag V:12.0
Size V:2.4 x 2.0
Constellation Name:Centaurus
Names:ESO 323-3, CCC 130, MCG -7-26-56, PGC 43423
Size:~39.14kpc (estimated)

NGC 4709 is an elliptical galaxy[2] located in the constellation Centaurus.[3] It is considered to be a member of the Centaurus Cluster[4] [5] and is the dominant member of a small group of galaxies known as "Cen 45"[6] which is currently merging with the main Centaurus Cluster (Cen 30)[7] even though the two subclusters' line of sight redshift velocities differ by about 1500 km/s.[8] NGC 4709 was discovered by astronomer James Dunlop on May 7, 1826.[9]

Distance estimates

Lucey et al. suggests that NGC 4709 and the Cen 45 subgroup lie at about the same distance as the main Centaurus Cluster[10] which is about 45Mpc.[11]

See also

Notes and References

  1. Web site: NASA/IPAC Extragalactic Database . Results for NGC 4709 . 2018-04-12.
  2. Web site: Your NED Search Results. ned.ipac.caltech.edu. 2018-04-13.
  3. Web site: Revised NGC Data for NGC 4709. spider.seds.org. 2018-04-13.
  4. Jerjen. H.. Dressler. A.. 1997-07-01. Studies of the Centaurus cluster. Astronomy and Astrophysics Supplement Series. en. 124. 1. 1–12. 10.1051/aas:1997355. 0365-0138. 1997A&AS..124....1J. free.
  5. Book: O'Meara, Stephen James. Deep-Sky Companions: Southern Gems. 2013-04-08. Cambridge University Press. 978-1-139-85154-1. 460. 2013dcsg.book.....O.
  6. Lucey. J. R.. Currie. Malcom J.. Dickens. R. J.. 1986-07-01. The Centaurus cluster of galaxies – II. The bimodal velocity structure. Monthly Notices of the Royal Astronomical Society. en. 221. 2. 453–472. 10.1093/mnras/221.2.453. 0035-8711. 1986MNRAS.221..453L. free.
  7. Churazov. E.. Gilfanov. M.. Forman. W.. Jones. C.. 1999. Evidence for Merging in the Centaurus Cluster. The Astrophysical Journal. en. 520. 1. 105. 10.1086/307421. 0004-637X. astro-ph/9802166. 1999ApJ...520..105C. 18552647 .
  8. Walker. S. A.. Fabian. A. C.. Sanders. J. S.. 2013-11-11. An XMM–Newton view of the merging activity in the Centaurus cluster. Monthly Notices of the Royal Astronomical Society. en. 435. 4. 3221–3230. 10.1093/mnras/stt1515. free . 0035-8711. 1308.2090. 2013MNRAS.435.3221W.
  9. Web site: New General Catalog Objects: NGC 4700 - 4749. cseligman.com. en-US. 2018-04-11.
  10. Lucey. J. R.. Currie. Malcolm J.. Dickens. R. J.. 1986-10-01. The Centaurus cluster of galaxies – III. Its structure and the distribution of the different galaxy types. Monthly Notices of the Royal Astronomical Society. en. 222. 3. 427–447. 10.1093/mnras/222.3.427. 0035-8711. 1986MNRAS.222..427L. free.
  11. Book: New horizons in globular cluster astronomy : proceedings of a conference held at Università di Padova, Padova, Italy, 24-28 June, 2002. 2003. Astronomical Society of the Pacific. King, Ivan R., Piotto, G. (Giampaolo). 978-1583811436. 1st. San Francisco, Calif.. 54022703.

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