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Abell 1689 is a galaxy cluster in the constellation Virgo over 2.3 billion light-years away.

Abell 1689
Hubble view of galaxy cluster Abell 1689. It combines both visible and infrared data, with a combined exposure time of over 34 hours.[1]
Observation data (Epoch J2000)
Constellation(s)Virgo
Right ascension13h 11m 34.2s[2]
Declination−01° 21′ 56″
Richness class4[3]
Bautz–Morgan classificationII-III[3]
Redshift0.1832[2]
Distance
(co-moving)		754 Mpc (2,459 Mly) h−1
0.705[2]
X-ray flux(14.729 ± 8.1%)×10−11 erg s−1 cm−2 (0.1–2.4 keV)[2]
See also: Galaxy group, Galaxy cluster, List of galaxy groups and clusters

Details


Abell 1689 is one of the biggest and most massive galaxy clusters known and acts as a gravitational lens, distorting the images of galaxies that lie behind it.[4] It has the largest system of gravitational arcs ever found.[5]

Abell 1689 shows over 160,000 globular clusters, the largest population ever found.[6]

There is evidence of merging and gases in excess of 100 million degrees.[5] The very large mass of this cluster makes it useful for the study of dark matter and gravitational lensing.[7][8]

At the time of its discovery in 2008, one of the lensed galaxies, A1689-zD1, was the most distant galaxy found.[9][10]




See also



References


  1. "New Hubble image of galaxy cluster Abell 1689". ESA/Hubble Press Release. Retrieved 14 September 2013.
  2. "NASA/IPAC Extragalactic Database". Results for Abell 1689. Retrieved 2012-03-17.
  3. Abell, George O.; Corwin, Harold G., Jr.; Olowin, Ronald P. (May 1989). "A catalog of rich clusters of galaxies" (PDF). Astrophysical Journal Supplement Series. 70 (May 1989): 1–138. Bibcode:1989ApJS...70....1A. doi:10.1086/191333. ISSN 0067-0049. Retrieved March 12, 2012.
  4. Falcon-Lang, Howard (19 August 2010). "Fate of Universe revealed by galactic lens". BBC News. BBC. Archived from the original on 19 August 2010. Retrieved 19 August 2010.
  5. "Purple Haze, Part Deux". NASA. 12 September 2008. Retrieved 19 September 2012.
  6. "Globular clusters within Abell 1689". HUBBLE/ESA. 12 September 2013. Retrieved 19 September 2013.
  7. "Detailed Dark Matter Map Yields Clues to Galaxy Cluster Growth". NASA. 11 December 2010. Retrieved 19 September 2012.
  8. Diego, Jose M.; Broadhurst, T.; Benitez, N.; Umetsu, K.; Coe, D.; Sendra, I.; et al. (2014). "A Free-Form Lensing Grid Solution for A1689 with New Multiple Images". MNRAS. 446 (1): 683–704. arXiv:1402.4170. Bibcode:2015MNRAS.446..683D. doi:10.1093/mnras/stu2064.
  9. "Astronomers Eye Ultra-Young, Bright Galaxy in Early Universe". nasa.gov. 2008-02-12. Retrieved 2008-02-25.
  10. "Astronomers Uncover One of the Youngest and Brightest Galaxies in the Early Universe". Space Telescope Science Institute Baltimore, Md. / nasa.gov. 2008-02-12. Archived from the original on 17 February 2008. Retrieved 2008-02-25.


Wikimedia Commons has media related to Abell 1689.


На других языках

[de] Abell 1689

Abell 1689 ist ein von der Erde 2,2 Milliarden Lichtjahre (670 Mpc) entfernter Galaxienhaufen im Sternbild Jungfrau, der eines der massivsten bekannten Objekte des Universums ist.
- [en] Abell 1689

[ru] Abell 1689

Abell 1689 — скопление галактик в созвездии Девы. Это одно из самых больших и самое массивное из известных скоплений галактик[3], является гравитационной линзой, искажая свет галактик, находящихся за ним. Само скопление расположено на расстоянии 2,459 миллиарда световых лет (654 мегапарсек)[1] от Земли.


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