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From Wikipedia, the free encyclopedia

SDSSCGB 10189
Hubble Space Telescope image of SDSSCGB 10189
Observation data
ConstellationBoötes
Right ascension230.50 degrees
Declination50.17 degrees
Redshift0.074000
Heliocentric radial velocity21,310 km/s
Distance1.045 Gly (320.4 Mpc)
Notable featuresInteracting galaxies
Other designations
SDSSCGB 10189, IRAS 15205+5021, MLCG 1320, 2MASS J15220252+5010189, 2MASX J15220246+5010185, PGC 84569, NVSS J152201+5010030, SBS 1520+503, SDSS J152201.60+501028.6

SDSSCGB 10189 is a trio of interacting galaxies that is located in the constellation of Boötes.[1] They are located 1.04 billion light-years away from the Solar System[2] and are gravitationally interacting.[3]

Characteristics

The three galaxies involved in the interaction, are PGC 84569 or known as SBS 1520+503 and IRAS 15205+5021,[4] 2MASX J15220246+5010185 or PGC 3845255[5] and SDSS J152202.25+501027.9 or PGC 4530597.[6] All of them have distorted appearances with strands of dust and gas running between them.[7] It is also likely that their interactions cause periods of extreme star formation thus making it into an luminous infrared galaxy.[8] SDSSCGB 10189 is set on a collision course, in which the result will be a single larger galaxy.[7]

This trio is an exceptionally rare combination in the close proximity of each of the galaxies to one another: they are lying only 50,000 light-years apart from one another to the point they are considered close galactic neighbors.[7] To the left of the interacting trio, a foreground dimmer spiral galaxy called PGC 2365567[9] is located which appears to float serenely along the collision.[7]

This observation was conducted to help astronomers understand the origin of massive galaxies. They are called brightest cluster galaxies and suspected they can be formed through merging of large gas-rich galaxies.[7] By looking at SDSSCGB 10189, it shows how galaxies undergo changes through merging and transform over time from disk galaxies to spheroids.[10][11]

References

  1. ^ Guide, Universe (19 February 2023). "SDSS CGB 10189 Facts". Universe Guide. Retrieved 2024-04-29.
  2. ^ "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2024-04-29.
  3. ^ "Galaxies - Merging and Interacting". www.cfa.harvard.edu. Retrieved 2024-04-29.
  4. ^ "HyperLeda -object description for PGC 84569". atlas.obs-hp.fr. Retrieved 2024-04-29.
  5. ^ "HyperLeda -object description for 2MASX J15220246+5010185". atlas.obs-hp.fr. Retrieved 2024-04-29.
  6. ^ "HyperLeda -object description for SDSS J152202.25+501027.9". atlas.obs-hp.fr. Retrieved 2024-04-29.
  7. ^ a b c d e [email protected]. "Galactic Crash Course". www.spacetelescope.org. Retrieved 2024-04-29.
  8. ^ Pearson, W. J.; Wang, L.; Alpaslan, M.; Baldry, I.; Bilicki, M.; Brown, M. J. I.; Grootes, M. W.; Holwerda, B. W.; Kitching, T. D.; Kruk, S.; Tak, F. F. S. van der (2019-11-01). "Effect of galaxy mergers on star-formation rates". Astronomy & Astrophysics. 631: A51. arXiv:1908.10115. Bibcode:2019A&A...631A..51P. doi:10.1051/0004-6361/201936337. ISSN 0004-6361.
  9. ^ "HyperLeda -object description for PGC 2365567". atlas.obs-hp.fr. Retrieved 2024-04-29.
  10. ^ Nguyen, Thinh. "Alchemy of Galaxies – How galaxies merge and transform over time". Astrobites. Retrieved 2024-04-29.
  11. ^ Martin, G.; Kaviraj, S.; Devriendt, J. E. G.; Dubois, Y.; Pichon, C. (2018-10-21). "The role of mergers in driving morphological transformation over cosmic time". Monthly Notices of the Royal Astronomical Society. 480 (2): 2266–2283. arXiv:1807.08761. doi:10.1093/mnras/sty1936. ISSN 0035-8711.
This page was last edited on 16 May 2024, at 00:36
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