Arp 146

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Arp 146
Arp146 - SDSS DR14.jpg
Observation data (J2000.0 epoch)
Constellation Cetus
Right ascension 00h 06m 44.4s
Declination −06° 38′ 09.0″
Redshift 0.075440
Heliocentric radial velocity 22,616 km/s
Distance 1.05 Gly
Characteristics
Type RING
Other designations
PGC 509 and PGC 510, Arp 146, VV 790

Arp 146 (known as PGC 509 and PGC 510) are a pair of interacting galaxies located 1.05 billion light-years away from Earth in the Cetus constellation. [1] [2] [3] It was discovered by Dewhirst and catalogued by Boris Vorontsov-Velyaminov as VV 790. [4] Under the Atlas of Peculiar Galaxies created by Halton Arp, they are categorized under galaxies that have associated rings. [5]

Arp 146 is classfied as an example of an empty ring galaxy. [6] [7] According to a study, one galaxy appears to have passed through another, leaving behind a ring formed from the bridge material and remnants of the nucleus. [8] The ring is said to be 18"x11" elliptical measuring 20 kpc in diameter but separated from its companion. [4]

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References

  1. ↑ "Your NED Search Results for ARP 146 NED01". ned.ipac.caltech.edu. Retrieved 2024-04-18.
  2. ↑ "NED Search Results for ARP 146 NED02". ned.ipac.caltech.edu. Retrieved 2024-04-18.
  3. ↑ Ford, Dominic. "Arp 146 (Galaxy cluster)". In-The-Sky.org. Retrieved 2024-04-18.
  4. 1 2 Spight, L.D; Schultz, A.B.; Colegrove, P.T.; DiSanti, M.A.; Frink, U. "CCD Photometry of the Ring Galaxy ARP 146". articles.adsabs.harvard.edu. Retrieved 2024-09-09.
  5. ↑ "Halton Arp's Atlas of Peculiar Galaxies". cseligman.com. Retrieved 2024-04-18.
  6. ↑ Higdon, James L. (March 1988). "Neutral hydrogen observations of ARP 144". The Astrophysical Journal. 326: 146. doi:10.1086/166075. ISSN   0004-637X.
  7. ↑ Madore, Barry F.; Nelson, Erica; Petrillo, Kristen (2009-03-25). "ATLAS AND CATALOG OF COLLISIONAL RING GALAXIES". The Astrophysical Journal Supplement Series. 181 (2): 572–604. doi:10.1088/0067-0049/181/2/572. ISSN   0067-0049.
  8. ↑ Schultz, A. B.; Spight, L. D.; Colegrove, P. T.; Disanti, M. A.; Fink, U. (1990-01-01). "Color maps of Arp 146". Evolution of the Universe of Galaxies. 10: 182–184. Bibcode:1990ASPC...10..182S.


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