Astronomy:UGCA 292
From HandWiki
| UGCA 292 | |
|---|---|
 Image of UGCA 292 by the Hubble Space Telescope | |
| Observation data | |
| Constellation | Canes Venatici |
| Right ascension | 12h 38m |
| Declination | +32° 45' |
| Distance | 10 million ly |
| Characteristics | |
| Type | Dwarf irregular |
| Notable features | Gas rich and metal poor |
| Other designations | |
| CVn I dwA | |
UGCA 292 (also known as CVn l dwA) is an extremely metal-poor irregular dwarf galaxy being the third lowest metallicity galaxy discovered. It also has the record for being of the nearest metal-poor galaxies known. It is located at a relatively nearby distance of 3.1 mpc in the constellation of Canes Venatici.[1][2]
The galaxy is unevolved with lots of gas making up a significant fraction the galaxies mass and the low metallicity.[3]
Scientific importance
Due to its close distance to our galaxy (the Milky Way), it provides a unique opportunity to study gas rich galaxies with high star formation but low metallicity. The close proximity also makes it possible to resolve stellar populations.[1]
References
- ↑ 1.0 1.1 van Zee, Liese (July 2001). "The Stellar Population of UGCA 292, An Extreme Low Metallicity Galaxy" (in en). HST Proposal: 9044. Bibcode: 2001hst..prop.9044V. https://ui.adsabs.harvard.edu/abs/2001hst..prop.9044V/abstract.
- ↑ Ford, Dominic. "UGCA 292 (Galaxy)" (in en). https://in-the-sky.org//data/object.php?id=UGCA_292.
- ↑ van Zee, Liese (November 2000). "Discovery of an Extremely Metal-Poor Galaxy: Optical Spectroscopy of UGCA 292" (in en). The Astrophysical Journal 543 (1): L31–L34. doi:10.1086/318176. ISSN 0004-637X. Bibcode: 2000ApJ...543L..31V. https://ui.adsabs.harvard.edu/abs/2000ApJ...543L..31V/abstract.
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