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The stellar content of the ring in NGC 660
- Source :
- Astronomy & Astrophysics. 421:833-837
- Publication Year :
- 2004
- Publisher :
- EDP Sciences, 2004.
-
Abstract
- We present the results of stellar photometry of the polar-ring galaxy NGC 660 using the Hubble Space Telescope's archival data obtained with the Wide Field Planetary Camera 2. The final list of the resolved stars contains 550 objects, a considerable part of which are blue and red supergiants belonging to the polar ring. The analysis of the Colour Magnitude Diagram for polar ring stars shows that it is best represented by the isochrones with metallicity Z = 0.008. The process of star formation in the polar ring was continuous and the age of the youngest detected stars is about 7 Myr.<br />5 pages, 10 figures. Accepted for publication in A&A
- Subjects :
- Physics
Star formation
Metallicity
Astrophysics (astro-ph)
FOS: Physical sciences
Astronomy and Astrophysics
Astrophysics::Cosmology and Extragalactic Astrophysics
Astrophysics
Galaxy
Photometry (optics)
Stars
Space and Planetary Science
Hubble space telescope
Astrophysics::Solar and Stellar Astrophysics
Polar
Red supergiant
Astrophysics::Earth and Planetary Astrophysics
Astrophysics::Galaxy Astrophysics
Subjects
Details
- ISSN :
- 14320746 and 00046361
- Volume :
- 421
- Database :
- OpenAIRE
- Journal :
- Astronomy & Astrophysics
- Accession number :
- edsair.doi.dedup.....27b19767001e9f8ace68a0944c9511db