The stellar content of the ring in NGC 660

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.

arXiv comment5 pages, 10 figures. Accepted for publication in A&A

References in corpus (6)

• Maps of Dust IR Emission for Use in Estimation of Reddening and CMBR Foregrounds
• The Metallicity-Luminosity Relation, Effective Yields, and Metal Loss in Spiral and Irregular Galaxies
• Formation of polar ring galaxies
• Evolutionary Synthesis Of Simple Stellar Populations
• HII Region Abundances in the Polar Ring of NGC 2685
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Cited by in corpus (6)

• Chandra Survey of Nearby Highly-Inclined Disk Galaxies I: X-ray Measurements of Galactic Coronae
• The Formation of Polar Disk Galaxies
• CHANG-ES XXV: HI Imaging of Nearby Edge-on Galaxies -- Data Release 4
• The polar ring galaxy AM1934-563 revisited
• Compact stellar systems in the polar ring galaxies NGC 4650A and NGC 3808B: Clues to polar disk formation
• Study of Star-Forming Regions in the Peculiar Galaxies NGC 660, NGC 1512, NGC 4395, and NGC 4618