Stellar structure of the dwarf irregular galaxy DDO 216

Details Stellar structure of the dwarf irregular galaxy DDO 216 Stellar structure of the dwarf irregular galaxy DDO 216

Mar 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006astl...32..149t&link_type=abstract

Astronomy Letters, vol. 32, Issue 3, p.149-156

Astronomy and Astrophysics

Astronomy

5

Pacs Numbers 98.52.Wz

Scientific paper

Observations with the 6-mBTA telescope and archival Hubble Space Telescope data were used for the photometry of stars in the dwarf edge-on irregular galaxy DDO 216 (Peg DIG). We determined the change in the number density of stars of various ages along the major and minor axes of the galaxy. We found that the young stars of the galaxy concentrate toward the center, while its old stars, red giants, form an extended thick disk 5 kpc in diameter and 2 kpc in thickness around the galaxy.

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