On the radial distribution of white dwarfs in the Galactic globular cluster omega Cen

Bibcode
2008MmSAI..79..347C
Calamida, A.; Corsi, C. E.; Bono, G.; Stetson, P. B.; Prada Moroni, P. G.; Degl'Innocenti, S.; Ferraro, I.; Iannicola, G.; Koester, D.; Pulone, L.; Monelli, M.; Amico, P.; Buonanno, R.; Freyhammer, L. M.; Marchetti, E.; Nonino, M.; Romaniello, M.
Referencia bibliográfica

Memorie della Società Astronomica Italiana, v.79, p.347 (2008)

Fecha de publicación:
0
2008
Número de autores
17
Número de autores del IAC
0
Número de citas
8
Número de citas referidas
7
Descripción
We present deep and accurate photometry (F435W, F625W, F658N) of the Galactic Globular Cluster omega Cen collected with the Advanced Camera for Surveys (ACS) on board the Hubble Space Telescope (HST). We identified ≈ 6,500 white dwarf (WD) candidates and compared their radial distribution with that of Main Sequence (MS) stars. We found a mild evidence that young WDs ( 0.1 ≲ t ≲ 0.6 Gyr) are less centrally concentrated when compared to MS stars in the magnitude range 25 < F435W < 26.5.
Tipo
Sin árbitro

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