Deep NIR photometry of the globular 47Tuc.

Bibcode
2010MSAIS..14..139T
Troisi, L.; Bono, G.; Dall'Ora, M.; Calamida, A.; Di Cecco, A.; Iannicola, G.; Sanna, N.; Stetson, P. B.; Buonanno, R.; Caputo, F.; Corsi, C. E.; Degl'Innocenti, S.; Ferraro, I.; Nonino, M.; Monelli, M.; Prada Moroni, P. G.; Romaniello, M.; Walker, A. R.; Zoccali, M.
Referencia bibliográfica

Memorie della Società Astronomica Italiana Supplement, v.14, p.139 (2010)

Fecha de publicación:
0
2010
Número de autores
19
Número de autores del IAC
0
Número de citas
1
Número de citas referidas
1
Descripción
We performed accurate and deep NIR (J,K) photometry of the Globular Cluster (GC) 47Tuc using data collected with SOFI at New Technology Telescope (NTT) (ESO, La Silla). Data cover a significant fraction of the innermost regions of the cluster and the Color Magnitude Diagram (CMD) ranges from the red HB down to the lower Main Sequence (MS). In the faint magnitude limit, we clearly detected the knee, along the MS, caused by the Collision Induced Absorption. We found that this feature is located at J˜ 18.45 and J-K˜ 0.68 mag.
Tipo
Sin árbitro

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