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.
Bibliographical reference

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

Advertised on:
0
2010
Number of authors
19
IAC number of authors
0
Citations
1
Refereed citations
1
Description
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.
Type
Non-refereed

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