Final published version
Research output: Contribution to Journal/Magazine › Journal article
Research output: Contribution to Journal/Magazine › Journal article
}
TY - JOUR
T1 - The luminosity function of Palomar 5 and Its tidal tails
AU - Koch, Andreas
AU - Odenkirchen, Michael
AU - Grebel, E. K.
AU - Martinez-Delgado, D.
AU - Caldwell, John A. R.
PY - 2004
Y1 - 2004
N2 - We present the main sequence luminosity function of the tidally disrupted globular cluster Palomar 5 and its tidal tails. For this work we analyzed imaging data obtained with the Wide Field Camera at the INT (La Palma) and data from the Wide Field Imager at the MPG/ESO 2.2 m telescope at La Silla down to a limiting magnitude of approximately 24.5 mag in B. Our results indicate that preferentially fainter stars were removed from the cluster so that the LF of the cluster's main body exhibits a significant degree of flattening compared to other GCs. This is attributed to its advanced dynamical evolution. The LF of the tails is, in turn, enhanced with faint, low mass stars, which we interpret as a consequence of mass segregation in the cluster.
AB - We present the main sequence luminosity function of the tidally disrupted globular cluster Palomar 5 and its tidal tails. For this work we analyzed imaging data obtained with the Wide Field Camera at the INT (La Palma) and data from the Wide Field Imager at the MPG/ESO 2.2 m telescope at La Silla down to a limiting magnitude of approximately 24.5 mag in B. Our results indicate that preferentially fainter stars were removed from the cluster so that the LF of the cluster's main body exhibits a significant degree of flattening compared to other GCs. This is attributed to its advanced dynamical evolution. The LF of the tails is, in turn, enhanced with faint, low mass stars, which we interpret as a consequence of mass segregation in the cluster.
M3 - Journal article
VL - 327
SP - 333
EP - 336
JO - ASP Conference Series
JF - ASP Conference Series
SN - 1050-3390
ER -