Coordinates and 2MASS and OGLE identifications for all stars in Arp’s 1965 finding chart for Baade’s Window⋆
Lund ObservatoryDepartment of Astronomy and Theoretical Physics, Box 43, 22100 Lund, Sweden
e-mail: email@example.com; firstname.lastname@example.org
2 Department of Astronomy, Ohio State University, 140 W. 18th Avenue, Columbus, OH 43210, USA
Received: 4 March 2011
Accepted: 23 March 2011
Aims. We seek to provide 2MASS and OGLE identifications and coordinates for all stars in the finding chart published by Arp (1965, ApJ, 141, 43). This chart covers the low extinction area around NGC 6522, also known as Baade’s window, at coordinates (l,b) = (1.02, −3.92).
Methods. A cross correlation, using numerical techniques, was performed between a scan of the original finding chart from Arp and 2MASS and OGLE-II images and stellar coordinates.
Results. We provide coordinates for all stars in Arp’s finding chart and 2MASS and OGLE identifications wherever possible. Two identifications in quadrant II do not appear in the original finding chart.
Key words: catalogs / Galaxy: bulge / globular clusters: individual: NGC 6522
Table 1 is only available in electronic form at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (18.104.22.168) or via http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/529/A104
© ESO, 2011