Publications (35)
The Araucaria Project: A study of the classical Cepheid in the eclipsing binary system OGLE LMC562.05.9009 in the Large Magellanic Cloud
Wolfgang Gieren, Bogumil Pilecki, Grzegorz Pietrzynski +26
We present a detailed study of the classical Cepheid in the double-lined, highly eccentric eclipsing binary system OGLE-LMC562.05.9009. The Cepheid is a fundamental mode pulsator w…
New low mass ratio contact binaries in the Catalina Sky Survey
P. E. Christopoulou, Eleni Lalounta, Athanasios Papageorgiou +3
We present the identification and photometric analysis of 30 new low mass ratio (LMR) totally eclipsing contact binaries found in Catalina Sky Survey data. The LMR candidates are i…
The La Silla Schmidt Southern Survey
Adam A. Miller, Natasha S. Abrams, Greg Aldering +75
We present the La Silla Schmidt Southern Survey (LS4), a new wide-field, time-domain survey to be conducted with the 1 m ESO Schmidt telescope. The 268 megapixel LS4 camera mosaics…
The southern leading and trailing wraps of the Sagittarius tidal stream around the globular cluster Whiting1
Julio A. Carballo-Bello, Jesus M. Corral-Santana, David Martinez-Delgado +6
We present a study of the kinematics of 101 stars observed with VIMOS around Whiting1, a globular cluster embedded in the Sagittarius tidal stream. The obtained velocity distributi…
The Horizontal Branch of NGC 1851: Constraints from its RR Lyrae Variables
Andrea Kunder, Maurizio Salaris, Santi Cassisi +5
We use the pulsational properties of the RR Lyrae variables in the globular cluster NGC 1851 to obtain detailed constraints of the various sub-stellar populations present along its…
A Superwind from Early Post-Red Giant Stars?
Noam Soker, Marcio Catelan, Robert T. Rood +1
We suggest that the gap observed at 20,000 K in the horizontal branches of several Galactic globular clusters is caused by a small amount of extra mass loss which occurs when stars…