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Long Period Variables in Globular Clusters and the Galactic Bulge: Their Dependence on Metallicity
Jay A. Frogel, Patricia A. Whitelock
We derive the frequency of occurrence of luminous long period variables (LLPVs) in globular clusters and in the Baade's Window field of the Galactic bulge. LLPVs occur only in clus…
Infrared Observations of Large Amplitude Pulsating Stars
Patricia A. Whitelock
Our understanding of large amplitude pulsating stars and their status in stellar evolution is briefly reviewed. The paper then describes the near-infrared light curves of various a…
Obscured Asymptotic Giant Branch stars in the Magellanic Clouds IV. Carbon stars and OH/IR stars
Jacco Th. van Loon, Albert A. Zijlstra, Patricia A. Whitelock +6
We present N-band photometry for a sample of 21 dust- enshrouded AGB stars in the Large Magellanic Cloud, and three additional sources in the Small Magellanic Cloud. Together with…
Galactic Kinematics of Cepheids from Hipparcos Proper Motions
Michael Feast, Patricia Whitelock
The Hipparcos proper motions of 220 galactic Cepheids, together with relevant ground-based photometry, have been analysed. The effects of galactic rotation are very clearly seen. M…
Hipparcos Parallaxes and Proper Motions of Cepheids and their Implications
M. W. Feast, P. A. Whitelock
A summary is given of an analysis of the Hipparcos trigonometrical parallaxes and proper motions of classical Cepheids. It is possible for the first time to derive zero-points for…
The Luminosities and Diameters of Mira Variables from Hipparcos Parallaxes
P. A. Whitelock, F. van Leeuwen, M. W. Feast
Hipparcos trigonometrical parallaxes of Mira-type variables have been combined with ground-based angular diameter measurements to derive linear diameters. Of eight stars with groun…