An RRAB, an RRC and a BL Her Star in the MACHO Scutum Fields

J. Greaves
Northants, England, UK

Received:   16.03.2009;   accepted:   3.06.2009
(E-mail for contact: bydra@safe-mail.net)

Remarks:
Three new pulsating variable stars were found in MACHO data. The fundamental mode RR Lyrae is not included in the large lists of MACHO fundamental mode RR Lyrae variables (e.g. Kunder et al. 2008).

Data is sourced from the online public domain archives of the MACHO Project (Allsman and Axelrod 2001). The coordinates are from the 2MASS Point Source Catalog.

Acknowledgements: This paper utilizes public domain data originally obtained by the MACHO Project, whose work was performed under the joint auspices of the U.S. Department of Energy, National Nuclear Security Administration by the University of California, Lawrence Livermore National Laboratory under contract No. W-7405-Eng-48, the National Science Foundation through the Center for Particle Astrophysics of the University of California under cooperative agreement AST-8809616, and the Mount Stromlo and Siding Spring Observatory, part of the Australian National University.

References:
Allsman, R.A., Axelrod, T.S., 2001, arXiv:astro-ph/0108444v1
Kunder, A., Popowski, P., Cook, K.H., Chaboyer, B., 2008, Astron. J., 135, 631