Period-magnitude relations for M giants in Baade's Window NGC6522
Astrophysics
2009-11-10 v1
Abstract
A large and complete sample of stars with K < 9.75 in the NGC6522 Baade's Window is examined using light curves from MACHO and IJK from DENIS. All 4 of the sequences ABCD in the K vs logP diagram of the LMC are seen in the Bulge. The Bulge sequences however show some differences from the Magellanic Clouds. The sequences may be useful as distance indicators. A new diagram of the frequency of late-type variables is presented. The catalogued SR variables of the solar nbd are found to be a subset of the total of SRs, biased towards large amplitude.
Keywords
Cite
@article{arxiv.astro-ph/0307366,
title = {Period-magnitude relations for M giants in Baade's Window NGC6522},
author = {I. S. Glass and M. Schultheis},
journal= {arXiv preprint arXiv:astro-ph/0307366},
year = {2009}
}
Comments
11 pages 11 figs