Period-magnitude relations for M giants in Baade's Window NGC6522

Details Period-magnitude relations for M giants in Baade's Window NGC6522 Period-magnitude relations for M giants in Baade's Window NGC6522

2003-07-21

arxiv.org/abs/astro-ph/0307366v1

Mon.Not.Roy.Astron.Soc.345:39,2003

Astronomy and Astrophysics

Astrophysics

11 pages 11 figs

Scientific paper

10.1046/j.1365-8711.2003.06914.x

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.

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