Is the period-luminosity relation of AGB stars universal?

Details Is the period-luminosity relation of AGB stars universal? Is the period-luminosity relation of AGB stars universal?

Nov 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009sf2a.conf..287s&link_type=abstract

SF2A-2009: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics, held 29 June - 4 July 2009 in

Astronomy and Astrophysics

Astrophysics

Scientific paper

One characteristic of AGB stars is their large amplitude variation due to pulsation.
I studied the behaviour of the pulsational properties of Long Period Variables (LPVs)
in different galactic environments such as the galactic Bulge, the LMC and SMC. I have shown
that the Bulge LPVs follow nearly the same Period-luminosity relation in these three different environments. In the infrared, the PL relation of AGB stars is universal. Therefore AGB stars can be seen as excellent extraglactic distance indicators.

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