SIMBAD references

2004ApJS..154..623M - Astrophys. J., Suppl. Ser., 154, 623-631 (2004/October-0)

The period-luminosity relation for long-period variables in M31.


Abstract (from CDS):

A significant fraction of the disk of M31 has been surveyed for long-period variable stars. We report the results, including near-infrared photometry of almost 2000 variables, and light curves in the i band. The period-luminosity relation suggests that most of the variables are asymptotic giant branch stars, and their luminosity function can be understood in terms of mass-loss rates, which increase with increasing luminosity on the giant branch, and star formation rates, which were a few times higher a billion years ago in M31 than they are today. We see some supergiant long-period variables, but somewhat fewer than expected based on their frequency in M33, and confined to the ring of star formation in M31 seen in the IRAS and 2MASS surveys.

Abstract Copyright:

Journal keyword(s): Galaxies: Individual: Messier Number: M31 - Infrared: Stars - Stars: AGB and Post-AGB - Stars: Variables: Other

VizieR on-line data: <Available at CDS (J/ApJS/154/623): table2.dat>

Nomenclature: Table 2: [MSH2004] FFNNN N=1911.

Simbad objects: 1915

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