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Paper   IPM / Astronomy / 15725
School of Astronomy
  Title:   An Infrared Census Of Dust In Nearby Galaxies With Spitzer (DUSTiNGS): V. The Period-luminosity Relation For Dusty Metal-Poor AGB Stars
1.  Steven . R. Goldman
2.  Martha . L. Boyer
3.  Kristen . B. McQuinn
4.  Patricia A. . Whitelock
5.  Iain . McDonald
6.  Jacco . Th. van Loon
7.  Evan . D. Skillman
8.  Robert . D. Gehrz
9.  Atefeh . Javadi
10.  Gregory . C. Sloan
11.  Olivia . C. Jones
12.  Martin . A. T. Groenewegen
13.  John . W. Menzies
  Status:   Published
  Journal: Astrophysical Journal
  Vol.:  2019
  Year:  2019
  Supported by:            ipm IPM
The survey for DUST in Nearby Galaxies with Spitzer (DUSTiNGS) has identified hundreds of candidate dust-producing asymptotic giant branch (AGB) stars in several nearby metal-poor galaxies. We have obtained multi-epoch follow-up observations for these candidates with the Spitzer Space Telescope and measured their infrared (IR) light curves. This has allowed us to confirm their AGB nature and investigate pulsation behavior at very low metallicity. We have obtained high-confidence pulsation periods for 88 sources in seven galaxies. We have confirmed DUSTiNGS variable star candidates with a 20

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