An Infrared Census of DUST in Nearby Galaxies with Spitzer (DUSTiNGS). V. The Period-Luminosity Relation for Dusty Metal-poor AGB Stars

被引：26

作者：

Goldman, S. R. ^{[1
]}

Boyer, M. L. ^{[1
]}

McQuinn, K. B. W. ^{[2
,3
]}

Whitelock, P. A. ^{[4
,5
]}

McDonald, I ^{[6
]}

van Loon, J. Th ^{[7
]}

Skillman, E. D. ^{[8
]}

Gehrz, R. D. ^{[8
]}

Javadi, A. ^{[9
]}

Sloan, G. C. ^{[1
,10
]}

Jones, O. C. ^{[11
]}

Groenewegen, M. A. T. ^{[12
]}

Menzies, J. W. ^{[4
]}

机构：

[1] Space Telescope Sci Inst, 3700 San Martin Dr, Baltimore, MD 21218 USA

[2] Univ Texas Austin, McDonald Observ, 2515 Speedway,Stop C1402, Austin, TX 78712 USA

[3] Rutgers State Univ, Dept Phys & Astron, 136 Frelinghuysen Rd, Piscataway, NJ 08854 USA

[4] South African Astron Observ, POB 9,7935 Observ, Cape Town, South Africa

[5] Univ Cape Town, Dept Astron, ZA-7701 Rondebosch, South Africa

[6] Univ Manchester, Jodrell Bank Ctr Astrophys, Alan Turing Bldg, Manchester M13 9PL, Lancs, England

[7] Keele Univ, Lennard Jones Labs, Keele ST5 5BG, Staffs, England

[8] Univ Minnesota, Minnesota Inst Astrophys, Sch Phys & Astron, 116 Church St SE, Minneapolis, MN 55455 USA

[9] Inst Res Fundamental Sci IPM, Sch Astron, POB 19395-5531, Tehran, Iran

[10] Univ N Carolina, Chapel Hill, NC 27599 USA

[11] UK Astron Technol Ctr, Royal Observ, Blackford Hill, Edinburgh EH9 3HJ, Midlothian, Scotland

[12] Koninklijke Sterrenwacht Belgie, Ringlaan 3, B-1180 Brussels, Belgium

来源：

ASTROPHYSICAL JOURNAL | 2019年 / 877卷 / 01期

关键词：

galaxies: dwarf; galaxies: stellar content; infrared: stars; Local Group; stars: AGB and post-AGB; stars: carbon; GIANT BRANCH STARS; LARGE-MAGELLANIC-CLOUD; M33 MONITORING PROJECT; LOCAL GROUP GALAXIES; GRAVITATIONAL LENSING EXPERIMENT; MASS-LOSS RATES; VARIABLE-STARS; EVOLVED STARS; RSG STARS; GLOBULAR-CLUSTERS;

D O I：

10.3847/1538-4357/ab0965

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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% success rate and determined the pulsation properties of 19 sources already identified as thermally pulsing AGB stars. We find that the AGB pulsation properties are similar in all galaxies surveyed here, with no discernible difference between the DUSTiNGS galaxies (down to 1.4% solar metallicity; [Fe/H] = -1.85) and the far more metal-rich Magellanic Clouds (up to 50% solar metallicity; [Fe/H] = -0.38). These results strengthen the link between dust production and pulsation in AGB stars and establish the IR period-luminosity relation as a reliable tool (+/- 4%) for determining distances to galaxies, regardless of metallicity.

引用

页数：20

共 9 条

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Boyer, Martha L.
McQuinn, Kristen B. W.
Barmby, Pauline
Bonanos, Alceste Z.
Gehrz, Robert D.
Gordon, Karl D.
Groenewegen, M. A. T.
Lagadec, Eric
Lennon, Daniel
Marengo, Massimo
McDonald, Iain
Meixner, Margaret
Skillman, Evan
Sloan, G. C.
Sonneborn, George
van Loon, Jacco Th.
Zijlstra, Albert
ASTROPHYSICAL JOURNAL, 2015, 800 (01):
[2] DUST in Nearby Galaxies with Spitzer (DUSTINGS): An Infrared Census of Extreme AGB Stars in Nearby Dwarf Galaxies
Boyer, Martha L.
McQuinn, K. B. W.
Barmby, P.
Bonanos, A. Z.
Gehrz, R. D.
Gordon, K. D.
Groenewegen, M. A. T.
Lagadec, E.
Lennon, D.
Marengo, M.
Meixner, M.
Skillman, E.
Sloan, G. C.
Sonneborn, G.
van Loon, J. Th
Zijlstra, A. A.
WHY GALAXIES CARE ABOUT AGB STARS III: A CLOSER LOOK IN SPACE AND TIME, 2015, 497 : 453 - 458
[3] AN INFRARED CENSUS OF DUST IN NEARBY GALAXIES WITH SPITZER (DUSTINGS). I. OVERVIEW
Boyer, Martha L.
McQuinn, Kristen B. W.
Barmby, Pauline
Bonanos, Alceste Z.
Gehrz, Robert D.
Gordon, Karl D.
Groenewegen, M. A. T.
Lagadec, Eric
Lennon, Daniel
Marengo, Massimo
Meixner, Margaret
Skillman, Evan
Sloan, G. C.
Sonneborn, George
van Loon, Jacco Th.
Zijlstra, Albert
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2015, 216 (01):
[4] An Infrared Census of DUST in Nearby Galaxies with Spitzer (DUSTiNGS). IV. Discovery of High-redshift AGB Analogs
Boyer, M. L.
McQuinn, K. B. W.
Groenewegen, M. A. T.
Zijlstra, A. A.
Whitelock, P. A.
van Loon, J. Th.
Sonneborn, G.
Sloan, G. C.
Skillman, E. D.
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Gehrz, R. D.
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ASTROPHYSICAL JOURNAL, 2017, 851 (02):
[5] A census of OBe stars in nearby metal-poor dwarf galaxies reveals a high fraction of extreme rotators
Schootemeijer, A.
Lennon, D. J.
Garcia, M.
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Hastings, B.
Schurmann, C.
ASTRONOMY & ASTROPHYSICS, 2022, 667
[6] A census of OBe stars in nearby metal-poor dwarf galaxies reveals a high fraction of extreme rotators
Schootemeijer, A.
Lennon, D.J.
Garcia, M.
Langer, N.
Hastings, B.
Schürmann, C.
Astronomy and Astrophysics, 2022, 667
[7] OBSERVATIONS OF BINARY STARS WITH THE DIFFERENTIAL SPECKLE SURVEY INSTRUMENT. V. TOWARD AN EMPIRICAL METAL-POOR MASS-LUMINOSITY RELATION
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van Altena, William F.
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ASTRONOMICAL JOURNAL, 2015, 149 (05):
[8] The Herschel Virgo Cluster Survey V. Star-forming dwarf galaxies - dust in metal-poor environments
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Xilouris, E. M.
Zibetti, S.
ASTRONOMY & ASTROPHYSICS, 2010, 518
[9] Astrometry and infrared observations of the Mira variable stars AP Lyncis, V837 Herculis, and BX Camelopardalis: Implications for the period-luminosity relation of the Milky Way
Chibueze, James O.
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Morikawa, Yuto
Fujimoto, Masayuki Y.
Nakagawa, Akiharu
Nagayama, Takahiro
Nagayama, Takumi
Hirano, Ken
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, 2020, 72 (04)

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