Asymptotic Giant Branch Stars in the Phoenix Dwarf Galaxy
arXiv:0801.0038 · doi:10.1111/j.1365-2966.2008.12907.x
Abstract
JHKs near-infrared photometry of stars in the Phoenix dwarf galaxy is presented and discussed. Combining these data with the optical photometry of Massey et al. allows a rather clean separation of field stars from Phoenix members. The discovery of a Mira variable (P = 425 days), which is almost certainly a carbon star, leads to an estimate of the distance modulus of 23.10+/-0.18 that is consistent with other estimates and indicates the existence of a significant population of age ~2 Gyr. The two carbon stars of Da Costa have M{bol} = -3.8 and are consistent with belonging to a population of similar age; some other possible members of such a population are identified. A Da Costa non-carbon star is Delta Ks~0.3 mag brighter than these two carbon stars. It may be an AGB star of the dominant old population. The nature of other stars lying close to it in the Ks,(J-Ks) diagram needs studying.
arXiv comment9 Pages, 7 figures, accepted for MNRAS
References in corpus (15)
- Evolutionary tracks and isochrones for low- and intermediate-mass stars: from 0.15 to 7 M_sun, and from Z=0.0004 to 0.03
- Dwarf Galaxies of the Local Group
- A large stellar evolution database for population synthesis studies. I. Scaled solar models and isochrones
- Color Transformations for the 2MASS Second Incremental Data Release
- M-Subdwarfs: Spectroscopic Classification and the Metallicity Scale
- Cepheid Parallaxes and the Hubble Constant
- Near-Infrared Photometry of Carbon Stars
- A Survey of Local Group Galaxies Currently Forming Stars: II. UBVRI Photometry of Stars in Seven Dwarfs and a Comparison of the Entire Sample
- Tip of the Red Giant Branch distances to galaxies with composite stellar populations
- The stellar content of the Local Group dwarf galaxy Phoenix
- The Aptly Named Phoenix Dwarf Galaxy
- Carbon-Rich Mira Variables: Kinematics and Absolute Magnitudes
- The variable star population in Phoenix: coexistence of Anomalous and short-period Classical Cepheids, and detection of RR Lyrae variables
- Stellar Populations in the Phoenix Dwarf (dIrr/dSph) Galaxy as Observed by HST/WFPC2
- The Brightest AGB Stars in the Leo I Dwarf Spheroidal Galaxy
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- An Infrared Census of DUST in Nearby Galaxies with Spitzer (DUSTiNGS), I. Overview
- The meaning of WISE colours - I. The Galaxy and its satellites
- Asymptotic Giant Branch stars at low metallicity: the challenging interplay between mass loss and molecular opacities
- The Local Group Galaxy NGC 6822 and its Asymptotic Giant Branch Stars
- A Spitzer Study of Asymptotic Giant Branch Stars. III. Dust Production and Gas Return in Local Group Dwarf Irregular Galaxies
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- The Local Group Galaxy IC1613 and its Asymptotic Giant Branch Variables
- An Infrared Census Of Dust In Nearby Galaxies With Spitzer (DUSTiNGS): V. The Period-luminosity Relation For Dusty Metal-Poor AGB Stars
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- Astrophysical Distance Scale II. Application of the JAGB Method: A Nearby Galaxy Sample
- A wide-area view of the Phoenix dwarf galaxy from VLT/FORS imaging
- Asymptotic Giant Branch Variables in the Galaxy and the Local Group
- The period-age relation of long-period variables
- A Remarkable Oxygen-rich Asymptotic Giant Branch Variable in the Sagittarius Dwarf Irregular Galaxy
- Resolving Stellar Populations outside the Local Group: MAD observations of UKS2323-326
- Identification of dusty massive stars in star-forming dwarf irregular galaxies in the Local Group with mid-IR photometry
- A near-infrared study of AGB and red giant stars in the Leo I dSph galaxy
- Variable Stars and Galactic Structure
- Asymptotic Giant Branch Stars in the Nearby Dwarf Galaxy Leo P
- Time-Series Surveys and Pulsating Stars: The Near-Infrared Perspective
- Asymptotic Giant Branch Variables as Extragalactic Distance Indicators
- The Search for High-Mass X-ray Binaries in the Phoenix Dwarf Galaxy
- A machine-learning photometric classifier for massive stars in nearby galaxies II. The catalog