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Testing Mass Loss in Large Magellanic Cloud Cepheids using Infrared and Optical Observations
Hilding R. Neilson, Chow-Choong Ngeow, Shashi M. Kanbur +1
It has been claimed that Period-Luminosity relations derived from infrared observations of Large Magellanic Cloud (LMC) Cepheids are less dependent on the metallicity of the Cephei…
On the Enhancement of Mass Loss in Cepheids Due to Radial Pulsation. II. The Effect of Metallicity
Hilding R. Neilson, John B. Lester
It has been observed that Cepheids in the Magellanic Clouds have lower masses for the same luminosity than those in the Milky Way. The model, from Neilson & Lester (2008), of pulsa…
Determining Parameters of Cool Giant Stars by Modeling Spectrophotometric and Interferometric Observations Using the SAtlas Program
Hilding R. Neilson, John B. Lester
Context: Optical interferometry is a powerful tool for observing the intensity structure and angular diameter of stars. When combined with spectroscopy and/or spectrophotometry, in…
SAtlas: Spherical Versions of the Atlas Stellar Atmosphere Program
John B. Lester, Hilding R. Neilson
Context: The current stellar atmosphere programs still cannot match some fundamental observations of the brightest stars, and with new techniques, such as optical interferometry, p…
Modeling Stellar Atmospheres with a Spherically Symmetric Version of the Atlas Code: Testing the Code by Comparisons to Interferometric Observations and PHOENIX Models
Hilding R. Neilson, John B. Lester
One of the current opportunities for stellar atmospheric modeling is the interpretation of optical interferometric data of stars. Starting from the robust, open source ATLAS atmosp…
Modeling Mass-Loss and Infrared Excess in Large Magellanic Cloud Cepheids
Hilding R. Neilson, Chow-Choong Ngeow, Shashi M. Kanbur +1
The purpose of this preliminary work is to determine if Large Magellanic Cloud (LMC) Cepheids have stellar winds. If a Cepheid undergoes mass loss then at some distance from the st…