MODELING CIRCUMSTELLAR DISKS OF B-TYPE STARS WITH OBSERVATIONS FROM THE PALOMAR TESTBED INTERFEROMETER

Journal Article · Wed May 15 00:00:00 EDT 2013 · Astronomical Journal (New York, N.Y. Online)

DOI:https://doi.org/10.1088/0004-6256/145/5/141· OSTI ID:22130705

Grzenia, B. J.; Tycner, C. ^[1]; Jones, C. E.; Sigut, T. A. A. ^[2]; Rinehart, S. A. ^[3]; Van Belle, G. T. ^[4]

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1. Department of Physics, Central Michigan University, Mt. Pleasant, MI 48859 (United States)
2. Department of Physics and Astronomy, University of Western Ontario, London, ON N6A 3K7 (Canada)
3. NASA Goddard Space Flight Center, Greenbelt, MD 20771 (United States)
4. Lowell Observatory, 1400 West Mars Hill Road, Flagstaff, AZ 86001 (United States)

Geometrical (uniform disk) and numerical models were calculated for a set of B-emission (Be) stars observed with the Palomar Testbed Interferometer (PTI). Physical extents have been estimated for the disks of a total of 15 stars via uniform disk models. Our numerical non-LTE models used parameters for the B0, B2, B5, and B8 spectral classes and following the framework laid by previous studies, we have compared them to infrared K-band interferometric observations taken at PTI. This is the first time such an extensive set of Be stars observed with long-baseline interferometry has been analyzed with self-consistent non-LTE numerical disk models.

• OSTI ID: 22130705
• Journal Information: Astronomical Journal (New York, N.Y. Online), Vol. 145, Issue 5; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 1538-3881
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
ASTROPHYSICS
EMISSION
INTERFEROMETERS
INTERFEROMETRY
LTE
SIMULATION
STARS