Published May 2013 | Version v1
Journal article

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

  • 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)

Description

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.

Availability note (English)

Available from http://dx.doi.org/10.1088/0004-6256/145/5/141

Additional details

Identifiers

Publishing Information

Journal Title
Astronomical Journal (New York, N.Y. Online)
Journal Volume
145
Journal Issue
5
Journal Page Range
[11 p.]
ISSN
1538-3881

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
44085829
Subject category
S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
Descriptors DEI
ASTROPHYSICS; EMISSION; INTERFEROMETERS; INTERFEROMETRY; LTE; SIMULATION; STARS
Descriptors DEC
EQUILIBRIUM; MEASURING INSTRUMENTS; PHYSICS