Browse All

Theses & Dissertations

Submissions

Properties of galactic B[e] supergiants V. Two-dimensional radiative transfer model of RY Sct and its dusty disc

UNCG Author/Contributor (non-UNCG co-authors, if there are any, appear on document)
Anatoly S. Miroshnichenko, Associate Professor (Creator)
Institution
The University of North Carolina at Greensboro (UNCG )
Web Site: http://library.uncg.edu/

Abstract: We present results of the first two-dimensional radiative transfer modelling of the eclipsing binary RY Sct and its dusty disc. Assuming an effective temperature T͙ = 27 000K for both components and the distance D = 1.8 kpc, we derive the total luminosity L͙ = 4.2 × 105 L. The optically thin dusty disc (tV ˜ 0.04 in the equatorial plane) extends from its inner boundary at R1 = 60AU to the distances of R2 ˜ 105 AU, where it blends into the interstellar medium. The very high energy output of the supergiants heats up the interstellar dust, well beyond the outer boundary, to temperatures of ~ 100 K.

Additional Information

Publication
Astronomy and Astrophysics 443, 211–222 (2005)
Language: English
Date: 2005
Keywords
stars: emission-line, Be, stars: individual: RY Sct, stars: circumstellar matter, radiative transfer