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Title:
Herbig Ae/Be stars - Intermediate-mass stars surrounded by massive circumstellar accretion disks
Authors:
Hillenbrand, Lynne A.; Strom, Stephen E.; Vrba, Frederick J.; Keene, Jocelyn
Affiliation:
AA(Massachusetts Univ., Amherst), AB(Massachusetts Univ., Amherst), AC(U.S. Naval Observatory, Flagstaff, AZ), AD(California Inst. of Technology, Pasadena)
Publication:
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 397, no. 2, p. 613-643. (ApJ Homepage)
Publication Date:
10/1992
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
A Stars, Accretion Disks, B Stars, Stellar Envelopes, Stellar Mass, Astronomical Photometry, Astronomical Polarimetry, Infrared Photometry, Spectral Energy Distribution, Stellar Mass Accretion, Stellar Models, T Tauri Stars
DOI:
10.1086/171819
Bibliographic Code:
1992ApJ...397..613H

Abstract

The proposition that Herbig Ae/Be stars are young intermediate mass stars surrounded by optically thick accretion disks is explored. From a study of 47 such objects, a subset of 30 stars is identified whose spectral energy distributions can be interpreted convincingly in terms of pre-main sequence stars surrounded by massive optically thick circumstellar accretion disks. Constraints on the physical properties of the disks, such as size, mass, accretion rate, lifetime, and radial structure are derived from the photometric data.

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