Two AOV Stars on the Zero-Age Main-Sequence in the Association Cha I

Wesselius, P. R.; The, P. S.; Tjin A Djie, H. R. E.; Steenman, H.

doi:10.1007/978-94-009-5478-6_9

Two AOV Stars on the Zero-Age Main-Sequence in the Association Cha I

P. R. Wesselius³,
P. S. The⁴,
H. R. E. Tjin A Djie⁴ &
…
H. Steenman⁴

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Part of the book series: Astrophysics and Space Science Library ((ASSL,volume 120))

Abstract

We discuss the balance between absorbed and re-emitted flux for pre- main-sequence stars surrounded by circumstellar dust, in particular for the stars HD 97048 and HD 97300 in the Cha I association. The MK spectral classification and apparent visual magnitude for these stars are: B9.5 Ve and V = 8.4; B9V and V = 9.0, respectively. Both objects are presumably ZAMS stars; although HD 97300 has no emission features, it does have many of the properties of a Herbig Ae/Be star.

This report is based in part on observations collected at the European Southern Observatory La Silla, Chile, and on IRAS observations. The Infrared Astronomical Satellite was developed and operated by The Netherlands Agency for Aerospace Programs (NIVR), the US National Aeronautics and Space Administration (NASA), and the UK Science and Engineering Research Council (SERC).

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Authors and Affiliations

Laboratory for Space Research, P.O. Box 800, 9700 AV, Groningen, The Netherlands
P. R. Wesselius
Astronomical Institute ‘Anton Pannekoek’, Roetersstraat 15, 1018 WB, Amsterdam, The Netherlands
P. S. The, H. R. E. Tjin A Djie & H. Steenman

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P. R. Wesselius
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P. S. The
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H. R. E. Tjin A Djie
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H. Steenman
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Editors and Affiliations

Netherlands Foundation for Astronomical Research, The Hague, The Netherlands
Wilfried Boland
Kapteyn Institute, Groningen, The Netherlands
Hugo van Woerden

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Wesselius, P.R., The, P.S., Tjin A Djie, H.R.E., Steenman, H. (1985). Two AOV Stars on the Zero-Age Main-Sequence in the Association Cha I. In: Boland, W., van Woerden, H. (eds) Birth and Evolution of Massive Stars and Stellar Groups. Astrophysics and Space Science Library, vol 120. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-5478-6_9

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DOI: https://doi.org/10.1007/978-94-009-5478-6_9
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-8919-7
Online ISBN: 978-94-009-5478-6
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