Comparisons between Observed and Computed Visible and Near-UV Spectra of Vega

Bibcode
2003ASPC..288..145G
García-Gil, A.; Allende Prieto, C.; García López, R. J.; Hubeny, I.
Bibliographical reference

Stellar Atmosphere Modeling, ASP Conference Proceedings, Vol. 288. Abstracts from a conference held 8-12 April 2002 in Tuebingen, Germany. Editors: Ivan Hubeny, Dimitri Mihalas, and Klaus Werner. San Francisco: Astronomical Society of the Pacific, ISBN: 1-58381-131-1, 2003, p.145

Advertised on:
1
2003
Number of authors
4
IAC number of authors
2
Citations
2
Refereed citations
2
Description
By using the Synspec program with different LTE and NLTE atmospheric models of Alpha Lyrae (Vega, spectral type A0V), we obtain different emitted fluxes. Taking into account the distance from Hipparcos, it is obtained the spectrum that would be observed from Earth for each model. This spectrum is compared with UV calibrations from the IUE and UARS satellites and visible ground-based observations. Absolute fluxes from the SOLSTICE experiment onboard UARS provide an independent source to assess the quality of the available data. The main goal of this work is to better understand and solve the controversy about the missing opacity problem in the UV. This is just the first step in that direction.
Type
Non-refereed

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