Hostname: page-component-77c89778f8-fv566 Total loading time: 0 Render date: 2024-07-18T08:16:55.365Z Has data issue: false hasContentIssue false

Energy Distributions and Fundamental Parameters of 6 A Stars

Published online by Cambridge University Press:  12 April 2016

R. Monier*
Affiliation:
ESA IUE OBSERVATORY, Apartado 50727, 28 MADRID, SPAIN

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

The energy distributions (EDs) of 6 peculiar (3 Aps and 3 λ Bootis) stars are presented from 1200Ȧ up to about 12000Ȧ. For those stars having infrared photometry, the integrated flux from 1200& to 22000Å has been calculated and the Infrared Flux Method (IRFM, Blackwell and Shallis, 1977) applied to derive effective temperatures and angular diameters. For all stars, the effective temperature Teff, the surface gravity logg and metallicity [M/H] were also derived by matching the EDs to a grid of model atmospheres. A chisquare techniques is used to sort out the best fit to the observed EDs.

Type
II. Atmospheres, a window to the interior
Copyright
Copyright © Astronomical Society of the Pacific 1993

References

Blackwell, D.E. and Shallis, M.J., 1977, Monthly Notices of the Royal Astronomical Society, 174, 489 Google Scholar
Breger, M., l975, ApJ Sup, 32, 7 Google Scholar
Groote, and Kaufmann, , 1983, A and A Sup, 53, 91 Google Scholar
Hayes, D.S., 1979, in Problems of calibration of Multicolor photometric systems, Dudley Observatory Report, l4, 29 Google Scholar
Hayes, D.S. and Latham, M.R., 1975, ApJ, 197, 593 Google Scholar
Kurucz, R.L., l979, ApJ Sup, 40, l Google Scholar
Pyper, D.M. and Adelman, S.J., 1983, A and A Sup, 51, 365 Google Scholar
Pyper, D.M. and Adelman, S.J., 1985, A and A Sup, 59, 369 Google Scholar
Venn, K.A. and Lambert, D.A., 1990, ApJ, 363, 234 Google Scholar