Share Email Print

Proceedings Paper

Analysis of surface structures of chemically peculiar stars with modern and future interferometers
Author(s): D. Shulyak; K. Perraut; Claudia Paladini; G. Li Causi; Stephane Sacuto; O. Kochukhov
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

Interferometry is a very powerful observational technique known in astronomy for many decades. Its application to main-sequence stars, however, is still limited to only brightest objects. In this work we aim to explore the application of interferometry to a special class of main-sequence stars known as chemically peculiar (CP) stars. These stars demonstrate surface chemical abundance inhomogeneities (spots) that usually cover a considerable part of the stellar surface and induce a pronounced spectral and photometric variability. Interferometry thus has a potential to naturally resolve such spots in single stars, providing unique complementary information about spots sizes and contrasts. By means of numerical experiments we derive the actual interferometric requirements essential for the CP stars research that can be addressed in future instrument development. The first comparison between theoretical predictions and already available observations will also be discussed.

Paper Details

Date Published: 24 July 2014
PDF: 7 pages
Proc. SPIE 9146, Optical and Infrared Interferometry IV, 91462V (24 July 2014); doi: 10.1117/12.2055555
Show Author Affiliations
D. Shulyak, Georg-August-Univ. Göttingen (Germany)
K. Perraut, Institut de Planétologie et d’Astrophysique de Grenoble, CNRS, Univ. Genoble Alpes (France)
Claudia Paladini, Univ. Libre de Bruxelles (Belgium)
G. Li Causi, INAF - Osservatorio Astronomico di Roma (Italy)
Stephane Sacuto, Uppsala Univ. (Sweden)
O. Kochukhov, Uppsala Univ. (Sweden)

Published in SPIE Proceedings Vol. 9146:
Optical and Infrared Interferometry IV
Jayadev K. Rajagopal; Michelle J. Creech-Eakman; Fabien Malbet, Editor(s)

© SPIE. Terms of Use
Back to Top
Sign in to read the full article
Create a free SPIE account to get access to
premium articles and original research
Forgot your username?