A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
Contemporaneous Imaging Comparisons of the Spotted Giant σ Geminorum Using Interferometric, Spectroscopic, and Photometric Data
Tekijät: Roettenbacher RM, Monnier JD, Korhonen H, Harmon RO, Baron F, Hackman T, Henry GW, Schaefer GH, Strassmeier KG, Weber M, ten Brummelaar TA
Kustantaja: IOP PUBLISHING LTD
Julkaisuvuosi: 2017
Journal: Astrophysical Journal
Tietokannassa oleva lehden nimi: ASTROPHYSICAL JOURNAL
Lehden akronyymi: ASTROPHYS J
Artikkelin numero: 120
Vuosikerta: 849
Numero: 2
Sivujen määrä: 16
ISSN: 0004-637X
DOI: https://doi.org/10.3847/1538-4357/aa8ef7
Rinnakkaistallenteen osoite: https://research.utu.fi/converis/portal/detail/Publication/28397182
Nearby active stars with relatively rapid rotation and large starspot structures offer the opportunity to compare interferometric, spectroscopic, and photometric imaging techniques. In this paper, we image a spotted star with three different methods for the first time. The giant primary star of the RS Canum Venaticorum binary sigma. Geminorum (sigma Gem) was imaged for two epochs of interferometric, high-resolution spectroscopic, and photometric observations. The light curves from the reconstructions show good agreement with the observed light curves, supported by the longitudinally consistent spot features on the different maps. However, there is strong disagreement in the spot latitudes across the methods.
Ladattava julkaisu This is an electronic reprint of the original article. |  |
