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First results from the multisite time‐series campaign on the sdBV star HS2201+2610
Author(s) -
Silvotti R.,
Janulis R.,
Gonzalez Perez J.M.,
Oswalt T.,
Silvestri N.,
Kalytis R.,
Meištas E.,
Ališauskas D.,
Jiang X.J.,
Reed M.D.,
Riddle R.L.,
Heber U.,
Bärnbantner O.,
Cordes O.
Publication year - 2001
Publication title -
astronomische nachrichten
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.394
H-Index - 63
eISSN - 1521-3994
pISSN - 0004-6337
DOI - 10.1002/1521-3994(200112)322:5/6<395::aid-asna395>3.0.co;2-b
Subject(s) - physics , photometry (optics) , astrophysics , series (stratigraphy) , amplitude , astronomy , star (game theory) , excited state , stars , optics , nuclear physics , geology , paleontology
In this article we present the first results of about 95 hours of time‐series photometry on the low gravity sdB pulsating star HS 2201+2610, obtained from a multi‐site time‐series campaign in September‐October 2000. The temporal spectrum of HS 2201+2610 shows 3 close frequencies at 2860.9, 2824.1 and 2880.8 μHz with amplitudes of about 1 %, 0.4 % and 0.1 % respectively. Due to the small number of excited modes, a mode identification is possible in principle but not easy; no clear signatures of rotational splitting are seen.