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Abteilung Astronomie

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Preprint 23a/02


S.L. Schuh (1), U. Heber (2), S. Dreizler (1), S. O'Toole (3;2), C.S. Jeffery (4), S. Falter (2), V.M. Woolf (4;5), R. Riddle (6), G. Handler (7;8), Ö. Hürkal (41), E. Pakstiene (9), E.W. Klumpe (10), T. Laurance (10), M. Vuckovic (6), S. Zola (11;12), S. Kawaler (6), A. Kanaan (13), H. Monteiro (14), O. Giovannini (15), S.O. Kepler (16), A. Mukadam (17), J. Provencal (18), A. Nitta (19), H. Shipman (18), F. Mullally (17), A. Grauer (20;21), M.A. Wood (22), P.A. Bradley (23), M. Kilic (17), K. Sekiguchi (24), R. Crowe (25), D. Sullivan (26), R. Rosen (27), C. Clemens (27), J. Xiaojun (28), R. Janulis (29), D. O'Donoghue (10), W. Ogloza (12), A. Baran (12), R. Silvotti (30), S. Marinoni (31), G. Vauclair (32), N. Dolez (32), M. Chevreton (33), J.L. Deetjen (1), T. Nagel (1), J.M. González Pérez (34), J.-E. Solheim (34), R. Østensen (35), A. Ulla (36), M. Burleigh (37), S. Good (37), T. Metcalfe (17), A.F.M. da Costa (16), J.E.S. Costa (16), M.S. O'Brien (38), S.-L. Kim (39), H. Lee (39), A. Sergeev (40), C. Akan (41), Ö. Cakirli (41), M. Paparo (42), G. Viraghalmy (42)

(1) Institut für Astronomie und Astrophysik, Universität Tübingen, Sand 1, D-72076 Tübingen, Germany
(2) Dr. Remeis-Sternwarte Bamberg, Universität Erlangen-Nürnberg, Germany
(3) University of Sydney, Australia
(4) Armagh Observatory, United Kingdom
(5) Astronomy Department, University of Washington, United States of America
(6) Iowa State University, United States of America
(7) South African Astronomical Observatory, South Africa
(8) Institut für Astronomie, Universität Wien, Austria
(9) Institute of Theoretical Physics & Astronomy, Vilnius, Lithuania
(10) Middle Tennessee State University, United States of America
(11) Astronomical Observatory, Jagiellonian University, Crakow, Poland
(12) Mt. Suhora Observatory, Pedagogical University, Crakow, Poland
(13) Universidade Federal Santa Catarina, Brazil
(14) Instituto Astronômico e Geofísico, USP, Brazil
(15) Departamento de Fisica e Quimica, Universidade de Caxias do Sul, Brazil
(16) Universidade Federal do Rio Grande Do Sul, Brazil
(17) University of Texas, Austin, United States of America
(18) University of Delaware, United States of America
(19) Apache Point Observatory, United States of America
(20) University of Arkansas at Little Rock, United States of America
(21) Steward Observatory, United States of America
(22) Florida Institute of Technology, United States of America
(23) Los Alamos National Laboratory, United States of America
(24) Subaru National Astronomical Observatory of Japan at Hilo, Hawai'i
(25) University of Hawai'i at Hilo, Hawai'i, United States of America
(26) University of Victoria, Wellington, New Zealand
(27) University of North Carolina at Chapel Hill, United States of America
(28) Beijing Astronomical Observatory, China
(29) Institute of Theoretical Physics and Astronomy, Vilnius, Lithuania
(30) Osservatorio Astronomico di Capodimonte, Napoli, Italy
(31) Dipartimento di Astronomia, Università di Bologna, Italy
(32) Observatoire Midi-Pyrenees, France
(33) Observatoire Paris-Meudon, France
(34) Universitet i Tromø, Norway
(35) Isaac Newton Group, La Palma, Spain
(36) Universidade de Vigo, Spain
(37) University of Leicester, United Kingdom
(38) Yale University, New Haven, Connecticut, United States of America
(39) Korea Astronomy Observatory, Korea
(40) Terskol Observatory, Ukraine
(41) Turkish Natl. Obs., Turkey
(42) Piszkestetö Observatory, Hungary

In: The 6th W.E.T. Workshop, eds. J.-E. Solheim and E. Meistas, Baltic Astronomy 12, 55

Abstract. The Multi-Site Spectroscopic Telescope is a virtual instrument and the name of a collaboration that opens up a new observational window by combining continuous observations of spectroscopic variations and simultaneous photometric monitoring. This constitutes an enormous observational effort, but in return promises to finally provide access to a mode identification for and an asteroseismological analysis of the pulsating sdB star PG 1605+072. Multi-Site Spectroscopic Telescope observations for this object have been secured during a large coordinated campaign in May and June of the year 2002. The frequency resolution and coverage of the photometric time series has been noticeably enhanced by a significant contribution from the Whole Earth Telescope, which was used to observe PG 1605+072 as an alternate target during the WET Xcov22 campaign, also conducted in May 2002. This paper briefly outlines the motivation for the MSST project and tries to give a first assessment of the overall quality of the data obtained, with a focus on the Whole Earth Telescope observations.

Key words: stars: interiors - stars: individual: PG 1605+072

Paper (407k gzip'ed Postscript including figures)

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