Echography of young stars reveals their evolution-Reference-Cited by-同舟云学术

Echography of young stars reveals their evolution

Published:2014-08 Issue:6196 Volume:345 Page:550-553
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Zwintz K.¹,Fossati L.²,Ryabchikova T.³,Guenther D.⁴,Aerts C.¹⁵,Barnes T. G.⁶,Themeßl N.⁷,Lorenz D.⁷,Cameron C.⁸,Kuschnig R.⁷,Pollack-Drs S.⁷,Moravveji E.¹,Baglin A.⁹,Matthews J. M.¹⁰,Moffat A. F. J.¹¹,Poretti E.¹²,Rainer M.¹²,Rucinski S. M.¹³,Sasselov D.¹⁴,Weiss W. W.⁷

Affiliation:

1. Instituut voor Sterrenkunde, Katholieke Universiteit (KU) Leuven, Celestijnenlaan 200D, 3001 Leuven, Belgium.

2. Argelander Institut für Astronomie der Universität Bonn, Auf dem Hügel 71, 53121 Bonn, Germany.

3. Institute of Astronomy, Russian Academy of Sciences (RAS), Pyatnitskaya 48, 109017 Moscow, Russia.

4. Department of Astronomy and Physics, St. Mary’s University, Halifax, Nova Scotia B3H 3C3, Canada.

5. Department of Astrophysics, Institute for Mathematics, Astrophysics and Particle Physics, Radboud University Nijmegen, Post Office Box 9010, 6500 GL Nijmegen, Netherlands.

6. The University of Texas at Austin, McDonald Observatory, 82 Mt. Locke Road, McDonald Observatory, TX 79734, USA.

7. Universität Wien, Institut für Astrophysik, Türkenschanzstraße 17, 1180 Vienna, Austria.

8. Department of Mathematics, Physics and Geology, Cape Breton University, 1250 Grand Lake Road, Sydney, Nova Scotia B1P 6L2, Canada.

9. Laboratoire d’Études Spatiales et d’Instrumentation en Astrophysique, Observatoire de Paris-Meudon, 5 place Jules Janssen, 92195, Meudon, France.

10. Department of Physics and Astronomy, University of British Columbia, 6224 Agricultural Road, Vancouver, British Columbia V6T 1Z1, Canada.

11. Départment de Physique, Université de Montréal, C.P. 6128, Succ. Centre-Ville, Montréal, Quebec H3C 3J7, Canada.

12. Istituto Nazionale di Astrofisica–Osservatorio Astronomico di Brera, Via E. Bianchi 46, 23807 Merate, Italy.

13. Department of Astronomy and Astrophysics, University of Toronto, 50 St. George Street, Toronto, Ontario M5S 3H4, Canada.

14. Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA.

Abstract

A finger on the pulse of young stars Adolescent stars quiver and quake before the onset of nuclear fusion in their cores. Zwintz et al. confirm theoretical predictions that the frequency of the seismic oscillations in a given star is tied to its evolutionary status (see the Perspective by Stahler and Palla). As the protostar evolves and contracts, growing hotter and denser, it pulsates faster. Though previously applied only to aging stars, asteroseismology now offers a powerful tool for discerning the ages of very young stars. The relative timing of star formation within young clusters especially benefits from this refinement, as stars there are often tagged with one blanket age. Science , this issue p. 550 ; see also p. 514

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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