Distances, depth structure, and kinematics of the Magellanic Clouds from disentangling spectra of eclipsing binaries and Cepheids

0399031 - ASÚ 2014 RIV GB eng C - Konferenční příspěvek (zahraniční konf.)
Hadrava, Petr - Štefl, S. - Klement, R. - Martayan, C.
Distances, depth structure, and kinematics of the Magellanic Clouds from disentangling spectra of eclipsing binaries and Cepheids.
Advancing the Physics of Cosmic Distances. Cambridge Universrity Press: Cambridge, 2013, s. 231-234. IAU Symposium Proceedings Series, IAU S289. ISBN 9781107033788. ISSN 1743-9213.
[Symposium of the International Astronomical Union /289./. Beijing (CN), 27.08.2012-31.08.2012]
Grant CEP: GA ČR GA202/09/0772
Institucionální podpora: RVO:67985815
Klíčová slova: binaries * eclipsing * Cepheids
Kód oboru RIV: BN - Astronomie a nebeská mechanika, astrofyzika

Spectroscopy and photometry of eclipsing binaries and Cepheids (using the Baade-Wesselink method) yield primary distance markers applicable to the Local Group of galaxies. The technique of disentangling spectra has proved helpful in resolving stellar physical parameters. Our method also allows us to disentangle interstellar absorption lines and, thus, to complement the radial-velocity structure of the interstellar medium with an (otherwise unattainable) upper limit to its distance. The mapping of the spatial and kinematic structure of the stellar and interstellar components of the Magellanic Clouds and Stream enables constraining their tidal evolution and, thus, of the mass of the Galaxy.
Trvalý link: http://hdl.handle.net/11104/0226413