Zobrazeno 1 - 10
of 52
pro vyhledávání: '"Driebe, Thomas"'
Autor:
Antoniadis, John, Freire, Paulo C. C., Wex, Norbert, Tauris, Thomas M., Lynch, Ryan S., van Kerkwijk, Marten H., Kramer, Michael, Bassa, Cees, Dhillon, Vik S., Driebe, Thomas, Hessels, Jason W. T., Kaspi, Victoria M., Kondratiev, Vladislav I., Langer, Norbert, Marsh, Thomas R., McLaughlin, Maura A., Pennucci, Timothy T., Ransom, Scott M., Stairs, Ingrid H., van Leeuwen, Joeri, Verbiest, Joris P. W., Whelan, David G.
Publikováno v:
Science, 26 April 2013, Vol: 340, Issue: 6131
Many physically motivated extensions to general relativity (GR) predict significant deviations in the properties of spacetime surrounding massive neutron stars. We report the measurement of a 2.01 +/- 0.04 solar mass pulsar in a 2.46-hr orbit with a
Externí odkaz:
http://arxiv.org/abs/1304.6875
Autor:
Millour, Florentin, Meilland, Anthony, Chesneau, Olivier, Fernandes, Marcelo Borges, Groh, José, Driebe, Thomas, Liermann, Adriane, Weigelt, Gerd
Publikováno v:
Active OB stars: Structure, Evolution, Mass loss and critical limits, Paris : France (2010)
B[e] stars are among the most peculiar objects in the sky. This spectral type, characterised by allowed and forbidden emission lines, and a large infrared excess, does not represent an homogenous class of objects, but instead, a mix of stellar bodies
Externí odkaz:
http://arxiv.org/abs/1011.3391
Autor:
Millour, Florentin, Driebe, Thomas, Groh, José, Chesneau, Olivier, Weigelt, Gerd, Liermann, Adriane, Meilland, Anthony
Publikováno v:
Active OB stars: structure, evolution, mass loss and critical limits., Paris : France (2010)
Dusty Wolf-Rayet stars are few but remarkable in terms of dust production rates (up to one millionth of solar mass per year). Infrared excesses associated to mass-loss are found in the sub-types WC8 and WC9. Few WC9d stars are hosting a "pinwheel" ne
Externí odkaz:
http://arxiv.org/abs/1011.3394
Autor:
De Souza, Armando Domiciano, Bendjoya, Philippe, Niccolini, Gilles, Chesneau, Olivier, Fernandes, Marcelo Borges, Carciofi, A. C., Spang, A., Stee, Philippe, Driebe, Thomas
Publikováno v:
Astronomy and Astrophysics (2010) 00
B[e] supergiants are luminous, massive post-main sequence stars exhibiting non-spherical winds, forbidden lines, and hot dust in a disc-like structure. The physical properties of their rich and complex circumstellar environment (CSE) are not well und
Externí odkaz:
http://arxiv.org/abs/1009.3422
Autor:
Groh, Jose H., Nielsen, Krister E., Damineli, Augusto, Gull, Theodore R., Madura, Thomas I., Hillier, D. J., Teodoro, Mairan, Driebe, Thomas, Weigelt, Gerd, Hartman, Henrik, Kerber, Florian, Okazaki, Atsuo T., Owocki, Stan P., Millour, Florentin, Murakawa, Koji, Kraus, Stefan, Hofmann, Karl-Heinz, Schertl, Dieter
We report near-IR spectroscopic observations of the Eta Carinae massive binary system during 2008-2009 using VLT/CRIRES. We detect a strong, broad absorption wing in He I 10833 extending up to -1900 km/s across the 2009.0 spectroscopic event. Archiva
Externí odkaz:
http://arxiv.org/abs/1003.4527
Autor:
Millour, Florentin, Driebe, Thomas, Chesneau, Olivier, Groh, José, Hofmann, Karl-Heinz, Murakawa, Koji, Ohnaka, Keiichi, Schertl, Dieter, Weigelt, Gerd
Publikováno v:
Astronomy and Astrophysics (2009)
Most Wolf-Rayet stars (WR) of WC9 sub-type exhibit a dusty circumstellar envelope, but it is still a matter of debate how dust can form in their harsh environment. In a few cases, a pinwheel-like structure of the dusty envelope has been detected. The
Externí odkaz:
http://arxiv.org/abs/0909.4207
Autor:
Millour, Florentin, Chesneau, Olivier, Fernandes, Marcelo Borges, Meilland, Anthony, Mars, Gilbert, Benoist, C., Thiébaut, E., Stee, Philippe, Hofmann, K. -H., Baron, Fabien, Young, John R., Bendjoya, Philippe, Carciofi, A. C., De Souza, Armando Domiciano, Driebe, Thomas, Jankov, Slobodan, Kervella, Pierre, Petrov, R. G., Robbe-Dubois, Sylvie, Vakili, Farrokh, Waters, L. B. F. M., Weigelt, Gerd
Publikováno v:
Astronomy and Astrophysics (2009) xxx
Context. The star HD 87643, exhibiting the "B[e] phenomenon", has one of the most extreme infrared excesses for this object class. It harbours a large amount of both hot and cold dust, and is surrounded by an extended reflection nebula. Aims. One of
Externí odkaz:
http://arxiv.org/abs/0908.0227
Autor:
Ohnaka, Keiichi, Izumiura, Hideyuki, Leinert, Christoph, Driebe, Thomas, Weigelt, Gerd, Wittkowski, Markus
Silicate carbon stars show the 10 micron silicate emission, despite their carbon-rich photospheres. They are considered to have circumbinary or circum-companion disks, which serve as a reservoir of oxygen-rich material shed by mass loss in the past.
Externí odkaz:
http://arxiv.org/abs/0807.3342
Autor:
Millour, Florentin, Chesneau, Olivier, Driebe, Thomas, Petrov, Romain, Bonneau, Daniel, Dessart, Luc, Hofmann, Karl-Heinz, Weigelt, Gerd
Massive stars deeply influence their surroundings by their luminosity and the injection of kinetic energy. So far, they have mostly been studied with spatially unresolved observations, although evidence of geometrical complexity of their wind are num
Externí odkaz:
http://arxiv.org/abs/0807.0293
We present mid-IR spectro-interferometry of the Seyfert type 1 nucleus of NGC 3783. The dusty circumnuclear environment is spatially resolved and the wavelength dependence of the compact emission is discussed. The observations were carried out with t
Externí odkaz:
http://arxiv.org/abs/0806.0531