Zobrazeno 1 - 10
of 74
pro vyhledávání: '"Crespo Chacón, I."'
The extension of the corona of classical T Tauri stars (CTTS) is under discussion. The standard model of magnetic configuration of CTTS predicts that coronal magnetic flux tubes connect the stellar atmosphere to the inner region of the disk. However,
Externí odkaz:
http://arxiv.org/abs/1603.06144
Autor:
Stelzer, B., Alcala, J., Biazzo, K., Ercolano, B., Crespo-Chacon, I., Lopez-Santiago, J., Martinez-Arnaiz, R., Schmitt, J. H. M. M., Rigliaco, E., Leone, F., Cupani, G.
We have obtained an XMM-Newton observation and a broad-band spectrum from the ultraviolet to the near infrared with X-Shooter for one of the nearest M9 dwarfs, DENIS-P J1048-3956 (4pc). We integrate these data by a compilation of activity parameters
Externí odkaz:
http://arxiv.org/abs/1111.6880
We present a homogeneous study of chromospheric and coronal flux-flux relationships using a sample of 298 late-type dwarf active stars with spectral types F to M. The chromospheric lines were observed simultaneously in each star to avoid spread due t
Externí odkaz:
http://arxiv.org/abs/1102.4506
Autor:
Lopez-Santiago, J., Montes, D., Galvez-Ortiz, M. C., Crespo-Chacon, I., Martinez-Arnaiz, R. M., Fernandez-Figueroa, M. J., De Castro, E., Cornide, M.
Aims: We present a compilation of spectroscopic data from a survey of 144 chromospherically active young stars in the solar neighborhood which may be used to investigate different aspects of the formation and evolution of the solar neighborhood in te
Externí odkaz:
http://arxiv.org/abs/1002.1663
We analyzed a long duration flare observed in a serendipitous XMM-Newton detection of the M star CD-39 7717B (TWA 11B), member of the young stellar association TW Hya (~ 8 Myr). Only the rise phase (with a duration of ~ 35 ks) and possibly the flare
Externí odkaz:
http://arxiv.org/abs/1002.1013
X-ray flares on the UV Ceti-type star CC Eridani: a 'peculiar' time-evolution of spectral parameters
Context: Weak flares are supposed to be an important heating agent of the outer layers of stellar atmospheres. However, due to instrumental limitations, only large X-ray flares have been studied in detail until now. Aims: We used an XMM-Newton observ
Externí odkaz:
http://arxiv.org/abs/0706.3332
Autor:
Crespo-Chacon, I., Montes, D., Garcia-Alvarez, D., Fernandez-Figueroa, M. J., Lopez-Santiago, J., Foing, B. H.
We report the results of a high temporal resolution spectroscopic monitoring of the flare star AD Leo. During 4 nights, more than 600 spectra were taken in the optical range using the Isaac Newton Telescope (INT) and the Intermediate Dispersion Spect
Externí odkaz:
http://arxiv.org/abs/astro-ph/0602123
Publikováno v:
Astrophys.J. 643 (2006) 1160-1165
The latest results in the research of forming planetary systems have led several authors to compile a sample of candidates for searching for planets in the vicinity of the sun. Young stellar associations are indeed excellent laboratories for this stu
Externí odkaz:
http://arxiv.org/abs/astro-ph/0601573
Akademický článek
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Publikováno v:
Proceedings of the International Astronomical Union. 08/07/2008, Vol. 2 Issue S240, p690-696. 7p.
