Zobrazeno 1 - 10
of 720
pro vyhledávání: '"Favata F"'
Autor:
Orlando, S., Favata, F., Micela, G., Sciortino, S., Maggio, A., Schmitt, J. H. M. M., Robrade, J., Mittag, M.
Publikováno v:
A&A 605, A19 (2017)
Aims. The data set of the long-term XMM-Newton monitoring program of HD 81809 is analyzed to study its X-ray cycle, to investigate if the latter is related to the chromospheric one, to infer the structure of the corona of HD 81809, and to explore if
Externí odkaz:
http://arxiv.org/abs/1707.06437
Autor:
Rebull, L. M., Cody, A. M., Covey, K. R., Guenther, H. M., Hillenbrand, L. A., Plavchan, P., Poppenhaeger, K., Stauffer, J. R., Wolk, S. J., Gutermuth, R., Morales-Calderon, M., Song, I., Barrado, D., Bayo, A., James, D., Hora, J. L., Vrba, F. J., de Oliveira, C. Alves, Bouvier, J., Carey, S. J., Carpenter, J. M., Favata, F., Flaherty, K., Forbrich, J., Hernandez, J., McCaughrean, M. J., Megeath, S. T., Micela, G., Smith, H. A., Terebey, S., Turner, N., Allen, L., Ardila, D., Bouy, H., Guieu, S.
The YSOVAR (Young Stellar Object VARiability) Spitzer Space Telescope observing program obtained the first extensive mid-infrared (3.6 & 4.5 um) time-series photometry of the Orion Nebula Cluster plus smaller footprints in eleven other star-forming c
Externí odkaz:
http://arxiv.org/abs/1408.6756
Publikováno v:
A&A 567, A39 (2014)
The main goal of this work is to characterize the mass accretion and ejection processes of the classical T Tauri star V354 Mon, a member of the young stellar cluster NGC 2264. In March 2008, photometric and spectroscopic observations of V354 Mon were
Externí odkaz:
http://arxiv.org/abs/1405.6988
We use X-ray observations of the nearby binaries 61 Cyg A/B (K5V and K7V) and Alpha Cen A/B (G2V and K1V) to study the long-term evolution of magnetic activity in weakly to moderately active G + K dwarfs over nearly a decade. Specifically we search f
Externí odkaz:
http://arxiv.org/abs/1205.3627
Autor:
Caramazza, M., Micela, G., Prisinzano, L., Sciortino, S., Damiani, F., Favata, F., Stauffer, J. R., Vallenari, A., Wolk, S. J.
We investigate the X-ray properties of NGC 1893, a young cluster (~ 1-2 Myr) in the outer part of the Galaxy (galactic radius \geq 11 kpc) where we expect differences in the disk evolution and in the mass distribution of the stars, to explore the X-r
Externí odkaz:
http://arxiv.org/abs/1112.0482
X-ray emission from about ten protostellar jets has been discovered and it appears as a feature common to the most energetic jets. Although X-ray emission seems to originate from shocks internal to jets, the mechanism forming these shocks remains con
Externí odkaz:
http://arxiv.org/abs/1105.4081
Autor:
Morales-Calderón, M., Stauffer, J. R., Hillenbrand, L. A., Gutermuth, R., Song, I., Rebull, L. M., Plavchan, P., Carpenter, J. M., Whitney, B. A., Covey, K., de Oliveira, C. Alves, Winston, E., McCaughrean, M. J., Bouvier, J., Guieu, S., Vrba, F. J., Holtzman, J., Marchis, F., Hora, J. L., Wasserman, L. H., Terebey, S., Megeath, T., Guinan, E., Forbrich, J., Huélamo, N., Riviere-Marichalar, P., Barrado, D., Stapelfeldt, K., Hernández, J., Allen, L. E., Ardila, D. R., Bayo, A., Favata, F., James, D., Werner, M., Wood, K.
We present initial results from time series imaging at infrared wavelengths of 0.9 sq. degrees in the Orion Nebula Cluster (ONC). During Fall 2009 we obtained 81 epochs of Spitzer 3.6 and 4.5 micron data over 40 consecutive days. We extracted light c
Externí odkaz:
http://arxiv.org/abs/1103.5238
Optical and X-ray emission from classical T Tauri stars (CTTSs) has long been known to be highly variable. Our long, uninterrupted optical observation of the NGC2264 region with CoRoT allows the optical variability in CTTS to be studied with unpreced
Externí odkaz:
http://arxiv.org/abs/1006.0041
Autor:
Alencar, S. H. P., Teixeira, P. S., Guimaraes, M. M., McGinnis, P. T., Gameiro, J. F., Bouvier, J., Aigrain, S., Flaccomio, E., Favata, F.
The young cluster NGC 2264 was observed with the Corot satellite for 23 days uninterruptedly in March 2008 with unprecedent photometric accuracy. We present here the first results of the analysis of the accreting population. We intended to look for p
Externí odkaz:
http://arxiv.org/abs/1005.4384
Protostellar jets are known to emit in a wide range of bands, from radio to IR to optical bands, and to date also about ten X-ray emitting jets have been detected, with a rate of discovery of about one per year. We aim at investigating the mechanism
Externí odkaz:
http://arxiv.org/abs/1005.2125