Zobrazeno 1 - 10
of 164
pro vyhledávání: '"Feigelson, E. D."'
Autor:
Bonito, R., Venuti, L., Ustamujic, S., Yoachim, P., Street, R. A., Prisinzano, L., Hartigan, P., Guarcello, M. G., Stassun, K. G., Giannini, T., Feigelson, E. D., Garatti, A. Caratti o, Orlando, S., Clarkson, W. I., McGehee, P., Bellm, E. C., Gizis, J. E.
Vera C. Rubin Observatory, through the Legacy Survey of Space and Time (LSST), will allow us to derive a panchromatic view of variability in young stellar objects (YSOs) across all relevant timescales. Indeed, both short-term variability (on timescal
Externí odkaz:
http://arxiv.org/abs/2302.00897
This work extends previous kinematic studies of young stars in the Head of the Orion A cloud (OMC-1/2/3/4/5). It is based on large samples of infrared, optical, and X-ray selected pre-main sequence stars with reliable radial velocities and Gaia-deriv
Externí odkaz:
http://arxiv.org/abs/1905.10251
Autor:
de Souza, R. S., Dantas, M. L. L., Costa-Duarte, M. V., Feigelson, E. D., Killedar, M., Lablanche, P. -Y., Vilalta, R., Krone-Martins, A., Beck, R., Gieseke, F.
We invoke a Gaussian mixture model (GMM) to jointly analyse two traditional emission-line classification schemes of galaxy ionization sources: the Baldwin-Phillips-Terlevich (BPT) and $\rm W_{H\alpha}$ vs. [NII]/H$\alpha$ (WHAN) diagrams, using spect
Externí odkaz:
http://arxiv.org/abs/1703.07607
Autor:
Robberto, M., Soderblom, D. R., Bergeron, E., Kozhurina-Platais, V., Makidon, R. B., McCullough, P. R., McMaster, M., Panagia, N., Reid, I. N., Levay, Z., Frattare, L., Da Rio, N., Andersen, M., O'Dell, C. R., Stassun, K. G., Simon, M., Feigelson, E. D., Stauffer, J. R., Meyer, M., Reggiani, M., Krist, J., Manara, C. F., Romaniello, M., Hillenbrand, L. A., Ricci, L., Palla, F., Najita, J. R., Ananna, T. T., Scandariato, G., Smith, K.
The Hubble Space Telescope (HST) Treasury Program on the Orion Nebula Cluster has used 104 orbits of HST time to image the Great Orion Nebula region with the Advanced Camera for Surveys (ACS), the Wide-Field/Planetary Camera 2 (WFPC2) and the Near In
Externí odkaz:
http://arxiv.org/abs/1304.4866
Autor:
Gregory, S. G., Flaccomio, E., Argiroffi, C., Bouvier, J., Donati, J. -F., Feigelson, E. D., Getman, K. V., Hussain, G. A. J., Jardine, M., Walter, F. M.
V2129 Oph is a 1.35 solar mass classical T Tauri star, known to possess a strong and complex magnetic field. By extrapolating from an observationally derived magnetic surface map, obtained through Zeeman-Doppler imaging, models of V2129 Oph's corona
Externí odkaz:
http://arxiv.org/abs/0906.4880
Autor:
Sicilia-Aguilar, A., Bouwman, J., Juhasz, A., Henning, Th., Roccatagliata, V., Lawson, W. A., Acke, B., Feigelson, E. D., Tielens, A. G. G. M., Decin, L., Meeus, G.
Publikováno v:
Astrophys.J.701:1188-1203,2009
We present IRS spectra and revised MIPS photometry for the 18 members of the Eta Chamaeleontis cluster. Aged 8 Myr, the Eta Cha cluster is one of the few nearby regions within the 5-10 Myr age range, during which the disk fraction decreases dramatica
Externí odkaz:
http://arxiv.org/abs/0906.3365
Autor:
Prisinzano, L., Micela, G., Flaccomio, E., Stauffer, J. R., Megeath, T., Rebull, L., Robberto, M., Smith, K., Feigelson, E. D., Grosso, N., Wolk, S.
The origin and evolution of the X-rays in very young stellar objects (YSOs) are not yet well understood since it is very hard to observe YSOs in the protostellar phase. We study the X-ray properties of Class 0-I objects in the Orion Nebula Cluster (O
Externí odkaz:
http://arxiv.org/abs/0712.2975
Context. X-ray flares are common phenomena in pre-main sequence stars. Their analysis gives insights into the physics at work in young stellar coronae. The Orion Nebula Cluster offers a unique opportunity to study large samples of young low mass star
Externí odkaz:
http://arxiv.org/abs/0706.1500
Autor:
Tsujimoto, M., Feigelson, E. D., Townsley, L. K., Broos, P. S., Getman, K. V., Wang, J., Garmire, G. P., Baba, D., Nagayama, T., Tamura, M., Churchwell, E. B.
Publikováno v:
Astrophys.J.665:719-735,2007
We present the results of a high-resolution X-ray imaging study of the stellar population in the Galactic massive star-forming region RCW49 and its central OB association Westerlund 2. We obtained a 40 ks X-ray image of a 17'x17' field using the Chan
Externí odkaz:
http://arxiv.org/abs/0705.0702
Autor:
Maggio, A., Flaccomio, E., Favata, F., Micela, G., Sciortino, S., Feigelson, E. D., Getman, K. V.
Publikováno v:
Astrophys.J.660:1462-1479,2007
Following the Chandra Orion Ultradeep Project (COUP) observation, we have studied the chemical composition of the hot plasma in a sample of 146 X-ray bright pre-main sequence stars in the Orion Nebula Cluster. We report measurements of individual ele
Externí odkaz:
http://arxiv.org/abs/astro-ph/0703439