Zobrazeno 1 - 10
of 72
pro vyhledávání: '"Da Rio, N."'
Autor:
Manara, C. F., Beccari, G., Da Rio, N., De Marchi, G., Natta, A., Ricci, L., Robberto, M., Testi, L.
Current planet formation models are largely based on the observational constraint that protoplanetary disks have lifetime 3Myr. Recent studies, however, report the existence of PMS stars with signatures of accretion (strictly connected with the prese
Externí odkaz:
http://arxiv.org/abs/1307.8118
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:
Manara, C. F., Robberto, M., Da Rio, N., Lodato, G., Hillenbrand, L. A., Stassun, K. G., Soderblom, D. R.
The present observational understanding of the evolution of the mass accretion rates (Macc) in pre-main sequence stars is limited by the lack of accurate measurements of Macc over homogeneous and large statistical samples of young stars. Such observa
Externí odkaz:
http://arxiv.org/abs/1206.4319
Autor:
Robberto, M., Spina, L., Da Rio, N., Apai, D., Pascucci, I., Ricci, L., Goddi, C., Testi, L., Palla, F., Bacciotti, F.
We present new HST/WFPC2 observations of 20 fields centered around T Tauri stars in the Chamaeleon I star forming region. Images have been obtained in the F631N ([OI]6300A), F656N (Ha) and F673N ([SII]6716A+6731A) narrow-band filters, plus the Johnso
Externí odkaz:
http://arxiv.org/abs/1205.2727
We present a spectroscopic study of the most massive stars in the young (4 Myr old) stellar cluster LH 95 in the Large Magellanic Cloud. This analysis allows us to complete the census of the stellar population of the system, previously investigated b
Externí odkaz:
http://arxiv.org/abs/1203.0305
Aims. We present a study of the distribution of stellar ages in the Orion Nebula Cluster (ONC) based on accurate HST photometry taken from the HST Treasury Program observations of the ONC utilizing the most recent estimate of the cluster's distance (
Externí odkaz:
http://arxiv.org/abs/1108.1015
Autor:
Rochau, B., Brandner, W., Stolte, A., Henning, T., Da Rio, N., Gennaro, M., Hormuth, F., Marchetti, E., Amico, P.
MAD is the first multi-conjugated adaptive optics system at the VLT. We present H and Ks observations of the young massive cluster Trumpler 14 revealing the power of MCAO systems by providing a homogeneous Strehl ratio over a large field of view. Mea
Externí odkaz:
http://arxiv.org/abs/1108.0905
Autor:
Robberto, M., Soderblom, D. R., Scandariato, G., Smith, K., Da Rio, N., Pagano, I., Spezzi, L.
We present J, H and K photometry of the Orion Nebula Cluster obtained at the CTIO/Blanco 4 m telescope in Cerro Tololo with the ISPI imager. From the observations we have assembled a catalog of about 7800 sources distributed over an area of approxima
Externí odkaz:
http://arxiv.org/abs/0910.4194
We have found a photoevaporated disk in the Orion Nebula that includes a wide binary. HST/ACS observations of the proplyd 124-132 show two point-like sources separated by 0".15, or about 60 AU at the distance of Orion. The two sources have nearly ide
Externí odkaz:
http://arxiv.org/abs/0809.3208
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