Zobrazeno 1 - 10
of 760
pro vyhledávání: '"Alcala J"'
Autor:
Armeni, A., Stelzer, B., Frasca, A., Manara, C. F., Walter, F. M., Alcalá, J. M., Schneider, P. C., Sicilia-Aguilar, A., Campbell-White, J., Fiorellino, E., Gameiro, J. F., Gangi, M.
The aim of this work is to characterize the accretion process of the classical T Tauri Star RU Lup. We studied optical high-resolution spectroscopic observations from CHIRON and ESPRESSO, obtained simultaneously with photometric data from AAVSO and T
Externí odkaz:
http://arxiv.org/abs/2408.14996
Autor:
Claes, R. A. B., Campbell-White, J., Manara, C. F., Frasca, A., Natta, A., Alcalá, J. M., Armeni, A., Fang, M., Lovell, J. B., Stelzer, B., Venuti, L., Wyatt, M., Queitsch, A.
Studies of the stellar and accretion properties of classical T Tauri stars (CTTS) require comparison with photospheric spectral templates. Here we aim at expanding the currently available grid of wide-wavelength coverage observed spectra of non-accre
Externí odkaz:
http://arxiv.org/abs/2407.11866
Autor:
Saracco, P., Conconi, P., Arcidiacono, C., Portaluri, E., Mahmoodzadeh, H., D'Orazi, V., Fedele, D., Gargiulo, A., Vanzella, E., Franzetti, P., Arosio, I., Barbalini, L., Lops, G., Molinari, E., Cascone, E., Cianniello, V., D'Auria, D., De Caprio, V., Di Antonio, I., Di Francesco, B., Di Rico, G., Eredia, C., Fumana, M., Greggio, D., Rodeghiero, G., Scalera, M., Alcala', J. M., Bisogni, S., Bonito, R., Bono, G., Garatti, A. Caratti o, Bonta', E. Dalla, Dall'Ora, M., Fiorentino, G., Gallazzi, A. R., Guarcello, M., Izzo, L., La Barbera, F., Lardo, C., Longhetti, M., Longobardo, A., Magrini, L., Mancini, C., Mura, A., Piconcelli, E., Pizzella, A., Podio, L., Polletta, M., Prisinzano, L., Ricci, F., Ripepi, V., Roccatagliata, V., Vietri, G.
The Extremely Large Telescopes (ELTs), thanks to their large apertures and cutting-edge Multi-Conjugate Adaptive Optics (MCAO) systems, promise to deliver sharper and deeper data even than the JWST. SHARP is a concept study for a near-IR (0.95-2.45 $
Externí odkaz:
http://arxiv.org/abs/2407.06264
Autor:
Nisini, B., Navarro, M. G., Giannini, T., Antoniucci, S., Kavanagh, P. J., Hartigan, P., Bacciotti, F., Garatti, A. Caratti o, Crespo, A. Noriega, van Dishoek, E., Whelan, E., Arce, H. G., Cabrit, S., Coffey, D., Fedele, D., Eisloeffel, J., Palumbo, M. E., Podio, L., Ray, T. P., Schultze, M., Urso, R. G., Alcala', J. M., Bautista, M. A., Codella, C., Greene, T. G., Manara, C. F.
We present the first results of the JWST program PROJECT-J (PROtostellar JEts Cradle Tested with JWST ), designed to study the Class I source HH46 IRS and its outflow through NIRSpec and MIRI spectroscopy (1.66 to 28 micron). The data provide line-im
Externí odkaz:
http://arxiv.org/abs/2404.06878
Autor:
Almendros-Abad, V., Manara, C. F., Testi, L., Natta, A., Claes, R. A. B., Muzic, K., Sanchis, E., Alcalá, J. M., Bayo, A., Scholz, A.
The time evolution of the dependence of the mass accretion rate with the stellar mass and the disk mass represents a fundamental way to understand the evolution of protoplanetary disks and the formation of planets. In this work, we present observatio
Externí odkaz:
http://arxiv.org/abs/2402.10523
Autor:
Armeni, A., Stelzer, B., Claes, R. A. B., Manara, C. F., Frasca, A., Alcalá, J. M., Walter, F. M., Kóspál, Á., Campbell-White, J., Gangi, M., Mauco, K., Tychoniec, L.
Publikováno v:
A&A 679, A14 (2023)
HM Lup is a young M-type star that accretes material from a circumstellar disk through a magnetosphere. Our aim is to study the inner disk structure of HM Lup and to characterize its variability. We used spectroscopic data from HST/STIS, X-Shooter, a
Externí odkaz:
http://arxiv.org/abs/2309.10591
Autor:
Maucó, K., Manara, C. F., Ansdell, M., Bettoni, G., Claes, R., Alcala, J., Miotello, A., Facchini, S., Haworth, T. J., Lodato, G., Williams, J. P.
Publikováno v:
A&A 679, A82 (2023)
The evolution of protoplanetary disks is regulated by an interplay of several processes, either internal to the system or related to the environment. As most of the stars and planets have formed in massive stellar clusters, studying the effects of UV
Externí odkaz:
http://arxiv.org/abs/2309.05651
Autor:
de Miera, F. Cruz-Sáenz, Kóspál, Á., Ábrahám, P., Claes, R. A. B., Manara, C. F., Wendeborn, J., Fiorellino, E., Giannini, T., Nisini, B., Sicilia-Aguilar, A., Campbell-White, J., Alcalá, J. M., Banzatti, A., Szabó, Zs. M., Lykou, F., Antoniucci, S., Varga, J., Siwak, M., Park, S., Nagy, Zs., Kun, M.
Publikováno v:
A&A 678, A88 (2023)
EX Lupi is the prototype by which EXor-type outbursts were defined. It has experienced multiple accretion-related bursts and outbursts throughout the last decades, whose study have greatly extended our knowledge about the effects of these types of ev
Externí odkaz:
http://arxiv.org/abs/2308.02849
Autor:
Gangi, M., Nisini, B., Manara, C. F., France, K., Antoniucci, S., Biazzo, K., Giannini, T., Herczeg, G. J., Alcalá, J. M., Frasca, A., Maucó, K., Campbell-White, J., Siwak, M., Venuti, L., Schneider, P. C., Kóspál, Á., Garatti, A. Caratti o, Fiorellino, E., Rigliaco, E., Yadav, R. K.
Publikováno v:
A&A 675, A153 (2023)
Observing the spatial distribution and excitation processes of atomic and molecular gas in the inner regions (< 20 au) of young (< 10 Myr) protoplanetary disks helps us to understand the conditions for the formation and evolution of planetary systems
Externí odkaz:
http://arxiv.org/abs/2305.18940
Autor:
Majidi, F. Z., Alcala', J. M., Frasca, A., Desidera, S., Manara, C. F., Beccari, G., D'Orazi, V., Bayo, A., Biazzo, K., Claudi, R., Covino, E., Mantovan, G., Montalto, M., Nardiello, D., Piotto, G., Rigliaco, E.
Publikováno v:
A&A 671, A46 (2023)
We characterize twelve young stellar objects (YSOs) located in the Lupus I region, spatially overlapping with the Upper Centaurus Lupus (UCL) sub-stellar association. The aim of this study is to understand whether the Lupus I cloud has more members t
Externí odkaz:
http://arxiv.org/abs/2301.04463