Zobrazeno 1 - 10
of 331
pro vyhledávání: '"Argiroffi C"'
Publikováno v:
A&A 690, A383 (2024)
The evaporation and the chemistry of the atmospheres of warm and hot planets are strongly determined by the high-energy irradiation they receive from their parent stars. This is more crucial among young extra-solar systems, due to the high activity o
Externí odkaz:
http://arxiv.org/abs/2409.07229
Autor:
Anastasopoulou, K., Guarcello, M. G., Flaccomio, E., Sciortino, S., Benatti, S., De Becker, M., Wright, N. J., Drake, J., Albacete-Colombo, J. F., Andersen, M., Argiroffi, C., Bayo, A., Castellanos, R., Gennaro, M., Grebel, E. K., Miceli, M., Najarro, F., Negueruela, I., Prisinzano, L., Ritchie, B., Robberto, M., Sabbi, E., Zeidler, P.
We present the most comprehensive and deepest X-ray study to date of the properties of the richest Wolf-Rayet (WR) population observed in a single stellar cluster, Westerlund 1 (Wd1). This work is based on 36 Chandra observations obtained from the "E
Externí odkaz:
http://arxiv.org/abs/2408.11087
Autor:
Cozzo, G., Reid, J., Pagano, P., Reale, F., Testa, P., Hood, A. W., Argiroffi, C., Petralia, A., Alaimo, E., D'Anca, F., Sciortino, L., Todaro, M., Cicero, U. Lo, Barbera, M., De Pontieu, B., Martinez-Sykora, J.
MHD kink instability can trigger the fragmentation of a twisted magnetic flux tube into small-scale current sheets that dissipate as aperiodic impulsive heating events. This instability propagates as an avalanche to nearby flux tubes and leads to a n
Externí odkaz:
http://arxiv.org/abs/2406.11701
Autor:
Guarcello, M. G., Flaccomio, E., Albacete-Colombo, J. F., Almendros-Abad, V., Anastasopoulou, K., Andersen, M., Argiroffi, C., Bayo, A., Bartlett, E. S., Bastian, N., De Becker, M., Best, W., Bonito, R., Borghese, A., Calzetti, D., Castellanos, R., Cecchi-Pestellini, C., Clark, S., Clarke, C. J., Zelati, F. Coti, Damiani, F., Drake, J. J., Gennaro, M., Ginsburg, A., Grebel, E. K., Hora, J. L., Israel, G. L., Lawrence, G., Locci, D., Mapelli, M., Martinez-Galarza, J. R., Micela, G., Miceli, M., Moraux, E., Muzic, K., Najarro, F., Negueruela, I., Nota, A., Pallanca, C., Prisinzano, L., Ritchie, B., Robberto, M., Rom, T., Sabbi, E., Scholz, A., Sciortino, S., Trigilio, C., Umana, G., Winter, A., Wright, N. J., Zeidler, P.
Context. With a mass exceeding several 10^4 solar masses and a rich and dense population of massive stars, supermassive young star clusters represent the most massive star-forming environment that is dominated by the feedback from massive stars and g
Externí odkaz:
http://arxiv.org/abs/2312.08947
Autor:
Maggio, A., Pillitteri, I., Argiroffi, C., Benatti, S., Sanz-Forcada, J., D'Orazi, V., Biazzo, K., Borsa, F., Cabona, L., Claudi, R., Desidera, S., Locci, D., Nardiello, D., Mancini, L., Micela, G., Rainer, M., Spinelli, R., Bignamini, A., Damasso, M.
Atmospheric mass loss plays a major role in the evolution of exoplanets. This process is driven by the stellar high-energy irradiation, especially in the first hundreds of millions of years after dissipation of the proto-planetary disk. A major sourc
Externí odkaz:
http://arxiv.org/abs/2305.06931
We present a detailed analysis of a superflare on the active M dwarf star AD Leonis. The event presents a rare case of a stellar flare observed simultaneously in X-rays (with XMM-Newton) and in optical (with the Transiting Exoplanet Survey Satellite,
Externí odkaz:
http://arxiv.org/abs/2209.05068
Autor:
Pillitteri, I., Argiroffi, C., Maggio, A., Micela, G., Benatti, S., Reale, F., Colombo, S., Wolk, S. J.
Publikováno v:
A&A 666, A198 (2022)
Abridged. We observed the 40 Myr old star DS Tuc A with XMM-Newton and recorded two X-ray bright flares, with the second event occurring about 12 ks after the first one. Their duration from the rise to the end of the decay was of about 8-10 ks in sof
Externí odkaz:
http://arxiv.org/abs/2208.07415
Autor:
Matsakos T., Chièze J.-P., Stehlé C., González M., Ibgui L., de Sá L., Lanz T., Orlando S., Bonito R., Argiroffi C., Reale F., Peres G.
Publikováno v:
EPJ Web of Conferences, Vol 64, p 04003 (2014)
The dynamics of YSO accretion shocks is determined by radiative processes as well as the strength and structure of the magnetic field. A quasi-periodic emission signature is theoretically expected to be observed, but observations do not confirm any s
Externí odkaz:
https://doaj.org/article/3f3ea43979904458b868767b77f6bb37
Autor:
Gregory S. G., Holzwarth V. R., Donati J.-F., Hussain G. A. J., Montmerle T., Alecian E., Alencar S. H. P., Argiroffi C., Audard M., Bouvier J., Damiani F., Güdel M., Huenemoerder D. P., Kastner J. H., Maggio A., Sacco G. G., Wade G. A.
Publikováno v:
EPJ Web of Conferences, Vol 64, p 08009 (2014)
V4046 Sagittarii AB is a close short-period classical T Tauri binary. It is a circularised and synchronised system accreting from a circumbinary disk. In 2009 it was observed as part of a coordinated program involving near-simultaneous spectropolarim
Externí odkaz:
https://doaj.org/article/a1197a9bed4f4fdb868be9cbb6f17acd
Autor:
Burdonov, K., Bonito, R., Giannini, T., Aidakina, N., Argiroffi, C., Beard, J., Chen, S. N., Ciardi, A., Ginzburg, V., Gubskiy, K., Gundorin, V., Gushchin, M., Kochetkov, A., Korobkov, S., Kuzmin, A., Kuznetsov, A., Pikuz, S., Revet, G., Ryazantsev, S., Shaykin, A., Shaykin, I., Soloviev, A., Starodubtsev, M., Strikovskiy, A., Yao, W., Yakovlev, I., Zemskov, R., Zudin, I., Khazanov, E., Orlando, S., Fuchs, J.
Publikováno v:
A&A 648, A81 (2021)
Aims. EXor-type objects are protostars that display powerful UV-optical outbursts caused by intermittent and powerful events of magnetospheric accretion. These objects are not yet well investigated and are quite difficult to characterize. Several par
Externí odkaz:
http://arxiv.org/abs/2102.08156