Zobrazeno 1 - 10
of 218
pro vyhledávání: '"Rosotti, G."'
Autor:
Fasano, D., Winter, A. J., Benisty, M., Rosotti, G., Ruzza, A., Lodato, G., Toci, C., Hilder, T., Izquierdo, A., Price, D.
Publikováno v:
A&A 687, A223 (2024)
Detecting protoplanets during their formation stage is an important but elusive goal of modern astronomy. Kinematic detections via the spiral wakes in the gaseous disc are a promising avenue to achieve this goal. We aim to test the applicability to o
Externí odkaz:
http://arxiv.org/abs/2405.15611
Publikováno v:
A&A 687, A263 (2024)
Column density ratios of complex organic molecules are generally constant across protostellar systems with some low-level scatter. However, the scatter in formamide (NH$_2$CHO) to methanol (CH$_3$OH) column density ratio is one of the highest. This l
Externí odkaz:
http://arxiv.org/abs/2404.10045
Autor:
Lebreuilly, U., Hennebelle, P., Colman, T., Maury, A., Tung, N. -D., Testi, L., Klessen, R., Molinari, S., Commerçon, B., González, M., Pacetti, E., Somigliana, A., Rosotti, G.
Protostellar disks are the product of angular momentum conservation during the protostellar collapse. Understanding their formation is crucial because they are the birthplace of planets and because their formation is tightly related to star formation
Externí odkaz:
http://arxiv.org/abs/2310.19672
Constraining the strength of gas turbulence in protoplanetary discs is an open problem that has relevant implications for the physics of gas accretion and planet formation. In this work, we gauge the amount of turbulence in 6 of the discs observed in
Externí odkaz:
http://arxiv.org/abs/2307.11150
We show that the distribution of observed accretion rates is a powerful diagnostic of protoplanetary disc physics. Accretion due to turbulent ("viscous") transport of angular momentum results in a fundamentally different distribution of accretion rat
Externí odkaz:
http://arxiv.org/abs/2306.17218
Publikováno v:
A&A 671, A107 (2023)
Complex organic molecules are only detected toward a fraction of high-mass protostars. The goal of this work is to investigate whether high-mass disks can explain the lack of methanol emission from some massive protostellar systems. We consider an en
Externí odkaz:
http://arxiv.org/abs/2211.00126
Autor:
Claes, R. A. B., Manara, C. F., Garcia-Lopez, R., Natta, A., Fang, M., Fockter, Z. P., Ábrahám, P., Alcalá, J. M., Campbell-White, J., Garatti, A. Caratti o, Covino, E., Fedele, D., Frasca, A., Gameiro, J. F., Herczeg, G. J., Kóspál, Á., Petr-Gotzens, M. G., Rosotti, G., Venuti, L., Zsidi, G.
Publikováno v:
A&A 664, L7 (2022)
The processes regulating protoplanetary disk evolution are constrained by studying how mass accretion rates scale with stellar and disk properties. The spread in these relations can be used as a constraint to the models of disk evolution, but only if
Externí odkaz:
http://arxiv.org/abs/2208.01447
Autor:
Guidi, G., Isella, A., Testi, L., Chandler, C. J., Liu, H. B., Schmid, H. M., Rosotti, G., Meng, C., Jennings, J., Williams, J. P., Carpenter, J. M., de Gregorio-Monsalvo, I., Li, H., Liu, S. F., Ortolani, S., Quanz, S. P., Ricci, L., Tazzari, M.
Publikováno v:
A&A 664, A137 (2022)
In this paper we analyze new observations from ALMA and VLA, at a high angular resolution corresponding to 5 - 8 au, of the protoplanetary disk around HD 163296 to determine the dust spatial distribution and grain properties. We fit the spectral ener
Externí odkaz:
http://arxiv.org/abs/2207.01496
Autor:
Pinilla, P., Benisty, M., Kurtovic, N. T., Bae, J., Dong, R., Zhu, Z., Andrews, S., Carpenter, J., Ginski, C., Huang, J., Isella, A., Pérez, L., Ricci, L., Rosotti, G., Villenave, M., Wilner, D.
Publikováno v:
A&A 665, A128 (2022)
[abridged] We present new scattered light and millimeter observations of the protoplanetary disk around LkH$\alpha\,330$, using SPHERE/VLT and ALMA, respectively. The scattered-light SPHERE observations reveal an asymmetric ring at around 45au from t
Externí odkaz:
http://arxiv.org/abs/2206.09975
Recent studies on the planet-dominated regime of Type II migration showed that, contrary to the conventional wisdom, massive planets can migrate outwards. Using `fixed-planet' simulations these studies found a correlation between the sign of the torq
Externí odkaz:
http://arxiv.org/abs/2206.08389