Zobrazeno 1 - 10
of 1 888
pro vyhledávání: '"Sozzetti A."'
Autor:
Nardiello, D., Murphy, J. M. Akana, Spinelli, R., Baratella, M., Desidera, S., Nascimbeni, V., Malavolta, L., Biazzo, K., Maggio, A., Locci, D., Benatti, S., Batalha, N. M., D'Orazi, V., Borsato, L., Piotto, G., Oelkers, R. J., Mallonn, M., Sozzetti, A., Bedin, L. R., Mantovan, G., Zingales, T., Affer, L., Bignamini, A., Bonomo, A. S., Cabona, L., Collins, K. A., Damasso, M., Filomeno, S., Ghedina, A., Harutyunyan, A., Lanza, A. F., Mancini, L., Rainer, M., Scandariato, G., Schwarz, R. P., Sefako, R., Srdoc, G.
Small-sized exoplanets in tight orbits around young stars (10-1000 Myr) give us the opportunity to investigate the mechanisms that led to their formation, the evolution of their physical and orbital properties and, especially, of their atmospheres. T
Externí odkaz:
http://arxiv.org/abs/2411.12795
Autor:
Naponiello, L., Bonomo, A. S., Mancini, L., Steinmeyer, M. L., Biazzo, K., Polychroni, D., Dorn, C., Turrini, D., Lanza, A. F., Sozzetti, A., Desidera, S., Damasso, M., Collins, K. A., Carleo, I., Collins, K. I., Colombo, S., D'Arpa, M. C., Dumusque, X., Gonzalez, M., Guilluy, G., Lorenzi, V., Mantovan, G., Nardiello, D., Pinamonti, M., Schwarz, R. P., Singh, V., Watkins, C. N., Zingales, T.
We examined in depth the star BD+00 444 (GJ 105.5, TOI-2443; V = 9.5 mag; d = 23.9 pc), with the aim of characterizing and confirming the planetary nature of its small companion, the planet candidate TOI-2443.01, which was discovered by TESS. We moni
Externí odkaz:
http://arxiv.org/abs/2411.09417
Autor:
Cretignier, M., Hara, N. C., Pietrow, A. G. M., Zhao, Y., Yu, H., Dumusque, X., Sozzetti, A., Lovis, C., Aigrain, S.
In our former paper I, we showed on the Sun that different active regions possess unique intensity profiles on the Ca II H & K lines. We now extend the analysis by showing how those properties can be used on real stellar observations, delivering more
Externí odkaz:
http://arxiv.org/abs/2411.00557
Autor:
Malbet, Fabien, Mamon, Gary A., Labadie, Lucas, Sozzetti, Alessandro, Lizzana, Manon, Lépine, Thierry, Léger, Alain, Lagage, Pierre-Olivier
Publikováno v:
International Conference on Space Optics ICSO'2024, Philippe KUBIK; Fr{\'e}d{\'e}ric BERNARD; Nikos KARAFOLAS; Kyriaki MINOGLOU, Oct 2024, Antibes (06), France
Astrometry is one of the oldest branches of astronomy which measures the position, the proper motion and parallax of celestial objects. Following the Hipparcos and Gaia missions that have measured several billions of them using global astrometry, we
Externí odkaz:
http://arxiv.org/abs/2410.23019
Autor:
D'Arpa, M. C., Guilluy, G., Mantovan, G., Biassoni, F., Spinelli, R., Sicilia, D., Locci, D., Maggio, A., Lanza, A. F., Petralia, A., Di Maio, C., Benatti, S., Bonomo, A. S., Borsa, F., Cabona, L., Desidera, S., Fossati, L., Micela, G., Malavolta, L., Mancini, L., Scandariato, G., Sozzetti, A., Stangret, M., Affer, L., Amadori, F., Basilicata, M., Bignamini, A., Boschin, W., Ghedina, A.
Atmospheric characterization is key to understanding exoplanetary systems, offering insights into the planets current and past conditions. By analyzing key lines like H alpha and the He I triplet, we can trace the evolution of planets through atmosph
Externí odkaz:
http://arxiv.org/abs/2410.15917
Autor:
Gosset, E., Damerdji, Y., Morel, T., Delchambre, L., Halbwachs, J. -L., Sadowski, G., Pourbaix, D., Sozzetti, A., Panuzzo, P., Arenou, F.
Gaia is an astrometric space experiment that is measuring positions, proper motions as well as parallaxes for a huge number of stars. It operates a medium-dispersion spectrometer, the RVS, that provides spectra and thus radial velocity time-series. T
Externí odkaz:
http://arxiv.org/abs/2410.14372
Autor:
Stangret, M., Fossati, L., D'Arpa, M. C., Borsa, F., Nascimbeni, V., Malavolta, L., Sicilia, D., Pino, L., Biassoni, F., Bonomo, A. S., Brogi, M., Claudi, R., Damasso, M., Di Maio, C., Giacobbe, P., Guilluy, G., Harutyunyan, A., Lanza, A. F., Fiorenzano, A. F. Martinez, Mancini, L., Nardiello, D., Scandariato, G., Sozzetti, A., Zingales, T.
Ultra-hot Jupiters (UHJs) are gas giant planets orbiting close to their host star, with equilibrium temperatures exceeding 2000 K, and among the most studied planets in terms of their atmospheric composition. Thanks to a new generation of ultra-stabl
Externí odkaz:
http://arxiv.org/abs/2410.11731
Autor:
Hernandez, J. I. Gonzalez, Mascareno, A. Suarez, Silva, A. M., Stefanov, A. K., Faria, J. P., Tabernero, H. M., Sozzetti, A., Rebolo, R., Pepe, F., Santos, N. C., Cristiani, S., Lovis, C., Dumusque, X., Figueira, P., Lillo-Box, J., Nari, N., Benatti, S., Hobson, M. J., Castro-Gonz'alez, A., Allart, R., Passegger, V. M., Osorio, M. -R. Zapatero, Adibekyan, V., Alibert, Y., Prieto, C. Allende, Bouchy, F., Damasso, M., D'Odorico, V., Di Marcantonio, P., Ehrenreich, D., Curto, G. Lo, Santos, R. G'enova, Martins, C. J. A. P., Mehner, A., Micela, G., Molaro, P., Nunes, N., Palle, E., Sousa, S. G., Udry, S.
Publikováno v:
A&A, 690, A79 (2024)
Barnard's star is a primary target within the ESPRESSO guaranteed time observations (GTO) as it is the second closest neighbour to our Sun after the $\alpha$ Centauri stellar system. We present here a large set of 156 ESPRESSO observations of Barnard
Externí odkaz:
http://arxiv.org/abs/2410.00569
Autor:
Stangret, M., Palle, E., Esparza-Borges, E., Miquel, J. Orell, Casasayas-Barris, N., Osorio, M. R. Zapatero, Cristo, E., Allart, R., Alibert, Y., Borsa, F., Demangeon, O. D. S., Di Marcantonio, P., Ehrenreich, D., Figueira, P., Hernandez, J. I. Gonzalez, Herrero-Cisneros, E., Martins, C. J. A. P., Santos, N. C., Seidel, J. V., Silva, T. Azevedo, Sozzetti, A., Steiner, M., Mascareno, A. Suarez, Udry, S.
Thanks to their short orbital periods and hot extended atmospheres, hot Jupiters are ideal candidates for atmosphere studies with high-resolution spectroscopy. New stable spectrographs help improve our understanding of the evolution and composition o
Externí odkaz:
http://arxiv.org/abs/2410.00800
Autor:
Silva, A. R. Costa, Demangeon, O. D. S., Santos, N. C., Ehrenreich, D., Lovis, C., Chakraborty, H., Lendl, M., Pepe, F., Cristiani, S., Rebolo, R., Zapatero-Osorio, M. R., Adibekyan, V., Alibert, Y., Allart, R., Prieto, C. Allende, Silva, T. Azevedo, Borsa, F., Bourrier, V., Cristo, E., Di Marcantonio, P., Esparza-Borges, E., Figueira, P., Hernández, J. I. González, Herrero-Cisneros, E., Curto, G. Lo, Martins, C. J. A. P., Mehner, A., Nunes, N. J., Palle, E., Pelletier, S., Seidel, J. V., Silva, A. M., Sousa, S. G., Sozzetti, A., Steiner, M., Mascareño, A. Suárez, Udry, S.
Publikováno v:
Astronomy & Astrophysics, 689, A8, 15 (2024)
Ultra hot Jupiters (gas giants, Teq>2000 K) are intriguing exoplanets due to their extreme atmospheres. Their torrid daysides can be characterised using ground-based high-resolution emission spectroscopy. We search for signatures of neutral and singl
Externí odkaz:
http://arxiv.org/abs/2409.13519