Zobrazeno 1 - 10
of 1 903
pro vyhledávání: '"Sozzetti A"'
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
Autor:
D'Arpa, M. C., Saba, A., Borsa, F., Fossati, L., Micela, G., Di Maio, C., Stangret, M., Tripodo, G., Affer, L., Bonomo, A. S., Benatti, S., Brogi, M., Fardella, V., Lanza, A. F., Guilluy, G., Maldonado, J., Mantovan, G., Nascimbeni, V., Pino, L., Scandariato, G., Sicilia, D., Sozzetti, A., Spinelli, R., Andreuzzi, G., Bignamini, A., Claudi, R., Desidera, S., Ghedina, A., Knapic, C., Lorenzi, V.
Publikováno v:
A&A 690, A237 (2024)
We analysed six primary transits of the ultra-hot Jupiter KELT-9,b obtained with the HARPS-N high-resolution spectrograph in the context of the Global Architecture of Planetary Systems (GAPS2) project, to characterise the atmosphere via single-line a
Externí odkaz:
http://arxiv.org/abs/2409.01779
Autor:
Filomeno, S., Biazzo, K., Baratella, M., Benatti, S., D'Orazi, V., Desidera, S., Mancini, L., Messina, S., Polychroni, D., Turrini, D., Cabona, L., Carleo, I., Damasso, M., Malavolta, L., Mantovan, G., Nardiello, D., Scandariato, G., Sozzetti, A., Zingales, T., Andreuzzi, G., Antoniucci, S., Bignamini, A., Bonomo, A. S., Claudi, R., Cosentino, R., Fiorenzano, A. F. M., Fonte, S., Harutyunyan, A., Knapic, C.
The study of exoplanets at different evolutionary stages can shed light on their formation, migration, and evolution. The determination of exoplanet properties depends on the properties of their host stars. It is therefore important to characterise t
Externí odkaz:
http://arxiv.org/abs/2409.00675
Autor:
Malbet, F., Lizzana, M., Pancher, F., Soler, S., Léger, A., Lépine, T., Mamon, G. A., Sozzetti, A., Riva, A., Busonero, D., Labadie, L., Lagage, P. -O., Goullioud, R.
Publikováno v:
SPIE 13092, 130920B (2024)
With sub-microarcsecond angular accuracy, the \theia telescope will be capable of revealing the architectures of nearby exoplanetary systems down to the mass of Earth. This research addresses the challenges inherent in space astrometry missions, focu
Externí odkaz:
http://arxiv.org/abs/2408.15929
Autor:
Damasso, M., Locci, D., Benatti, S., Maggio, A., Baratella, M., Desidera, S., Biazzo, K., Palle, E., Wang, S., Nardiello, D., Borsato, L., Bonomo, A. S., Messina, S., Nowak, G., Goyal, A., Bejar, V. J. S., Bignamini, A., Cabona, L., Carleo, I., Claudi, R., Cosentino, R., Filomeno, S., Knapic, C., Lodieu, N., Lorenzi, V., Malavolta, L., Mallorquin, M., Mancini, L., Mantovan, G., Micela, G., Murgas, F., Orell-Miquel, J., Pedani, M., Pinamonti, M., Sozzetti, A., Spinelli, R., Osorio, M. R. Zapatero, Zingales, T.
Publikováno v:
A&A 690, A235 (2024)
We collected more than 300 high-resolution spectra of the 300 Myr old star BD+40 2790 (TOI-2076) over ~3 years. This star hosts three transiting planets discovered by TESS, with orbital periods ~10, 21, and 35 days. BD+40 2790 shows an activity-induc
Externí odkaz:
http://arxiv.org/abs/2408.10629
Autor:
Rescigno, F., Mortier, A., Dumusque, X., Lakeland, B. S., Haywood, R., Piskunov, N., Nicholson, B. A., López-Morales, M., Dalal, S., Cretignier, M., Klein, B., Cameron, A. Collier, Ghedina, A., Gonzalez, M., Cosentino, R., Sozzetti, A., Saar, S. H.
This work focuses on the analysis of the mean longitudinal magnetic field as a stellar activity tracer in the context of small exoplanet detection and characterisation in radial-velocity (RV) surveys. We use SDO/HMI filtergrams to derive Sun-as-a-sta
Externí odkaz:
http://arxiv.org/abs/2406.20023