Zobrazeno 1 - 10
of 188
pro vyhledávání: '"Megevand, D."'
Autor:
Martins, C. J. A. P., Cristiani, S., Cupani, G., D'Odorico, V., Santos, R. Génova, Leite, A. C. O., Marques, C. M. J., Milaković, D., Molaro, P., Murphy, Michael T., Nunes, N. J., Schmidt, Tobias M., Adibekyan, V., Alibert, Y., Di Marcantonio, Paolo, Hernández, J. I. González, Mégevand, D., Palle, E., Pepe, F. A., Santos, N. C., Sousa, S. G., Sozzetti, A., Mascareño, A. Suárez, Osorio, M. R. Zapatero
Dynamical scalar fields in an effective four-dimensional field theory are naturally expected to couple to the rest of the theory's degrees of freedom, unless some new symmetry is postulated to suppress these couplings. In particular, a coupling to th
Externí odkaz:
http://arxiv.org/abs/2205.13848
Autor:
Silva, A. M., Faria, J. P., Santos, N. C., Sousa, S. G., Viana, P. T. P., Martins, J. H. C., Figueira, P., Lovis, C., Pepe, F., Cristiani, S., Rebolo, R., Allart, R., Cabral, A., Mehner, A., Sozzetti, A., Mascareño, A. Suárez, Martins, C. J. A. P., Ehrenreich, D., Mégevand, D., Palle, E., Curto, G. Lo, Tabernero, H. M., Lillo-Box, J., Hernández, J. I. González, Osorio, M. R. Zapatero, Hara, N. C., Nunes, N. J., Di Marcantonio, P., Udry, S., Adibekyan, V., Dumusque, X.
Publikováno v:
A&A 663, A143 (2022)
The detection and characterization of an increasing variety of exoplanets has been in part possible thanks to the continuous development of high-resolution, stable spectrographs, and using the Doppler radial-velocity (RV) method. The Cross Correlatio
Externí odkaz:
http://arxiv.org/abs/2205.00067
Autor:
Bourrier, V., Osorio, M. R. Zapatero, Allart, R., Attia, O., Cretignier, M., Dumusque, X., Lovis, C., Adibekyan, V., Borsa, F., Figueira, P., Hernández, J. I. González, Mehner, A., Santos, N. C., Schmidt, T., Seidel, J. V., Sozzetti, A., Alibert, Y., Casasayas-Barris, N., Ehrenreich, D., Curto, G. Lo, Martins, C. J. A. P., Di Marcantonio, P., Mégevand, D., Nunes, N. J., Palle, E., Poretti, E., Sousa, S. G.
GJ436b might be the prototype of warm Neptunes that have undergone late migration induced by an outer companion. Precise determination of the orbital architecture of such systems is critical to constraining their dynamical history and evaluating the
Externí odkaz:
http://arxiv.org/abs/2203.06109
Autor:
Faria, J. P., Mascareño, A. Suárez, Figueira, P., Silva, A. M., Damasso, M., Demangeon, O., Pepe, F., Santos, N. C., Rebolo, R., Cristiani, S., Adibekyan, V., Alibert, Y., Allart, R., Barros, S. C. C., Cabral, A., D'Odorico, V., Di Marcantonio, P., Dumusque, X., Ehrenreich, D., Hernández, J. I. González, Hara, N., Lillo-Box, J., Curto, G. Lo, Lovis, C., Martins, C. J. A. P., Mégevand, D., Mehner, A., Micela, G., Molaro, P., Nunes, N. J., Pallé, E., Poretti, E., Sousa, S. G., Sozzetti, A., Tabernero, H., Udry, S., Osorio, M. R. Zapatero
Proxima Centauri is the closest star to the Sun. This small, low-mass, mid M dwarf is known to host an Earth-mass exoplanet with an orbital period of 11.2 days within the habitable zone, as well as a long-period planet candidate with an orbital perio
Externí odkaz:
http://arxiv.org/abs/2202.05188
Autor:
Cristo, E., Santos, N. C., Demangeon, O., Martins, J. H. C., Figueira, P., Casasayas-Barris, N., Osorio, M. R. Zapatero, Borsa, F., Sousa, S. G., Oshagh, M., Micela, G., Tabernero, H. M., Seidel, J. V., Cristiani, S., Pepe, F., Rebolo, R., Adibekyan, V., Allart, R., Alibert, Y., Silva, T. Azevedo, Bourrier, V., Cabral, A., Borges, E. Esparza, Hernández, J. I. González, Lillo-Box, J., Curto, G. Lo, Lovis, C., Manescau, A., Di Marcantonio, P., Martins, C. J. A. P., Mascareño, A. S., Mégevand, D., Mehner, A., Nunes, N. J., Palle, E., Sozzetti, A., Udry, S.
Publikováno v:
A&A 660, A52 (2022)
In this paper we introduce CaRM, a semi-automatic code for the retrieval of broadband transmission spectra of transiting planets through the chromatic Rossiter-McLaughlin method. We applied it to HARPS and ESPRESSO observations of two exoplanets to r
Externí odkaz:
http://arxiv.org/abs/2201.06531
Autor:
Bourrier, V., Lovis, C., Cretignier, M., Allart, R., Dumusque, X., Delisle, J. -B., Deline, A., Sousa, S. G., Adibekyan, V., Alibert, Y., Barros, S. C. C., Borsa, F., Cristiani, S., Demangeon, O., Ehrenreich, D., Figueira, P., Hernández, J. I. González, Lendl, M., Lillo-Box, J., Curto, G. Lo, Di Marcantonio, P., Martins, C. J. A. P., Mégevand, D., Mehner, A., Micela, G., Molaro, P., Oshagh, M., Palle, E., Pepe, F., Poretti, E., Rebolo, R., Santos, N. C., Scandariato, G., Seidel, J. V., Sozzetti, A., Mascareño, A. Suárez, Osorio, M. R Zapatero
Comparisons of the alignment of exoplanets with a common host star can be used to distinguish among concurrent evolution scenarios. However, multi-planet systems usually host mini-Neptunes and super-Earths, whose size make orbital architecture measur
Externí odkaz:
http://arxiv.org/abs/2110.14214
Autor:
Lillo-Box, J., Faria, J. P., Mascareño, A. Suárez, Figueira, P., Sousa, S. G., Tabernero, H., Lovis, C., Silva, A. M., Demangeon, O. D. S., Benatti, S., Santos, N. C., Mehner, A., Pepe, F. A., Sozzetti, A., Osorio, M. R. Zapatero, Hernández, J. I. González, Micela, G., Hojjatpanah, S., Rebolo, R., Cristiani, S., Adibekyan, V., Allart, R., Prieto, C. Allende, Cabral, A., Damasso, M., Di Marcantonio, P., Curto, G. Lo, Martins, C. J. A. P., Megevand, D., Molaro, P., Nunes, N. J., Pallé, E., Pasquini, L., Poretti, E., Udry, S.
Publikováno v:
A&A 654, A60 (2021)
The ESPRESSO spectrograph is a new powerful tool to detect and characterize extrasolar planets. Its design allows unprecedented radial velocity precision (down to a few tens of cm/s) and long-term thermo-mechanical stability. We present the first sta
Externí odkaz:
http://arxiv.org/abs/2109.00226
Autor:
Demangeon, Olivier D. S., Osorio, M. R. Zapatero, Alibert, Y., Barros, S. C. C., Adibekyan, V., Tabernero, H. M., Antoniadis-Karnavas, A., Camacho, J. D., Mascareño, A. Suárez, Oshagh, M., Micela, G., Sousa, S. G., Lovis, C., Pepe, F. A., Rebolo, R., Cristiani, S., Santos, N. C., Allart, R., Prieto, C. Allende, Bossini, D., Bouchy, F., Cabral, A., Damasso, M., Di Marcantonio, P., D'Odorico, V., Ehrenreich, D., Faria, J., Figueira, P., Santos, R. Génova, Haldemann, J., Hara, N., Hernández, J. I. González, Lavie, B., Lillo-Box, J., Curto, G. Lo, Martins, C. J. A. P., Mégevand, D., Mehner, A., Molaro, P., Nunes, N. J., Pallé, E., Pasquini, L., Poretti, E., Sozzetti, A., Udry, S.
Publikováno v:
A&A 653, A41 (2021)
The advent of a new generation of radial velocity instruments has allowed us to break the one Earth-mass barrier. We report a new milestone in this context with the detection of the lowest-mass planet measured so far using radial velocities: L 98-59
Externí odkaz:
http://arxiv.org/abs/2108.03323
Autor:
Sozzetti, A., Damasso, M., Bonomo, A. S., Alibert, Y., Sousa, S. G., Adibekyan, V., Osorio, M. R. Zapatero, Hernández, J. I. González, Barros, S. C. C., Lillo-Box, J., Stassun, K. G., Winn, J., Cristiani, S., Pepe, F., Rebolo, R., Santos, N. C., Allart, R., Barclay, T., Bouchy, F., Cabral, A., Ciardi, D., Di Marcantonio, P., D'Odorico, V., Ehrenreich, D., Fasnaugh, M., Figueira, P., Haldemann, J., Jenkins, J. M., Latham, D. W., Lavie, B., Curto, G. Lo, Lovis, C., Martins, C. J . A. P., Mégevand, D., Mehner, A., Micela, G., Molaro, P., Nunes, N. J., Oshagh, M., Otegi, J., Pallé, E., Poretti, E., Ricker, G., Rodriguez, D., Seager, S., Mascareño, A. Suárez, Twicken, J. D., Udry, S.
Publikováno v:
A&A 648, A75 (2021)
[Abridged] We exploit the extreme radial velocity (RV) precision of the ultra-stable echelle spectrograph ESPRESSO on the VLT to unveil the physical properties of the transiting sub-Neptune TOI-130 b, uncovered by TESS orbiting the nearby, bright, la
Externí odkaz:
http://arxiv.org/abs/2101.12300
Autor:
Tabernero, H. M., Osorio, M. R. Zapatero, Allart, R., Borsa, F., Casasayas-Barris, N., Demangeon, O., Ehrenreich, D., Lillo-Box, J., Lovis, C., Pallé, E., Sousa, S. G., Rebolo, R., Santos, N. C., Pepe, F., Cristiani, S., Adibekyan, V., Prieto, C. Allende, Alibert, Yann, Barros, S. C. C., Bouchy, F., Bourrier, V., D'Odorico, V., Dumusque, X., Faria, J. P., Figueira, P., Santos, R. Génova, Hernández, J. I. González, Hojjatpanah, S., Curto, G. Lo, Lavie, B., Martins, C. J. A. P., Martins, J. H. C., Mehner, A., Micela, G., Molaro, P., Nunes, N. J., Poretti, E., Seidel, J. V., Sozzetti, A., Mascareño, A. Suárez, Udry, S., Aliverti, M., Affolter, M., Alves, D., Amate, M., Avila, G., Bandy, T., Benz, W., Bianco, A., Broeg, C., Cabral, A., Conconi, P., Coelho, J., Cumani, C., Deiries, S., Dekker, H., Delabre, B., Fragoso, A., Genoni, M., Genolet, L., Hughes, I., Knudstrup, J., Kerber, F., Landoni, M., Lizon, J. L., Maire, C., Manescau, A., Di Marcantonio, P., Mégevand, D., Monteiro, M., Moschetti, M., Mueller, E., Modigliani, A., Oggioni, L., Oliveira, A., Pariani, G., Pasquini, L., Rasilla, J. L., Redaelli, E., Riva, M., Santana-Tschudi, S., Santin, P., Santos, P., Segovia, A., Sosnowska, D., Spanò, P., Tenegi, F., Iwert, O., Zanutta, A., Zerbi, F.
Publikováno v:
A&A 646, A158 (2021)
Aims. We report on ESPRESSO high-resolution transmission spectroscopic observations of two primary transits of the highly-irradiated, ultra-hot Jupiter-size planet WASP-76b. We investigate the presence of several key atomic and molecular features of
Externí odkaz:
http://arxiv.org/abs/2011.12197