Zobrazeno 1 - 10
of 118
pro vyhledávání: '"Seidel, J V"'
Autor:
Simonnin, A., Parmentier, V., Wardenier, J. P., Chauvin, G., Chiavassa, A., N'Diaye, M., Tan, X., Bean, J., Line, M., Kitzmann, D., Kasper, D., Seifhart, A., Brogi, M., Lee, E. K. H., Pelletier, S., Pino, L., Prinoth, B., Seidel, J. V., Mansfield, M. Weiner, Benneke, B., Désert, J-M., Gandhi, S., Hammond, M., Palma-Bifani, P., Rauscher, E., Smith, P.
Wind dynamics play a pivotal role in governing transport processes within planetary atmospheres, influencing atmospheric chemistry, cloud formation, and the overall energy budget. Understanding the strength and patterns of winds is crucial for compre
Externí odkaz:
http://arxiv.org/abs/2412.01472
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:
Bourrier, V., Delisle, J. -B., Lovis, C., Cegla, H. M., Cretignier, M., Allart, R., Moulla, K. Al, Tavella, S., Attia, O., Mounzer, D., Vaulato, V., Steiner, M., Vrignaud, T., Mercier, S., Dumusque, X., Ehrenreich, D., Seidel, J. V., Wyttenbach, A., Dethier, W., Pepe, F.
High-resolution spectrographs open a detailed window onto the atmospheres of stars and planets. As the number of systems observed with different instruments grows, it is crucial to develop a standard in analyzing spectral time series of exoplanet tra
Externí odkaz:
http://arxiv.org/abs/2407.19012
Autor:
Damasceno, Y. C., Seidel, J. V., Prinoth, B., Psaridi, A., Esparza-Borges, E., Stangret, M., Santos, N. C., Zapatero-Osorio, M. R., Alibert, Y., Allart, R., Silva, T. Azevedo, Cointepas, M., Silva, A. R. Costa, Cristo, E., Di Marcantonio, P., Ehrenreich, D., Hernández, J. I. González, Herrero-Cisneros, E., Lendl, M., Lillo-Box, J., Martins, C. J. A. P., Micela, G., Pallé, E., Sousa, S. G., Steiner, M., Vaulato, V., Zhao, Y., Pepe, F.
Publikováno v:
A&A Volume 689, A54 (2024)
We search for atmospheric constituents for the UHJ WASP-178 b with two ESPRESSO transits using the narrow-band and cross-correlation techniques, focusing on the detections of NaI, H$\alpha$, H$\beta$, H$\gamma$, MgI, FeI and FeII. Additionally, we sh
Externí odkaz:
http://arxiv.org/abs/2406.08348
Autor:
Ahrer, E., Seidel, J. V., Doyle, L., Gandhi, S., Prinoth, B., Cegla, H. M., McDonald, C. H., Astudillo-Defru, N., Ayache, E., Nealon, R., Veras, Dimitri, Wheatley, P. J., Ehrenreich, D.
We present high spectral resolution observations of the hot Jupiter WASP-94 A b using the HARPS instrument on ESO's 3.6m telescope in La Silla, Chile. We probed for Na absorption in its atmosphere as well as constrained the previously reported misali
Externí odkaz:
http://arxiv.org/abs/2404.06550
Autor:
Prinoth, B., Hoeijmakers, H. J., Morris, B. M., Lam, M., Kitzmann, D., Sedaghati, E., Seidel, J. V., Lee, E. K. H., Thorsbro, B., Borsato, N. W., Damasceno, Y. C., Pelletier, S., Seifahrt, A.
Exoplanets in the ultra-hot Jupiter regime provide an excellent laboratory for testing the impact of stellar irradiation on the dynamics and chemical composition of gas giant atmospheres. In this study, we observed two transits of the ultra-hot Jupit
Externí odkaz:
http://arxiv.org/abs/2403.08863
Autor:
Cristo, E., Borges, E. Esparza, Santos, N. C., Demangeon, O., Palle, E., Psaridi, A., Bourrier, V., Faria, J. P., Allart, R., Silva, T. Azevedo, Borsa, F., Alibert, Y., Figueira, P., Hernández, J. I. González, Lendl, M., Lillo-Box, J., Curto, G. Lo, Di Marcantonio, P., Martins, C. J. A. P., Nunes, N. J., Pepe, F., Seidel, J. V., Sousa, S. G., Sozzetti, A., Stangret, M., Mascareño, A. Suárez, Tabernero, H. M., Osorio, M. R. Zapatero
Publikováno v:
A&A 682, A28 (2024)
The development of state-of-the-art spectrographs has ushered in a new era in the detection and characterization of exoplanetary systems. Our objective is to utilize the high-resolution and precision capabilities of the ESPRESSO instrument to detect
Externí odkaz:
http://arxiv.org/abs/2310.06681
Publikováno v:
A&A 678, A150 (2023)
The population of strongly irradiated Jupiter-sized planets has no equivalent in the Solar System. It is characterised by strongly bloated atmospheres and atmospheric large-scale heights. Recent space-based observations of SO2 photochemistry demonstr
Externí odkaz:
http://arxiv.org/abs/2308.13622
Autor:
Seidel, J. V., Borsa, F., Pino, L., Ehrenreich, D., Stangret, M., Osorio, M. R. Zapatero, Palle, E., Alibert, Y., Allart, R., Bourrier, V., Di Marcantonio, P., Figueira, P., Hernandez, J. I. Gonzalez, Lillo-Box, J., Lovis, C., Martins, C. J. A. P., Mehner, A., Molaro, P., Nunes, N. J., Pepe, F., Santos, N. C., Sozzetti, A.
Publikováno v:
A&A 673, A125 (2023)
Ultra-hot Jupiters, with their high equilibrium temperatures and resolved spectral lines, have emerged as a perfect testbed for new analysis techniques in the study of exoplanet atmospheres. In particular, the resolved sodium doublet as a resonant li
Externí odkaz:
http://arxiv.org/abs/2303.09376