Zobrazeno 1 - 10
of 1 909
pro vyhledávání: '"Wyttenbach A"'
Autor:
Oza, Apurva V., Seidel, Julia V., Hoeijmakers, H. Jens, Unni, Athira, Kesseli, Aurora Y., Schmidt, Carl A., Thirupathi, Sivarani, Bello-Arufe, Aaron, Gebek, Andrea, Westram, Moritz Meyer zu, Sousa, Sérgio G., Lopes, Rosaly M. C., Hu, Renyu, de Kleer, Katherine, Fisher, Chloe, Charnoz, Sébastien, Baker, Ashley D., Halverson, Samuel P., Schneider, Nicholas M., Psaridi, Angelica, Wyttenbach, Aurélien, Torres, Santiago, Bhatnagar, Ishita, Johnson, Robert E.
Neutral sodium (Na I) is an alkali metal with a favorable absorption cross section such that tenuous gases are easily illuminated at select transiting exoplanet systems. We examine both the time-averaged and time-series alkali spectral flux individua
Externí odkaz:
http://arxiv.org/abs/2409.19844
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:
Masson, A., Vinatier, S., Bézard, B., López-Puertas, M., Lampón, M., Debras, F., Carmona, A., Klein, B., Artigau, E., Dethier, W., Pelletier, S., Hood, T., Allart, R., Bourrier, V., Cadieux, C., Charnay, B., Cowan, N. B., Cook, N. J., Delfosse, X., Donati, J. -F., Gu, P. -G., Hébrard, G., Martioli, E., Moutou, C., Venot, O., Wyttenbach, A.
For several years, the metastable helium triplet line has been successfully used as a tracer to probe atmospheric escape in transiting exoplanets. This absorption in the near-infrared (1083.3 nm) can be observed from the ground using high-resolution
Externí odkaz:
http://arxiv.org/abs/2406.09225
Autor:
Anderson, Richard I., Viviani, Giordano, Shetye, Shreeya S., Mowlavi, Nami, Eyer, Laurent, Palaversa, Lovro, Holl, Berry, Blanco-Cuaresma, Sergi, Kravchenko, Kateryna, Pawlak, Michał, Reyes, Mauricio Cruz, Khan, Saniya, Netzel, Henryka E., Löbling, Lisa, Pápics, Péter I., Postel, Andreas, Roelens, Maroussia, Spetsieri, Zoi T., Thoul, Anne, Zák, Jiří, Bonvin, Vivien, Martin, David V., Millon, Martin, Saesen, Sophie, Wyttenbach, Aurélien, Figueira, Pedro, Marmier, Maxime, Prins, Saskia, Raskin, Gert, van Winckel, Hans
Publikováno v:
A&A 686, A177 (2024)
This first VELOCE data release comprises 18,225 high-precision RV measurements of 258 bona fide classical Cepheids on both hemispheres collected mainly between 2010 and 2022, alongside 1161 additional observations of 164 other stars. The median per-o
Externí odkaz:
http://arxiv.org/abs/2404.12280
Autor:
Debras, F., Klein, B., Donati, J. -F., Hood, T., Moutou, C., Carmona, A., Charnay, B., Bézard, B., Fouqué, P., Masson, A., Vinatier, S., Baruteau, C., Boisse, I., Bonfils, X., Chiavassa, A., Delfosse, X., Hebrard, G., Leconte, J., Martioli, E., Ould-elkhim, M., Parmentier, V., Petit, P., Pluriel, W., Selsis, F., Teinturier, L., Tremblin, P., Turbet, M., Venot, O., Wyttenbach, A.
In a companion paper, we introduced a publicly-available pipeline to characterise exoplanet atmospheres through high-resolution spectroscopy. In this paper, we use this pipeline to study the biases and degeneracies that arise in atmospheric character
Externí odkaz:
http://arxiv.org/abs/2308.14511
Autor:
Klein, B., Debras, F., Donati, J. -F., Hood, T., Moutou, C., Carmona, A., Ould-elkhim, M., Bézard, B., Charnay, B., Fouqué, P., Masson, A., Vinatier, S., Baruteau, C., Boisse, I., Bonfils, X., Chiavassa, A., Delfosse, X., Dethier, W., Hebrard, G., Kiefer, F., Leconte, J., Martioli, E., Parmentier, V., Petit, P., Pluriel, W., Selsis, F., Teinturier, L., Tremblin, P., Turbet, M., Venot, O., Wyttenbach, A.
Atmospheric characterisation of exoplanets from the ground is an actively growing field of research. In this context we have created the ATMOSPHERIX consortium: a research project aimed at characterizing exoplanets atmospheres using ground-based high
Externí odkaz:
http://arxiv.org/abs/2308.14510
Autor:
Cegla, H. M., Roguet-Kern, N., Lendl, M., Akinsanmi, B., McCormac, J., Oshagh, M., Wheatley, P. J., Chen, G., Allart, R., Mortier, A., Bourrier, V., Buchschacher, N., Lovis, C., Sosnowska, D., Sulis, S., Turner, O., Casasayas-Barris, N., Palle, E., Yan, F., Burleigh, M. R., Casewell, S. L., Goad, M. R., Hawthorn, F., Wyttenbach, A.
Publikováno v:
A&A 674, A174 (2023)
We analyse spectroscopic and photometric transits of the hot Jupiters WASP-52b and HAT-P30b obtained with ESPRESSO, Eulercam and NGTS for both targets, and additional TESS data for HAT-P-30. Our goal is to update the system parameters and refine our
Externí odkaz:
http://arxiv.org/abs/2304.11022
Autor:
Steiner, M., Attia, O., Ehrenreich, D., Lendl, M., Bourrier, V., Lovis, C., Seidel, J. V., Sousa, S. G., Mounzer, D., Astudillo-Defru, N., Bonfils, X., Bonvin, V., Dethier, W., Heng, K., Lavie, B., Melo, C., Ottoni, G., Pepe, F., Ségransan, D., Wyttenbach, A.
Publikováno v:
A&A 672, A134 (2023)
We searched for potential atmospheric species in KELT-10b, focusing on sodium doublet lines (Na i; 589 nm) and the Balmer alpha line (H $\alpha$; 656 nm) in the transmission spectrum. Furthermore, we measured the planet-orbital alignment with the spi
Externí odkaz:
http://arxiv.org/abs/2303.05857
Autor:
Mounzer, Dany, Lovis, Christophe, Seidel, Julia V., Attia, Omar, Allart, Romain, Bourrier, Vincent, Ehrenreich, David, Wyttenbach, Aurélien, Astudillo-Defru, Nicola, Beatty, Thomas G., Cegla, Heather, Heng, Kevin, Lavie, Baptiste, Lendl, Monika, Melo, Claudio, Pepe, Francesco, Pepper, Joshua, Rodriguez, Joseph E., Ségransan, Damien, Udry, Stéphane, Linder, Esther, Sousa, Sergio
Publikováno v:
A&A 668, A1 (2022)
KELT-11b is an inflated sub-Saturn with a hot atmosphere and that orbits a bright evolved subgiant star, making it a prime choice for atmospheric characterization, but that transits its host star for more than seven hours. We observed this system in
Externí odkaz:
http://arxiv.org/abs/2209.00597
Autor:
Zhang, Yapeng, Snellen, Ignas A. G., Wyttenbach, Aurélien, Nielsen, Louise D., Lendl, Monika, Casasayas-Barris, Núria, Chaverot, Guillaume, Kesseli, Aurora Y., Lovis, Christophe, Pepe, Francesco A., Psaridi, Angelica, Seidel, Julia V., Udry, Stéphane, Ulmer-Moll, Solène
Publikováno v:
A&A 666, A47 (2022)
Ultra-hot Jupiters (UHJs), rendering the hottest planetary atmospheres, offer great opportunities of detailed characterisation with high-resolution spectroscopy. MASCARA-4 b is a recently discovered close-in gas giant belonging to this category. In o
Externí odkaz:
http://arxiv.org/abs/2208.11427