Zobrazeno 1 - 10
of 4 841
pro vyhledávání: '"Gandhi, S"'
Autor:
de Regt, S., Gandhi, S., Snellen, I. A. G., Zhang, Y., Ginski, C., Picos, D. González, Kesseli, A. Y., Landman, R., Mollière, P., Nasedkin, E., Sánchez-López, A., Stolker, T.
It has been proposed that the distinct formation and evolution of exoplanets and brown dwarfs may affect the chemical and isotopic content of their atmospheres. Recent work has indeed shown differences in the $^{12}$C/$^{13}$C isotope ratio, provisio
Externí odkaz:
http://arxiv.org/abs/2405.10841
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
We have performed low-resolution ground-based spectroscopy of HATS-46 b in transmission, using the EFOSC2 instrument on the ESO New Technology Telescope (NTT). HATS-46 b is a highly-inflated exoplanet that is a prime target for transmission spectrosc
Externí odkaz:
http://arxiv.org/abs/2303.07381
Autor:
Lafarga, M., Brogi, M., Gandhi, S., Cegla, H. M., Seidel, J. V., Doyle, L., Allart, R., Buchschacher, N., Lendl, M., Lovis, C., Sosnowska, D.
With high-resolution spectroscopy we can study exoplanet atmospheres and learn about their chemical composition, temperature profiles, and presence of clouds and winds, mainly in hot, giant planets. State-of-the-art instrumentation is pushing these s
Externí odkaz:
http://arxiv.org/abs/2302.04794
Autor:
Maimone, M. C., Brogi, M., Chiavassa, A., Ancker, M. E. van den, Manara, C. F., Leconte, J., Gandhi, S., Pluriel, W.
Publikováno v:
A&A 667, A106 (2022)
Infrared spectroscopy over a wide spectral range and at the highest resolving powers (R>70 000) has proved to be one of the leading technique to unveil the atmospheric composition of dozens of exoplanets. The recently upgraded spectrograph CRIRES ins
Externí odkaz:
http://arxiv.org/abs/2209.11506
Autor:
Guilluy, G., Giacobbe, P., Carleo, I., Cubillos, P. E., Sozzetti, A., Bonomo, A. S., Brogi, M., Gandhi, S., Fossati, L., Nascimbeni, V., Turrini, D., Schisano, E., Borsa, F., Lanza, A. F., Mancini, L., Maggio, A., Malavolta, L., Micela, G., Pino, L., Rainer, M., Bignamini, A., Claudi, R., Cosentino, R., Covino, E., Desidera, S., Fiorenzano, A., Harutyunyan, A., Lorenzi, V., Knapic, C., Molinari, E., Pacetti, E., Pagano, I., Pedani, M., Piotto, G., Poretti, E.
Publikováno v:
A&A 665, A104 (2022)
The field of exo-atmospheric characterisation is progressing at an extraordinary pace. Atmospheric observations are now available for tens of exoplanets, mainly hot and warm inflated gas giants, and new molecular species continue to be detected revea
Externí odkaz:
http://arxiv.org/abs/2207.09760
Autor:
Seidel, J. V., Cegla, H. M., Doyle, L., Lafarga, M., Brogi, M., Gandhi, S., Anderson, D. R., Allart, R., Buchschacher, N., Lovis, C., Sosnowska, D.
The hot Neptune desert, a distinct lack of highly irradiated planets in the size range of Neptune, remains one of the most intriguing results of exoplanet population studies. A deeper understanding of the atmosphere of exoplanets sitting at the edge
Externí odkaz:
http://arxiv.org/abs/2203.04494
We present an optical transmission spectrum for WASP-94A b, the first atmospheric characterisation of this highly-inflated hot Jupiter. The planet has a reported radius of $1.72^{+0.06}_{-0.05}$ R$_{\textrm{Jup}}$, a mass of only $0.456^{+0.032}_{-0.
Externí odkaz:
http://arxiv.org/abs/2201.02212
Autor:
Otegi, J. F., Bouchy, F., Helled, R., Armstrong, D. J., Stalport, M., Stassun, K. G., Delgado-Mena, E., Santos, N. C., Collins, K., Gandhi, S., Dorn, C., Brogi, M., Fridlund, M., Osborn, H. P., Hoyer, S., Udry, S., Hojjatpanah, S., Nielsen, L. D., Dumusque, X., Adibekyan, V., Conti, D., Schwarz, R., Wang, G., Figueira, P., Lillo-Box, J., Díaz, R. F., Hadjigeorghiou, A., Bayliss, D., Strøm, P. A., Sousa, S. G., Barrado, D., Osborn, A., Barros, S. S. C., Brown, D. J. A., Eastman, J. D., Ciardi, D. R., Vanderburg, A., Goeke, R. F., Guerrero, N. M., Boyd, P. T., Caldwell, D. A., Henze, C. E., McLean, B., Ricker, G., Vanderspek, R., Latham, D. W., Seager, S., Winn, J., Jenkins, J. M.
Publikováno v:
A&A 653, A105 (2021)
The Transiting Exoplanet Survey Satellite (\textit{TESS}) mission was designed to perform an all-sky search of planets around bright and nearby stars. Here we report the discovery of two sub-Neptunes orbiting around the TOI 1062 (TIC 299799658), a V=
Externí odkaz:
http://arxiv.org/abs/2105.01945