Zobrazeno 1 - 10
of 247
pro vyhledávání: '"P. P. Shulyak"'
Autor:
Cont, D., Nortmann, L., Yan, F., Lesjak, F., Czesla, S., Lavail, A., Reiners, A., Piskunov, N., Hatzes, A., Boldt-Christmas, L., Kochukhov, O., Marquart, T., Nagel, E., Rains, A. D., Rengel, M., Seemann, U., Shulyak, D.
Despite recent progress in the spectroscopic characterization of individual exoplanets, the atmospheres of key ultra-hot Jupiters (UHJs) still lack comprehensive investigations. These include WASP-178b, one of the most irradiated UHJs known to date.
Externí odkaz:
http://arxiv.org/abs/2406.08166
Autor:
Kochukhov, O., Amarsi, A. M., Lavail, A., Ruh, H. L., Hahlin, A., Hatzes, A., Nagel, E., Piskunov, N., Pouilly, K., Reiners, A., Rengel, M., Seemann, U., Shulyak, D.
Publikováno v:
A&A 689, A36 (2024)
The A-type metallic-line (Am) stars are typically considered to be non-magnetic or possessing very weak sub-G magnetic fields. This view has been repeatedly challenged in the literature, most commonly for the bright hot Am star o Peg. Several studies
Externí odkaz:
http://arxiv.org/abs/2405.12778
Autor:
Guo, B., Yan, F., Nortmann, L., Cont, D., Reiners, A., Pallé, E., Shulyak, D., Molaverdikhani, K., Henning, Th., Chen, G., Stangret, M., Czesla, S., Lesjak, F., López-Puertas, M., Ribas, I., Quirrenbach, A., Caballero, J. A., Amado, P. J., Blazek, M., Montes, D., Morales, J. C., Nagel, E., Osorio, M. R. Zapatero
Ultrahot Jupiters are a type of gaseous exoplanet that orbit extremely close to their host star, resulting in significantly high equilibrium temperatures. In recent years, high-resolution emission spectroscopy has been broadly employed in observing t
Externí odkaz:
http://arxiv.org/abs/2404.18788
Autor:
Nortmann, L., Lesjak, F., Yan, F., Cont, D., Czesla, S., Lavail, A., Rains, A. D., Nagel, E., Boldt-Christmas, L., Hatzes, A., Reiners, A., Piskunov, N., Kochukhov, O., Heiter, U., Shulyak, D., Rengel, M., Seemann, U.
General circulation models of gas giant exoplanets predict equatorial jets that drive inhomogeneities across the planetary atmosphere. We studied the transmission spectrum of the hot Jupiter WASP-127b during one transit in the K band with CRIRES+. Te
Externí odkaz:
http://arxiv.org/abs/2404.12363
Autor:
Lesjak, F., Nortmann, L., Yan, F., Cont, D., Reiners, A., Piskunov, N., Hatzes, A., Boldt-Christmas, L., Czesla, S., Heiter, U., Kochukhov, O., Lavail, A., Nagel, E., Rains, A. D., Rengel, M., Rodler, F., Seemann, U., Shulyak, D.
Publikováno v:
A&A 678, A23 (2023)
Accurately estimating the C/O ratio of hot Jupiter atmospheres is a promising pathway towards understanding planet formation and migration, as well as the formation of clouds and the overall atmospheric composition. The atmosphere of the hot Jupiter
Externí odkaz:
http://arxiv.org/abs/2307.11627
Publikováno v:
InterCarto. InterGIS, Vol 22, Iss 1, Pp 142-148 (2016)
The article describes the method for the forest fire burn probability estimation on a base of Poisson distribution. The λ parameter is assumed to be a mean daily number of fires detected for each Forest Fire Danger Index class within specific period
Externí odkaz:
https://doaj.org/article/1333b4c6291549f5836c1f3d5fb059d6
Autor:
Fossati, L., Biassoni, F., Cappello, G. M., Borsa, F., Shulyak, D., Bonomo, A. S., Gandolfi, D., Haardt, F., Koskinen, T., Lanza, A. F., Nascimbeni, V., Sicilia, D., Young, M., Aresu, G., Bignamini, A., Brogi, M., Carleo, I., Claudi, R., Cosentino, R., Guilluy, G., Knapic, C., Malavolta, L., Mancini, L., Nardiello, D., Pinamonti, M., Pino, L., Poretti, E., Rainer, M., Rigamonti, F., Sozzetti, A.
Publikováno v:
A&A 676, A99 (2023)
We aim at extracting the transmission spectrum of the HI Balmer lines of the ultra-hot Jupiter (UHJ) KELT-20b/MASCARA-2b from observations and to further compare the results with what obtained through forward modelling accounting for non-local thermo
Externí odkaz:
http://arxiv.org/abs/2306.15776
Determination of small-scale magnetic fields on Sun-like stars in the near-infrared using CRIRES$^+$
Autor:
Hahlin, A., Kochukhov, O., Rains, A. D., Lavail, A., Hatzes, A., Piskunov, N., Reiners, A., Seemann, U., Boldt-Christmas, L., Guenther, E. W., Heiter, U., Nortmann, L., Yan, F., Shulyak, D., Smoker, J. V., Rodler, F., Bristow, P., Dorn, R. J., Jung, Y., Marquart, T., Stempels, E.
Publikováno v:
A&A 675, A91 (2023)
We aim to characterise the small-scale magnetic fields for a sample of 16 Sun-like stars and investigate the capabilities of the newly upgraded near-infrared (NIR) instrument CRIRES$^+$ at the VLT in the context of small-scale magnetic field studies.
Externí odkaz:
http://arxiv.org/abs/2305.06873
Autor:
Yan, F., Nortmann, L., Reiners, A., Piskunov, N., Hatzes, A., Seemann, U., Shulyak, D., Lavail, A., Rains, A. D., Cont, D., Rengel, M., Lesjak, F., Nagel, E., Kochukhov, O., Czesla, S., Boldt-Christmas, L., Heiter, U., Smoker, J. V., Rodler, F., Bristow, P., Dorn, R. J., Jung, Y., Marquart, T., Stempels, E.
Publikováno v:
A&A 672, A107 (2023)
The dayside atmospheres of ultra-hot Jupiters (UHJs) are predicted to possess temperature inversion layers with extremely high temperatures at high altitudes. We observed the dayside thermal emission spectra of WASP-18b and WASP-76b with the new CRIR
Externí odkaz:
http://arxiv.org/abs/2302.08736
Autor:
Caballero, J. A., Gonzalez-Alvarez, E., Brady, M., Trifonov, T., Ellis, T. G., Dorn, C., Cifuentes, C., Molaverdikhani, K., Bean, J. L., Boyajian, T., Rodriguez, E., Sanz-Forcada, J., Osorio, M. R. Zapatero, Abia, C., Amado, P. J., Anugu, N., Bejar, V. J. S., Davies, C. L., Dreizler, S., Dubois, F., Ennis, J., Espinoza, N., Farrington, C. D., Lopez, A. Garcia, Gardner, T., Hatzes, A. P., Henning, Th., Herrero, E., Herrero-Cisneros, E., Kaminski, A., Kasper, D., Klement, R., Kraus, S., Labdon, A., Lanthermann, C., Bouquin, J. -B. Le, Gonzalez, M. J. Lopez, Luque, R., Mann, A. W., Marfil, E., Monnier, J. D., Montes, D., Morales, J. C., Palle, E., Pedraz, S., Quirrenbach, A., Reffert, S., Reiners, A., Ribas, I., Rodriguez-Lopez, C., Schaefer, G., Schweitzer, A., Seifahrt, A., Setterholm, B. R., Shan, Y., Shulyak, D., Solano, E., Sreenivas, K. R., Stefansson, G., Stuermer, J., Tabernero, H. M., Tal-Or, L., Brummelaar, T. ten, Vanaverbeke, S., von Braun, K., Youngblood, A., Zechmeister, M.
Publikováno v:
A&A 665, A120 (2022)
The Gl 486 system consists of a very nearby, relatively bright, weakly active M3.5 V star at just 8 pc with a warm transiting rocky planet of about 1.3 R_Terra and 3.0 M_Terra that is ideal for both transmission and emission spectroscopy and for test
Externí odkaz:
http://arxiv.org/abs/2206.09990