Zobrazeno 1 - 10
of 261
pro vyhledávání: '"A. 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
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:
A. P. Shulyak, A. D. Shachykov
Publikováno v:
Vìsnik Nacìonalʹnogo Tehnìčnogo Unìversitetu Ukraïni Kììvsʹkij Polìtehnìčnij Ìnstitut: Serìâ Radìotehnìka, Radìoaparatobuduvannâ, Iss 66 (2016)
Introduction. The issues of features informativity evaluation in biomedical signals portraits according to formal comparison of their probability values, obtained during training of supervised learning recognition systems are being considered. The pu
Externí odkaz:
https://doaj.org/article/c8463a1a3585466982c3e2ca216c071c
Autor:
A. A. Lukoshkova, A. T. Shulyak, E. E. Posypayko, N. A. Selivanov, A. V. Golubev, А. S. Kubasov, A. Yu. Bykov, A. P. Zhdanov, K. Yu. Zhizhin, N. T. Kuznetsov
Publikováno v:
Тонкие химические технологии, Vol 19, Iss 1, Pp 61-71 (2024)
Objectives. To develop methods for the synthesis of substituted derivatives of the octahydrotriborate anion. Such compounds can be considered as hydrogen storage, components of ionic liquids, precursors for the production of boride coatings using the
Externí odkaz:
https://doaj.org/article/9bf2a1e4398b484da5720e83a53003cd