Zobrazeno 1 - 10
of 136
pro vyhledávání: '"Maxim L. Khodachenko"'
Autor:
Maxim L. Khodachenko, Valery V. Zaitsev, Vladimir E. Shaposhnikov, Marina S. Rumenskikh, Ildar F. Shaikhislamov
As an alternative to the traditionally considered electron cyclotron maser (ECM) mechanism of exoplanetary radio emission (RE), we study plasma maser mechanism. The latter, contrary to ECM operates in dense and weakly magnetized plasmas, where electr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::40984e8222fed22dd34b3817047e01cb
https://doi.org/10.5194/egusphere-egu23-4514
https://doi.org/10.5194/egusphere-egu23-4514
Publikováno v:
Astronomy & Astrophysics. 673:A22
Context. The short-time (< 700 days) periodicities of both the stellar and solar activity that controls space weather are usually are discussed as manifestations of Rossby modes in tachoclines. Various interpretations of this phenomenon that have bee
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fef894dd422bcda4857bdf2414d3758c
https://doi.org/10.1051/0004-6361/202245670
https://doi.org/10.1051/0004-6361/202245670
Autor:
I. F. Shaikhislamov, Luca Fossati, Maxim L. Khodachenko, I. B. Miroshnichenko, Helmut Lammer, A. G. Berezutsky, M. A. Efimof, M. S. Rumenskikh
Publikováno v:
Monthly Notices of the Royal Astronomical Society: Letters. 503:L23-L27
Transmission spectroscopy of WASP-107b revealed 7-8% absorption at the position of metastable HeI triplet at 10830 {\AA} in Doppler velocity range of [-20; 10] km/s, which is stronger than that measured in other exoplanets. With a dedicated 3D self-c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::805cb982593910d28a5b14aa03449b47
https://doi.org/10.1093/mnrasl/slab015
https://doi.org/10.1093/mnrasl/slab015
Publikováno v:
Astronomy Reports. 65:8-25
The studies of close-orbit gaseous exoplanets—hot Jupiters and warm Neptunes—are reviewed. Transit spectral observations of the Hubble Space Telescope stimulated the numerical modeling of these objects. The supersonic outflow of the upper atmosph
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7907bd92daa1c5b8ba8c16b16a5d40cc
https://doi.org/10.1134/s1063772921010054
https://doi.org/10.1134/s1063772921010054
Autor:
I. F. Shaikhislamov, M. S. Rumenskikh, I. B. Miroshnichenko, A. G. Berezutsky, Maxim L. Khodachenko
Publikováno v:
Solar System Research. 53:138-145
Numerical modeling results of interactions of the planetary atmosphere of Gliese 436b with ionizing radiation and the plasma wind of an M star are presented. A self-consistent gas-dynamic 2D model characterizing the processes of radiation heating and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::06a8f9ee108ad40a29128f6dcb73b5f1
https://doi.org/10.1134/s0038094619020011
https://doi.org/10.1134/s0038094619020011
Publikováno v:
Kallio, E.; Dyadechkin, S.; Wurz, Peter; Khodachenko, M. (2019). Space weathering on the Moon: Farside-nearside solar wind precipitation asymmetry. Planetary and space science, 166, pp. 9-22. Elsevier 10.1016/j.pss.2018.07.013
The lunar surface is continuously under the impact of solar wind plasma, which breaks the chemical bonds of the surface material resulting in weathering of the surface and a modified chemical composition. Ion impact also sputters the surface material
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5e6987fd93bdb021598b70b0c4618306
https://doi.org/10.1016/j.pss.2018.07.013
https://doi.org/10.1016/j.pss.2018.07.013
Autor:
I. F. Shaikhislamov, Luca Fossati, Maxim L. Khodachenko, M. S. Rumenskikh, A. G. Berezutsky, Helmut Lammer, I. B. Miroshnichenko
The signs of an expanding atmosphere of HD209458b have been observed with far-ultraviolet transmission spectroscopy and in the measurements of transit absorption by metastable He i. These observations are interpreted using the hydrodynamic and Monte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c507f5871a7f29496f9b75a637747e3c
Autor:
G. Dumbadze, Stefaan Poedts, Maxim L. Khodachenko, P. De Causmaecker, Teimuraz V. Zaqarashvili, Bidzina M. Shergelashvili
We studied the low-frequency $\lesssim 0.5\;$h$^{-1}$ (long-period $\gtrsim 2\;$h) oscillations of active regions (ARs). The investigation is based on an analysis of a time series built from Solar Dynamics Observatory/Helioseismic and Magnetic Imager
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::694138a65091661e8d9653fe40b4d22c
Autor:
Colin P. Johnstone, Manuel Scherf, Mats Holmström, Manuel Güdel, Helmut Lammer, Maxim L. Khodachenko, Kristina G. Kislyakova, Igor Alexeev
Habitable conditions on Earth developed in a tight connection to the evolution of terrestrial atmosphere which was strongly influenced by atmospheric escape. In this study, we investigated the evolution of the polar ion outflow from the Earth’s ope
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ad5986d673914c9b12f467acaee48edc
https://doi.org/10.5194/epsc2020-200
https://doi.org/10.5194/epsc2020-200
The aeronomy hydrodynamic simulation Salz et al. (2016) has shown that the warm Neptune GJ 3470b should have one of the largest mass loss rates due to its low mass, close orbit and relatively high activity of the host star. The Lyα observation of GJ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::417e7ee6e9859177ed3a166efea71455
https://doi.org/10.5194/epsc2020-147
https://doi.org/10.5194/epsc2020-147