Overstable Convective Modes in a Polytropic Stellar Atmosphere
The Astrophysical Journal, 2023 Within the convection zone of a rotating star, the presence of the Coriolis force stabilizes long-wavelength convective modes. These modes, which would have been unstable if the star lacked rotation, are called overstable convective modes or thermal ...
Bradley W. Hindman, Rekha Jain
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PLUTO’S ATMOSPHERE FROM THE 2015 JUNE 29 GROUND-BASED STELLAR OCCULTATION AT THE TIME OF THE NEW HORIZONS FLYBY [PDF]
, 2016 We present results from a multi-chord Pluto stellar occultation observed on 2015 June 29 from New Zealand and Australia. This occurred only two weeks before the NASA New Horizons flyby of the Pluto system and serves as a useful comparison between ground ...
B. Sicardy +67 more
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The Astrophysical Journal, 2023 We present the first isotopic abundances of both ^13 CO and C ^18 O in solar twin stars and test the results against several galactic chemical evolution (GCE) models with different nucleosynthesis prescriptions.
David R. Coria +5 more
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Limb Darkening and Planetary Transits: Testing Center-to-limb Intensity Variations and Limb-Darkening Directly from Model Stellar Atmospheres [PDF]
, 2017 The transit method, employed by MOST, \emph{Kepler}, and various ground-based surveys has enabled the characterization of extrasolar planets to unprecedented precision.
Ignace, Richard +3 more
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TWO REGIMES OF INTERACTION OF A HOT JUPITER’S ESCAPING ATMOSPHERE WITH THE STELLAR WIND AND GENERATION OF ENERGIZED ATOMIC HYDROGEN CORONA [PDF]
, 2016 The interaction of escaping the upper atmosphere of a hydrogen-rich non-magnetized analog of HD 209458b with a stellar wind (SW) of its host G-type star at different orbital distances is simulated with a 2D axisymmetric multi-fluid hydrodynamic (HD ...
I. Shaikhislamov +9 more
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Effect of stellar wind induced magnetic fields on planetary obstacles of non-magnetized hot Jupiters [PDF]
, 2017 We investigate the interaction between the magnetized stellar wind plasma and the partially ionized hydrodynamic hydrogen outflow from the escaping upper atmosphere of non- or weakly magnetized hot Jupiters. We use the well-studied hot Jupiter HD 209458b
Erkaev, N. V. +9 more
core +2 more sources
CALIBRATION OF STELLAR PARAMETERS OF 85 PEG SYSTEM [PDF]
Journal of Astronomy and Space Sciences, 2007 We have investigated the evolutionary status of 85 Peg within the framework of standard evolutionary theory. 85 Peg has been known to be a visual and spectroscopic binary system in the solar neighborhood. In spite of the accurate information of the total
Kiehunn Bach +2 more
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The Stagger-grid: A grid of 3D stellar atmosphere models - I. Methods and general properties [PDF]
, 2013 Aims. We present the Stagger-grid, a comprehensive grid of time-dependent, three-dimensional (3D), hydrodynamic model atmospheres for late-type stars with realistic treatment of rad iative transfer, covering a wide range in stellar parameter s. This grid
Z. Magic +7 more
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Dislocations in magnetohydrodynamic waves in a stellar atmosphere. [PDF]
Physical Review Letters, 2013 We describe the presence of wave front dislocations in magnetohydrodynamic waves in stratified stellar atmospheres. Scalar dislocations such as edges and vortices can appear in Alfvén waves, as well as in general magnetoacoustic waves.
A. López Ariste +2 more
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Odessa Astronomical Publications, 2013 Spectroscopic binaries remain a laboratory for testing the stellar atmosphere and the stellar evolution theories. It’s considering problems determination of parameters of components and their errous for example two spectroscopic binaries with the main ...
L. V. Glazunova
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