Results 1 to 10 of about 2,009 (148)
Feasibility Analysis of Stellar Refraction Indirect Horizon Sensing Positioning on the Carrier inside the Atmosphere [PDF]
Hangkong bingqi, 2022 The stellar refraction indirect horizon sensing positioning method has the characteristics of strong auto-nomy, high accuracy and low cost, which is a new celestial navigation method with great application prospect.
Zhan Xianjun, Wang Xinlong, Hu Xiaodong, Ding Xiaokun
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The stellar atmosphere physical system I. Phenomenological definition and representation of a stellar atmosphere [PDF]
Serbian Astronomical Journal, 2018 This paper is the first in a series of two that deals with the physical and numerical grounds of stellar atmosphere modelling. After a phenomenological definition of a star and stellar atmosphere, the physics that shapes the stellar atmosphere ...
Crivellari Lucio
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Research on Stellar Occultation Detection with Bandpass Filtering for Oxygen Density Retrieval
Remote Sensing, 2023 Stellar occultation instruments detect the transmission of stellar spectra through the planetary atmosphere to retrieve densities of various atmospheric components.
Zheng Li +6 more
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The stellar atmosphere physical system II. An operative sequential algorithm to solve the stellar atmosphere problem [PDF]
Serbian Astronomical Journal, 2019 In this paper, the second and the last of the series, we present a sequential algorithm to solve the stellar atmosphere problem that may serve as a paradigm for the solution of more general non-linear and non-local problems.
Crivellari Lucio
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The Astrophysical Journal Letters, 2023 TRAPPIST-1 is a nearby system of seven Earth-sized, temperate, rocky exoplanets transiting a Jupiter-sized M8.5V star, ideally suited for in-depth atmospheric studies.
Olivia Lim +24 more
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Opacities and Atomic Diffusion
Galaxies, 2023 Opacity is a fundamental quantity for stellar modeling, and it plays an essential role throughout the life of stars. After gravity drives the collapse of interstellar matter into a protostar, the opacity determines how this matter is structured around ...
Georges Alecian, Morgan Deal
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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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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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Pulsating Stellar Atmospheres [PDF]
Symposium - International Astronomical Union, 1997 We review the basic concepts, present state of theoretical models, and the future prospects for theory and observations of pulsating stellar atmospheres. Our emphasis is on radially pulsating cool stars, which dynamic atmospheres provide a general example for the differences with standard static model atmospheres.
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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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