The Homogeneous Study of Transiting Systems (HoSTS) – II. The influence of the line list on stellar parameters [PDF]
, 2017 The use of high-resolution, high signal-to-noise stellar spectra is essential in order to determine the most accurate and precise stellar atmospheric parameters via spectroscopy.
Smalley
core +1 more source
Fundamental Parameters of CP Stars [PDF]
Highlights of Astronomy, 1998 The quest for accurate fundamental parameters (M, R, Teff log g, v sin i) of CP stars has been a lasting problem ever since the nature and origin of these stars has been discussed. The main reason for the difficulty lies in the anomalous colours of these stars, linked with their abundance anomalies which are responsible for complicated blocking and ...
openaire +1 more source
Asteroseismic determination of fundamental parameters of Sun-like stars using multilayered neural networks [PDF]
, 2016 The advent of space-based observatories such as CoRoT and Kepler has enabled the testing of our understanding of stellar evolution on thousands of stars.
K. Verma +4 more
semanticscholar +1 more source
The fundamental parameters of the roAp star HD 24712 [PDF]
Astronomy & Astrophysics, 2016 Context. There is still a debate about the nature of the mechanism that causes the pulsation excitation of the rapidly oscillating Ap stars that oscillate above the highest theoretically acoustic frequency. HD 24712 is a good test case for such a study because it is bright, its parallax accurately determined, and its frequency spectrum is well known ...
Perraut, K. +6 more
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Eclipsing binary stars with a delta Scuti component [PDF]
, 2017 Eclipsing binaries with a d Sct component are powerful tools to derive the fundamental parameters and probe the internal structure of stars. In this study, spectral analysis of six primary d Sct components in eclipsing binaries has been performed. Values
Smalley
core +1 more source
VLTI/AMBER observations of cold giant stars: atmospheric structures and fundamental parameters [PDF]
, 2014 Aims. The main goal of this research is to determine the angular size and the atmospheric structures of cool giant stars (epsilon Oct, beta Peg, NU Pav, psi Peg, and gamma Hya) and to compare them with hydrostatic stellar model atmospheres, to estimate ...
B. Arroyo-Torres +7 more
semanticscholar +1 more source
The life cycles of Be viscous decretion discs: fundamental disc parameters of 54 SMC Be stars [PDF]
, 2018 Be stars are main-sequence massive stars with emission features in their spectrum, which originates in circumstellar gaseous discs. Even though the viscous decretion disc (VDD) model can satisfactorily explain most observations, two important physical ...
L. R'imulo +9 more
semanticscholar +1 more source
Fundamental parameters of RR Lyrae stars from multicolour photometry and Kurucz atmospheric models – III. SW And, DH Peg, CU Com and DY Peg [PDF]
, 2014 We report the most comprehensive UBV(RI)_C observations of the bright, radially pulsating field stars SW And, DH Peg, CU Com, DY Peg. Long term variation has been found in the ultraviolet colour curves of SW And and DH Peg.
S. Barcza, J. M. BenkHo
semanticscholar +1 more source
Precise determination of fundamental parameters of six exoplanet host stars and their planets [PDF]
, 2014 The aim of this paper is to determinate the fundamental parameters of six exoplanet host (EH) stars and their planets. Because techniques for detecting exo-planets yield properties of the planet only as a function of the properties of the host star, we ...
Kang Liu +5 more
semanticscholar +1 more source
FUNDAMENTAL PARAMETERS OF SUPERGIANT STAR HD 40589 (A0Iab)
Odessa Astronomical Publications, 2023 The atmosphere of HD 40589 (A0Iab) supergiant star of A spectral class was studied using the model atmosphere and parallax methods. The effective temperatures (Teff) and surface of gravity (log g) were determined using a comparison of the observed and calculated values of the photometric quantities [c1], Q and the equivalent widths of the hydrogen ...
Z. A. Samedov +3 more
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