Fundamental parameters of the Ap-stars GO And, 84 UMa, and κ Psc [PDF]
Astronomy & Astrophysics, 2021 Aims. The aim of this work is to determine fundamental parameters of three Ap stars, GO And (HD 4778), κ Psc (HD 220825), and 84 UMa (HD 120198), using spectroscopic techniques. By analysing these stars, we complete the sample of Ap stars for which funda-
A. M. Romanovskaya +3 more
openalex +3 more sources
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.
Kuldeep Verma +4 more
openalex +3 more sources
Asteroseismic Determination of Fundamental Parameters for Exoplanet Host Stars with Deep Learning
Astronomy and Computing, 2022 Asteroseismology — techniquesNeural network — starsOscillations — starsFundamental ...
Zihan Guo, Chen Jiang
openalex +3 more sources
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
openalex +3 more sources
Fundamental parameters of “normal” B stars in the solar neighborhood [PDF]
Proceedings of the International Astronomical Union, 2010 AbstractUnderstanding phenomena of activity in stars, like pulsations or magnetism, benefits from systematic comparisons of some key physical parameters of active with those of “normal” stars. Here we concentrate on a careful derivation of fundamental parameters of a well selected sample of 27 “normal” B stars in nearby OB associations and in the field.
Nieva, M., Przybilla, N.
openaire +3 more sources
Fundamental Parameters of 87 Stars from the Navy Precision Optical Interferometer [PDF]
, 2017 We present the fundamental properties of 87 stars based on angular diameter measurements from the Navy Precision Optical Interferometer, 36 of which have not been measured previously using interferometry.
Ellyn K. Baines +7 more
openalex +3 more sources
When a period is not a full stop: Light-curve structure reveals fundamental parameters of Cepheid and RR Lyrae stars [PDF]
Monthly notices of the Royal Astronomical Society, 2019 The period of pulsation and the structure of the light curve for Cepheid and RR Lyrae variables depend on the fundamental parameters of the star: mass, radius, luminosity, and effective temperature.
Earl P. Bellinger +3 more
openalex +3 more sources
Fundamental parameters and evolutionary status of the magnetic chemically peculiar stars HD 188041 (V1291 Aquilae), HD 111133 (EP Virginis), and HD 204411: spectroscopy versus interferometry [PDF]
Monthly notices of the Royal Astronomical Society, 2019 The determination of fundamental parameters of stars is one of the main tasks of astrophysics. For magnetic chemically peculiar stars, this problem is complicated by the anomalous chemical composition of their atmospheres, which requires special ...
A. M. Romanovskaya +6 more
openalex +3 more sources
A volume-limited survey of mCP stars within 100 pc – I. Fundamental parameters and chemical abundances [PDF]
Monthly notices of the Royal Astronomical Society, 2018 We present the first results of a volume-limited survey of main sequence (MS) magnetic chemically peculiar (mCP) stars. The sample consists of all identified intermediate-mass MS stars (mCP and non-mCP) within a heliocentric distance of $100\,{\rm pc ...
James Sikora +3 more
openalex +3 more sources
Fundamental parameters of massive stars in multiple systems: The cases of HD 17505A and HD 206267A [PDF]
Astronomy & Astrophysics, 2018 Context. Many massive stars are part of binary or higher multiplicity systems. The present work focusses on two higher multiplicity systems: HD 17505A and HD 206267A. Aims.
F. Raucq +3 more
openalex +3 more sources