Zobrazeno 1 - 3
of 3
pro vyhledávání: '"Daniel L. Holdsworth"'
Autor:
Paulina Sowicka, Gerald Handler, David Jones, John A. R. Caldwell, Francois van Wyk, Ernst Paunzen, Karolina Bąkowska, Luis Peralta de Arriba, Lucía Suárez-Andrés, Klaus Werner, Marie Karjalainen, Daniel L. Holdsworth
Publikováno v:
The Astrophysical Journal Supplement Series, Vol 269, Iss 1, p 32 (2023)
We present the results of new time-series photometric observations of 29 pre–white dwarf stars of PG 1159 spectral type, carried out in the years 2014–2022. For the majority of stars, a median noise level in Fourier amplitude spectra of 0.5–1.0
Externí odkaz:
https://doaj.org/article/a3b16af8c51540f8b5fd82955e72c969
Autor:
Daniel L. Holdsworth
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 8 (2021)
Before the launch of the Kepler Space Telescope, most studies of the rapidly oscillating Ap (roAp) stars were conducted with ground-based photometric B observations, supplemented with high-resolution time-resolved spectroscopy and some space observat
Externí odkaz:
https://doaj.org/article/78e534150b64407fa391de9407df1adb
Autor:
Fangfei Shi, Donald W Kurtz, Daniel L Holdsworth, Hideyuki Saio, Margarida S Cunha, Huawei Zhang, Jianning Fu, G Handler
We report the frequency analysis of a known roAp star, HD 86181 (TIC 469246567), with new inferences from Transiting Exoplanet Survey Satellite (TESS) data. We derive the rotation frequency to be νrot = 0.48753 ± 0.00001 d−1. The pulsation freque
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2a77fca6374a4823ea8e5ded952499fc
http://arxiv.org/abs/2107.12204
http://arxiv.org/abs/2107.12204
