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View article: Characterizing the variability of a sample of massive stars in eclipsing binaries
Characterizing the variability of a sample of massive stars in eclipsing binaries Open
Massive stars exhibit a perplexing mismatch between their inferred masses from different observational techniques, posing a significant challenge to our understanding of stellar evolution and structure. This discrepancy is believed to be c…
View article: Tidally Distorted Stars Are Triaxial Pulsators
Tidally Distorted Stars Are Triaxial Pulsators Open
Stars in close binaries are tidally distorted, and this has a strong effect on their pulsation modes. We compute the mode frequencies and geometries of tidally distorted stars using perturbation theory, accounting for the effects of the Co…
View article: HD 60435: the star that stopped pulsating
HD 60435: the star that stopped pulsating Open
HD 60435 is a well known rapidly oscillating (roAp) Ap star with a series of alternating even and odd degree modes, making it a prime asteroseismic target. It is also an oblique pulsator with rotational inclination, i, and magnetic/pulsati…
View article: HD 60435: The star that stopped pulsating
HD 60435: The star that stopped pulsating Open
HD 60435 is a well-known rapidly oscillating (roAp) Ap star with a series of alternating even and odd degree modes, making it a prime asteroseismic target. It is also an oblique pulsator with rotational inclination, $i$, and magnetic/pulsa…
View article: Tidally distorted stars are triaxial pulsators
Tidally distorted stars are triaxial pulsators Open
Stars in close binaries are tidally distorted, and this has a strong effect on their pulsation modes. We compute the mode frequencies and geometries of tidally distorted stars using perturbation theory, accounting for the effects of the Co…
View article: TIC 435850195: The Second Triaxial Tidally Tilted Pulsator
TIC 435850195: The Second Triaxial Tidally Tilted Pulsator Open
The Transiting Exoplanet Survey Satellite (TESS) has enabled the discovery of numerous tidally tilted pulsators (TTPs), which are pulsating stars in close binaries where the presence of a tidal bulge has the effect of tilting the primary s…
View article: TIC 435850195: The Second Tri-Axial, Tidally Tilted Pulsator
TIC 435850195: The Second Tri-Axial, Tidally Tilted Pulsator Open
The Transiting Exoplanet Survey Satellite (TESS) has enabled the discovery of numerous tidally tilted pulsators (TTPs), which are pulsating stars in close binaries where the presence of a tidal bulge has the effect of tilting the primary s…
View article: Characterization of the δ Scuti eclipsing binary KIC 4851217 and its tertiary companion as well as detection of tidally tilted pulsations
Characterization of the δ Scuti eclipsing binary KIC 4851217 and its tertiary companion as well as detection of tidally tilted pulsations Open
Stellar theory enables us to understand the properties of stars at different stages of their evolution, and contributes to other fields of astrophysics such as galactic and exoplanet studies. Assessing the accuracy of stellar theories nece…
View article: Characterization of the $δ$ Scuti eclipsing binary KIC 4851217 and its tertiary companion as well as detection of tidally tilted pulsations
Characterization of the $δ$ Scuti eclipsing binary KIC 4851217 and its tertiary companion as well as detection of tidally tilted pulsations Open
Stellar theory enables us to understand the properties of stars at different stages of their evolution, and contributes to other fields of astrophysics such as galactic and exoplanet studies. Assessing the accuracy of stellar theories nece…
View article: β Cephei Pulsators in Eclipsing Binaries Observed with TESS
β Cephei Pulsators in Eclipsing Binaries Observed with TESS Open
The combined strength of asteroseismology and empirical stellar basic parameter determinations for in-depth asteroseismic analysis of massive pulsators in eclipsing binaries shows great potential for treating the challenging and mysterious…
View article: On the Existence of "Maia variables"
On the Existence of "Maia variables" Open
There are different classes of pulsating stars in the H-R diagram. While many of those classes are undisputed, some remain a mystery such as the objects historically called "Maia variables". Whereas the presence of such a class was suggest…
View article: Photometric sample of early B-type pulsators in eclipsing binaries\n observed with TESS
Photometric sample of early B-type pulsators in eclipsing binaries\n observed with TESS Open
Asteroseismology coupled with eclipsing binary modelling shows a great\npotential in improving the efficiency of measurements or calibrations of the\ninterior mixing profile in massive stars. This helps, for instance in treating\nthe chall…
View article: Pulsating hydrogen-deficient white dwarfs and pre-white dwarfs observed with TESS
Pulsating hydrogen-deficient white dwarfs and pre-white dwarfs observed with TESS Open
Context. Significant advances have been achieved through the latest improvements in the photometric observations accomplished by the recent space missions, which substantially boost the study of pulsating stars via asteroseismology. The TE…
View article: $β$ Cephei pulsators in eclipsing binaries observed with TESS
$β$ Cephei pulsators in eclipsing binaries observed with TESS Open
The combined strength of asteroseismology and empirical stellar basic parameter determinations for in-depth asteroseismic analysis of massive pulsators in eclipsing binaries shows great potential for treating the challenging and mysterious…
View article: Photometric sample of early B-type pulsators in eclipsing binaries observed with TESS
Photometric sample of early B-type pulsators in eclipsing binaries observed with TESS Open
Asteroseismology coupled with eclipsing binary modelling shows great potential in improving the efficiency of measurements or calibrations of the interior mixing profile in massive stars.This helps, for instance in treating the challenging…
View article: TIC 184 743 498: the first tri-axial stellar pulsator
TIC 184 743 498: the first tri-axial stellar pulsator Open
We have discovered a δ Scuti pulsator in a tight binary (P = 1.053 d) with nine pulsation modes whose frequencies are between 38 and 56 d−1. Each of these modes exhibits amplitude modulations and π-rad phase shifts twice per orbital cycle.…
View article: Catalogue of BRITE-Constellation targets
Catalogue of BRITE-Constellation targets Open
Context. The BRIght Target Explorer (BRITE) mission collects photometric time series in two passbands with the aim of investigating stellar structure and evolution. Since their launches in the years 2013 and 2014, the constellation of five…
View article: <i>TESS</i> Cycle 2 observations of roAp stars with 2-min cadence data
<i>TESS</i> Cycle 2 observations of roAp stars with 2-min cadence data Open
We present the results of a systematic search of the Transiting Exoplanet Survey Satellite (TESS) 2-min cadence data for new rapidly oscillating Ap (roAp) stars observed during the Cycle 2 phase of its mission. We find seven new roAp stars…
View article: TESS Cycle 2 observations of roAp stars with 2-min cadence data
TESS Cycle 2 observations of roAp stars with 2-min cadence data Open
We present the results of a systematic search of the Transiting Exoplanet Survey Satellite (TESS) 2-min cadence data for new rapidly oscillating Ap (roAp) stars observed during the Cycle 2 phase of its mission. We find seven new roAp stars…
View article: Catalogue of BRITE-Constellation targets I. Fields 1 to 14 (November 2013 - April 2016)
Catalogue of BRITE-Constellation targets I. Fields 1 to 14 (November 2013 - April 2016) Open
The BRIght Target Explorer (BRITE) mission collects photometric time series in two passbands aiming to investigate stellar structure and evolution. Since their launches in the years 2013 and 2014, the constellation of five BRITE nano-satel…
View article: TIC 184743498: The First Tri-Axial Stellar Pulsator
TIC 184743498: The First Tri-Axial Stellar Pulsator Open
We have discovered a $δ$ Scuti pulsator in a tight binary (P = 1.053 d) with nine pulsation modes whose frequencies are between 38 and 56 d$^{-1}$. Each of these modes exhibits amplitude modulations and $π$-rad phase shifts twice per orbit…
View article: Single-lined eclipsing binaries with δ Scuti components: GQ Dra, RR Lep, and TYC 683-640-1
Single-lined eclipsing binaries with δ Scuti components: GQ Dra, RR Lep, and TYC 683-640-1 Open
Eclipsing binaries with (a) pulsating component(s) are remarkable objects to investigate the evolution and structure of stellar systems. Detailed studies of such systems are also important to reveal their pulsation properties. The largest …
View article: The GW Vir Instability Strip in Light of New Observations of PG 1159 Stars: Discovery of Pulsations in the Central Star of A72 and Variability of RX J0122.9–7521
The GW Vir Instability Strip in Light of New Observations of PG 1159 Stars: Discovery of Pulsations in the Central Star of A72 and Variability of RX J0122.9–7521 Open
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.…
View article: The GW Vir instability strip in the light of new observations of PG 1159 stars. Discovery of pulsations in the central star of Abell 72 and variability of RX J0122.9-7521
The GW Vir instability strip in the light of new observations of PG 1159 stars. Discovery of pulsations in the central star of Abell 72 and variability of RX J0122.9-7521 Open
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.…
View article: A calibration point for stellar evolution from massive star asteroseismology: supplementary dataset
A calibration point for stellar evolution from massive star asteroseismology: supplementary dataset Open
Dataset related to the article "A calibration point for stellar evolution from massive star asteroseismology" by Burssens et al. 2022 published in Nature Astronomy on the 22nd of June 2023. This dataset contains: 1) The frequency list deri…
View article: A calibration point for stellar evolution from massive star asteroseismology: supplementary dataset
A calibration point for stellar evolution from massive star asteroseismology: supplementary dataset Open
Dataset related to the article "A calibration point for stellar evolution from massive star asteroseismology" by Burssens et al. 2022 published in Nature Astronomy on the 22nd of June 2023. This dataset contains: 1) The frequency list deri…
View article: A calibration point for stellar evolution from massive star asteroseismology
A calibration point for stellar evolution from massive star asteroseismology Open
Massive stars are progenitors of supernovae, neutron stars and black holes. During the hydrogen-core burning phase their convective cores are the prime drivers of their evolution, but inferences of core masses are subject to unconstrained …