KPD 1930+2752 is a short-period pulsating subdwarf B (sdB) star. It is also an ellipsoidal variable with a known binary period of 2.3 h. The companion is most likely a white dwarf and the total mass of the system is close to the Chandresekhar limit. In this paper, we report the results of Whole Earth Telescope (WET) photometric observations during 2003 and a smaller multisite campaign of 2002. From 355 h of WET data, we detect 68 pulsation frequencies and suggest an additional 13 frequencies within a crowded and complex temporal spectrum between 3065 and 6343 μHz (periods between 326 and 157 s). We examine pulsation properties including phase and amplitude stability in an attempt to understand the nature of the pulsation mechanism. We exami...
During the course of an ongoing CCD monitoring program to investigate low-level light variations in ...
International audienceWe present the analysis of a total of 177h of high-quality optical time-series...
The results of nine CCD photometric observing runs on KPD 0629–0016 are presented. During six of th...
KPD 1930+2752 is a short-period pulsating subdwarf B (sdB) star. It is also an ellipsoidal variable ...
KPD1930+2752 is a short-period pulsating subdwarf B (sdB) star. It is also an ellipsoidal variable w...
KPD 1930+2752 is a short-period pulsating subdwarf B (sdB) star. It is also an ellipsoidal variable ...
International audienceKPD 1930+2752 is a short-period pulsating subdwarf B (sdB) star. It is also an...
We apply asteroseismic tools to the newly discovered subdwarf B (sdB) pulsator EPIC 203948264, obser...
We present a preliminary analysis of the newly-discovered pulsating subdwarf B (sdB) star EPIC 20394...
We report a new subdwarf B pulsator, PG 1142-037, discovered during the first full-length campaign o...
We present follow-up observations of the pulsating subdwarf B (sdB) star EC 01541–1409 as part of ou...
PG 1219 + 534 (KY Uma) is a subdwarf B pulsating star with multiple periodicities between 120 – 175 ...
We present results from a multisite (‘Whole Earth Telescope’) photometric campaign on PG 1336−018, t...
Subdwarf B (sdB) stars are horizontal branch stars with thin hydrogen envelopes surrounding a half s...
PG 1351+489 is one of the 20 DBVs – pulsating helium-atmosphere white dwarf stars – known and has th...
During the course of an ongoing CCD monitoring program to investigate low-level light variations in ...
International audienceWe present the analysis of a total of 177h of high-quality optical time-series...
The results of nine CCD photometric observing runs on KPD 0629–0016 are presented. During six of th...
KPD 1930+2752 is a short-period pulsating subdwarf B (sdB) star. It is also an ellipsoidal variable ...
KPD1930+2752 is a short-period pulsating subdwarf B (sdB) star. It is also an ellipsoidal variable w...
KPD 1930+2752 is a short-period pulsating subdwarf B (sdB) star. It is also an ellipsoidal variable ...
International audienceKPD 1930+2752 is a short-period pulsating subdwarf B (sdB) star. It is also an...
We apply asteroseismic tools to the newly discovered subdwarf B (sdB) pulsator EPIC 203948264, obser...
We present a preliminary analysis of the newly-discovered pulsating subdwarf B (sdB) star EPIC 20394...
We report a new subdwarf B pulsator, PG 1142-037, discovered during the first full-length campaign o...
We present follow-up observations of the pulsating subdwarf B (sdB) star EC 01541–1409 as part of ou...
PG 1219 + 534 (KY Uma) is a subdwarf B pulsating star with multiple periodicities between 120 – 175 ...
We present results from a multisite (‘Whole Earth Telescope’) photometric campaign on PG 1336−018, t...
Subdwarf B (sdB) stars are horizontal branch stars with thin hydrogen envelopes surrounding a half s...
PG 1351+489 is one of the 20 DBVs – pulsating helium-atmosphere white dwarf stars – known and has th...
During the course of an ongoing CCD monitoring program to investigate low-level light variations in ...
International audienceWe present the analysis of a total of 177h of high-quality optical time-series...
The results of nine CCD photometric observing runs on KPD 0629–0016 are presented. During six of th...