84 citations · 610 across the 19 of their papers we have counts for
9 papers · 1 filter
Chemical abundances and doppler imaging of the Ap Si/He-wk star HD 100357
Athul Dileep, Santosh Joshi, Sofya Alexeeva +11
We present the results of time-resolved photometry, abundance analysis and Doppler imaging of an Ap star, HD 100357. The {\it TESS} photometry revealed rotational modulation with a…
The spin rates of O stars in WR + O Magellanic Cloud binaries
Michael M. Shara, Steven M. Crawford, Dany Vanbeveren +3
Some massive, merging black holes (BH) may be descendants of binary O stars. The evolution and mass transfer between these O stars determines the spins of their progeny BH. These w…
A high-mass Planetary Nebula in a Galactic Open Cluster
Vasiliki Fragkou, Quentin Parker, Albert Zijlstra +2
Planetary Nebulae are the ionised ejected envelopes surrounding the remnant cores of dying stars. Theory predicts that main-sequence stars with one to about eight times the mass of…
SB 796: a high-velocity RRc star
Roy Gomel, Sahar Shahaf, Tsevi Mazeh +6
We report here on a detailed study of a c-type RR Lyrae variable (RRc variable), SB 796, serendipitously discovered in a search of the WASP public data for stars that display large…
Nova Scorpius 1437 A.D. is now a dwarf nova, age-dated by its proper motion
Michael M. Shara, Krystian Ilkiewicz, Joanna Mikolajewska +12
Here we report the recovery of the binary underlying the classical nova of 11 March 1437 A.D. whose age is independently confirmed by proper motion-dating, and show that in the 20t…
The OmegaWhite survey for Short-Period Variable Stars III: Follow-up Photometric and Spectroscopic Observations
S. A. Macfarlane, P. A. Woudt, P. J. Groot +10
We present photometric and spectroscopic follow-up observations of short-period variables discovered in the OmegaWhite survey: a wide-field high-cadence g-band synoptic survey targ…