240 citations · 3.6k across the 99 of their papers we have counts for
7 papers · 1 filter
Pulsation models for the roAp star HD 134214
H. Saio, M. Gruberbauer, W. W. Weiss +2
Precise time-series photometry with the MOST satellite has led to identification of 10 pulsation frequencies in the rapidly oscillating Ap (roAp) star HD 134214. We have fitted the…
New SPB stars in the field of the young open cluster NGC 2244 discovered by the MOST photometric satellite
D. Gruber, H. Saio, R. Kuschnig +9
During two weeks of nearly continuous optical photometry of the young open cluster NGC 2244 obtained by the MOST satellite, we discovered two new SPB stars, GSC 00154-00785 and GSC…
A comparison of oscillation frequencies of rotating stars obtained by one- and two-dimensional calculations
Hideyuki Saio, Robert G. Deupree
We discuss how the p- and g-mode frequencies calculated for rotating stars are affected by the way of including the centrifugal deformations. We find that p-mode frequencies are se…
Physics of stars understood/expected from asteroesismology
Hideyuki Saio
What can be learned about the physics of stellar interiors from studying stellar oscillations? This review address the potential to improve our understandings of convective core ov…
A Single Degenerate Progenitor Model for Type Ia Supernovae Highly Exceeding the Chandrasekhar Mass Limit
Izumi Hachisu, Mariko Kato, Hideyuki Saio +1
Recent observations of Type Ia supernovae (SNe Ia) suggest that some of the progenitor white dwarfs (WDs) had masses up to 2.4-2.8 M_sun, highly exceeding the Chandrasekhar mass li…
Double white dwarf mergers and elemental surface abundances in extreme helium and R Coronae Borealis stars
C. Simon Jeffery, Amanda I. Karakas, Hideyuki Saio
The surface abundances of extreme helium (EHe) and R Coronae Borealis (RCB) stars are discussed in terms of the merger of a carbon-oxygen white dwarf with a helium white dwarf. The…