4 citations · 4 across the 11 of their papers we have counts for
5 papers · 1 filter
Common envelopes at StanFest
Ilya Mandel, Ryosuke Hirai, Lewis Picker
We describe some of our group's recent work on common envelopes. Our goal is to understand the onset and outcomes of dynamically unstable mass transfer, including the properties of…
Evolution of the Convective Core Mass during the Main Sequence
Minori Shikauchi, Ryosuke Hirai, Ilya Mandel
We construct a semi-analytical model that describes the convective core mass evolution of massive stars experiencing mass loss during the main-sequence stage. We first conduct a su…
Bumpy Superluminous Supernovae Powered by a Magnetar-star Binary Engine
Jin-Ping Zhu, Liang-Duan Liu, Yun-Wei Yu +4
Wolf-Rayet stars in close binary systems can be tidally spun up by their companions, potentially leaving behind fast-spinning highly-magnetized neutron stars, known as ``magnetars"…
Fits for the convective envelope mass in massive stars
Lewis Picker, Ryosuke Hirai, Ilya Mandel
We explore the evolution of massive stars (>8 solar masses) with 1-D models and present analytical fits to the masses and binding energies of the convective portions of their envel…
Expansion of accreting main-sequence stars during rapid mass transfer
Mike Y. M. Lau, Ryosuke Hirai, Ilya Mandel +1
Accreting main-sequence stars expand significantly when the mass accretion timescale is much shorter than their thermal timescales. This occurs during mass transfer from an evolved…