7 papers
Composition of Radiation-Driven Winds from Type I X-ray Bursts
Jason S. Pero, Nevin N. Weinberg
Recent NICER observations of photospheric radius expansion (PRE) X-ray bursts reveal absorption features consistent with photospheres enriched in intermediate-mass elements. These…
Dynamical tide modified Roche limit in eccentric, asynchronous binaries
Hang Yu, Shu Yan Lau, Ethan Mckeever +2
The Roche limit, or the threshold separation within which a celestial object (the donor) M cannot remain in a stable configuration due to a companion's tidal field, has been well e…
Tidally Torn: Why the Most Common Stars May Lack Large, Habitable-Zone Moons
Shaan D. Patel, Billy Quarles, Nevin N. Weinberg +1
Earth-like planets in the habitable zone (HZ) of M-dwarfs have recently been targeted in the search for exomoons. We study the stability and lifetime of large (Luna-like) moons, ac…
Observatory Science with eXTP
Ping Zhou, Jirong Mao, Liang Zhang +97
Scheduled for launch in 2030, the enhanced X-ray Timing and Polarization (eXTP) telescope is a Chinese space-based mission aimed at studying extreme conditions and phenomena in ast…
Can Moons Exist around the Habitable-zone Planet K2-18b?
Shaan D. Patel, Billy Quarles, Manfred Cuntz +1
K2-18b closely orbits a nearby M3 dwarf within its habitable zone, where this planet could be either a super-Earth or a mini-Neptune. Recent studies using transit spectroscopy sugg…
Stability and Dynamics of Three-Mode Coupling in Scuti Stars
Mohammed Mourabit, Nevin N. Weinberg
Recent observations of Scuti stars find evidence of nonlinear three-mode coupling in their oscillation spectra. There are two types of three-mode coupling likely to be importa…