Showing 2025 · astro-ph.HEShow all

27 papers · 2 filters

astro-ph.HE2025★ 1 cited

Mini-supernovae from white dwarf-neutron star mergers: Viewing-angle-dependent spectra and lightcurves

Yacheng Kang, Jin-Ping Zhu, Lijing Shao +3

Unstable mass transfer may occur during white dwarf-neutron star (WD-NS) mergers, in which the WD can be tidally disrupted and form an accretion disk around the NS. Such an accreti…

astro-ph.HE2025★ 1 cited

Frequency- and phase-resolved polarimetry of millisecond pulsars and its application to timing

Małgorzata Curyło, Andrew Zic, Shuangqiang Wang +16

Pulsar timing is used for a variety of applications including tests of fundamental physics, probing the structure of neutron stars, and detecting nanohertz gravitational waves. Dev…

astro-ph.HE2025

Trends in gravitational wave emission in axisymmetric simulations of rotating core-collapse supernovae

Bailey Sykes, Bernhard Müller

The quantitative impact of strong rotation on the amplitudes and frequencies of the post-bounce gravitational wave (GW) signal from core-collapse supernovae (CCSNe) is still not fu…

astro-ph.HE2025

The broad-lined type Ic supernova 2020lao experienced an energetic explosion with no central-engine signatures

M. D. Stritzinger, T. J. Moriya, S. Bose +18

We present infant-phase observations of the SN Ic-BL 2020lao, including optical spectroscopy beginning 48 hrs after explosion. The explosion time was constrained by power-law fits…

astro-ph.HE2025★ 3 cited

Not all roads lead to merger: AGN disc properties influence the interactions of highly unequal mass black holes

Jordan W. N. Moncrieff, Evgeni Grishin, Alessandro A. Trani +2

As the number of gravitational-wave detections of black hole binaries grows, so does the diversity of proposed formation channels. The growing sample of systems with highly unequal…

astro-ph.HE2025★ 6 cited

Natal kicks of compact objects

Sergei Popov, Bernhard Müller, Ilya Mandel

When compact objects - neutron stars and black holes - are formed in a supernova explosion, they may receive a high velocity at formation, which may reach or even exceed 1000 km s-…