K. A. Bostroem

Limits on the ejecta mass during the search for kilonovae associated with neutron star-black hole mergers: A case study of S230518h, GW230529, S230627c and the low-significance candidate S240422ed

S. Antier, K. Ackley, Tomás Ahumada, Dalya Akl et autres

Neutron star-black hole (NSBH) mergers, detectable via their gravitational-wave (GW) emission, are expected to produce kilonovae (KNe). Four NSBH candidates have been identified and followed-up by more than fifty instruments since the start of the fourth GW observing run (O4), in May …

be, fr, gb, us, ae, br, it, kr, de, ge, cz, Égypte, bd, cl, th, ua, rs, uz, nl (code pays fourni par la source)

Early Lightcurves of Type Ia Supernovae are Consistent with Nondegenerate Progenitor Companions

J. Burke, D. A. Howell, D. J. Sand, R. C. Amaro et autres

If Type Ia supernovae (SNe~Ia) result from a white dwarf being ignited by Roche lobe overflow from a nondegenerate companion, then as the supernova explosion runs into the companion star its ejecta will be shocked, causing an early blue excess in the …