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Optical linear polarization of the Be--X-ray pulsar binary LS V +44 17
Anagha P. Nitindala, Andrei V. Berdyugin, Alexandra Veledina +8
We present the optical polarization measurements for the Be--X-ray pulsar binary LS V +44 17 from its giant outburst in early 2023 and subsequently over three years. We detec…
Optical polarimetry of the accreting black hole X-ray binary Swift J1727.81613 over the state transition and radio ejections
Anagha P. Nitindala, Alexandra Veledina, Vadim Kravtsov +7
We present the first optical () polarimetric observations of Swift J1727.81613 during its 2023--2024 outburst. Observations were performed during the X-ray hard-to-soft sta…
A real-time search for Type Ia Supernovae with late-time CSM interaction in ZTF
Jacco H. Terwel, Kate Maguire, Seán J. Brennan +20
The nature of Type Ia supernova (SN Ia) progenitor systems and the mechanisms that lead up to their explosions are still widely debated. In rare cases the SN ejecta interact with c…
NICER observations of type-I X-ray bursts from the ultra-compact X-ray binary M15 X-2
María Alejandra Díaz Teodori, Jari J. E. Kajava, Celia Sánchez-Fernández +3
Type-I X-ray bursts are thermonuclear explosions caused by the unstable burning of accreted material on the surface of neutron stars. We report the detection of seven type-I X-ray…