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Evidence of a Massive Stellar Disruption in the X-ray Spectrum of ASASSN-14li
J. M. Miller, B. Mockler, E. Ramirez-Ruiz +7
The proximity and duration of the tidal disruption event (TDE) ASASSN-14li led to the discovery of narrow, blue-shifted absorption lines in X-rays and UV. The gas seen in X-ray abs…
Non-thermal -rays from pulsation-driven shocks in Cepheids
Federico Fraschetti, Konstantina Anastasopoulou, Jeremy J. Drake +1
Rapid X-ray phase-dependent flux enhancement in the archetype classical Cepheid star ~Cep was observed by XMM-Newton and Chandra. We jointly analyse thermal and non-thermal comp…
Shocks in the outflow of the RS Oph 2021 eruption observed with X-ray gratings
Marina Orio, Ehud Behar, Juan Luna +9
The 2021 outburst of the symbiotic recurrent nova RS Oph was observed with the Chandra High Energy Transmission Gratings (HETG) on day 18 after optical maximum and with XMM-Newton…
The 2021 outburst of the recurrent nova RS Ophiuchi observed in X-rays by the Neil Gehrels Swift Observatory: a comparative study
K. L. Page, A. P. Beardmore, J. P. Osborne +12
On 2021 August 8, the recurrent nova RS Ophiuchi erupted again, after an interval of 15.5 yr. Regular monitoring by the Neil Gehrels Swift Observatory began promptly, on August 9.9…
Eclipse Mapping of EXO 0748-676: Evidence for a Massive Neutron Star
Amy H. Knight, Adam Ingram, Matthew Middleton +1
Determining the maximum possible neutron star (NS) mass places limits on the equation of state (EoS) of ultra-dense matter. The mass of NSs in low mass X-ray binaries can be determ…
The Super-Soft Source Phase of the recurrent nova V3890 Sgr
J. -U. Ness, A. P. Beardmore, P. Bezak +9
The 30-year recurrent symbiotic nova V3890 Sgr exploded 2019 August 28 and was observed with multiple X-ray telescopes. An XMM-Newton observation during the SSS phase captured a hi…