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X-Ray-luminous Supernovae: Threats to Terrestrial Biospheres
The Astrophysical Journal, 2023 The spectacular outbursts of energy associated with supernovae (SNe) have long motivated research into their potentially hazardous effects on Earth and analogous environments.
Ian R. Brunton +4 more
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Transient X-ray source A1118—61 [PDF]
Nature, 1976 THE transient X-ray source Ariel 1118—61 was discovered late in 1974 (refs 1, 2). It has been suggested3 that this source may be associated with the long period Mira-type variable RS Cen, which is located within the error box for the X-ray source.
P. J. N. DAVISON, P. W. SANFORD
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Recent Transient X-Ray Sources [PDF]
Highlights of Astronomy, 1977 Prior to the launch of the Ariel V satellite in 1974, four transient X-ray sources had been observed. We placed the study of sources of this type amongst the major objectives of the satellite, and so ensured that the spacecraft ground centre was capable of quick reaction, and that experimenters had rapid access to their data, so that new transients ...
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Vacuum birefringence and X-ray polarimetry in transient magnetars [PDF]
, 2017 Recent optical polarimetry observations of an X-ray dim isolated neutron star, RX J1856.5-3754, showed a first evidence for QED vacuum birefringence induced by a strong magnetic field.
D González-Caniulef +17 more
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The RS Oph Outburst of 2021 Monitored in X-Rays with NICER
The Astrophysical Journal, 2023 The 2021 outburst of the symbiotic recurrent nova RS Oph was monitored with the Neutron Star Interior Composition Explorer Mission (NICER) in the 0.2–12 keV range from day one after the optical maximum, until day 88, producing an unprecedented, detailed ...
Marina Orio +21 more
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Return of 4U 1730–22 after 49 yr Silence: The Outburst Properties Observed by NICER and Insight-HXMT
The Astrophysical Journal Letters, 2022 After 49 yr of quiescence, 4U 1730–22 became active and had two outbursts in 2021 and 2022; the onset and tail of the outbursts were observed by NICER, which give us a peerless opportunity to study the state transition and its underlying mechanism.
Yu-Peng Chen +12 more
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Precession in transient X-ray sources [PDF]
Nature, 1975 THE origin of both the relatively long period and the transient nature of the recently discovered X-ray sources Ariel 1118−61 (ref. 1) and Ariel 0535+26 (ref. 2), with pulse periods of about 405 and 104 s, respectively, and decay times of days, is unclear. The pulse rate of A1118−61 has been attributed to an extremely short binary star orbital period3,
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A microservice-based portal for X-ray transient and variable sources [PDF]
, 2016 Modern soft X-ray observatories can yield unique insights into time domain astrophysics, and a huge amount of information is stored - and largely unexploited - in data archives. Like a treasure-hunt, the EXTraS project is harvesting the hitherto unexplored temporal domain information buried in the serendipitous data collected by the European Photon ...
DAgostino, Daniele +8 more
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DISCOVERY OF MILLIHERTZ X-RAY OSCILLATIONS IN A TRANSIENT ULTRALUMINOUS X-RAY SOURCE IN M82 [PDF]
The Astrophysical Journal, 2010 5 pages, 1 figure, accepted for publication in The Astrophysical Journal ...
Feng, Hua, Rao, Fengyun, Kaaret, Philip
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Supersoft luminous X-ray sources in galactic nuclei [PDF]
, 2023 Context. Tidal disruption events (TDEs) are usually discovered at X-ray or optical wavelengths through their transient nature. A characteristic spectral feature of X-ray detected TDEs is a ‘supersoft’ X-ray emission, not observed in any other ...
G. Risaliti +5 more
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