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Coronal Mass Ejections and Exoplanets: A Numerical Perspective
Julián D. Alvarado-Gómez, Jeremy J. Drake, Ofer Cohen +3
Coronal mass ejections (CMEs) are more energetic than any other class of solar phenomena. They arise from the rapid release of up to erg of magnetic energy mainly in the…
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…
The Remarkable Spin-down and Ultra-fast Outflows of the Highly-Pulsed Supersoft Source of Nova Hercules 2021
Jeremy J. Drake, Jan-Uwe Ness, Kim L. Page +12
Nova Her 2021 (V1674 Her), which erupted on 2021 June 12, reached naked-eye brightness and has been detected from radio to -rays. An extremely fast optical decline of 2 magnitud…
New Clues to the Evolution of Dwarf Carbon Stars From Their Variability and X-ray Emission
Benjamin R. Roulston, Paul J. Green, Rodolfo Montez +6
As main-sequence stars with CO, dwarf carbon (dC) stars are never born alone but inherit carbon-enriched material from a former asymptotic giant branch (AGB) companion. In contr…
The dispersal of protoplanetary discs. II: Photoevaporation models with observationally derived irradiating spectra
Barbara Ercolano, Giovanni Picogna, Kristina Monsch +2
Young solar-type stars are known to be strong X-ray emitters and their X-ray spectra have been widely studied. X-rays from the central star may play a crucial role in the thermodyn…
Concordance: In-flight Calibration of X-ray Telescopes without Absolute References
Herman L. Marshall, Yang Chen, Jeremy J. Drake +7
We describe a process for cross-calibrating the effective areas of X-ray telescopes that observe common targets. The targets are not assumed to be "standard candles" in the classic…