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Prospects for the In Situ detection of Comet C/2019 Y4 ATLAS by Solar Orbiter
Afghan, Qasim; Jones, Geraint H.; Price, Oliver
The European Space Agency's Solar Orbiter spacecraft will pass approximately downstream of the position of comet C/2019 Y4 (ATLAS) in late May and early June 2020. We predict that the spacecraft may encounter the comet's ion tail around 2020 May 31—June 1, and that the comet's dust tail may be crossed on 2020 June 6. We outline the solar wind feat…
Non-detection of M60-UCD1 in Quasi-simultaneous X-Ray and Radio Observations
Jonker, Peter G.; Lena, Davide; Miller-Jones, James C. A. +1 more
Simultaneous detection in X-rays and radio, following the proportionality implied by the "fundamental plane of black hole activity," can indicate the presence of an accreting black hole (BH), allowing a rough estimate of its mass. We used the XMM-Newton satellite and the Karl G. Jansky Very Large Array to perform quasi-simultaneous observations (w…