Liang Li et al 2018 ApJS 236 26

Swift/XRT light curves of 101 gamma-ray bursts suggest that a magnetar central engine is possible for 20% of the analyzed GRBs. For most GRBs, a black hole is most likely operating as the central engine.

Mariko Nomura et al 2018 ApJ 859 29

2D MHD simulations support a model in which an isolated black hole plunged into a molecular cloud to form a compact broad-velocity-width feature observed as the “Bullet” in the W44 molecular cloud.

B. T. Draine and Jordi Miralda-Escudé 2018 ApJL 858 L10

Spinning dust grains in front of the bright galactic synchrotron background can produce a weak absorption signal that could affect measurements of high-redshift 21-cm absorption.

N. Nishizuka et al 2018 ApJ 858 113

A deep neural network is used to develop a solar flare prediction model to calculate the probability of flares occurring in the following 24 hr in each active region of the Sun observed.

Masataka Aizawa et al 2018 AJ 155 206

A systematic search for rings around 168 Kepler planet candidates resulted in no detections, allowing for upper limits on the size of possible rings and constraints on models of ring formation and evolution.

Christopher P. Ahn et al 2018 ApJ 858 102

Observations and models of the most massive ultracompact dwarf galaxy, M59-UCD3, suggest its black hole is ~4 x 10⁶ M⊙ and indicate M59-UCD3 may be the tidally stripped remnant of a ~10⁹–10¹⁰ M⊙ galaxy.