Sandeep K. Rout et al 2020 ApJL 888 L30
Spectral analysis of the galactic black hole binary MAXI J1659−152 indicates the spin of the black hole has to be negative — marking the first clear detection of negative spin in a galactic black hole binary.
Jonathan Brande et al 2020 AJ 159 18
Simulations suggest that the coronagraphs on the Mid-infrared Instrument on the upcoming James Webb Space Telescope could conceivably directly detect Jupiter-like planets around nearby M dwarfs.
Joss Bland-Hawthorn et al 2019 ApJ 886 45
New observations show that some Magellanic Stream clouds toward both galactic poles are highly ionized, suggesting a past burst or flare of ionizing radiation from the supermassive black hole at our galaxy’s center.
T. H. Jarrett et al 2019 ApJS 245 25
A new catalog contains mid-infrared photometry and measured global properties of the 100 largest galaxies in the sky, including the Magellanic Clouds, Local Group galaxies M31 and M33, and the Fornax and Virgo galaxy cluster giants.
Qiaoling Li et al 2019 ApJ 886 149
Observations of sunspots in three regions of the active region NOAA 12673 show that sunspot penumbrae evolve through the interaction of the preexisting magnetic field system and the later-emerging magnetic field system.
Smadar Naoz et al 2020 ApJL 888 L8
Could a supermassive black hole binary exist in our galactic center, rather than a singlesupermassive black hole? New calculations place limits on the properties of the companion to Sgr A*, should it exist.