Zachary P. Vanderbosch et al 2021 ApJ 917 41
Follow-up observations of a white dwarf suspected of hosting circumstellar debris reveal variability with two distinct periods, potentially due to two clumps of dusty debris, like comets or asteroids.
Abigail M. Rymer et al 2021 Planet. Sci. J. 2 184
A new Flagship-class mission concept includes a 12-year cruise to Neptune, four years orbiting the ice giant and observing its moon, Triton, and an atmospheric entry probe.
L. Baldini et al 2021 ApJS 256 13
A search for transient gamma-ray emitters by the Fermi Large Area Telescope yields 142 new sources, 102 of which are associated with active galactic nuclei.
Konstantinos Dialynas et al 2021 ApJ 917 42
Voyager 1 observations from beyond the boundary of our solar system suggest that particles may be “leaking” through the heliopause into the local interstellar medium.
Paula Szkody et al 2021 AJ 162 94
Of the 279 new cataclysmic variable candidate objects generated in year two of the Zwicky Transient Facility, four are confirmed via their emission lines and one is found to be a magnetic white dwarf.
Huichao Li et al 2021 ApJL 917 L26
Analysis of the solar corona and solar wind suggests that solar cycle 24/25 is not entirely unusual, and that the Sun’s polar magnetic field strength may be a useful way to characterize solar minima.