Maria A. Loukitcheva et al 2019 ApJL 877 L26
New ALMA images of a quiet-Sun region reveal the presence of distinct particularly dark/cool areas in the millimeter maps with temperatures as low as 60% of the normal quiet Sun.
Richard Galvez et al 2019 ApJS 242 7
A curated data set (encompassing 6.5 TB!) from the NASA Solar Dynamics Observatory mission is presented in a format suitable for machine-learning research in heliophysics and the physical sciences in general.
Yuhu Miao et al 2019 ApJ 877 61
Observations of NOAA active region AR11166 reveal that the appearance of a satellite sunspot led to recurrent solar blowout jets, 30% of which directly developed into coronal mass ejections.
Dary Ruíz-Rodríguez et al 2019 AJ 157 237
High-resolution ALMA observations of the circumbinary disk orbiting V4046 Sgr, a ~20-Myr-old, actively accreting binary star system, reveal a dust ring and gap structures that may be shaped by a circumbinary planet.
Juhyung Kang et al 2019 ApJL 877 L9
A new model suggests that spiral wave patterns recently detected in sunspot umbrae may be caused by slow magnetoacoustic waves driven below the solar surface.
E. T. Dunham et al 2019 ApJ 877 41
New models of the dwarf planet Haumea’s shape, structure, and composition suggest this body has a core of hydrated silicates and a thick (67 to 167 km thick!) ice crust.