B. Quarles et al 2017 ApJL 842 L5
By running thousands of N-body dynamical simulations of the TRAPPIST-1 system, scientists find that for solutions stable for millions of years, most of the planets are likely consistent with an Earth-like composition.
Chao Ma et al 2017 ApJS 230 14
A new method accurately measures the spectral energy distribution and current star formation rate of the nuclear ring in the barred spiral galaxy NGC 1512, based on high-res Hubble and Spitzer images.
R. J. Filwett et al 2017 ApJ 838 23
Analysis of suprathermal heavy ion abundances in 41 corotating interaction regions (compression regions corotating with the Sun) confirm that these ions are accelerated locally, rather than by shocks beyond 1 AU.
Kenji Kurosaki and Masahiro Ikoma 2017 AJ 153 260
Condensation of heavy elements keeps ice-giant planet atmospheres hot, accelerating the planets’ cooling. This could plausibly explain the difference between Uranus’ and Neptune’s brightnesses.
Anthony L. Piro and Sarah Burke-Spolaor 2017 ApJL 841 L30
Modeling suggests two fast radio bursts detected within 9 arcmin of each other over 3 years apart could have been both caused by a supernova that occurred within ~10.2 years of FRB 110220.
Huidong Hu et al 2017 ApJ 840 76
Extreme ultraviolet imaging, magnetogram, white-light, and in situ observations from SDO, STEREO, SOHO, VEX, and Wind reveal the dynamics and evolution of a CME ejected from an area linking two active regions.