Brett M. Morris et al 2017 ApJ 846 99
HAT-P-11’s starspots are distributed in latitude much like sunspots near the solar activity maximum, and the majority have sizes that closely resemble the sizes of sunspots at solar maximum.
H. T. Diehl et al 2017 ApJS 232 15
Searches for strong gravitational lens systems in the Dark Energy Survey (DES) Science Verification and Year 1 observations have found 374 candidates, of which 348 are identified for the first time.
René Heller et al 2017 AJ 154 115
Photogravitational assists may be more effective when the star is used as a bumper (i.e., the light sail passes “in front of” the star) rather than as a catapult (i.e., the sail passes “behind” or “around” the star).
Avi Shporer et al 2017 ApJL 847 L18
Precise mass measurements of three K2 transiting star–planet systems — K2-51, K2-67, and K2-76 — identify them as stellar binaries with low-mass stellar secondaries, not transiting planets.
Kyle Kremer et al 2017 ApJ 846 95
Models suggest that ~2700 mass-transferring white dwarf binaries will be observable with a negative chirp of 0.1 yr−2 by a space-based gravitational-wave detector like LISA.
Benjamin E. Nelson et al 2017 AJ 154 106
Do hot Jupiters migrate inwards gently via slow disk interactions, or violently via tidal circularization of high-eccentricity orbits? Data from HAT and WASP suggest that both mechanisms may occur.