Mikkel N. Lund et al 2019 AJ 158 248
Asteroseismic characterization of K2-93, a star that hosts five planets from sub-Neptune to Jupiter size, constrains the stellar parameters and the orbital periods of the outer planets.
Carolin Wittmann et al 2019 ApJS 245 10
A catalog of 5,437 morphologically classified sources is presented in the direction of the Perseus galaxy cluster core — among them 496 early-type low-mass galaxy candidates.
K. Hagiwara et al 2019 ApJL 887 L6
A search for GeV to TeV neutrinos from blazar TXS 0506+056 by the Super-Kamiokande detector found no excess, despite the 2017 detection of a 290 TeV neutrino event from this direction by IceCube.
Apurva V. Oza et al 2019 ApJ 885 168
Though exomoons are usually too small to detect, observations of sodium and potassium gas in hot Jupiter atmospheres could be a signature of the geological activity venting from an otherwise hidden exo-Io.
Lynne A. Hillenbrand et al 2019 AJ 158 240
The slow rise observed in the optical lightcurve of Gaia 19ajj, a young star associated with a little-studied star-forming region, may be caused by cycles of enhanced disk accretion accompanied by reduced extinction.
M. G. Aartsen et al 2019 ApJ 886 12
Seven years of searching with IceCube for cascade events with energies as low as ~1 TeV induced by neutrinos of all flavors has revealed no significant clustering, placing stringent constraints on neutrino astronomy.