269 citations · 2k across the 53 of their papers we have counts for
Showing 2017Show all
2 papers · 1 filter
astro-ph.GA2017★ 17 cited
Chemical Abundances of Planetary Nebulae in the Substructures of M31 -- II. The Extended Sample and A Comparison Study with the Outer-disk Group
Xuan Fang, Ruben Garcia-Benito, Martin A. Guerrero +7
We report deep spectroscopy of ten planetary nebulae (PNe) in the Andromeda Galaxy (M31) using the 10.4m GTC. Our targets reside in different regions of M31, including halo streams…
astro-ph.EP2017★ 14 cited
The formation of giant planets in wide orbits by photoevaporation-synchronised migration
O. M. Guilera, M. M. Miller Bertolami, M. P. Ronco
The discovery of giant planets in wide orbits represents a major challenge for planet formation theory. In the standard core accretion paradigm planets are expected to form at radi…