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- Carnegie ObservatoriesUS565 papers
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91 papers · 1 filter
LSQ13ddu: A rapidly-evolving stripped-envelope supernova with early circumstellar interaction signatures
Peter Clark, Kate Maguire, Cosimo Inserra +30
This paper describes the rapidly evolving and unusual supernova LSQ13ddu, discovered by the La Silla-QUEST survey. LSQ13ddu displayed a rapid rise of just 4.80.9 d to reach a…
Metallicity and -element Abundance Gradients along the Sagittarius Stream as Seen by APOGEE
Christian R. Hayes, Steven R. Majewski, Sten Hasselquist +27
Using 3D positions and kinematics of stars relative to the Sagittarius (Sgr) orbital plane and angular momentum, we identify 166 Sgr stream members observed by the Apache Point Obs…
A record of the final phase of giant planet migration fossilized in the asteroid belt's orbital structure
Matthew S. Clement, Alessandro Morbidelli, Sean N. Raymond +1
The asteroid belt is characterized by an extreme low total mass of material on dynamically excited orbits. The Nice Model explains many peculiar qualities of the solar system, incl…
Elemental Abundances in M31: The Kinematics and Chemical Evolution of Dwarf Spheroidal Satellite Galaxies
Evan N. Kirby, Karoline M. Gilbert, Ivanna Escala +4
We present deep spectroscopy from Keck/DEIMOS of Andromeda I, III, V, VII, and X, all of which are dwarf spheroidal satellites of M31. The sample includes 256 spectroscopic members…
Cool Jupiters greatly outnumber their toasty siblings: Occurrence rates from the Anglo-Australian Planet Search
Robert A. Wittenmyer, Songhu Wang, Jonathan Horner +8
Our understanding of planetary systems different to our own has grown dramatically in the past 30 years. However, our efforts to ascertain the degree to which the Solar system is a…
Do Metal-Rich Stars Make Metal-Rich Planets? New Insights on Giant Planet Formation from Host Star Abundances
Johanna K. Teske, Daniel Thorngren, Jonathan J. Fortney +2
The relationship between the compositions of giant planets and their host stars is of fundamental interest in understanding planet formation. The solar system giant planets are enh…