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- Center for Astrophysics Harvard & SmithsonianUS325 papers
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16 papers · 2 filters
Planets Around Low-Mass Stars (PALMS). IV. The Outer Architecture of M Dwarf Planetary Systems
Brendan P. Bowler, Michael C. Liu, Evgenya L. Shkolnik +1
We present results from a high-contrast adaptive optics imaging search for giant planets and brown dwarfs (>1 MJup) around 122 newly identified nearby (<40 pc) young M dwarfs. Half…
Observations of Comet ISON (C/2012 S1) from Lowell Observatory
Matthew M. Knight, David G. Schleicher
We observed dynamically new sungrazing comet ISON (C/2012 S1) extensively at Lowell Observatory throughout 2013 in order to characterize its behavior prior to perihelion. ISON had…
Rotationally Resolved Spectroscopy of Asteroid Pairs: No Spectral Variation Suggests Fission is followed by Settling of Dust
David Polishook, Nicholas Moskovitz, Francesca DeMeo +1
We examine the spectral properties of asteroid pairs that were disrupted in the last 2 Myrs to examine whether the site of the fission can be revealed. We studied the possibility t…
Optical Properties of (162173) 1999 JU3: In Preparation for the JAXA Hayabusa 2 Sample Return Mission
Masateru Ishiguro, Daisuke Kuroda, Sunao Hasegawa +31
We investigated the magnitude-phase relation of (162173) 1999 JU3, a target asteroid for the JAXA Hayabusa 2 sample return mission. We initially employed the international Astronom…
Warm Ice Giant GJ 3470b. II Revised Planetary and Stellar Parameters from Optical to Near-infrared Transit Photometry
Lauren I. Biddle, Kyle A. Pearson, Ian J. M. Crossfield +19
It is important to explore the diversity of characteristics of low-mass, low-density planets to understand the nature and evolution of this class of planets. We present a homogeneo…
Secular orbital evolution of planetary systems and the dearth of close-in planets around fast rotators
A. F. Lanza, E. L. Shkolnik
Recent analyses of Kepler space telescope data reveal that transiting planets with orbital periods shorter than about 2-3 days are generally observed around late-type stars with ro…