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4 papers · 2 filters
Herschel HIFI observations of ionised carbon in the β Pictoris debris disk
G. Cataldi, A. Brandeker, G. Olofsson +9
Context: The dusty debris disk around the 20 Myr old main-sequence A-star β Pictoris is known to contain gas. Evidence points towards a secondary origin of the gas as opposed…
An Earth-sized planet with an Earth-like density
Francesco Pepe, Andrew Collier Cameron, David W. Latham +31
Kepler-78 (KIC 8435766) was identified by Sanchis-Ojeda et al. (2013) as harbouring a transiting planet of 1.16 times the size of the Earth and an orbital period of only 8.5 hours.…
On the Possibility of Detecting Class A Stellar Engines Using Exoplanet Transit Curves
Duncan H. Forgan
The Class A stellar engine (also known as a Shkadov thruster) is a spherical arc mirror, designed to use the impulse from a star's radiation pressure to generate a thrust force, pe…
Asteroids' physical models from combined dense and sparse photometry and scaling of the YORP effect by the observed obliquity distribution
J. Hanuš, J. Ďurech, M. Brož +116
The larger number of models of asteroid shapes and their rotational states derived by the lightcurve inversion give us better insight into both the nature of individual objects and…