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Shrinking binary and planetary orbits by Kozai cycles with tidal friction
Daniel Fabrycky, Scott Tremaine
At least two arguments suggest that the orbits of a large fraction of binary stars and extrasolar planets shrank by 1-2 orders of magnitude after formation: (i) the physical radius…
ASAS Eclipsing Binaries with Observed High Period Change Rates
B. Pilecki, D. Fabrycky, R. Poleski
We present 31 bright eclipsing contact and semi-detached binaries that showed high period change rates in a 5 year interval in observations by the All-Sky Automated Survey (ASAS).…
Cassini States with Dissipation: Why Obliquity Tides Cannot Inflate Hot Jupiters
Daniel C. Fabrycky, Eric T. Johnson, Jeremy Goodman
Some short-period exoplanets (hot Jupiters) are observed by their transits to have anomalously large radii. It has been suggested that these planets are in a resonance involving pe…
Multiperiodic Galactic field RR Lyrae stars in the ASAS catalog
D. M. Szczygiel, D. C. Fabrycky
The All Sky Automated Survey (ASAS) monitors bright stars (8 mag < V < 14 mag) south of declination +28 deg. The ASAS Catalogue of Variable Stars (ACVS) presently contains 50,099 o…