153 citations · 545 across the 9 of their papers we have counts for
9 papers
A dearth of small particles in the transiting material around the white dwarf WD 1145+017
S. Xu, S. Rappaport, R. van Lieshout +35
White dwarf WD 1145+017 is orbited by several clouds of dust, possibly emanating from actively disintegrating bodies. These dust clouds reveal themselves through deep, broad, and e…
New constraints on quantum foam models from X-ray and gamma-ray observations of distant quasars
Eric S. Perlman, Saul A. Rappaport, Y. Jack Ng +3
Astronomical observations of distant quasars may be important to test models for quantum gravity, which posit Planck-scale spatial uncertainties ('spacetime foam') that would produ…
On the Detection of Non-Transiting Exoplanets with Dusty Tails
John DeVore, Saul Rappaport, Roberto Sanchis-Ojeda +2
We present a way of searching for non-transiting exoplanets with dusty tails. In the transiting case, the extinction by dust during the transit removes more light from the beam tha…
Multiwavelength Transit Observations of the Candidate Disintegrating Planetesimals Orbiting WD 1145+017
Bryce Croll, Paul A. Dalba, Andrew Vanderburg +12
We present multiwavelength, multi-telescope, ground-based follow-up photometry of the white dwarf WD 1145+017, that has recently been suggested to be orbited by up to six or more,…
The K2-ESPRINT Project. I. Discovery of the Disintegrating Rocky Planet K2-22b with a Cometary Head and Leading Tail
R. Sanchis-Ojeda, S. Rappaport, E. Pallé +28
We present the discovery of a transiting exoplanet candidate in the K2 Field-1 with an orbital period of 9.1457 hr: K2-22b. The highly variable transit depths, ranging from 0…
New Constraints on Quantum Gravity from X-ray and Gamma-Ray Observations
Eric S. Perlman, Saul A. Rappaport, Wayne A. Christensen +3
One aspect of the quantum nature of spacetime is its "foaminess" at very small scales. Many models for spacetime foam are defined by the accumulation power , which parameterizes…