Publications (11)
The mu Arae planetary system: Radial velocities and astrometry
G. F. Benedict, B. E. McArthur, E. P. Nelan +4
With Hubble Space Telescope Fine Guidance Sensor astrometry and published and previously unpublished radial velocity measures we explore the exoplanetary system mu Arae. Our modeli…
The EBLM project. II. A very hot, low-mass M dwarf in an eccentric and long period eclipsing binary system from SuperWASP
Y. Gómez Maqueo Chew, J. C. Morales, F. Faedi +16
In this paper, we derive the fundamental properties of 1SWASPJ011351.29+314909.7 (J0113+31), a metal-poor (-0.40 +/- 0.04 dex), eclipsing binary in an eccentric orbit (~0.3) with a…
Effects of Extreme Obliquity Variations on the Habitability of Exoplanets
J. C. Armstrong, R. Barnes, S. Domagal-Goldman +3
We explore the impact of obliquity variations on planetary habitability in hypothetical systems with high mutual inclination. We show that large amplitude, high frequency obliquity…
Routing by matching on convex pieces of grid graphs
H. Alpert, R. Barnes, S. Bell +4
The routing number is a graph invariant introduced by Alon, Chung, and Graham in 1994, and it has been studied for trees and other classes of graphs such as hypercubes. It gives th…
A Symplectic Integrator for Hill's Equations
T. Quinn, R. P. Perrine, D. C. Richardson +1
Hill's equations are an approximation that is useful in a number of areas of astrophysics including planetary rings and planetesimal disks. We derive a symplectic method for integr…
The CARMENES search for exoplanets around M dwarfs. Dynamical characterization of the multiple planet system GJ 1148 and prospects of habitable exomoons around GJ 1148 b
T. Trifonov, M. H. Lee, M. Kürster +29
Context. GJ 1148 is an M-dwarf star hosting a planetary system composed of two Saturn-mass planets in eccentric orbits with periods of 41.38 and 532.02 days. Aims. We reanalyze the…
The extreme physical properties of the CoRoT-7b super-Earth
A. Léger, O. Grasset, B. Fegley +23
The search for rocky exoplanets plays an important role in our quest for extra-terrestrial life. Here, we discuss the extreme physical properties possible for the first characteriz…
APOSTLE Observations of GJ 1214b: System Parameters and Evidence for Stellar Activity
P. Kundurthy, E. Agol, A. C. Becker +3
We present three transits of GJ 1214b, observed as part of the Apache Point Observatory Survey of Transit Lightcurves of Exoplanets (APOSTLE). We used APOSTLE r-band lightcurves in…
Impact of Space Weather on Climate and Habitability of Terrestrial Type Exoplanets
V. S. Airapetian, R. Barnes, O. Cohen +43
The current progress in the detection of terrestrial type exoplanets has opened a new avenue in the characterization of exoplanetary atmospheres and in the search for biosignatures…
Consequences of Tidal Dissipation in a Putative Venusian Ocean
J. A. M. Green, M. J. Way, R. Barnes
The solar tide in an ancient Venusian ocean is simulated using a dedicated numerical tidal model. Simulations with varying ocean depth and rotational periods ranging from -243 to 6…
Luminosity Discrepancy in the Equal-Mass, Pre--Main Sequence Eclipsing Binary Par 1802: Non-Coevality or Tidal Heating?
Y. Gómez Maqueo Chew, K. G. Stassun, A. Prša +5
Parenago 1802, a member of the ~1 Myr Orion Nebula Cluster, is a double-lined, detached eclipsing binary in a 4.674 d orbit, with equal-mass components (M_2/M_1 = 0.985 \pm 0.029).…