Showing 2013 · astro-ph.EPShow all

16 papers · 2 filters

astro-ph.EP2013★ 21 cited

Atmospheric Modelling for the Removal of Telluric Features from Infrared Planetary Spectra

Daniel V. Cotton, Jeremy Bailey, Lucyna Kedziora-Chudczer

The effects of telluric absorption on infrared spectra present a problem for the observer. Strong molecular absorptions from species whose concentrations vary with time can be part…

astro-ph.EP2013★ 59 cited

A Detailed Analysis of the HD 73526 2:1 Resonant Planetary System

Robert A. Wittenmyer, Xianyu Tan, Man Hoi Lee +15

We present six years of new radial-velocity data from the Anglo-Australian and Magellan Telescopes on the HD 73526 2:1 resonant planetary system. We investigate both Keplerian and…

astro-ph.EP2013★ 5 cited

Gap formation in a self-gravitating disk and the associated migration of the embedded giant planet

Hui Zhang, Huigen Liu, Ji-Lin Zhou +1

We present the results of our recent study on the interactions between a giant planet and a self-gravitating gas disk. We investigate how the disk's self-gravity affects the gap fo…

astro-ph.EP2013★ 25 cited

Revisiting the proposed circumbinary multi-planet system NSVS14256825

Tobias C. Hinse, Jae Woo Lee, Krzysztof Gozdziewski +2

In this work we carry out an analysis of the observed times of primary and secondary eclipses of the post-common envelope binary NSVS14256825. Recently, \cite{Almeida2013} proposed…

astro-ph.EP2013★ 52 cited

Main-sequence progenitor configurations of the NN Ser candidate circumbinary planetary system are dynamically unstable

Alexander J Mustill, Jonathan P Marshall, Eva Villaver +4

Recent observations of the NN Serpentis post-common envelope binary system have revealed eclipse timing variations that have been attributed to the presence of two Jovian-mass exop…

astro-ph.EP2013★ 30 cited

Star - Planet - Debris Disk Alignment in the HD 82943 system: Is planetary system coplanarity actually the norm?

G. M. Kennedy, M. C. Wyatt, G. Bryden +2

Recent results suggest that the two planets in the HD 82943 system are inclined to the sky plane by 20 +/- 4deg. Here, we show that the debris disk in this system is inclined by 27…

astro-ph.EP2013★ 1 cited

Dynamical Constraints on Exoplanets

Jonti Horner, Robert A. Wittenmyer, Chris Tinney +2

Dynamical studies of new exoplanet systems are a critical component of the discovery and characterisation process. Such studies can provide firmer constraints on the parameters of…

astro-ph.EP2013★ 57 cited

A Nearly Polar Orbit for the Extrasolar Hot Jupiter WASP-79b

B. C. Addison, C. G. Tinney, D. J. Wright +5

We report the measurement of a spin-orbit misalignment for WASP-79b, a recently discovered, bloated transiting hot Jupiter from the WASP survey. Data were obtained using the CYCLOP…

astro-ph.EP2013★ 90 cited

A Detailed Dynamical Investigation of the Proposed QS Virginis Planetary System

Jonathan Horner, Robert A Wittenmyer, Tobias C Hinse +3

In recent years, a number of planetary systems have been proposed to orbit evolved binary star systems. The presence of planets is invoked to explain observed variations in the tim…

astro-ph.EP2013★ 39 cited

Examining the broadband emission spectrum of WASP-19b: A new z band eclipse detection

George Zhou, Lucyna Kedziora-Chudczer, Daniel D. R. Bayliss +1

WASP-19b is one of the most irradiated hot-Jupiters known. Its secondary eclipse is the deepest of all transiting planets, and has been measured in multiple optical and infrared ba…

astro-ph.EP2013★ 109 cited

Forever alone? Testing single eccentric planetary systems for multiple companions

Robert A. Wittenmyer, Songhu Wang, Jonathan Horner +9

Determining the orbital eccentricity of an extrasolar planet is critically important for understanding the system's dynamical environment and history. However, eccentricity is ofte…

astro-ph.EP2013★ 67 cited

HATS-3b: An inflated hot Jupiter transiting an F-type star

D. Bayliss, G. Zhou, K. Penev +26

We report the discovery by the HATSouth survey of HATS-3b, a transiting extrasolar planet orbiting a V=12.4 F-dwarf star. HATS-3b has a period of P = 3.5479d, mass of Mp = 1.07MJ,…

astro-ph.EP2013★ 17 cited

A portrait of the extreme Solar System object 2012 DR30

Cs. Kiss, Gy. Szabó, J. Horner +15

2012 DR30 is a recently discovered Solar System object on a unique orbit, with a high eccentricity of 0.9867, a perihelion distance of 14.54 AU and a semi-major axis of 1109 AU, in…

astro-ph.EP2013★ 59 cited

HATS-2b: A transiting extrasolar planet orbiting a K-type star showing starspot activity

M. Mohler-Fischer, L. Mancini, J. D. Hartman +24

We report the discovery of HATS-2b, the second transiting extrasolar planet detected by the HATSouth survey. HATS-2b is moving on a circular orbit around a V=13.6 mag, K-type dwarf…

astro-ph.EP2013★ 40 cited

Observing Strategies for the Detection of Jupiter Analogs

Robert A. Wittenmyer, J. Horner, R. P. Butler +6

To understand the frequency, and thus the formation and evolution, of planetary systems like our own solar system, it is critical to detect Jupiter-like planets in Jupiter-like orb…

astro-ph.EP2013★ 91 cited

On the dynamical stability of the proposed planetary system orbiting NSVS 14256825

Robert A. Wittenmyer, Jonathan Horner, Jonathan Marshall

We present a detailed dynamical analysis of the orbital stability of the two circumbinary planets recently proposed to orbit the evolved eclipsing binary star system NSVS 14256825.…