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19912026
Showing 2015 · astro-ph.EPShow all

49 papers · 2 filters

astro-ph.EP2015★ 87 cited

A Search for Water in the Atmosphere of HAT-P-26b Using LDSS-3C

Kevin B. Stevenson, Jacob L. Bean, Andreas Seifahrt +4

The characterization of a physically-diverse set of transiting exoplanets is an important and necessary step towards establishing the physical properties linked to the production o…

astro-ph.EP2015★ 43 cited

Neptune's Dynamic Atmosphere from Kepler K2 Observations: Implications for Brown Dwarf Light Curve Analyses

Amy A. Simon, Jason F. Rowe, Patrick Gaulme +9

Observations of Neptune with the Kepler Space Telescope yield a 49-day light curve with 98% coverage at a 1-minute cadence. A significant signature in the light curve comes from di…

astro-ph.EP2015★ 979 cited

A continuum from clear to cloudy hot-Jupiter exoplanets without primordial water depletion

David K. Sing, Jonathan J. Fortney, Nikolay Nikolov +18

Thousands of transiting exoplanets have been discovered, but spectral analysis of their atmospheres has so far been dominated by a small number of exoplanets and data spanning rela…

astro-ph.EP2015★ 22 cited

A Multiple Scattering Polarized Radiative Transfer Model: Application to HD 189733b

Pushkar Kopparla, Vijay Natraj, Xi Zhang +3

We present a multiple scattering vector radiative transfer model which produces disk integrated, full phase polarized light curves for reflected light from an exoplanetary atmosphe…

astro-ph.EP2015★ 143 cited

3.6 and 4.5 m Phase Curves of the Highly-Irradiated Hot Jupiters WASP-19b and HAT-P-7b

Ian Wong, Heather A. Knutson, Tiffany Kataria +15

We analyze full-orbit phase curve observations of the transiting hot Jupiters WASP-19b and HAT-P-7b at 3.6 and 4.5 m obtained using the Spitzer Space Telescope. For WASP-19b, we…

astro-ph.EP2015★ 238 cited

Planetary Candidates Observed by Kepler. VII. The First Fully Uniform Catalog Based on The Entire 48 Month Dataset (Q1-Q17 DR24)

Jeffrey L. Coughlin, F. Mullally, Susan E. Thompson +32

We present the seventh Kepler planet candidate catalog, which is the first to be based on the entire, uniformly processed, 48 month Kepler dataset. This is the first fully automate…

astro-ph.EP2015★ 43 cited

The Lick-Carnegie Exoplanet Survey: HD32963 -- A New Jupiter Analog Orbiting a Sun-like Star

Dominick Rowan, Stefano Meschiari, Gregory Laughlin +10

We present a set of 109 new, high-precision Keck/HIRES radial velocity (RV) observations for the solar-type star HD 32963. Our dataset reveals a candidate planetary signal with a p…

astro-ph.EP2015★ 81 cited

A Characteristic Transmission Spectrum dominated by HO applies to the majority of HST/WFC3 exoplanet observations

Aishwarya R. Iyer, Mark R. Swain, Robert T. Zellem +4

Currently, 19 transiting exoplanets have published transmission spectra obtained with the Hubble/WFC3 G141 near-IR grism. Using this sample, we have undertaken a uniform analysis i…

astro-ph.EP2015★ 70 cited

The LEECH Exoplanet Imaging Survey: Characterization of the Coldest Directly Imaged Exoplanet, GJ 504 b, and Evidence for Super-Stellar Metallicity

Andrew J. Skemer, Caroline V. Morley, Neil T. Zimmerman +39

As gas giant planets and brown dwarfs radiate away the residual heat from their formation, they cool through a spectral type transition from L to T, which encompasses the dissipati…

astro-ph.EP2015★ 50 cited

First Scattered-Light Image of the Debris Disk around HD 131835 with the Gemini Planet Imager

Li-Wei Hung, Gaspard Duchêne, Pauline Arriaga +34

We present the first scattered-light image of the debris disk around HD 131835 in band using the Gemini Planet Imager. HD 131835 is a 15 Myr old A2IV star at a distance o…

astro-ph.EP2015★ 386 cited

Characterizing transiting exoplanet atmospheres with JWST

Thomas P. Greene, Michael R. Line, Cezar Montero +3

We explore how well James Webb Space Telescope (JWST) spectra will likely constrain bulk atmospheric properties of transiting exoplanets. We start by modeling the atmospheres of ar…

astro-ph.EP2015★ 1 cited

Completely Colorblind: Advances in Gray Techniques and Applications to Planets Near and Far

Tyler D. Robinson

Gray models, which replace spectrally-resolved opacities with a wavelength independent mean opacity, are currently seeing wide and diverse application. In this brief review, we dis…

astro-ph.EP2015★ 95 cited

Magellan Adaptive Optics first-light observations of the exoplanet beta Pic b. II. 3-5 micron direct imaging with MagAO+Clio, and the empirical bolometric luminosity of a self-luminous giant planet

Katie M. Morzinski, Jared R. Males, Andy J. Skemer +14

Young giant exoplanets are a unique laboratory for understanding cool, low-gravity atmospheres. A quintessential example is the massive extrasolar planet Pic b, which is 9 AU f…

astro-ph.EP2015★ 256 cited

Thermal Emission and Albedo Spectra of Super Earths with Flat Transmission Spectra

Caroline V. Morley, Jonathan J. Fortney, Mark S. Marley +5

Planets larger than Earth and smaller than Neptune are some of the most numerous in the galaxy, but observational efforts to understand this population have proved challenging beca…

astro-ph.EP2015★ 222 cited

The Influence of Non-Uniform Cloud Cover on Transit Transmission Spectra

Michael R. Line, Vivien Parmentier

We model the impact of non-uniform cloud cover on transit transmission spectra. Patchy clouds exist in nearly every solar system atmosphere, brown dwarfs, and transiting exoplanets…

astro-ph.EP2015★ 265 cited

In Situ Formation and Dynamical Evolution of Hot Jupiter Systems

Konstantin Batygin, Peter H. Bodenheimer, Gregory P. Laughlin

Hot Jupiters, giant extrasolar planets with orbital periods shorter than ~10 days, have long been thought to form at large radial distances, only to subsequently experience long-ra…

astro-ph.EP2015★ 437 cited

The Mass-Metallicity Relation for Giant Planets

Daniel P. Thorngren, Jonathan J. Fortney, Ruth A. Murray-Clay +1

Exoplanet discoveries of recent years have provided a great deal of new data for studying the bulk compositions of giant planets. Here we identify 47 transiting giant planets ($20…

astro-ph.EP2015★ 30 cited

Reflected Light Curves, Spherical and Bond Albedos of Jupiter- and Saturn-like Exoplanets

Ulyana Dyudina, Xi Zhang, Liming Li +5

Reflected light curves observed for exoplanets indicate bright clouds at some of them. We estimate how the light curve and total stellar heating of a planet depend on forward and b…

astro-ph.EP2015★ 485 cited

The Pluto system: Initial results from its exploration by New Horizons

S. A. Stern, F. Bagenal, K. Ennico +148

The Pluto system was recently explored by NASA's New Horizons spacecraft, making closest approach on 14 July 2015. Pluto's surface displays diverse landforms, terrain ages, albedos…

astro-ph.EP2015★ 97 cited

Giant Impact: An Efficient Mechanism for the Devolatilization of Super-Earths

Shang-Fei Liu, Yasunori Hori, D. N. C. Lin +1

Mini-Neptunes and volatile-poor super-Earths coexist on adjacent orbits in proximity to host stars such as Kepler-36 and Kepler-11. Several post-formation processes have been propo…

astro-ph.EP2015★ 33 cited

The Transit Transmission Spectrum of a Cold Gas Giant Planet

Paul A. Dalba, Philip S. Muirhead, Jonathan J. Fortney +3

We use solar occultations observed by the Visual and Infrared Mapping Spectrometer aboard the Cassini Spacecraft to extract the 1 to 5 micron transmission spectrum of Saturn, as if…

astro-ph.EP2015

Direct imaging of an asymmetric debris disk in the HD 106906 planetary system

Paul G. Kalas, Abhijith Rajan, Jason J. Wang +53

We present the first scattered light detections of the HD 106906 debris disk using Gemini/GPI in the infrared and HST/ACS in the optical. HD 106906 is a 13 Myr old F5V star in the…

astro-ph.EP2015★ 96 cited

Re-inflated Warm Jupiters Around Red Giants

Eric D. Lopez, Jonathan J. Fortney

Since the discovery of the first transiting hot Jupiters, models have sought to explain the anomalously large radii of highly irradiated gas giants. We now know that the size of ho…

astro-ph.EP2015★ 131 cited

Pictoris' inner disk in polarized light and new orbital parameters for Pictoris b

Maxwell A. Millar-Blanchaer, James R. Graham, Laurent Pueyo +54

We present -band observations of Pic with the Gemini Planet Imager's (GPI's) polarimetry mode that reveal the debris disk between ~0.3" (~6 AU) and ~1.7" (~33 AU), while sim…