English
Related papers

Related papers: Debris Disks in Kepler Exoplanet Systems

200 papers

Radio wavelength astrometry of stars and other objects has a long and productive history. The use of that technique to determine whether stars have planets around them would cover a nearly unique part of the parameter space for detection of…

Earth and Planetary Astrophysics · Physics 2018-10-22 Bryan J. Butler , Brenda C. Matthews

The Keck Interferometer Nuller (KIN) was used to survey 25 nearby main sequence stars in the mid-infrared, in order to assess the prevalence of warm circumstellar (exozodiacal) dust around nearby solar-type stars. The KIN measures…

The first indication of the presence of a circumstellar debris disk is usually the detection of excess infrared emission from the population of small dust grains orbiting the star. This dust is short-lived, requiring continual…

Earth and Planetary Astrophysics · Physics 2016-07-27 Erika R. Nesvold , Smadar Naoz , Laura Vican , Will M. Farr

Magnetic stellar activity of exoplanet hosts can lead to the production of large amounts of high-energy emission, which irradiates extrasolar planets, located in the immediate vicinity of such stars. This radiation is absorbed in the…

Solar and Stellar Astrophysics · Physics 2018-04-04 Lalitha Sairam , J. H. M. M. Schmitt , Spandan Dash

The Robo-AO \textit{Kepler} Planetary Candidate Survey is observing every \textit{Kepler} planet candidate host star with laser adaptive optics imaging to search for blended nearby stars, which may be physically associated companions and/or…

Earth and Planetary Astrophysics · Physics 2017-01-18 Carl Ziegler , Nicholas M. Law , Tim Morton , Christoph Baranec , Reed Riddle , Dani Atkinson , Anna Baker , Sarah Roberts , David R. Ciardi

While detecting low mass exoplanets at tens of au is beyond current instrumentation, debris discs provide a unique opportunity to study the outer regions of planetary systems. Here we report new ALMA observations of the 80-200 Myr old Solar…

Earth and Planetary Astrophysics · Physics 2018-07-18 S. Marino , J. Carpenter , M. C. Wyatt , M. Booth , S. Casassus , V. Faramaz , V. Guzman , A. M. Hughes , A. Isella G. M. Kennedy , L. Matrà , L. Ricci , S. Corder

We present the results of an independent search of all ~200,000 stars observed over the four year Kepler mission (Q1-Q17) for multiplanet systems, using a three-transit minimum detection criteria to search orbital periods up to hundreds of…

Earth and Planetary Astrophysics · Physics 2020-03-11 Michelle Kunimoto , Jaymie M. Matthews , Henry Ngo

Infrared spectra from the Spitzer Space Telescope (SSC) of many debris disks are well fit with a single black body temperature which suggest clearings within the disk. We assume that inside the clearing orbital instability due to planets…

Astrophysics · Physics 2007-06-13 Peter Faber , Alice C. Quillen

Spatially resolved scattered-light images of circumstellar (CS) debris in exoplanetary systems constrain the physical properties and orbits of the dust particles in these systems. They also inform on co-orbiting (but unseen) planets,…

We know little about the outermost exoplanets in planetary systems, because our detection methods are insensitive to moderate-mass planets on wide orbits. However, debris discs can probe the outer-planet population, because dynamical…

We report a Spitzer/IRAC search for infrared excesses around white dwarfs, including 14 newly-observed targets and 16 unpublished archived stars. We find a substantial infrared excess around two warm white dwarfs --- J220934.84+122336.5 and…

Earth and Planetary Astrophysics · Physics 2015-05-30 S. Xu , M. Jura

We present results from high-resolution, optical to near-IR imaging of host stars of Kepler Objects of Interest (KOIs), identified in the original Kepler field. Part of the data were obtained under the Kepler imaging follow-up observation…

We carried out a 12CO(3-2) survey of 52 southern stars with a wide range of IR excesses (LIR/L*) using the single dish telescopes APEX and ASTE. The main aims were (1) to characterize the evolution of molecular gas in circumstellar disks…

The Kepler Mission is exploring the diversity of planets and planetary systems. Its legacy will be a catalog of discoveries sufficient for computing planet occurrence rates as a function of size, orbital period, star-type, and insolation…

Earth and Planetary Astrophysics · Physics 2014-09-08 Natalie M. Batalha

The interstellar thick disks of galaxies contain not only gas, but significant quantities of dust. Most of our knowledge of extraplanar dust in disk galaxies comes from direct broadband optical imaging of these systems, wherein the dust is…

Astrophysics · Physics 2007-05-23 J. Christopher Howk

Dusty debris disks around pre- and main-sequence stars are potential signposts for the existence of planetesimals and exoplanets. Giant planet formation is therefore expected to play a key role in the evolution of the disk. This is…

We simulate a Kepler-like observation of a theoretical exoplanet population and we show that the observed orbital period distribution of the Kepler giant planet candidates is best matched by an average stellar specific dissipation function…

Earth and Planetary Astrophysics · Physics 2015-05-20 Kevin C. Schlaufman , D. N. C. Lin , S. Ida

We present the results of searching the Kepler Q2 public dataset for the secondary eclipses of 76 hot Jupiter planet candidates from the list of 1,235 candidates published by Borucki et al. (2011). This search has been performed by modeling…

Solar and Stellar Astrophysics · Physics 2015-06-03 Jeffrey L. Coughlin , Mercedes Lopez-Morales

We present here the analysis of 30 gaseous extrasolar planets, with temperatures between 600 and 2400 K and radii between 0.35 and 1.9 $R_\mathrm{Jup}$. The quality of the HST/WFC3 spatially scanned data combined with our specialized…

Earth and Planetary Astrophysics · Physics 2018-03-20 A. Tsiaras , I. P. Waldmann , T. Zingales , M. Rocchetto , G. Morello , M. Damiano , K. Karpouzas , G. Tinetti , L. K. McKemmish , J. Tennyson , S. N. Yurchenko