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Related papers: Evidence for a circumplanetary disk around protopl…

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We describe the dynamical, photometric, and spectroscopic data available for stars targeted by Spitzer and Herschel to search for cold circumstellar dust emission from debris disks, a collection that we name the Cold Debris Disk Surveys…

Solar and Stellar Astrophysics · Physics 2026-03-13 Scott J. Kenyon , Benjamin C. Bromley , Joan R. Najita

We present new ground-based, multi-colour, broad-band photometric measurements of the physical parameters, transmission and emission spectra of the transiting extrasolar planet WASP-19b. The measurements are based on observations of 8…

Using radiation hydrodynamics simulations, we explore the evolution of circumplanetary disks around wide-orbit proto-gas giants. At large distances from the star (~100 AU), gravitational instability followed by disk fragmentation can form…

Earth and Planetary Astrophysics · Physics 2015-06-15 Megan Shabram , Aaron Boley

We present Herschel far-infrared and submillimeter maps of the debris disk associated with the HR 8799 planetary system. We resolve the outer disk emission at 70, 100, 160 and 250 um and detect the disk at 350 and 500 um. A smooth model…

We present arcsecond-scale Submillimeter Array observations of the CO(3-2) line emission from the disks around the young stars HD 163296 and TW Hya at a spectral resolution of 44 m/s. These observations probe below the ~100 m/s turbulent…

Solar and Stellar Astrophysics · Physics 2015-05-20 A. Meredith Hughes , David J. Wilner , Sean M. Andrews , Chunhua Qi , Michiel R. Hogerheijde

Aims. We analyse unpublished Spitzer observations of the thermal phase-curve of WASP-121 b, a benchmark ultra-hot Jupiter. Methods. We adopted the wavelet pixel-independent component analysis technique to remove challenging instrumental…

Earth and Planetary Astrophysics · Physics 2023-08-16 Giuseppe Morello , Quentin Changeat , Achrène Dyrek , Pierre-Olivier Lagage , Jonathan C. Tan

Context: When the planet transits its host star, it is possible to measure the planetary radius and (with radial velocity data) the planet mass. For the study of planetary atmospheres, it is essential to obtain transit and occultation…

Earth and Planetary Astrophysics · Physics 2013-03-28 M. Lendl , M. Gillon , D. Queloz , R. Alonso , A. Fumel , E. Jehin , D. Naef

Recent discoveries of young exoplanets within their natal disks offer exciting opportunities to study ongoing planet formation. In particular, a planet's mass accretion rate can be constrained by observing the accretion-induced excess…

Accurate temperature calculations for circumstellar disks are particularly important for their chemical evolution. Their temperature distribution is determined by the optical properties of the dust grains, which, among other parameters,…

Solar and Stellar Astrophysics · Physics 2017-07-26 S. Heese , S. Wolf , A. Dutrey , S. Guilloteau

Post-AGB binaries are surrounded by circumbinary disks of gas and dust that are similar to protoplanetary disks found around young stars. We aim to understand the structure of these disks and identify the physical phenomena at play in their…

Solar and Stellar Astrophysics · Physics 2019-11-06 J. Kluska , H. Van Winckel , M. Hillen , J. -P. Berger , D. Kamath , J. -B. Le Bouquin , M. Min

Direct imaging observations are biased towards wide-separation, massive companions that have degenerate formation histories. Although the majority of exoplanets are expected to form via core accretion, most directly imaged exoplanets have…

We present high-resolution spectra and spectroastrometric (SA) measurements of fundamental rovibrational CO emission from nine nearby ($\lesssim$300 pc) protoplanetary disks where large inner dust cavities have been observed. The emission…

We present the results of hydrodynamical simulations of low mass protoplanets embedded in circumbinary accretion disks. The aim is to examine the migration and long term orbital evolution of the protoplanets, in order to establish the…

Astrophysics · Physics 2009-11-13 Arnaud Pierens , Richard P. Nelson

We report secondary eclipse photometry of the hot Jupiter XO-3b in the 4.5~$\mu$m band taken with the Infrared Array Camera (IRAC) on the Spitzer Space Telescope. We measure individual eclipse depths and center of eclipse times for a total…

As host to two accreting planets, PDS 70 provides a unique opportunity to probe the chemical complexity of atmosphere-forming material. We present ALMA Band 6 observations of the PDS~70 disk and report the first chemical inventory of the…

Earth and Planetary Astrophysics · Physics 2021-08-18 Stefano Facchini , Richard Teague , Jaehan Bae , Myriam Benisty , Miriam Keppler , Andrea Isella

We report 78 secondary eclipse depths for a sample of 36 transiting hot Jupiters observed at 3.6- and 4.5 microns using the Spitzer Space Telescope. Our eclipse results for 27 of these planets are new, and include highly irradiated worlds…

Certain lines in spectra of the Galactic microquasar SS 433, in particular the brilliant H alpha line, have been interpreted as emission from a circumbinary disk. In this interpretation the orbital speed of the glowing material is in excess…

Astrophysics of Galaxies · Physics 2015-05-20 M. G. Bowler

Forming giant planets are accompanied by circumplanetary disks, as indicated by considerations of angular momentum conservation, observations of candidate protoplanets, and the satellite systems of planets in our Solar System. This paper…

Earth and Planetary Astrophysics · Physics 2025-05-01 Fred C. Adams , Konstantin Batygin

The search for young planets had its first breakthrough with the detection of the accreting planet PDS70b. In this study, we aim to broaden our understanding towards the formation of multi-planet systems such as HR8799 or the Solar System.…

Understanding the evolution and dissipation of protoplanetary disks are crucial in star and planet formation studies. We report the protoplanetary disk population in the nearby young $\sigma$ Orionis cluster (d$\sim$408 pc; age$\sim$1.8…

Solar and Stellar Astrophysics · Physics 2023-05-30 Belinda Damian , Jessy Jose , Beth Biller , KT Paul