Results 31 to 40 of about 7,087 (197)
The Apparent Absence of Forward Scattering in the HD 53143 Debris Disk
The Astrophysical Journal, 2023 HD 53143 is a mature Sun-like star and host to a broad disk of dusty debris, including a cold outer ring of planetesimals near 90 au. Unlike most other inclined debris disks imaged at visible wavelengths, the cold disk around HD 53143 appears as ...
Christopher C. Stark +7 more
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A PRIMER ON UNIFYING DEBRIS DISK MORPHOLOGIES [PDF]
The Astrophysical Journal, 2016 ABSTRACT A “minimum model” for debris disks consists of a narrow ring of parent bodies, secularly forced by a single planet on a possibly eccentric orbit, colliding to produce dust grains that are perturbed by stellar radiation pressure.
Eve J. Lee, Eugene Chiang
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Long-term Evolution of Warps in Debris Disks—Application to the Gyr-old System HD 202628
The Astrophysical Journal, 2023 We present the results of N -body simulations meant to reproduce the long-term effects of mutually inclined exoplanets on debris disks, using the HD 202628 system as a proxy.
Madison T. Brady +3 more
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THE FREQUENCY OF DEBRIS DISKS AT WHITE DWARFS [PDF]
The Astrophysical Journal, 2012 We present near- and mid-infrared photometry and spectroscopy from PAIRITEL, IRTF, and Spitzer of a metallicity-unbiased sample of 117 cool, hydrogen-atmosphere white dwarfs from the Palomar-Green survey and find five with excess radiation in the infrared, translating to a 4.3+2.7-1.2% frequency of debris disks.
Barber, Sara D. +6 more
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Signposts of Multiple Planets in Debris Disks [PDF]
Proceedings of the International Astronomical Union, 2013 AbstractWe review the nearby debris disk structures revealed by multi-wavelength images from Spitzer and Herschel, and complemented with detailed spectral energy distribution modeling. Similar to the definition of habitable zones around stars, debris disk structures should be identified and characterized in terms of dust temperatures rather than ...
Su, Kate Y. L., Rieke, George H.
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Debris Disk Evolution around A Stars [PDF]
The Astrophysical Journal, 2006 17 pages, accepted for publication in ...
Su, K. Y. L. +10 more
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Numerical Modeling of Dusty Debris Disks
The Astrophysical Journal, 2005 Infrared and submillimeter observations of nearby Vega-like stars have revealed a number of clumpy, asymmetric dust debris disks. Previous studies using semianalytical and numerical methods have suggested planetary companions of various mass as the likely cause of most examples of disk asymmetry.
Deller, Adam, Maddison, Sarah
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Planetesimals in Debris Disks [PDF]
, 2017 Planetesimals form in gas-rich protoplanetary disks around young stars. However, protoplanetary disks fade in about 10 Myr. The planetesimals (and also many of the planets) left behind are too dim to study directly. Fortunately, collisions between planetesimals produce dusty debris disks.
Youdin, Andrew N., Rieke, George H.
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HERSCHEL OBSERVATIONS OF DUSTY DEBRIS DISKS [PDF]
The Astrophysical Journal, 2016 ABSTRACT We present results from two Herschel observing programs using the Photodetector Array Camera and Spectrometer. During three separate campaigns, we obtained Herschel data for 24 stars at 70, 100, and 160 μm. We chose stars that were already known or suspected to have circumstellar dust based on excess infrared (IR) emission ...
Laura Vican +6 more
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The debris disk – terrestrial planet connection [PDF]
Proceedings of the International Astronomical Union, 2010 AbstractThe eccentric orbits of the known extrasolar giant planets provide evidence that most planet-forming environments undergo violent dynamical instabilities. Here, we numerically simulate the impact of giant planet instabilities on planetary systems as a whole.
Raymond, Sean N. +7 more
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