Results 21 to 30 of about 221,766 (238)
DIAGNOSING CIRCUMSTELLAR DEBRIS DISKS [PDF]
The Astrophysical Journal, 2010 Accepted for publication in the Astrophysical ...
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BINARIES AMONG DEBRIS DISK STARS [PDF]
The Astrophysical Journal, 2012 We have gathered a sample of 112 main-sequence stars with known debris disks. We collected published information and performed adaptive optics observations at Lick Observatory to determine if these debris disks are associated with binary or multiple stars.
Rodríguez, David R., Zuckerman, B.
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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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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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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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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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ON THE RELATIONSHIP BETWEEN DEBRIS DISKS AND PLANETS [PDF]
The Astrophysical Journal, 2009 Dust in debris disks is generated by collisions among planetesimals. The existence of these planetesimals is a consequence of the planet formation process, but the relationship between debris disks and planets has not been clearly established. Here we analyze Spitzer/MIPS 24 and 70 micrometer data for 150 planet-bearing stars, and compare the incidence
Kóspál, Ãgnes +3 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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