Results 81 to 90 of about 7,087 (197)
Search for cold debris disks around M-dwarfs
, 2006 Debris disks are believed to be related to planetesimals left over around stars after planet formation has ceased. The frequency of debris disks around M-dwarfs which account for 70% of the stars in the Galaxy is unknown while constrains have already ...
Wyatt, Mark C. +9 more
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Size Limits on Tidal Debris around White Dwarfs: The Kilometer-size Barrier
The Astrophysical Journal LettersCompact disks of planetary debris orbiting white dwarfs provide a crucial window into our understanding of evolved planetary systems. The formation of these disks has been widely modeled with tidal fragmentation of minor planets that are rubble piles ...
Jordan K. Steckloff +2 more
doaj +1 more source
The Astrophysical Journal LettersThe signal from a transiting planet can be diluted by astrophysical contamination. In the case of circumstellar debris disks, this contamination could start in the mid-infrared and vary as a function of wavelength, which would then change the observed ...
Laura Flagg +23 more
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Twisted debris: how differential secular perturbations shape debris disks
, 2019 Context. Resolved images suggest that asymmetric structures are a common feature of cold debris disks. While planets close to these disks are rarely detected, their hidden presence and gravitational perturbations provide plausible explanations for some ...
T. Löhne, J. A. Sende
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High Resolution ALMA Data of the Fomalhaut Debris Disk Confirms Apsidal Width Variation
The Astrophysical Journal LettersWe present long-baseline observations of the Fomalhaut outer debris disk at 223 GHz (1.3 mm) from Atacama Large Millimeter/submillimeter Array (ALMA) Cycle 5, which we use along with archival short-baseline observations to produce a 0 $\mathop{.}\limits{^
Jay S. Chittidi +13 more
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A JWST MIRI MRS View of the η Tel Debris Disk and Its Brown Dwarf Companion
The Astrophysical JournalWe report JWST Mid-Infrared Instrument (MIRI) Medium Resolution Spectrograph (MRS) observations of the β Pic moving-group member, η Tel A, along with its brown dwarf binary companion, η Tel B.
Yiwei Chai +14 more
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Drag-o-llision Models of Extrasolar Planets in Debris Disks
, 2009 An extrasolar planet sculpts the famous debris disk around Fomalhaut; probably many other debris disks contain planets that we could locate if only we could better recognize their signatures in the dust that surrounds them.
Kuchner, Marc
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Deep Search for a Scattered Light Dust Halo Around Vega with the Hubble Space Telescope
The Astronomical JournalWe present a provisory scattered-light detection of the Vega debris disk using deep Hubble Space Telescope (HST) coronagraphy (PID 16666). At only 7.7 pc, Vega is immensely important in debris disk studies both for its prominence and also because it ...
Schuyler G. Wolff +8 more
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Probing the Era of Giant Collisions: Millimeter Observations of the HD 166191 System
The Astrophysical JournalWe present nonsimultaneous Atacama Large Millimeter/submillimeter Array (ALMA) Band 7 and Submillimeter Array (SMA) observations of the HD 166191 disk, which was recently thought to have a collision in its terrestrial planet zone.
Kadin Worthen +7 more
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Millimeter Studies of Nearby Debris Disks
, 2019 At least 20% of nearby main sequence stars are known to be surrounded by disks of dusty material resulting from the collisional erosion of planetesimals, similar to asteroids and comets in our own Solar System.
MacGregor, Meredith Ann
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