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Mid-infrared images of β Pictoris and the possible role of planetesimal collisions in the central disk
TLDR
Thermal infrared images of the central disk imply that the brightness asymmetry results from the presence of a bright clump composed of particles that may differ in size from dust elsewhere in the disk, which is suggested to result from the collisional grinding of resonantly trapped planetesimals or the cataclysmic break-up of a planetesimal.
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Orbital Evolution of Interplanetary Dust
The two most important dynamical features of the zodiacal cloud are: (i) t he dust bands associated with t he major Hirayama asteroid families, and (ii) the circumsolar ring of dust particles in…
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The common origin of family and non-family asteroids
All asteroids are currently classified as either family, originating from the disruption of known bodies1, or non-family. An outstanding question is the origin of these non-family asteroids. Were…
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Mid-Infrared Resolution of a 3 AU Radius Debris Disk around ζ Leporis
We present subarcsecond-resolution mid-infrared images of the debris disk surrounding the 230 Myr old A star ζ Lep. Our data obtained with T-ReCS at Gemini South show the source to be unresolved at…
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Crimes Committed by U.S. Soldiers in Europe, 1945–1946
Accounts from victims and observers, including new research in the U.S. National Archives and the Bavarian National Archives, suggest that American soldiers committed crimes against…
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SIGNATURES OF RECENT ASTEROID DISRUPTIONS IN THE FORMATION AND EVOLUTION OF SOLAR SYSTEM DUST BANDS
We have performed detailed dynamical modeling of the structure of a faint dust band observed in coadded InfraRed Astronomical Satellite data at an ecliptic latitude of 17° that convincingly…
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Asteroidal Dust
There is good evidence that the high-speed, porous, anhydrous chondritic interplanetary dust particles (IDPs) collected in Earth’s stratosphere originated from short-period comets. However, by…
Sources of the Solar System Dust Bands and Interplanetary Dust Particles
Recent Catastrophic Disruptions of Main-Belt Asteroids as a Source of the Solar System Dust Bands and Interplanetary Dust Particles
Honor and Humiliation in Apuleius’ Apologia
Apuleius’ Apologia has consistently drawn scholarly attention as an example of soaring rhetoric from the Second Sophistic and for being the only remaining account of a trial for illegal magic from…
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