Results 81 to 90 of about 5,625,011 (180)
Exploring Polarized Millimeter Emission from Protoplanetary Disks with Irregular Dust Grains
The Astrophysical JournalPolarization at millimeter wavelengths provides a powerful diagnostic of dust grain properties in protoplanetary disks. Standard models based on solid spherical grains often struggle to reproduce the observed polarization fractions and morphologies in ...
Jesús Miguel Jáquez-Domínguez +6 more
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Leaky Dust Traps in Planet-embedded Protoplanetary Disks
The Astrophysical JournalFrom the survival of dust disks for a few Myr to the establishment of chemical dichotomy, dust traps are expected to play a pivotal role in sculpting protoplanetary disks and the early planet formation process.
Pinghui Huang +4 more
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The Astrophysical JournalJWST has enabled the detection of the ultraviolet (UV) continuum of galaxies at z > 10, revealing extremely blue, potentially dust-free galaxies. However, interpreting UV spectra is complicated by the well-known degeneracy between stellar ages, dust ...
Desika Narayanan +10 more
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Dust emission in powder handling: Free falling particle plume characterisation [PDF]
, 2009 Dust generation during solids handling, principally from the free falling of bulk materials and their impact on stockpiles, can be a health threat for operators and a cause of dust explosions.
Ansart, Renaud +5 more
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Shoulder of Dust Rings Formed by Planet–Disk Interactions
The Astrophysical JournalRecent analyses of millimeter-wavelength protoplanetary disk observations have revealed several emission excesses on the previously identified dust rings, referred to as dust shoulders.
Jiaqing Bi, Min-Kai Lin
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The formation of molecular hydrogen in the interstellar medium [PDF]
, 2010 H2 is the most abundant molecule in the interstellar medium and forms on the surface of interstellar dust grains. Laboratory studies have been conducted of HD formation on a dust grain analogue, which is a highly-oriented pyrolytic graphite surface ...
Islam, F.
core
Dust emission by powder handling: Influence of the hopper outlet on the dust plume [PDF]
, 2011 Dust generation in solids handling involving free fall of bulk materials and impacts on a stockpile can cause many problems in industry and be a great danger for operators health. This paper describes an experimental set up to characterize the dust plume
Letourneau, Jean-Jacques +8 more
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Ortho–para-H 2 conversion processes in astrophysical media
, 2014 International audienceWe report in this review recent fully quantum time-independent calculations of cross sections and rate constants for the gas phase ortho-to-para conversion of H2 by H and H+.
Lique, François +2 more
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Distances to Recent Near-Earth Supernovae from Geological and Lunar 60Fe
The Astrophysical JournalNear-Earth supernova blasts which engulf the solar system have left traces of their ejecta in the geological and lunar records. There is now a wealth of data on live radioactive ^60 Fe pointing to a supernova at 3 Myr ago, as well as the recent discovery
Adrienne F. Ertel, Brian D. Fields
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Inside-out Planet Formation. VIII. Onset of Planet Formation and the Transition Disk Phase
The Astrophysical JournalInside-out planet formation (IOPF) is a theory of in situ formation via pebble accretion of close-in Earth to super-Earth mass planets at the pressure maximum associated with the dead zone inner boundary (DZIB), whose location is set initially by thermal
Xiao Hu, Jonathan C. Tan
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