Results 11 to 20 of about 1,028,846 (258)
Abstract We have analysed Herschel observations of M31, using the ppmap procedure. The resolution of ppmap images is sufficient ($\sim 31\, {\rm pc}$ on M31) that we can analyse far-IR dust emission on the scale of giant molecular clouds.
A P Whitworth+8 more
openaire +6 more sources
Observations of Saharan dust layer electrification [PDF]
Electrification of atmospheric dust influences the coagulation, wet removal and fall speeds of dust particles. Alignment of dust particles can also occur in fair weather atmospheric electrical conditions if the particles are charged.
Harrison, R. G.+2 more
core +1 more source
An exploration of dust grain growth within WCd systems using an advected scalar dust model [PDF]
Dust production is one of the more curious phenomena observed in massive binary systems with interacting winds. The high temperatures, UV photon flux and violent shocks should destroy any dust grains that condense. However, in some extreme cases dust production yields of approximately 30% of the total mass loss rate of the stellar winds have been ...
arxiv +1 more source
Dust Masses, PAH Abundances, and Starlight Intensities in the SINGS Galaxy Sample [PDF]
Physical dust models are presented for 65 galaxies in SINGS that are strongly detected in the four IRAC bands and three MIPS bands. For each galaxy we estimate (1) the total dust mass, (2) the fraction of the dust mass contributed by PAHs, and (3) the ...
A. Li+40 more
core +2 more sources
Constraining dust formation in high-redshift young galaxies [PDF]
Core-collapse supernovae (SNe) are believed to be the first significant source of dust in the Universe. Such SNe are expected to be the main dust producers in young high-redshift Lyman $\alpha$ emitters (LAEs) given their young ages, providing an ...
Dayal, Pratika+3 more
core +1 more source
The physics of wind-blown sand and dust [PDF]
The transport of sand and dust by wind is a potent erosional force, creates sand dunes and ripples, and loads the atmosphere with suspended dust aerosols.
Karam, Diana Bou+3 more
core +2 more sources
High throughput genomic sequencing of bioaerosols in broiler chicken production facilities [PDF]
Chronic inhalation exposure to agricultural dust promotes the development of chronic respiratory diseases among poultry workers. Poultry dust is composed of dander, chicken feed, litter bedding and microbes.
Bair, Thomas+6 more
core +2 more sources
The Slow Flow Model of Dust Efflux in Local Star-Forming Galaxies [PDF]
We develop a dust efflux model of radiation pressure acting on dust grains which successfully reproduces the relation between stellar mass, dust opacity and star formation rate observed in local star-forming galaxies. The dust content of local star-forming galaxies is set by the competition between the physical processes of dust production and dust ...
arxiv +1 more source
The Dawn of Dust Astronomy [PDF]
We review the development of dust science from the first ground-based astronomical observations of dust in space to compositional analysis of individual dust particles and their source objects. A multitude of observational techniques is available for the scientific study of space dust: from meteors and interplanetary dust particles collected in the ...
arxiv +1 more source