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In and out of glacial extremes by way of dust climate feedbacks
(National Academy of Sciences, 2018)
Mineral dust aerosols cool Earth directly by scattering incoming solar radiation and indirectly by affecting clouds and biogeochemical cycles. Recent Earth history has featured quasi-100,000-y, glacial-interglacial climate ...
Dust fluxes and iron fertilization in Holocene and Last Glacial Maximum climates
(Amer Geophysical Union, 2015)
Mineral dust aerosols play a major role in present and past climates. To date, we rely on climate
models for estimates of dust fluxes to calculate the impact of airborne micronutrients on
biogeochemical cycles. Here we ...
ALMA observations of anisotropic dust mass loss in the inner circumstellar environment of the red supergiant VY Canis Majoris
(EDP Sciences, 2015)
The processes leading to dust formation and the subsequent role it plays in driving mass loss in cool evolved stars is an area of intense study. Here we present high resolution ALMA Science Verification data of the continuum ...
Dust and gas in the disk of HL TAURI: surface density, dust settling, and dust-to-gas ratio
(IOP Publishing, 2016)
The recent ALMA observations of the disk surrounding HL Tau reveal a very complex dust spatial distribution. We present a radiative transfer model accounting for the observed gaps and bright rings as well as radial changes ...
A multiwavelength study of young massive star forming regions. II. The dust environment
(2007)
We present observations of 1.2 mm dust continuum emission made with the Swedish-ESO Submillimeter Telescope toward 18 luminous IRAS point sources, all with colors typical of compact H II regions and associated with CS(2 ...
Benchmarking the calculation of stochastic heating and emissivity of dust grains in the context of radiative transfer simulations
(EDP Sciences, 2015)
Context. Thermal emission by stochastically heated dust grains (SHGs) plays an important role in the radiative transfer (RT) problem
for a dusty medium. It is therefore essential to verify that RT codes properly calculate ...
Paracas dust storms: sources, trajectories and associated meteorological conditions
(Elsevier, 2017)
Dust storms that develop along the Pisco-Ica desert in Southern Peru, locally known as "Paracas" winds have ecological, health and economic repercussions. Here we identify dust sources through MODIS (Moderate Resolution ...
Polarization in Monte Carlo radiative transfer and dust scattering polarization signatures of spiral galaxies
(EDP Sciences, 2017-05)
Polarization is an important tool to further the understanding of interstellar dust and the sources behind it. In this paper we describe
our implementation of polarization that is due to scattering of light by spherical ...
Resolved observations at 31 GHz of spinning dust emissivity variations in rho Oph
(Oxford University Press, 2020)
The rho Oph molecular cloud is one of the best examples of spinning dust emission, first detected by the cosmic background imager (CBI). Here, we present 4.5 arcmin observations with CBI 2 that confirm 31 GHz emission from ...
Geologic and anthropogenic sources of contamination in settled dust of a historic mining port city in northern Chile: health risk implications
(Peerj INC, 2018)
Chile is the leading producer of copper worldwide and its richest mineral deposits are found in the Antofagasta Region of northern Chile. Mining activities have significantly increased income and employment in the region; ...