489 citations · 2.3k across the 41 of their papers we have counts for
23 papers · 1 filter
Spatially Resolved 3 micron Spectroscopy of Elias 1: Origin of Diamonds in Protoplanetary Disks
M. Goto, Th. Henning, A. Kouchi +8
We present spatially resolved 3 um spectra of Elias 1 obtained with an adaptive optics system. The central part of the disk is almost devoid of PAH emission at 3.3 um; it shows up…
Dust Extinction in High-z Galaxies with GRB Afterglow Spectroscopy - The 2175Å Feature at z=2.45
Á. Elíasdóttir, J. P. U. Fynbo, J. Hjorth +8
We report the clear detection of the 2175A dust absorption feature in the optical afterglow spectrum of the gamma-ray burst (GRB) GRB070802 at a redshift of z=2.45. This is the hig…
Dust from AGB stars
Anja C. Andersen
Dust is formed in the expanding atmosphere during late stages of stellar evolution. Dust influences the dynamics and thermodynamics of the stellar atmosphere by its opacity. The du…
The far-UV break in quasar energy distributions: dust?
L. Binette, Y. Krongold, S. Haro-Corzo +1
A prominent continuum steepening is observed in quasar energy distributions near 1100A. We review possible interpretations for the origin of the so-called far-UV break, putting emp…
Infrared extinction by homogeneous particle aggregates of SiC, FeO and SiO2: comparison of different theoretical approaches
Anja C. Andersen, Harald Mutschke, Thomas Posch +2
Particle shape and aggregation have a strong influence on the spectral profiles of infrared phonon bands of solid dust grains. Calculating these effects is difficult due to the oft…
The Origin and Evolution of the Asteroid Main Belt
Philip R. Bidstrup, Henning Haack, Anja C. Andersen +2
Using a fully autonomous spacecraft - Bering - we propose to detect and study sub-km asteroids from an orbit within the asteroid Main Belt. The main purpose of the proposed Bering…