41 citations · 79 across the 5 of their papers we have counts for
5 papers
Large Interstellar Polarisation Survey. III. Observational constraints on the structure of grains
Ralf Siebenmorgen, Stefano Bagnulo, Lapo Fanciullo +2
Dust in the diffuse interstellar medium remains incompletely understood with regard to the structure, composition, size distribution, and alignment properties of the grains. Joint…
Luminosity distance and extinction by submicrometer-sized grains
Ralf Siebenmorgen, Frank Heymann, Rolf Chini
The distance to the stars is a fundamental parameter, which is determined via two primary methods - parallax and luminosity. While the parallax is a direct trigonometric method, th…
Large Interstellar Polarisation Survey II. UV/optical study of cloud-to-cloud variations of dust in the diffuse ISM
R. Siebenmorgen, N. V. Voshchinnikov, S. Bagnulo +3
It is well known that the dust properties of the diffuse interstellar medium exhibit variations towards different sight-lines on a large scale. We have investigated the variability…
Large Interstellar Polarisation Survey. LIPS I: FORS2 spectropolarimetry in the Southern Hemisphere
S. Bagnulo, N. J. L. Cox, A. Cikota +9
Polarimetric studies of light transmitted through interstellar clouds may give constraints on the properties of the interstellar dust grains. Traditionally, broadband linear polari…
BD+30 3639: The Infrared Spectrum During Post-AGB Stellar Evolution
R. Siebenmorgen, A. A. Zijlstra, E. Kruegel
We present a radiative-transfer calculation which reproduces the infrared spectrum of the planetary nebula BD~+303639. We calculate the transfer process through absorptio…