Publications (10)
Far-infrared spectra of hydrous silicates at low temperatures - Providing laboratory data for Herschel and ALMA
H. Mutschke, S. Zeidler, Th. Posch +3
Hydrous silicates occur in various cosmic environments, and are among the minerals with the most pronounced bands in the far infrared (FIR) spectral region. Given that Herschel and…
X Her and TX Psc: Two cases of ISM interaction with stellar winds observed by Herschel
A. Jorissen, A. Mayer, S. Van Eck +14
The asymptotic giant branch (AGB) stars X Her and TX Psc have been imaged at 70 and 160 microns with the PACS instrument onboard the Herschel satellite, as part of the large MESS (…
A far-infrared survey of bow shocks and detached shells around AGB stars and red supergiants
N. L. J. Cox, F. Kerschbaum, A. -J. van Marle +16
Far-infrared Herschel/PACS images at 70 and 160 micron of a sample of 78 Galactic evolved stars are used to study the (dust) emission structures, originating from stellar wind-ISM…
Herschel's view into Mira's head
A. Mayer, A. Jorissen, F. Kerschbaum +9
Herschel's PACS instrument observed the environment of the binary system Mira Ceti in the 70 and 160 micron bands. These images reveal bright structures shaped as five broken arcs…
The wind of W Hya as seen by Herschel - I. The CO envelope
T. Khouri, A. de Koter, L. Decin +25
Asymptotic giant branch (AGB) stars lose their envelopes by means of a stellar wind whose driving mechanism is not understood well. Characterizing the composition and thermal and d…
Carbonates in space - The challenge of low temperature data
Th. Posch, A. Baier, H. Mutschke +1
Carbonates have repeatedly been discussed as possible carriers of stardust emission bands. However, the band assignments proposed so far were mainly based on room temperature powde…
Large-scale environments of binary AGB stars probed by Herschel - I. Morphology statistics and case studies of R Aquarii and W Aquilae
A. Mayer, A. Jorissen, F. Kerschbaum +14
The Mass loss of Evolved StarS (MESS) sample offers a selection of 78 Asymptotic Giant Branch (AGB) stars and Red Supergiants (RSGs) observed with the PACS photometer on-board Hers…
Dusty shells surrounding the carbon variables S Scuti and RT Capricorni
M. Mecina, F. Kerschbaum, M. A. T. Groenewegen +8
For the Mass-loss of Evolved StarS (MESS) programme, the unprecedented spatial resolution of the PACS photometer on board the Herschel space observatory was employed to map the dus…
Herschel/PACS observations of the 69 band of crystalline olivine around evolved stars
J. A. D. L. Blommaert, B. L. de Vries, L. B. F. M. Waters +15
We present 48 Herschel/PACS spectra of evolved stars in the wavelength range of 67-72 m. This wavelength range covers the 69 m band of crystalline olivine ($\text{Mg}_{2-2x…
Morphological effects on IR band profiles: Experimental spectroscopic analysis with application to observed spectra of oxygen-rich AGB stars
A. Tamanai, H. Mutschke, J. Blum +3
To trace the source of the unique 13, 19.5, and 28 m emission features in the spectra of oxygen-rich circumstellar shells around AGB stars, we have compared dust extinction spe…