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The circumstellar environment around the extreme Galactic red supergiant NML Cygni: Dense, dusty, and asymmetric
E. De Beck, H. Andrews, G. Quintana-Lacaci +1
Supernova observations imply the presence of a dense and asymmetric circumstellar environment around SN Type II progenitors, whereas the mass loss from these progenitors, namely, r…
Dust in AGB wind-ISM interaction regions
M. Maercker, T. Khouri, M. Mecina +1
We aim to constrain the dust mass and grain sizes in the interaction regions between the stellar winds and the ISM around asymptotic giant branch stars. By describing the dust in t…
Herschel/HIFI observation of highly excited rotational lines of HNC toward IRC +10 216
F. Daniel, M. Agúndez, J. Cernicharo +6
We report the detection in emission of various highly excited rotational transitions of HNC (J = 6-5 through J =12-11) toward the carbon-star envelope IRC +10 216 using the HIFI in…
A high resolution line survey of IRC+10216 with Herschel. First results: Detection of warm silicon dicarbide SiC2
J. Cernicharo, L. B. F. M. Waters, L. Decin +24
We present the first results of a high-spectral-resolution survey of the carbon-rich evolved star IRC+10216 that was carried out with the HIFI spectrometer onboard Herschel. This s…