SIMBAD references

2002A&A...390.1075G - Astronomy and Astrophysics, volume 390, 1075-1087 (2002/8-2)

Detection of solid ammonia, methanol, and methane with ISOPHOT.

GUERTLER J., KLAAS U., HENNING T., ABRAHAM P., LEMKE D., SCHREYER K. and LEHMANN K.

Abstract (from CDS):

We report on a search for the NH3 inversion band at 9.0µm, the CH4 band at 7.7µm, and the CH3OH band at 9.7µm in the spectra of 10 heavily obscured stellar objects taken with the spectrophotometer ISOPHOT-S aboard the Infrared Space Observatory (ISO). Four of them show indications of the NH3 inversion band at 9.0µm superimposed on the always strong silicate band. The results show that ammonia ice may be abundant in some cool and dense molecular circumstellar regions. The 9.7µm band of solid CH3OH was detected in 5 of the sources, and also the 7.7µm band of solid CH4 was found in 5 sources. The PHT-S detections were cross-checked against ISO-SWS spectra from archive data. Considering the different beam sizes (24x24"2 versus 14x20"2), there is good agreement.

Abstract Copyright:

Journal keyword(s): stars: circumstellar matter - ISM: dust, extinction - ISM: molecules - ISM: lines and bands - infrared: ISM

Simbad objects: 14

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2021.06.16-00:24:54

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