Detection of anhydrous hydrochloric acid, HCl, in IRC +10216 with the HerschelSPIRE and PACS spectrometers
| Autor: | J. Cernicharo, L. Decin, M. J. Barlow, M. Agúndez, P. Royer, B. Vandenbussche, R. Wesson, E. T. Polehampton, E. De Beck, J. A. D. L. Blommaert, F. Daniel, W. De Meester, K. M. Exter, H. Feuchtgruber, W. K. Gear, J. R. Goicoechea, H. L. Gomez, M. A. T. Groenewegen, P. C. Hargrave, R. Huygen, P. Imhof, R. J. Ivison, C. Jean, F. Kerschbaum, S. J. Leeks, T. L. Lim, M. Matsuura, G. Olofsson, T. Posch, S. Regibo, G. Savini, B. Sibthorpe, B. M. Swinyard, C. Waelkens |
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| Rok vydání: | 2010 |
| Předmět: |
Physics
010504 meteorology & atmospheric sciences Hydrogen Photodissociation Analytical chemistry chemistry.chemical_element Astronomy and Astrophysics Hydrochloric acid Circumstellar envelope Astrophysics 01 natural sciences Diatomic molecule chemistry.chemical_compound chemistry 13. Climate action Space and Planetary Science 0103 physical sciences Anhydrous Chlorine Molecule 010303 astronomy & astrophysics 0105 earth and related environmental sciences |
| Zdroj: | Astronomy and Astrophysics. 518:L136 |
| ISSN: | 1432-0746 0004-6361 |
| DOI: | 10.1051/0004-6361/201014553 |
| Popis: | We report on the detection of anhydrous hydrochloric acid (hydrogen chlorine, HCl) in the carbon-rich star IRC +10216 using the spectroscopic facilities onboard the Herschel satellite. Lines from J = 1–0 up to J = 7–6 have been detected. From the observed intensities, we conclude that HCl is produced in the innermost layers of the circumstellar envelope with an abundance relative to H2 of 5 × 10-8 and extends until the molecules reach its photodissociation zone. Upper limits to the column densities of AlH, MgH, CaH, CuH, KH, NaH, FeH, and other diatomic hydrides have also been obtained. |
| Databáze: | OpenAIRE |
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