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molecules:ism:mecho [2019/10/24 09:28] – mueller | molecules:ism:mecho [2023/03/06 12:52] – mueller | ||
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**Detection of Acetaldehyde in Sagittarius**\\ | **Detection of Acetaldehyde in Sagittarius**\\ | ||
//Molecules in the Galactic Environment// | //Molecules in the Galactic Environment// | ||
- | The //a//-type // | + | The //a//-type // |
+ | \\ | ||
Soon thereafter, the observation of the 2< | Soon thereafter, the observation of the 2< | ||
N. Fourikis, M. W. Sinclair, B. J. Robinson, P. D. Godfrey, and R. D. Brown,\\ | N. Fourikis, M. W. Sinclair, B. J. Robinson, P. D. Godfrey, and R. D. Brown,\\ | ||
**[[https:// | **[[https:// | ||
- | //Aust. J. Phys.// **27**, 425–430 (1974). | + | //Aust. J. Phys.// **27**, 425–430 (1974).\\ |
+ | \\ | ||
Many more transitions were detected toward hot cores such as Sgr B2 or OMC-1. However, the rotational temperatures were usually quite low (50 K or even considerably lower) and suggest an extended distribution. A fairly recent mapping of the 1< | Many more transitions were detected toward hot cores such as Sgr B2 or OMC-1. However, the rotational temperatures were usually quite low (50 K or even considerably lower) and suggest an extended distribution. A fairly recent mapping of the 1< | ||
J. N. Chengalur and N. Kanekar,\\ | J. N. Chengalur and N. Kanekar,\\ | ||
**[[https:// | **[[https:// | ||
- | //Astron. Astrophys.// | + | //Astron. Astrophys.// |
+ | \\ | ||
Ethanal has also been detected in cold clouds:\\ | Ethanal has also been detected in cold clouds:\\ | ||
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**[[https:// | **[[https:// | ||
// | // | ||
- | Both //A// and //E// internal rotation components of the 1< | + | Both //A// and //E// internal rotation components of the 1< |
+ | \\ | ||
It was also found in one of three translucent clouds (CB 17):\\ | It was also found in one of three translucent clouds (CB 17):\\ | ||
B. E. Turner, R. Terzieva, and E. Herbst,\\ | B. E. Turner, R. Terzieva, and E. Herbst,\\ | ||
**[[https:// | **[[https:// | ||
- | // | + | // |
+ | \\ | ||
A. Belloche, H. S. P. Müller, K. M. Menten, P. Schilke, and C. Comito\\ | A. Belloche, H. S. P. Müller, K. M. Menten, P. Schilke, and C. Comito\\ | ||
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**[[https:// | **[[https:// | ||
//Astron. Astrophys.// | //Astron. Astrophys.// | ||
- | They observed several transitions in the first excited torsional state. The vibrational temperature of about 150 K is higher than the rotational temperature of about 100 K. The difference was viewed as an indication of (far-) infrared pumping. | + | They observed several transitions in the first excited torsional state. The vibrational temperature of about 150 K is higher than the rotational temperature of about 100 K. The difference was viewed as an indication of (far-) infrared pumping.\\ |
+ | \\ | ||
J. K. Jørgensen, H. S. P. Müller, H. Calcutt, A. Coutens, M. N. Drozdovskaya, | J. K. Jørgensen, H. S. P. Müller, H. Calcutt, A. Coutens, M. N. Drozdovskaya, | ||
Line 38: | Line 44: | ||
**[[https:// | **[[https:// | ||
//Astron. Astrophys.// | //Astron. Astrophys.// | ||
- | The results were obtained in the course of a line survey of the solar-type protostellar binary IRAS 16293–2422 with ALMA covering the frequency range 329.1–362.9 GHz. The authors only investigated source B. They detected for the first time both < | + | The results were obtained in the course of a line survey of the solar-type protostellar binary IRAS 16293–2422 with ALMA covering the frequency range 329.1–362.9 GHz. The authors only investigated source B. They detected for the first time both < |
+ | \\ | ||
L. H. Coudert, L. Margulès, C. Vastel, R. Motiyenko, E. Caux, and J.-C. Guillemin\\ | L. H. Coudert, L. Margulès, C. Vastel, R. Motiyenko, E. Caux, and J.-C. Guillemin\\ | ||
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**[[https:// | **[[https:// | ||
species of acetaldehyde CH< | species of acetaldehyde CH< | ||
- | //Astron. Astrophys.// | + | //Astron. Astrophys.// |
+ | \\ | ||
+ | |||
+ | J. Ferrer Asensio , S. Spezzano, L. H. Coudert, V. Lattanzi, C. P. Endres, J. K. Jørgensen, and P. Caselli\\ | ||
+ | described the\\ | ||
+ | **[[https:// | ||
+ | //Astron. Astrophys.// | ||
+ | |||
+ | |||
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