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start [2021/06/23 14:59] fuente |
start [2021/06/23 15:23] fuente [Presentation] |
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====== GEMS project ====== | ====== GEMS project ====== | ||
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- | "Gas phase Elemental abundances in Molecular Clouds" | + | "Gas phase Elemental abundances in Molecular Clouds" |
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These parameters are the essential ingredients for chemical models and for cloud collapse simulations because they govern the gas cooling and the coupling of the gas with the magnetic field. Hence, they are of paramount importance for star formation galactic studies. From the chemical point of view, the variation of the elemental abundances in gas phase is a valuable information to determine the evolution of dust grains and the composition of the icy grain mantles across the cloud. | These parameters are the essential ingredients for chemical models and for cloud collapse simulations because they govern the gas cooling and the coupling of the gas with the magnetic field. Hence, they are of paramount importance for star formation galactic studies. From the chemical point of view, the variation of the elemental abundances in gas phase is a valuable information to determine the evolution of dust grains and the composition of the icy grain mantles across the cloud. | ||
As an intermediate product, we will provide a complete set of molecular data in dark clouds. | As an intermediate product, we will provide a complete set of molecular data in dark clouds. | ||
- | In particular, our dataset will include high-sensitivity spectroscopic observations of CS, SO, H2S, HCS+, SO2, OCS and H2CS. | + | In particular, our dataset will include high-sensitivity spectroscopic observations of CS, SO, H< |
Up to our knowledge, it constitutes the best S-bearing molecules dataset in dark clouds so far, and a key stone to progress in our understanding of the sulfur chemistry. | Up to our knowledge, it constitutes the best S-bearing molecules dataset in dark clouds so far, and a key stone to progress in our understanding of the sulfur chemistry. | ||
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===== Frequency and sensitivity coverage ===== | ===== Frequency and sensitivity coverage ===== | ||
- | 3 mm (FSW, rms ~ 10-20 mK) 2mm (FSW, rms ~ 10-20 mK for frequencies | + | 3 mm (FSW, rms ~ 10-20 mK) 2mm (FSW, rms ~ 10-20 mK for frequencies |
- | rms ~ 20-30 mK for frequencies | + | rms ~ 20-30 mK for frequencies |
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- | 85 GHz - 86.8 GHz 133.7 GHz - 135.5 GHz | + | 85.0 |
- | 88.3 GHz- 91.5 GHz | + | 88.3 GHz - 91.5 GHz 137.0 GHz - 138.8 GHz |
- | 92 GHz- 94.8 GHz | + | 92.0 |
- | 95.3 GHz- 97.0 GHz | + | 95.3 GHz - 97.0 GHz 146.4 GHz - 148.3 GHz |
- | 97.6 GHz - 99.4 GHz 158.8 GHz - 160.7 GHz | + | 97.6 GHz - 99.4 GHz 158.8 GHz - 160.7 GHz |
- | 101 GHz - 103 GHz 162.1 GHz - 163.9 GHz | + | 101.0 GHz - 103.0 GHz 162.1 GHz - 163.9 GHz |
- | 105.4 GHz -107.2 GHz | + | 105.4 GHz - 107.2 GHz 167.2 GHz - 169.0 GHz |
- | 108.7 GHz - 110.48 GHz | + | 108.7 GHz - 110.5 GHz 170.5 GHz - 172.3 GHz |
Last modified: le 2021/06/23 15:24