AI Article Synopsis
- Iminosilylene (HNSi) has been detected in labs and is predicted to exist in carbon-rich star envelopes, but its identification has been challenging due to a lack of spectroscopic data.
- The research introduces a detailed molecular line list for HNSi, featuring approximately 3.36 billion transitions among 1.57 million energy levels, accommodating rotational excitations up to 160.
- This line list is relevant for temperatures up to 3000 K and spans a wavenumber range of 0-9000 cm, making it essential for future studies in both laboratory and interstellar environments.
Article Abstract
Iminosilylene (HNSi) has been observed in the laboratory and is expected to occur in the envelopes of carbon-rich stars. However, the lack of spectroscopic information for HNSi has hampered its further astrophysical detection. Using robust methods, we present the first and comprehensive molecular line list for HNSi (X Σ). The new line list contains almost 3.36 billion transitions between 1.57 million levels with rotational excitation up to = 160. It is suitable for temperatures up to 3000 K and covers the wavenumber range of 0-9000 cm (wavelengths > 1.11 μm). This new line list can be helpful for the future spectroscopic characterization and molecular detection of HNSi in the laboratory and interstellar space.
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| http://dx.doi.org/10.1039/d4cp01046a | DOI Listing |
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High-temperature rotation-vibration spectrum of iminosilylene (HNSi).
Phys Chem Chem Phys
May 2024
School of Energy and Power Engineering, Shandong University, Jinan 250061, China.
Article Synopsis
- Iminosilylene (HNSi) has been detected in labs and is predicted to exist in carbon-rich star envelopes, but its identification has been challenging due to a lack of spectroscopic data.
- The research introduces a detailed molecular line list for HNSi, featuring approximately 3.36 billion transitions among 1.57 million energy levels, accommodating rotational excitations up to 160.
- This line list is relevant for temperatures up to 3000 K and spans a wavenumber range of 0-9000 cm, making it essential for future studies in both laboratory and interstellar environments.
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