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| molecules:ism:ch3oh [2026/02/09 11:58] – mueller | molecules:ism:ch3oh [2026/02/09 12:14] (current) – mueller |
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| H. S. P. Müller, V. V. Ilyushin, A. Belloche, F. Lewen, and S. Schlemmer\\ | H. S. P. Müller, V. V. Ilyushin, A. Belloche, F. Lewen, and S. Schlemmer\\ |
| reported on an\\ | reported on an\\ |
| **[[https://doi.org/10.1051/0004-6361/202451011|Investigation of the Rotational Spectrum of CH<sub>3</sub><sup>17</sup>OH and its Tentative Detection toward Sagittarius B2(N)]]**\\ | **[[https://doi.org/10.1051/0004-6361/202451011|Investigation of the Rotational Spectrum of CH3(17)OH and its Tentative Detection toward Sagittarius B2(N)]]**\\ |
| //Astron. Astrophys.// **688**, Art. No. A201 (2024).\\ | //Astron. Astrophys.// **688**, Art. No. A201 (2024).\\ |
| The authors report a tentative detection of this isotopolog in the ReExploring Molecular Complexity with ALMA survey at 3 mm. Only one unblended and one partially blended line were identified, many more were severely bleded or too weak. The derived CH<sub>3</sub><sup>18</sup>OH to CH<sub>3</sub><sup>17</sup>OH ratio of ~3.3 is along <sup>18</sup>O to <sup>17</sup>O ratios found for other molecules in the Galactic Center as is the CH<sub>3</sub><sup>16</sup>OH to CH<sub>3</sub><sup>18</sup>OH ratio of 240.\\ | The authors report a tentative detection of this isotopolog in the ReExploring Molecular Complexity with ALMA survey at 3 mm. Only one unblended and one partially blended line were identified, many more were severely bleded or too weak. The derived CH<sub>3</sub><sup>18</sup>OH to CH<sub>3</sub><sup>17</sup>OH ratio of ~3.3 is along <sup>18</sup>O to <sup>17</sup>O ratios found for other molecules in the Galactic Center as is the CH<sub>3</sub><sup>16</sup>OH to CH<sub>3</sub><sup>18</sup>OH ratio of 240.\\ |
| Y. Watanabe, T. Oyama, A. Tamanai, S. Zeng, and N. Sakai\\ | Y. Watanabe, T. Oyama, A. Tamanai, S. Zeng, and N. Sakai\\ |
| reported on\\ | reported on\\ |
| **[[https://doi.org/10.1051/0004-6361/202556325|Investigation of the Rotational Spectrum of CH<sub>3</sub><sup>17</sup>OH and its Tentative Detection toward Sagittarius B2(N)]]**\\ | **[[https://doi.org/10.1051/0004-6361/202556325|Observation of CH3(17)OH and CH3(18)OH in Orion KL: A new Tool to Study Star Formation History]]**\\ |
| //Astron. Astrophys.// **705**, Art. No. A132 (2026).\\ | //Astron. Astrophys.// **705**, Art. No. A132 (2026).\\ |
| | The authors analyzed archival ALMA data near 231.89 GHz and 236.5 GHz and derived a CH<sub>3</sub><sup>18</sup>OH to CH<sub>3</sub><sup>17</sup>OH ratio of ~3.4–3.5, which corresponds to the expected <sup>18</sup>O/<sup>17</sup>O ratio at this galactocentric distance, reiteration the potential of methanol as a proble into the <sup>18</sup>O/<sup>17</sup>O ratio, as already done by Müller et al. in the previous paragraph.\\ |
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