Hydrogen Cyanide in Comet C/2022 E3 (ZTF) from 3.4 mm Wave Spectra
The composition inside a comet nuclear can be detected through the molecular rotational emission lines at millimeter or submillimeter wavelengths. We observed a long-period comet C/2022 E3 (ZTF) using the Purple Mountain Observatory 13.7 m radio telescope at 3.4 mm during mid January and early Febru...
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IOP Publishing
2025-01-01
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| Series: | The Astronomical Journal |
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| Online Access: | https://doi.org/10.3847/1538-3881/ada7e7 |
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| author | Juncen Li Jianchun Shi Yuehua Ma Jixian Sun |
| author_facet | Juncen Li Jianchun Shi Yuehua Ma Jixian Sun |
| author_sort | Juncen Li |
| collection | DOAJ |
| description | The composition inside a comet nuclear can be detected through the molecular rotational emission lines at millimeter or submillimeter wavelengths. We observed a long-period comet C/2022 E3 (ZTF) using the Purple Mountain Observatory 13.7 m radio telescope at 3.4 mm during mid January and early February in 2023. From the observed spectra, the hydrogen cyanide (HCN)( J = 1–0) spectra lines was detected. The mean production rate of HCN is (8.30 ± 1.14) × 10 ^25 molec. s ^−1 in mid January and (3.91 ± 0.84) × 10 ^25 molec. s ^−1 in early February. we also estimated the upper limit of the production rate of HCO+. We obtained the abundance of HCN relative to water, (0.13 ± 0.02)% in mid January when C/2022 E3 (ZTF) got close to the Sun at 1.11 au, and (0.13 ± 0.03)% in early February at 1.16 au. Our conclusion leans toward E3 being similar to most comets, with the abundance of HCN remaining stable during our two observation periods. |
| format | Article |
| id | doaj-art-90d48eae790c43b98a15f3ef308eeebf |
| institution | Kabale University |
| issn | 1538-3881 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
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| series | The Astronomical Journal |
| spelling | doaj-art-90d48eae790c43b98a15f3ef308eeebf2025-02-07T08:31:13ZengIOP PublishingThe Astronomical Journal1538-38812025-01-01169312610.3847/1538-3881/ada7e7Hydrogen Cyanide in Comet C/2022 E3 (ZTF) from 3.4 mm Wave SpectraJuncen Li0Jianchun Shi1https://orcid.org/0000-0001-5654-5972Yuehua Ma2Jixian Sun3Key Laboratory of Planetary Sciences, Purple Mountain Observatory, Chinese Academy of Sciences , Nanjing 210023, People’s Republic of China ; [email protected]; School of Astronomy and Space Science, University of Science and Technology of China , Hefei 230026, People’s Republic of ChinaShanghai Astronomical Observatory, Chinese Academy of Sciences , Shanghai 200030, People’s Republic of China ; [email protected] Laboratory of Planetary Sciences, Purple Mountain Observatory, Chinese Academy of Sciences , Nanjing 210023, People’s Republic of China ; [email protected]; School of Astronomy and Space Science, University of Science and Technology of China , Hefei 230026, People’s Republic of ChinaKey Laboratory for Radio Astronomy, Chinese Academy of Sciences , Nanjing 210023, People’s Republic of ChinaThe composition inside a comet nuclear can be detected through the molecular rotational emission lines at millimeter or submillimeter wavelengths. We observed a long-period comet C/2022 E3 (ZTF) using the Purple Mountain Observatory 13.7 m radio telescope at 3.4 mm during mid January and early February in 2023. From the observed spectra, the hydrogen cyanide (HCN)( J = 1–0) spectra lines was detected. The mean production rate of HCN is (8.30 ± 1.14) × 10 ^25 molec. s ^−1 in mid January and (3.91 ± 0.84) × 10 ^25 molec. s ^−1 in early February. we also estimated the upper limit of the production rate of HCO+. We obtained the abundance of HCN relative to water, (0.13 ± 0.02)% in mid January when C/2022 E3 (ZTF) got close to the Sun at 1.11 au, and (0.13 ± 0.03)% in early February at 1.16 au. Our conclusion leans toward E3 being similar to most comets, with the abundance of HCN remaining stable during our two observation periods.https://doi.org/10.3847/1538-3881/ada7e7Long period cometsSubmillimeter astronomy |
| spellingShingle | Juncen Li Jianchun Shi Yuehua Ma Jixian Sun Hydrogen Cyanide in Comet C/2022 E3 (ZTF) from 3.4 mm Wave Spectra The Astronomical Journal Long period comets Submillimeter astronomy |
| title | Hydrogen Cyanide in Comet C/2022 E3 (ZTF) from 3.4 mm Wave Spectra |
| title_full | Hydrogen Cyanide in Comet C/2022 E3 (ZTF) from 3.4 mm Wave Spectra |
| title_fullStr | Hydrogen Cyanide in Comet C/2022 E3 (ZTF) from 3.4 mm Wave Spectra |
| title_full_unstemmed | Hydrogen Cyanide in Comet C/2022 E3 (ZTF) from 3.4 mm Wave Spectra |
| title_short | Hydrogen Cyanide in Comet C/2022 E3 (ZTF) from 3.4 mm Wave Spectra |
| title_sort | hydrogen cyanide in comet c 2022 e3 ztf from 3 4 mm wave spectra |
| topic | Long period comets Submillimeter astronomy |
| url | https://doi.org/10.3847/1538-3881/ada7e7 |
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