The QUIJOTE1 line survey of TMC-1
We present the recent results obtained with the QUIJOTE line survey of the cold dark core TMC-1. The observations have been carried out with the YEBES 40m radio telescope (see Figure 1) in the Q-band (31-50 GHz). A new set of receivers have been installed in the telescope within the frame of the ERC...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2022-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2022/09/epjconf_ism2022_00041.pdf |
| _version_ | 1811228641684619264 |
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| author | Cernicharo José Agúndez Marcelino Cabezas Carlos Marcelino Nuria Tercero Belén Pardo Juan Ramón Fuentetaja Raúl de Vicente Pablo |
| author_facet | Cernicharo José Agúndez Marcelino Cabezas Carlos Marcelino Nuria Tercero Belén Pardo Juan Ramón Fuentetaja Raúl de Vicente Pablo |
| author_sort | Cernicharo José |
| collection | DOAJ |
| description | We present the recent results obtained with the QUIJOTE line survey of the cold dark core TMC-1. The observations have been carried out with the YEBES 40m radio telescope (see Figure 1) in the Q-band (31-50 GHz). A new set of receivers have been installed in the telescope within the frame of the ERC synergy Nanocosmos project that allows to cover the whole 31-50 GHz band in dual polarization [1]. The spectral resolution is 38.15 kHz. The sensitivity achieved so far varies between 0.12 and 0.25 mK, and allows to search for new molecules in a line by line (no stacking) detection procedure. These new data have permitted to detect the many relatively small protonated species of abundant molecules and eight sulfur-bearing species. The most exciting result is the detection of hydrocarbon chains and cycles with low permanent dipole moment, such as CH2CHCCH, CH2CCHCCH, the propargyl radical (C3H3), cyclopentadiene, indene (the first PAH detected in space), ortho-benzyne and two ethynyl derivatives of cyclopentadiene (c-C5H5CCH) ([2–7]). We have found that the gas-phase chemistry of hydrocarbons in TMC-1 has to be revisited in depth. |
| first_indexed | 2024-04-12T10:01:26Z |
| format | Article |
| id | doaj.art-ee26505fbbb342b3865deac94cf3bf1e |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-04-12T10:01:26Z |
| publishDate | 2022-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-ee26505fbbb342b3865deac94cf3bf1e2022-12-22T03:37:34ZengEDP SciencesEPJ Web of Conferences2100-014X2022-01-012650004110.1051/epjconf/202226500041epjconf_ism2022_00041The QUIJOTE1 line survey of TMC-1Cernicharo José0Agúndez Marcelino1Cabezas Carlos2Marcelino Nuria3Tercero Belén4Pardo Juan Ramón5Fuentetaja Raúl6de Vicente Pablo7Instituto de Física Fundamental, Dpt. Molecular Astrophysics, CSICInstituto de Física Fundamental, Dpt. Molecular Astrophysics, CSICInstituto de Física Fundamental, Dpt. Molecular Astrophysics, CSICObservatorio Astronómico Nacional, IGNObservatorio Astronómico Nacional, IGNInstituto de Física Fundamental, Dpt. Molecular Astrophysics, CSICInstituto de Física Fundamental, Dpt. Molecular Astrophysics, CSICObservatorio de Yebes, IGNWe present the recent results obtained with the QUIJOTE line survey of the cold dark core TMC-1. The observations have been carried out with the YEBES 40m radio telescope (see Figure 1) in the Q-band (31-50 GHz). A new set of receivers have been installed in the telescope within the frame of the ERC synergy Nanocosmos project that allows to cover the whole 31-50 GHz band in dual polarization [1]. The spectral resolution is 38.15 kHz. The sensitivity achieved so far varies between 0.12 and 0.25 mK, and allows to search for new molecules in a line by line (no stacking) detection procedure. These new data have permitted to detect the many relatively small protonated species of abundant molecules and eight sulfur-bearing species. The most exciting result is the detection of hydrocarbon chains and cycles with low permanent dipole moment, such as CH2CHCCH, CH2CCHCCH, the propargyl radical (C3H3), cyclopentadiene, indene (the first PAH detected in space), ortho-benzyne and two ethynyl derivatives of cyclopentadiene (c-C5H5CCH) ([2–7]). We have found that the gas-phase chemistry of hydrocarbons in TMC-1 has to be revisited in depth.https://www.epj-conferences.org/articles/epjconf/pdf/2022/09/epjconf_ism2022_00041.pdf |
| spellingShingle | Cernicharo José Agúndez Marcelino Cabezas Carlos Marcelino Nuria Tercero Belén Pardo Juan Ramón Fuentetaja Raúl de Vicente Pablo The QUIJOTE1 line survey of TMC-1 EPJ Web of Conferences |
| title | The QUIJOTE1 line survey of TMC-1 |
| title_full | The QUIJOTE1 line survey of TMC-1 |
| title_fullStr | The QUIJOTE1 line survey of TMC-1 |
| title_full_unstemmed | The QUIJOTE1 line survey of TMC-1 |
| title_short | The QUIJOTE1 line survey of TMC-1 |
| title_sort | quijote1 line survey of tmc 1 |
| url | https://www.epj-conferences.org/articles/epjconf/pdf/2022/09/epjconf_ism2022_00041.pdf |
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