Table · dataset · 2022
Comet C/2020 F3 (NEOWISE) IRAM and NOEMA spectra
Listed in IVOA Registry (Virtual Observatory)
We present the results of millimetre-wave spectroscopic and continuum observations of comet C/2020 F3 (NEOWISE) undertaken with the Institut de RadioAstronomie Millimetrique (IRAM) 30-m and the NOrthern Extended Millimeter Array (NOEMA) telescopes on 22, 25-27 July and 7 August 2020.
Description
Production rates of HCN, HNC, CH_3_OH, CS, H_2_CO, CH_3_CN, H_2_S, and CO were determined with upper limits on 6 others species. The comet shows abundances within the range observed in other comets.
The CO abundance is low (3.2% relative to water) while H_2_S is relatively abundant (1.1% relative to water). The H_2_CO abundance shows a steep variation with heliocentric distance, possibly related to a distributed production from the dust or macro-molecular source. The CH_3_OH and H_2_S production rates show a slower decrease post-perihelion than water.
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Interferometric map of the continuum could not detect the nucleus point source contribution (implying a size r<4.7km) but yielded an estimate of the dust production rate, leading to a relatively low dust-to-gas ratio of 0.7+/-0.3 on 22.4 July 2020.
Links
Where it is published
- Reference page cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/668/A171 ↗
landing page · from IVOA Registry
Documentation and papers
- ADS 2022A&A...668A.171B ui.adsabs.harvard.edu/abs/2022A%26A...668A.171B ↗
publication · from IVOA Registry
Catalogue records · 2
- VOResource record dc.g-vo.org/oai.xml?verb=GetRecord&metadataPrefix=ivo_vor&identifier=ivo%3… ↗
metadata API · from IVOA Registry
- Registry record (GAVO) dc.g-vo.org/I/cds.vizier/j/a%2Ba/668/a171 ↗
catalogue entry · from IVOA Registry
Topics
- Stated by source
- Millimeter · Radio
- From keywords
- Astronomy & Astrophysics
Provenance · 1 source records, 9 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| IVOA Registry (Virtual Observatory) | ivo://cds.vizier/j/a+a/668/a171 | 14 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[field].local:field:astronomy | mapping · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[modality].ivoa_waveband:millimeter | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[modality].ivoa_waveband:radio | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| description | source · IVOA Registry | connector:ivoa_registry@1.0.0 | rr.resource.res_description |
| license_text | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| publication_date | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| title | source · IVOA Registry | connector:ivoa_registry@1.0.0 | rr.resource.res_title |
| updated_date | source · IVOA Registry | connector:ivoa_registry@1.0.0 |