Table · dataset · 2024
Ammonia maser emission in Galactic high-mass SFRs
Listed in IVOA Registry (Virtual Observatory)
We present the results of a search for ammonia maser emission in 119 Galactic high-mass star-forming regions (HMSFRs) known to host 22GHz H_2_O maser emission.
Description
Our survey has led to the discovery ofnon-metastable NH3 inversion line masers toward 14 of these sources. This doubles the number of known non-metastable ammonia masers in our Galaxy, including nine new very high-excitation (J, K)=(9,6) maser sources.
These maser lines, including NH_3_ (5,4), (6,4), (6,5), (7,6), (8,6), (9,6), (9,8), (10,8), and (11,9), arise from energy levels of 342K, 513K, 465K, 606K, 834K, 1090K, 942K, 1226K, and 1449K above the ground state. Additionally, we tentatively report a new metastable NH_3_ (3,3) maser in G048.49 and an NH_3_ (7,7) maser in G029.95. Our observations reveal that all of the newly detected NH_3_ maser lines exhibit either blueshifted or redshifted velocities with respect to the source systemic velocities.
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Among the non-metastable ammonia maser lines, larger velocity distributions, offset from the source systemic velocities, are found in the ortho-NH_3_ (K=3n) transitions than in the para-NH_3_ (K{diff}3n) ones.
Links
Where it is published
- Reference page cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/686/A205 ↗
landing page · from IVOA Registry
Documentation and papers
- ADS 2024A&A...686A.205Y ui.adsabs.harvard.edu/abs/2024A%26A...686A.205Y ↗
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/686/a205 ↗
catalogue entry · from IVOA Registry
Topics
- Stated by source
- Radio
- From keywords
- Astronomy & Astrophysics
Provenance · 1 source records, 8 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| IVOA Registry (Virtual Observatory) | ivo://cds.vizier/j/a+a/686/a205 | 12 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: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 |