Table · dataset · 2022
G358.93-0.03 22GHz H2O maser parameters
Listed in IVOA Registry (Virtual Observatory)
The massive young stellar object (MYSO) G358.93-0.03-MM1 showed an extraordinary NIR/(sub)mm-dark and FIR-loud accretion burst closely associated with flares of several class II methanol maser transitions and, later, a 22GHz water maser flare.
Description
Water maser flares provide an invaluable insight into ejection events associated with accretion bursts. Although, the short timescale of the 22GHz water maser flare made it impossible to carry on a VLBI observation, we could track it with the Karl G. Jansky Very Large Array (VLA).
The evolution of the spatial structure of the 22GHz water masers and their association with the continuum sources in the region is studied with the VLA at two epochs, pre- and post-H2O maser flare. A drastic change in the distribution of the water masers is revealed: in contrast to four maser groups detected at epoch I, only two newly formed clusters are detected at epoch II. The 22GHz water masers associated with the bursting source MM1 changed in morphology and emission velocity extent.
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Clear evidence of the influence of the accretion burst on the ejection from G358.93-0.03-MM1 is presented. Potentially, the accretion event has also affected a region with a radius of ~2'' (~13500AU at 6.75kpc), suppressing water masers associated with other point sources in the region.
Links
Where it is published
- Reference page cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/664/A44 ↗
landing page · from IVOA Registry
Documentation and papers
- ADS 2022A&A...664A..44B ui.adsabs.harvard.edu/abs/2022A%26A...664A..44B ↗
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/664/a44 ↗
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/664/a44 | 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 |