Open Access
Table 1
Key attributes of astronomical alert message sources.
| Message sourcea | Descriptionb | Message formatc |
|---|---|---|
| ATel | A web-based short-notice publishing system that quickly reports new astronomical observations, with content publicly available in real-time. Simple and efficient. | Human-readable |
| CHIME/FRB VOEvent | Real-time machine-readable alerts issued by the CHIME/FRB collaboration for fast radio burst detections, formatted according to the IVOA VOEvent standard. | Machine-readable |
| Circulars | Readable and citable quick bulletins, usually not in real-time, containing observational results, short-term predictions, follow-up observation requests, or future observation plans. | Human-readable |
| Notices | Automatically generated real-time alerts in machine-to-machine format, typically using the VOEvent standard, containing localization and detection information for astronomical events like GRBs and GWs. | Machine-readable |
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.