Roles and Organization of the Burst Advocate Support Team in Astrophysics
This document outlines the structure and responsibilities of the Burst Advocate (BA) support team in the context of astrophysics research, focusing on roles such as Burst Advocate, Instrument Scientist, Instrument Expert, and Burst Advocate Assistant. The team's tasks include supervising data distribution, validating triggers, generating scientific products, and providing local support. The rotation and management of BAs in shifts at science centers are also explained. French-Chinese collaboration and the use of tools for organizing shifts are discussed.
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BA orginazation Arnaud Claret and Liping Xin @ SVOM team Qiannan Guiyang, China 20170427 1
Outline Introduction to BA support team BA organization BA working map BA tools next works 2
Burst advocate (BA) has an astronomical role (one for each burst candidate) 1. supervise the distribution of notices elaborated automatically on the basis of VHF data, 2. send the first circular relative to all instruments, 3. validate the trigger and decide about the revisit. 4. trigger the follow-up 3
Support Team Instrument scientist (IS) instrument expert (IE) Burst advocate assistant (BAA) 4
Instrument Scientist an expert about data analysis (one for each instrument) 1. generate and validate the final scientific products of the highest confidence level elaborated from X band data, 2. send the circular relative to one instrument. 5
Instrument expert an engineering role (one for each instrument) 1. reachable in case the BA faces something he does not understand about an instrument 6
Burst Advocate assistent special add-on for SVOM 1. provide local support to unexperienced BA (one at each science centre CSC/FSC) 2. check the pertinence for the burst revisit before the BA sends the request. 7
French-Chinese organization What makes BA switching? 1. A BA is on duty for a given interval (a shift), he is responsible for all the alerts that occurred during its shift. 2. The minimal duration of a shift is 4 hours (TBC). 8
How to manage the BA list and shift? Two science centers: FSC and CSC Each science center: 1. is responsible for the rotation of the BAs in this half-day shift 2. should provide the FSC with the list of BAs on duty for all the shift under its responsibility. 3. shall host a tool which allows organizing the rotation of his BA in this half-day shift in near real time. 9
What happens first in case of alert? BA connection 1. The BA should be able to connect to the science centers via internet at any time. 2. He/she shall be able to indicate that he/she responded to the alert message what one received. 3. The IS is paged as soon as X band data reach the FSC/CSC Burst telecon 4. As soon as a burst is detected, a burst telecon is initiated. 5. Everyone who is on shift joins the telecon. 6. It lasts until discussion on the new alert is complete. 7. The nominal duration of the telecon is 15min. 10
What about data analysis? Notice N1 based on results processed on-board received by VHF, managed automatically at FSC. Notice N2 based on partial set of data still received by VHF, results are produced automatically on ground at FSC, supervised by BA, the IS can be called if necessary. Notice N3 based on full set of X band data 1. First set of results is produced automatically for BA use only. 2. More accurate set is produced interactively by IS for a single instrument 3. All results are compiled by BA for multi-instrumental follow-up. 11
Time 13
General requirements for Support tools Making BA s work smoothly and effectively. Support multi-user to work simultaneously. Two or more BAs are at on-alert IS/IE/BAa are also working on it locally or remotely. 14
More specifically for the tools 1. BA management: list, shift, update etc. 2. Notifications to BA: New shift, data, trigger, help 3. Requests by BA: follow-up, revisit, support 4. Data analysis : VHF, X band data, validation of a trigger 5. Publish the results: GCN circular, report, publish etc. 6. Information query: system, instrument, obs. data etc 7. Hand-over: update the information via wiki, etc. 15
How to develop the BA tools? Develop Requirements iteration Develop strategy: step by step 16
How to develop the BA tools? Develop Requirements iteration Develop strategy: step by step To learn experience and develop it from other project, like GWAC, proposed by Jianyan 17
How about the support tools in GWAC system Timeline is key to search short transients. 1. Online processing + self trigger+ Follow-up is realised 2. Online tools (website) to vet the triggers is already built 3. follow-up the GBM + Swift Various members involved in the GWAC project: 4. Chinese technical team 5. Chinese science team from various institutes. 6. French science team involve the multi-messager astronomy. Telecon (chats) is used to ask for further observations by bigger telescopes (e.g. 2.16m at Xinglong obs.) Report of the results to dedicated wiki (contributed by A.Sarah et al.,). 18
Most of future work concerns: Eclairs/GRM To review the information available in real-time from the high-energy detectors(GRD and Eclairs) and also the particle monitor (GPM), which is helpful for the BA tools. To decide the pertinence of having IS with expertise field covering both ECLAIRs and GRM. Follow-up To define the interface needed for accessing GWAC data by the burst advocate, including for the offline triggers To clarify the follow-up activities (for offline triggers but not only) BA tools specify the list of needed information or displays BA training, false trigger learning, etc. 19
Thank you ! Merci ! 20