TDE Focus meeting - public page

Date: 2021 March 19th
Time: 1200 UK via Zoom (code  tspaq1Cg)
Attendees:
Team: Andy, Roy, Stephen
Panel: Matt Nicholl (Birmingham), Iair Arcavi + Yale Degani (Tel Aviv)
Tom Wevers (ESO); Giorgos Leloudas + Miika Pursiainen (Denmark)
SWG : Sarah Casewell (Leic); Cosimo Inserra (Cardiff)
Length: probably an hour, max 90mins

Aim

Free-form brainstorming on Lasair user interface and functionality, and future directions. Does it do what is needed for TDE science? Open opinions welcome, but the Lasair team will also have questions.

Prep

• Reflect on the TDE watch experience

• Play with current version of Lasair, eg simple searches, filters, watchlists, Jupyter

• Try Jupyter with the prototype API, at the development version of Lasair

Structure

• Matt to start with 5min summary of the TDE watch process

• Free-form reactions and opinions

• Respond to some specific questions

• Make suggestions for what can be done

• We will record major outcomes but not all the detailed discussion

Some questions from Roy

(1)Redshift (sherlock z and photoz) are sometimes available for the host. Why not used in the query?

(2) Did we get it right on the new features? (see https://lasair-iris.roe.ac.uk/schema). Are they useful?

• moving averages of difference magnitudes

• most recent and 2nd most recent delta-mag/delta-T for g and r

• Number in light curve with good quality and brighter than reference in last 7 days, 14 days, and whole light curve

• Value of g-r on most recent night when both were available, and JD for that

(3) How are you getting the results of this streaming query? Is it

• Run the query every day by clicking the web page?

• Run the query every day by API

• Get emails when a candidate is found

• Fetch the stream digest every day

(4) Will you want to get real-time Kafka results that we will have soon?

(5) Can you shift over from lasair to lasair-iris?

(6) Do you want to annotate objects in some way? If so, what kinds of annotation? How can we avoid building a full-blown marshal system?

(7) Do you want group ownership of query/watchlist? Or another kind of group ownership? How much of a priority is this?