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Suggested edits to llama_track_circular.jinja2

  • The sentence "The event's properties can be found at..." immediately follows a sentence stating the number of track-like events which were found. That is confusing because they are two different kinds of events, and the GW one has just been referred to as a "candidate". To improve it, change "The event's properties" to "The GW candidate's properties".

  • The circular template currently gives a URL like https://gracedb.invalid/events/S2468 . Why does this have "/events" instead of "/superevents" ? Does this circular come into play when there is a G event that did not make a superevent, and/or when there is a G event which DID make a superevent but the superevent did not meet the criteria for issuing a public alert on its own? If this circular should apply in both of those scenarios, some logic may be needed to construct the URL (and if it points to a G event, that needs to be exposed to the public; I am not sure GraceDB is currently able to expose a G event.)

  • Near the end of the circular, change "For further information" to "Further information", and remove the angle brackets around the URLs for stylistic consistency.

  • The flow of this circular would be better, I think, if it first introduces the GW candidate and the idea of searching for muon neutrino events; then notes that the GW event alone was not significant enough; THEN tells what neutrino candidates have been found. Like this:

The LIGO Scientific Collaboration, the Virgo Collaboration, and the
KAGRA Collaboration along with the IceCube Collaboration
(http://icecube.wisc.edu/) report:

Searches have been performed for track-like muon neutrino events
detected by IceCube consistent with the the time and sky localization
of the gravitational-wave (GW) candidate S2468. The GW candidate's
properties can be found at this URL:
https://gracedb.invalid/events/S2468
Based on the analysis of gravitational-wave data alone, this candidate
does not meet LIGO/Virgo/KAGRA criteria for a public alert.

IceCube data was searched in a time range of 1000 seconds [1] centered
on the GW event time (2023-04-30 18:42:52.276 UTC to 2023-04-30
18:59:32.276 UTC).  During this time period IceCube was collecting
good quality data. The hypothesis test employed by LLAMA uses a
Bayesian approach to quantify the joint GW + neutrino event
significance. [2] From this analysis, 5 track-like events were found
in spatial and temporal coincidence with the gravitational-wave
candidate S2468. Properties of these potentially coincident neutrinos
together with the p-values associated with the joint observation are
shown below.
Edited by Brandon Piotrzkowski