LSC-Virgo Burst Analysis Working Group

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Burst Group External Collaboration Overview

Overview of Active or Possible External Collaboration

Name of external person(s), group, or scientific collaboration:

Astronomer Vik Dhillon of the University of Sheffield

Brief description of collaborative activity (one sentence):

Obtain rapid-response observing time on large-aperture telescopes with fast cameras in order to follow up well-localized GW event candidates.

Contact person(s) in the LSC+Virgo collaborations:

Ed Daw

External contact person(s):

Vik Dhillon

How does/would this collaborative activity benefit the LSC and Virgo?

If we have a well-localized GW trigger--due to some combination of high-SNR position reconstruction, nearby-galaxy targeting, or a potential X-ray or optical counterpart seen by a wide-field telescope--then prompt observing by a large-aperture telescope can study the optical counterpart in detail, even if it is dim (having faded, perhaps).

Are there other individuals/groups who could provide similar benefits?

If so, what is the scientific and/or practical justification for pursuing this particular collaboration?
There are lots of large-aperture telescopes, but Dhillon brings expertise on studying time variability in optical sources and access to a unique instrument, in particular as the builder of ULTRACAM, a unique instrument which provides multi-color images at high frame rates if desired. Dhillon is located at Sheffield along with LSC member Ed Daw, making for a productive collaboration. A Sheffield graduate student (Darren White) has been identified to work on this collaborative project.

Are any joint proposals planned to be submitted, e.g. for funding or for telescope time?

If so, indicate what will be proposed, to what agency or entity, and who will be listed as the investigator(s).
Yes, proposals for rapid-response observing time will be made, probably on the 3.5-meter New Technology Telescope in Chile (where ULTRACAM will hopefully be mounted semi-permanently) and the 2-meter fully-robotic Liverpool telescope on La Palma. The investigators will probably be Dhillon, Daw, White, and perhaps another LSC/Virgo member.

Describe any paper(s) which will/might result from this collaboration

Any observation(s) of an optical transient associated with a GW signal would result in a jointly-authored detection paper. We probably won't publish anything if we don't detect anything.

What preliminary studies (if any) have been done or are currently being done?

None so far.

Any other comments:

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