LCOGT Optical Followup Observations of IceCube-160731
ATel #9327; I. Arcavi, G. Hosseinzadeh, D. Guevel, R. Kirptarick, S. Vasylyev, C. McCully, D. A. Howell (LCOGT / UCSB) and S. Valenti (UC Davis)
on 5 Aug 2016; 16:45 UT
Credential Certification: Iair Arcavi (iarcavi@lcogt.net)
Subjects: Optical, Neutrinos, Transient
We observed the following fields with the Las Cumbres Observatory Global Telescope (LCOGT) Network's 1-meter telescopes in response to the IceCube-160731 event:
Center RA Center Dec Date Time Site Instrument
215.096125 -0.4198714 2016-07-31 23:04:41 Chile Sinistro
215.0903862 -0.4211 2016-07-31 23:04:53 Chile SBIG
215.0946317 -0.4198569 2016-08-01 16:56:06 S. Africa SBIG
214.568725 -0.3829144 2016-08-01 18:09:39 S. Africa SBIG
214.5682004 -0.378775 2016-08-02 16:58:26 S. Africa SBIG
214.5645821 -0.3793739 2016-08-02 23:06:07 Chile SBIG
214.5687292 -0.3787639 2016-08-03 16:57:12 S. Africa SBIG
214.5687167 -0.3787667 2016-08-03 18:29:11 S. Africa SBIG
215.59905 -0.3876583 2016-08-01 08:24:06 Australia SBIG
215.59905 -0.3881914 2016-08-01 16:56:06 S. Africa SBIG
215.6009804 -0.3859047 2016-08-01 23:05:20 Chile Sinistro
215.5986554 -0.3878431 2016-08-02 02:47:55 Texas Sinistro
215.5990458 -0.3904944 2016-08-03 17:57:46 S. Africa SBIG
214.5400396 -0.3347533 2016-08-01 00:00:50 Chile Sinistro
214.5439958 -0.3349103 2016-08-01 17:50:07 S. Africa SBIG
214.5393775 -0.3348056 2016-08-02 00:12:25 Chile SBIG
214.5439958 -0.3378797 2016-08-02 16:58:40 S. Africa SBIG
214.5482496 -0.333645 2016-08-02 16:58:53 S. Africa Sinistro
214.5439958 -0.3348056 2016-08-02 23:06:32 Chile Sinistro
214.5487471 -0.3305631 2016-08-03 16:57:22 S. Africa Sinistro
The field of view of the SBIG cameras is 15.8' by 15.8', and that of the Sinistro cameras is 26.5' by 26.5'. Our pointings are centered on the centers of the reported IceCube error regions and on two nearby galaxies in those regions: NGC5584 and 2MASX J14181651-0022435. All fields were imaged in U,B,V,g,r,i filters. For the images taken in the g,r,i filters, we subtracted corresponding SDSS images and searched for new sources. Initial inspection of the subtraction images reveals no new sources down to 3-sigma limiting magnitudes >19.
Additional observations and analysis are ongoing.
