Skip to main content
Testing. You are viewing the public testing version of GCN. For the production version, go to https://gcn.nasa.gov.
Announcing GCN Classic Migration Survey, End of Legacy Circulars Email. See news and announcements

GCN Circular 24194

Subject
LIGO/Virgo S190425z: ZTF19aarzaod Imaging from Las Cumbres Observatory
Date
2019-04-25T20:40:43Z (6 years ago)
From
Daichi Hiramatsu at Las Cumbres Observatory <dhiramatsu@lco.global>
Daichi Hiramatsu (LCO/UCSB), Iair Arcavi (Tel Aviv University), Jamison
Burke (LCO/UCSB), D. Andrew Howell (LCO/UCSB), Curtis McCully (LCO), Craig
Pellegrino (LCO/UCSB) on behalf of the Las Cumbres GW Follow-up
Collaboration

On 2019-04-25 19:21:09 UT we obtained two g-band images of the GW optical
counterpart candidate ZTF19aarzaod (Kasliwal et al. 2019, GCN 24191) with
the Las Cumbres Observatory 1m telescope at the Siding Spring Observatory
in Australia. We detect the candidate with a magnitude of g = 21.3��0.14
(using PSF fitting), consistent with the Tan et al. (2019, GCN 24193)
measurement.
Looking for U.S. government information and services? Visit USA.gov