GCN Circular 36245
Subject
LIGO/Virgo/KAGRA S240422ed: GW-MMADS DECam observations
Date
2024-04-23T06:14:10Z (7 months ago)
From
Igor Andreoni at JSI/UMD/NASA <igor.andreoni@gmail.com>
Via
Web form
Antonella Palmese (CMU), Lei Hu (CMU), Tomás Cabrera (CMU), Brendan O'Connor (CMU), Keerthi Kunnumkai (CMU), Igor Andreoni (UMD) report on behalf of the GW-MMADS team:
We observed the high probability area of the LVK gravitational wave candidate S240422ed (GCN 36236, GCN 36240) using the wide-field Dark Energy Camera (DECam) on the 4m Blanco telescope, as part of the Gravitational Wave Multi-Messenger Astronomy DECam Survey (GW-MMADS; PI: Andreoni & Palmese). Observations were carried out between 2023-04-22 23:37 and 2024-04-23 03:40 UTC in r and z band using 60s exposures.
Our pointings have been reported to the TreasureMap (Wyatt et al., 2020): https://treasuremap.space/alerts?graceids=S240422ed
Data reduction is underway.
We thank the CTIO and NOIRLab staff for supporting these observations and the data calibrations.