GCN Circular 30937
Subject
IceCube-210922A: Hard X-ray flux limit for JCMT/SCUBA2 source from NuSTAR observations
Date
2021-10-13T17:43:00Z (3 years ago)
From
Felicia Krauss at Penn State U <Felicia.Krauss@psu.edu>
Felicia Krauss, Timoth��e Gregoire, Derek Fox, Doug Cowen, Hugo Ayala
(PSU) and Alexis Coleiro (APC) report for AMON (https://amon.psu.edu/):
The Nuclear Spectroscopic Telescope Array (NuSTAR) has observed the
JCMT/SCUBA2 source NVSS J040205-042434, proposed as a possible
counterpart to the IceCube-210922A high-energy neutrino (GCN Circ.
30862, 30882).
NuSTAR observed the position October 10 (13:55:13 UTC) -�� October 11��
(17:20:00 UTC) for a total of 49.2 ksec.
No X-ray source is visible in the field of view. The 3 sigma upper limit
for the 3-70 keV flux is 1.6x10^-11 ergs/cm^2/s assuming a photon index
of 2.