Skip to main content
New! Circulars over Kafka, Heartbeat Topic, and Schema v4.1.0. See news and announcements

GCN Circular 1743

Subject
GRB 021201 (short/hard), NOT observations
Date
2002-12-12T23:49:08Z (22 years ago)
From
Alberto Castro-Tirado at Inst.de Astro. de Andalucia <ajct@iaa.es>
J. M. Castro Cer�n (ROA, San Fernando),
J. Gorosabel and A. J. Castro-Tirado (IAA-CSIC, Granada)
C. M. Guti�rrez and M. L�pez-Corredoira (IAC, La Laguna)

report:

"On Dec 4.16 UT we observed the field of the short
/hard GRB 021201 (GCN 1719) with the 2.5-m Nordic 
Optical Telescope (+ALFOSC) at the Observatorio del 
Roque de los Muchachos, in order to monitor the 
entire IPN error box. In the co-added image (5 x 
900-s in the r' Sloan filter with a 2".8 seeing), 
no optical transient is found when comparing to the
DSS-2 (R-band). Particularly, a point-like optical 
source with R about 20.5 is found at coordinates 
RA(2000) = 08 07 49.35, Dec(2000) = +21 12 33.8 
(+/- 0".5); this is within 2" of the Chandra 
source # 10 reported to be inside the IPN error box 
(GCN 1741). Such object is visible in the blue and 
red DSS-2 charts as a very blue source that does 
not seem to be related to the GRB 021201. Further 
observations are planned." 

This message can be quoted.
Looking for U.S. government information and services? Visit USA.gov