[vsnet-grb-info 10987] Trigger 504307: Swift detection of MAXI J1836-194

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  12405
SUBJECT: Trigger 504307: Swift detection of MAXI J1836-194
DATE:    11/09/28 19:49:15 GMT
FROM:    David Palmer at LANL  <palmer at lanl.gov>

S. D. Barthelmy (GSFC), W. H. Baumgartner (GSFC/UMBC),
S. Campana (INAF-OAB), M. M. Chester (PSU), N. Gehrels (NASA/GSFC),
D. Grupe (PSU), S. T. Holland (CRESST/USRA/GSFC),
S. Immler (CRESST/GSFC/UMD), J. A. Kennea (PSU),
H. A. Krimm (CRESST/GSFC/USRA), D. M. Palmer (LANL),
T. Sakamoto (NASA/UMBC), M. H. Siegel (PSU), C. A. Swenson (PSU),
T. N. Ukwatta (MSU) and B.-B. Zhang (PSU) report on behalf of the
Swift Team:

At 19:17:20 UT, the Swift Burst Alert Telescope (BAT) triggered on
MAXI J1836-194 (trigger=504307). 
The BAT on-board calculated location is 
RA, Dec 278.950, -19.328 which is 
   RA(J2000) = 18h 35m 48s
   Dec(J2000) = -19d 19' 40"
with an uncertainty of 3 arcmin (radius, 90% containment, including 
systematic uncertainty). This position lies 70 arcseconds from the 
reported Swift/XRT position of MAXI J1836-194 (Kennea et al., 
ATEL #3613). The BAT trigger was a 1024s image trigger. 
As is usual for an image trigger, the BAT light curve shows nothing 
of note. 

Due to an observing constraint, Swift will not slew until 
T0+47.2 minutes. There will be no XRT or UVOT data until
this time.