| Summary table |
|---|
| Variable |
Value |
Source |
| GRB_name_Fermi |
GRB090529310 |
|
| T0 |
7:26:21.899 UTC |
Fermi_GBM |
| ra |
231.2000° |
Fermi_GBM |
| decl |
32.2000° |
Fermi_GBM |
| pos_error |
4.92e+00° |
Fermi_GBM |
| T90 |
3.072 s |
Fermi_GBM |
| T90_error |
0.362 s |
Fermi_GBM |
| T90_start |
7:26:21.899 UTC |
Fermi_GBM |
| fluence |
8.34e-07 erg/cm² |
Fermi_GBM |
| fluence_error |
3.71e-08 erg/cm² |
Fermi_GBM |
| T100 |
3.072 s |
|
| GBM_located |
True |
|
| mjd |
54980.30997568287 |
Fermi_GBM |
| Fermi GBM table |
|---|
| GRB_name_Fermi |
GRB090529310 |
| trigger_name |
bn090529310 |
| ra |
231.2000° |
| decl |
32.2000° |
| pos_error |
4.92e+00° |
| datum |
2009-05-29 |
| t_trigger |
7:26:22.411 UTC |
| T90 |
3.072 s |
| T90_error |
0.362 s |
| T90_start |
7:26:21.899 UTC |
| fluence |
8.34e-07 erg/cm² |
| fluence_error |
3.71e-08 erg/cm² |
| flux_1024 |
3.28e+00 erg/cm²/s |
| flux_1024_error |
1.65e-01 erg/cm²/s |
| flux_1024_time |
-3.20e-01 erg/cm²/s |
| flux_64 |
5.71e+00 erg/cm²/s |
| flux_64_error |
7.52e-01 erg/cm²/s |
| GCN 9473 table |
|---|
| GRB_name |
GRB090529B |
| GCN_number |
9473 |
| Detection_method |
Fermi GBM Det |
| t_trigger |
7:26:22.410 UTC |
| ra |
231.2000° |
| decl |
32.2000° |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 9473
SUBJECT: GRB 090529B: Fermi GBM detection
DATE: 09/06/01 15:04:50 GMT
FROM: Arne Rau at MPE
Arne Rau (MPE) reports on behalf of the Fermi GBM Team:
"At 07:26:22.41 UT on 29 May 2009, the Fermi Gamma-Ray Burst Monitor
triggered and located GRB 090529B (trigger 265274784 / 090529310).
The on-ground calculated location, using the GBM trigger
data, is RA = 231.2, DEC = +32.2 (J2000 degrees,
equivalent to 15 h 25 m, 32 d 12 '), with an uncertainty
of 7.2 degrees (radius, 1-sigma containment,
statistical only; there is additionally a systematic
error which is currently estimated to be 2 to 3 degrees).
The angle from the Fermi LAT boresight is 36 degrees.
The GBM light curve consists of a single peak
with a duration (T90) of about 5.1 s (8-1000 keV).
The time-averaged spectrum from T0-1.792 s to T0+5.376 s is
best fit by a Band function with Epeak = 142 +/- 56 keV,
alpha = -0.7 +/- 0.3, and beta = -2.0 +/- 0.3
(chi squared 561 for 544 d.o.f.).
The event fluence (8-1000 keV) in this time interval is
(3.4 +/- 0.9)E-07 erg/cm^2. The 1.28-sec peak photon flux measured
starting from T0+0.003 s in the 8-1000 keV band
is 4.1 +/- 0.1 ph/s/cm^2.
The spectral analysis results presented above are preliminary;
final results will be published in the GBM GRB Catalog."
|
| GCN 9477 table |
|---|
| GRB_name |
GRB090529B |
| GCN_number |
9477 |
| Detection_method |
Optical |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 9477
SUBJECT: GRB090529B: ROVOR Upper Limits
DATE: 09/06/01 21:51:27 GMT
FROM: J. Ward Moody at BYU
Richard L. Pearson, Cameron J. Pace and J. Ward Moody report for
Brigham Young Universitys ROVOR team:
We searched for GRB 090529B at the position specified by the Fermi
notice processed at 07:27:20UT on 29 May 2009 (Fermi-GBM Ground
Position notice, trigger 265274784, record 57). The notice reports a
GRB position of 15h 36m 29s +37d 02 22 (J2000) with an error of 9.86
degrees. ROVORs 0.41 m telescope, with a FOV = 10 arcminutes,
centered the frames at 15h 36m 26.924s ( 0.0990 arcseconds) +37d 04
28.748 ( 0.1145 arcseconds, J2000). Rau (GCN Circ. 9473) reports a
ground calculated location of 15h 25m +32d 12 with an uncertainty of
7.2 degrees. Our images are well within the degree of uncertainty
reported by the Fermi trigger and within 1.9 degrees from the
specified location in GCN Circ. 9473.
ROVOR began retrieving data at 08:51:06.4UT (1.15 hrs post-burst). 25
x 60s frames were taken in the R band and 10 x 60s frames were taken
in the V band. No optical afterglow was located after stacking the
images and comparing them to the STScI Digital Sky Survey image of the
same field. By using calibration stars from the nearby field of Mrk
501 (16h 53m 52.13s +39d 45 36.2, J2000), limiting magnitudes of V >
20.7 0.1mag and R > 21.4 0.1mag were found.
|