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[vsnet-grb-info 232] Re: HETE burst
皆様
青学/理研の吉田です。
このGRBはいわゆる short GRBで、対応天体についてまだ良く分かっていない
種類のGRBです。したがって、観測の科学的な意義が非常に大きい!
南天で起きたこと、shortなため統計が良くなく、位置決めの精度が悪いこ
となど、不利な条件がありますが、観測できる方はtryしてみて下さい。
. 吉田篤正 Atsumasa YOSHIDA
/| ___/___ ______ 青山学院大学理工学部物理学科 ayoshida@phys.aoyama.ac.jp
/-| __/__ / / / 〒157-8572 世田谷区千歳台 6-16-1
_____ /--/--/ 理化学研究所 客員研究員 ayoshida@crab.riken.go.jp
/____/ /__/__/
At Fri, 31 May 2002 10:58:23 +0900 (JST),
Taichi Kato wrote:
>
> Definte GRB, favorably situated:
>
> TITLE: GCN/HETE BURST POSITION NOTICE
> NOTICE_DATE: Fri 31 May 02 01:54:22 UT
> NOTICE_TYPE: HETE Ground Analysis
> TRIGGER_NUM: 2042, Seq_Num: 3
> GRB_DATE: 12425 TJD; 151 DOY; 02/05/31
> GRB_TIME: 1578.71 SOD {00:26:18.71} UT
> TRIGGER_SOURCE: Trigger on the 25-400 keV band.
> GAMMA_RATE: 250 [cnts/s] on a 0.020 [sec] timescale
> SC_-Z_RA: 247 [deg]
> SC_-Z_DEC: -22 [deg]
> SC_LONG: 0 [deg East]
> WXM_CNTR_RA: 229.002d {+15h 16m 00s} (J2000),
> 229.036d {+15h 16m 09s} (current),
> 228.288d {+15h 13m 09s} (1950)
> WXM_CNTR_DEC: -19.397d {-19d 23' 48"} (J2000),
> -19.406d {-19d 24' 20"} (current),
> -19.213d {-19d 12' 46"} (1950)
> WXM_MAX_SIZE: 120.00 [arcmin] diameter
> WXM_LOC_SN: 4 sig/noise (pt src in image)
> WXM_IMAGE_SN: X= 0.0 Y= 0.0 [sig/noise]
> WXM_LC_SN: X= 0.0 Y= 0.0 [sig/noise]
> SUN_POSTN: 67.73d {+04h 30m 56s} +21.86d {+21d 51' 40"}
> SUN_DIST: 162.34 [deg]
> MOON_POSTN: 309.23d {+20h 36m 55s} -22.64d {-22d 38' 35"}
> MOON_DIST: 73.97 [deg]
> MOON_ILLUM: 78 [%]
> GAL_COORDS: 343.80,31.77 [deg] galactic lon,lat of the burst
> ECL_COORDS: 231.76,-1.23 [deg] ecliptic lon,lat of the burst
> COMMENTS: Definite GRB.
> COMMENTS: WXM error box is circular; not rectangular.
> COMMENTS: Burst_Validity flag is true.
>
>
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