Expectations to Swift Gehrels et al. 2004, ApJ, 611, 1005 ▲ GRB progenitors? A early afterglows Blast wave A Short-GRB afterglows? interaction A Environments? A Classes of grbs? A(High-z) GRBs as astrophysical tools?
Expectations to Swift GRB progenitors? Early afterglows? Short-GRB afterglows? Environments? Classes of GRBs? (High-z) GRBs as astrophysical tools? Blast wave interaction? Gehrels et al. 2004, ApJ, 611, 1005
UVOT BAT Gehrels et al. 2004: Launch on 20 November 2004 XRT Spacecraft BURST ALERT TELESCOPE CHARACTERISTICS BAT Parameter value ngy range 15-150keV Aperture………… Coded mask, random pattem, 50% oper Detection area 5240cm Detector material CdZnTe(czt) Detector operation.... Photon Field of view……… 4 sr(half-coded) Detector elements.……1 256 modules of 128 elements module-l Detector element size 4×4×2mm3 Coded-mask cell size 5×5×1mm3 Pb tles Telescope PSI Source position and detemination…… 1”-4″ Sensitivity Number of bursts detected ++“++++++++++++++“++++ >100yr1
Gehrels et al. 2004; Launch on 20 November 2004
X-RAY TELESCOPE CHARACTERISTICS XRT Parameter value Energy range..... 0.2-10keV Telescope.…… JET-X wolter Detector E2V CCD- 22 Effective area 110 cm2 at 1.5 keV Detector operation... Photon counting, integrated imaging, and timing 23.6×236 Detection elements 600×602 pixels Pixel scale Telescope PSH l8″ HPD at1.5keV Sensitivity.…. 2 x 10-14 ergs cm-2s-(I mcrab)in 104s ULTRAVIOLET/OPTICAL TELESCOPE CHARACTERISTICS UVOT Parameter Value Wavelength range… 170-600mm Telescope… Modified Ritchey-Chret Aperture……… 30 cm diameter v-(5-18)x1014Hz numb Dete Intensified CCD Detector operation........ Photon counting Field of view 17”×17” Detection elements 2048×2048 pixels Telescope PSI……. 0 9 FWHM at 350 nm Colors Sensitiv ity.......... B= 24 in white light in 1000 s Pixel scale.… 0.5
ν ~(5-18)x1014 Hz
Discoveries in the Swift era 1. Prompt optical-IR emission and very early optical afterglows 2. Early steep decay and shallow decay of X-ray afterglows 3. X-ray flares from long/short bursts One high-redshift(z=6.295) burst 5. Afterglows and host galaxies of short bursts 6. Nearby GrB0602 18/SN2006aj; nearby GRB060614(3=0.125)/no supernova
Discoveries in the Swift era 1. Prompt optical-IR emission and very early optical afterglows 2. Early steep decay and shallow decay of X-ray afterglows 3. X-ray flares from long/short bursts 4. One high-redshift (z=6.295) burst 5. Afterglows and host galaxies of short bursts 6. Nearby GRB060218 / SN2006aj; nearby GRB060614 (z=0.125) / no supernova
1. Prompt optical-IR emission and very early optical afterglows GRB041219 1.0 026 18 23 1.0 0.8 20 40 60 80 t-tuig (s) Time since Swift GRB trigger(min) Vestrandet al 2005. Nature. 435.178 Blake et al. 2005. Nature. 435. 181
1. Prompt optical-IR emission and very early optical afterglows Vestrand et al. 2005, Nature, 435, 178 Blake et al. 2005, Nature, 435, 181