Gamma-ray Burst 960720

Here you find some information on the follow-up observations of the BeppoSAX GRB 960720.

Previous IAU Circulars

• IAUC 6467 Discovery with WFC onboard BeppoSAX
  
• IAUC 6469 ROSAT all-sky survey source
  
• IAUC 6472 VLA observations
  
• IAUC 6480 BeppoSAX MECS/LECS source
  
• IAUC 6481 ASCA detection of BeppoSAX source
• IAUC 6487 ROSAT HRI observation
• IAUC 6526 broadband UBVI photometry
• IAUC 6569 Revised WFC position and reduced error circle
• IAUC 6570 X-ray source RX J1730.7+4906 = QSO 1729+491 (= 4C 49.29) in revised error circle; X-ray source also seen in BeppoSAX NFI

• ROSAT HRI image taken on August 31, 1996
  A total of 8 X-ray sources with likelihood greater than 7 have been found within the GRB error box.
  
• BeppoSAX MECS/LECS images
  
• V band image of the SAX/ASCA source position
  The large circle represents the 1 arcmin error radius of the X-ray source detected with BeppoSAX MECS/LECS and ASCA, while the small circles represent 10 arcsec error radii of the ROSAT HRI sources. The two sources at the bottom are Seyfert galaxies (optical spectra see below). The source at the very top is the z=1.7 QSO reported in IAUC 6526.
  
• Optical spectra of RX J1729.5+4904 and RX J1729.3+4904. Note that the flux calibration is still preliminary, especially at the blue end.
• Optical spectrum of RX J1729.4+4906 as reported in IAUC 6526.