- ID:
- ivo://nasa.heasarc/phebus
- Title:
- Granat Phebus Gamma-Ray Bursts
- Short Name:
- PHEBUS
- Date:
- 18 Apr 2025
- Publisher:
- NASA/GSFC HEASARC
- Description:
- The PHEBUS database table is the Terekhov et al. (1994, 1995) and Tkachenko et al. (1998, 2002) Catalog of Cosmic Gamma-Ray Bursts Registered by the Phebus (or Phoebus) instrument on-board the GRANAT Observatory which operated from December 1989 to December 1996. One of the purposes of Phebus was to study cosmic gamma-ray bursts (GRBs) in the 100 keV to 100 MeV region of the spectrum. This catalog contains information on GRBs registered during the entire seven years of the mission, such as the energy fluxes observed at the GRB luminosity maxima and the time-integrated energy fluences in the energy range above 100 keV. The details of the Phebus detectors and other operational information, such as the criteria for burst detection, can be found in the Terekhov et al. and Tkachenko et al. papers which are listed in the References Section. The original version of this database table was created by the HEASARC in the late 1990s. Later updates were made in February 2002 and March 2003, based on the HEASARC's transcription of Tables 1 and 2 of Terekhov et al. (1994), Terekhov et al. (1995) and Tkachenko, A.Yu. et al. (1998), and of Table 1 of Tkachenko, A.Yu. et al. (2002). This is a service provided by NASA HEASARC .
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- ID:
- ivo://nasa.heasarc/smmgrs
- Title:
- GRS Gamma-Ray Bursts
- Short Name:
- SMMGRS
- Date:
- 18 Apr 2025
- Publisher:
- NASA/GSFC HEASARC
- Description:
- The Gamma-Ray Spectrometer (GRS) was one of two instruments on the Solar Maximum Mission (SMM) which independently monitored cosmic gamma-ray bursts from SMM's launch in February 1980 until the end of the mission in 1989. The GRS was designed for investigation of the gamma-ray spectrum of solar flares (Forrest, D.J. et al. 1980, Sol. Phys., 65, 15). The main detector was an array of seven gain-controlled 7.6 cm diameter X 7.6 cm thick NaI(Tl) detectors. A complete spectrum was obtained every 16.38 seconds in the energy range 0.3-9 MeV. The number of counts in three energy windows covering the 4.2-6.4 MeV range was read out every 2.048 seconds. In addition, the number of counts in an approximately 50 keV wide window near 300 keV was read out every 64 milliseconds. The spectrometer was shielded by a 2.5 cm thick CsI(Na) annulus and a 25 cm diameter X 7.6 cm thick CsI(Na) back detector. The shield elements defined a field of view of approximately 135 degrees (FWHM) in the solar direction. The CsI back detector and the seven NaI detectors together provided a high-energy spectrometer with approximately 100 cm<sup>2</sup> effective area and four energy channels from 10 to 100 MeV. The number of counts in those high-energy channels was read out every 2.048 seconds. The experiment was complemented by two 8 cm<sup>2</sup> X 0.6 cm thick NaI(Tl) detectors which measured the X-ray portion of the spectrum every 1.024 seconds in the range from 13 keV to 182 keV. This database table was created by the HEASARC in the early 1990s based on tables supplied by the SMM Project and was subsequently revised in February 2002. This is a service provided by NASA HEASARC .
- ID:
- ivo://nasa.heasarc/pvogrb
- Title:
- PVO Gamma-Ray Bursts
- Short Name:
- PVOGRB
- Date:
- 18 Apr 2025
- Publisher:
- NASA/GSFC HEASARC
- Description:
- This catalog gives information on the triggered events detected by the PVO instrument from 1978-09-14 to 1988-07-21. The table was taken from the Ph.D. thesis of Kuan-Wen Chuang (UC-Riverside, 1990). The data originates from the Ph.D. thesis of Kuan-Wen Chuang (UC-Riverside, 1990). The current version of this database table was created by the HEASARC in August 2002, replacing the previous version (named PVOTRIG) in which the times were somewhat inaccurate. This is a service provided by NASA HEASARC .
- ID:
- ivo://nasa.heasarc/konus
- Title:
- VeneraKONUS11&12Bursts
- Short Name:
- KONUS
- Date:
- 18 Apr 2025
- Publisher:
- NASA/GSFC HEASARC
- Description:
- The KONUS instruments were flown on pairs of Venera spacecraft. Veneras 11/12 were launched in September 1978; bursts were recorded through January 1980. Veneras 13/14 were launched in November 1981 and were operational through approximately March 1983. The Veneras were interplanetary spacecraft, which flew to Venus, and thus each spacecraft had whole sky coverage for most of its mission. This is a service provided by NASA HEASARC .
