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Early Results from the Low-Energy Concentrator Spectrometer on-board BeppoSAX

  • A.N. Parmar (a1), M. Bavdaz (a1), F. Favata (a1), T. Oosterbroek (a1), A. Orr (a1), A. Owens (a1), U. Lammers (a1) and D. Martin (a1)...

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SAX, an acronym for “Satellite Italiano per Astronomia a raggi X”, now renamed “BeppoSAX” in honor of Giuseppe Occhialini, is the first X-ray mission sensitive in the very broad energy range between 0.1 and 300 keV (Boella et al. 1997a). The Narrow Field Instruments (NFI) have approximately 1° fields of view and consist of the imaging low- and medium-energy concentrator spectrometers (LECS, 0.1-10 keV, Parmar et al. 1997; and MECS, 1-10 keV, Boella et al. 1997b), and the non-imaging high pressure gas scintillation proportional counter (HPGSPC, 3-120 keV, Manzo et al. 1997) and Phoswich detector system (PDS, 15-300 keV, Frontera et al. 1997). All the NFI are coaligned and are normally operated simultaneously. In addition, the payload includes two wide field cameras (WFC, 2-30 keV; Jager et al. 1997) which observe in directions perpendicular to the NFI. These allow the detection of X-ray transient phenomena, as well as long-term variability studies.

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References

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Boella, G., et al. (1997a) A&AS , 122, 299
Boella, G., et al. (1997b) A&AS , 122, 327
Favata, F., et al. (1997) A&A , 324, L41
Frontera, F., et al. (1997) A&AS , 122, 371
Jager, R., et al. (1997) A&AS , 125, 557
Lisse, C.M., et al. (1996) Science , 274, 205
Manzo, G., et al. (1997) A&AS , 122, 357
Orr, A., et al. (1997) A&A , 324, L77
Owens, A., et al. (1997) ApJ , in press
Parmar, A.N., et al. (1997) A&AS , 122, 309
Tanaka, Y., Inoue, H., and Holt, S.S. (1994) PASJ 46, L37
Trümper, J. (1983) Adv. Space Res. , 2, 241

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