Science Archives Publication System

COS-B Observations of Galactic Gamma-Ray Emission (Large Scale)

Bibcode: 1977ICRC....1....1P

Bignami, G. F.; Hermsen, W.; Lebrun, F. +10 more

Most of the reqions of the sky already observed by COS-B contain part of the galactic disc. Detailed analysis has been completed of the data from many of these observation periods. In several cases a manual scanning, effective in removinq the background events has been incorporated in the processing sequence. The data collected during most of thes…

1977 • International Cosmic Ray Conference

COS-B 0

COS-B observations of long term variability and absorption phenomena in the X-ray emission from Cen X-3.

Bibcode: 1976A&A....51..475B

Bignami, G. F.; Molteni, D.; Hermsen, W. +12 more

Summary: The CO S-B satellite has observed the X-ray source Cen X-3 in the energy range 2 to 12 keV between 1975 Decenber 24 and 1976 January 23. Preliminary results based on about 10% of the data from the X-ray detector indicate that the source increased in emission during this period reaching a broad maximum around January 8. The three entrances…

1976 • Astronomy and Astrophysics

COS-B 8

COS-B observation of high-energy gamma radiation from the Vela region.

Bibcode: 1976A&A....50..157B

Bignami, G. F.; Hermsen, W.; Boella, G. +11 more

Summary. Preliminary results from the ESA gamma-ray astronomy satellite COS-B are presented for the region of the Vela supernova remnant. From an analysis of about 20 % of the collected data an enhancement of the radiation above about 100 MeV is observed in a 30x30 bin containing PSR. The enhancement is still present for gamma-ray energies above a…

1976 • Astronomy and Astrophysics

COS-B 4

The Ability of Cos-B to Measure Gamma-Ray Bursts

DOI: 10.1007/BF00645532 Bibcode: 1976Ap&SS..42..103B

Boella, G.; Gorisse, M.; Taylor, B. G. +2 more

The COS-B satellite for gamma-ray astronomy, launched on 7 August, 1975, features as part of the main instrument a 1.1 m², 10 mm thick, plastic scintillator for the vetoing of charged particle events. This detector which has an average effective area of 360 cm² for gamma rays in the interval 0.1 to 1 MeV has been instrumented…

1976 • Astrophysics and Space Science

COS-B 1

Relevance of the feature ``cluster number'' in a non-parametric method for the automatic selection of high energy gamma-ray events in spark chambers

DOI: 10.1016/0029-554X(76)90874-0 Bibcode: 1976NucIM.133..179B

Buccheri, Rosolino; Di Gesù, Vito; Salemi, Sergio

An "ad hoc" feature is defined to improve the efficiency of non-parametric methods. The results obtained on the analysis of events detected by the COS-B satellite wire spark chamber are reported.

1976 • Nuclear Instruments and Methods

COS-B 0

The COS-B experiment for gamma-ray astronomy.

Bibcode: 1975SSI.....1..245B

Bignami, G. F.; Boella, G.; Mayer-Hasselwander, H. A. +9 more

The COS-B satellite will carry a single large experiment, capable of detecting gamma-rays with energies in excess of 20 MeV in order to study in detail the sources of extraterrestrial gamma radiation. The principal objectives of the study will be to investigate the angular structure of gamma-ray emission from the galactic plane, to measure the flu…

1975 • Space Science Instrumentation

COS-B 77

The capability of COS-B to measure cosmic gamma ray bursts.

Bibcode: 1975SSI.....1..269B

Boella, G.; Gorisse, M.; Taylor, B. G. +2 more

The COS-B experiment for gamma ray astronomy features a large area plastic scintillator, 1 cm thick, for the detection and rejection of charged particles entering the experiment. Tests with radioactive sources have confirmed that the effective area of this detector is several hundred square centimeters for the detection of gamma rays of energy gre…

1975 • Space Science Instrumentation

COS-B 0