SIMBAD references

1997A&A...325..212M - Astronomy and Astrophysics, volume 325, 212-216 (1997/9-1)

Pulse phase spectroscopy of A 0535+26 during its 1994 giant outburst observed with OSSE.

MAISACK M., GROVE J.E., KENDZIORRA E., KRETSCHMAR P., STAUBERT R. and STRICKMAN M.S.

Abstract (from CDS):

We present pulse phase spectroscopy of A 0535+26 in the energy range 35-200keV from OSSE observations of its giant outburst in 1994. We discuss the phase dependence of the continuum parameters and the cyclotron resonance feature (CRF) at 110keV already found in the phase averaged spectrum. We find that a CRF is required at every phase. The behaviour of the line parameters with phase and the pulse shape indicate that the emission occurs in a pencil-beam geometry.

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Journal keyword(s): stars: magnetic fields - stars: neutron - gamma-rays: observations

Simbad objects: 4

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