1996A&AS..120C.175K

Query : 1996A&AS..120C.175K

1996A&AS..120C.175K - Astron. Astrophys., Suppl. Ser., 120C, 175-178 (1996/December-3)

Absorption features in the hard X-ray spectra of PSR A 0535+26 and Vela X-1.

KRETSCHMAR P., PAN H.C., KENDZIORRA E., KUNZ M., MAISACK M., STAUBERT R., PIETSCH W., TRUEMPER J., EFREMOV V. and SUNYAEV R.

Abstract (from CDS):

We present the results of broad band (2-200keV), pulse-phase-resolved spectral analysis of A0535+26 and Vela X-1, observed by the instruments HEXE and TTM on Mir-KVANT. Both sources show a double peaked pulse profile at energies >10keV with pulses distinctly different in shape. Convincing evidence for cyclotron absorption features has been found for A0535+26, similar features - though less significant - are also found in the Vela X-1 spectra. For both sources these features are pulse phase dependent and occur especially strong in the pulse getting more prominent with increasing energy.

Abstract Copyright: ∼

Journal keyword(s): pulsars: individual: PSR A 0535+26 (AO 0535+26) - pulsars: individual: Vela X-1 - stars: magnetic fields - X-rays: stars

CDS comments: Special Issue "3rd Compton Symposium"

Simbad objects: 2

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Number of rows : 2
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 HD 245770 HXB 05 38 54.5748918624 +26 18 56.836952784 9.30 9.84 9.39 8.77 8.30 O9/B0III/Ve 1045 0
2 V* GP Vel HXB 09 02 06.8608812864 -40 33 16.899168060 6.85 7.37 6.87 6.31 6.05 B0.5Ia 1588 0

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