Study of Two BeppoSAX Observations of GX 340+0

Tiziana Di Salvo, Rosario Iaria, Natale Robba, Antonino D'Ai', Burderi, Stella, Giuseppe Lavagetto

Risultato della ricerca: Article

2 Citazioni (Scopus)

Abstract

We present the results of two BeppoSAX broad band (0.1-200 keV) observations of the Z-source GX 340+0 comparing our results to those of a previous observation of the source. From the color-color diagram we selected three zones and extracted the source energy spectrum from each zone. We find that the model, composed by a blackbody plus a Comptonized component, absorbed by an equivalent hydrogen column of similar to 6 x 10(22) cm(-2), well fits the spectra in the energy range below 30 keV. At higher energies a power law component with photon index of 2.5 is observed. The associated flux decreases going from the horizontal branch to the flaring branch of the Z-track.
Lingua originaleEnglish
pagine (da-a)257-261
Numero di pagine5
RivistaCHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS
Volume6
Stato di pubblicazionePublished - 2006

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All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

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