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Astron. Astrophys. 331, L77-L79 (1998)

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Letter to the Editor

Discovery of X-rays from the composite supernova remnant G0.9+0.1 with the BeppoSAX satellite

S. Mereghetti 1, L. Sidoli 1, 2 and G.L. Israel 3, 4

1 Istituto di Fisica Cosmica del C.N.R., Via Bassini 15, I-20133 Milano, Italy (e-mail: sandro,sidoli@ifctr.mi.cnr.it)
2 Dipartimento di Fisica, Università di Milano, Via Celoria 16, I-20133 Milano, Italy
3 Osservatorio Astronomico di Roma, Via dell'Osservatorio 2, I-00040 Monteporzio Catone (Roma), Italy
4 Affiliated to I.C.R.A.

Received 23 September 1997 / Accepted 24 October 1997


Using the BeppoSAX satellite we have obtained the first secure X-ray detection of the supernova remnant G0.9+0.1. The 1-10 keV spectrum can be described with an absorbed power law with [FORMULA] 3 and [FORMULA]  cm-2. The high column density supports a distance similar to that of the Galactic Center. The X-ray emission, with a luminosity [FORMULA] erg s-1, coincides with the central radio core, confirming the composite nature of this remnant. Though a search for periodic pulsations gave a negative result, the observed X-rays are probably related to the presence of a young radio pulsar at the center of G0.9+0.1.

Key words: ISM: supernova remnants: individual: G0.9+0.1 – X-rays

© European Southern Observatory (ESO) 1998

Online publication: March 3, 1998