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Titolo:
Rossi X-Ray Timing Explorer observations of the eastern lobe of W50 associated with SS 433
Autore:
Safi-Harb, S; Petre, R;
Indirizzi:
NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA NASA Greenbelt MDUSA 20771 ard Space Flight Ctr, Greenbelt, MD 20771 USA
Titolo Testata:
ASTROPHYSICAL JOURNAL
fascicolo: 2, volume: 512, anno: 1999,
parte:, 1
pagine: 784 - 792
SICI:
0004-637X(19990220)512:2<784:RXTEOO>2.0.ZU;2-R
Fonte:
ISI
Lingua:
ENG
Soggetto:
SUPERNOVA REMNANT; GINGA OBSERVATIONS; SS-433; SS433; ACCELERATION; SPECTRUM; JETS;
Keywords:
ISM : individual (W50); stars : individual (SS 433); supernova remnants; X-rays : stars;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
31
Recensione:
Indirizzi per estratti:
Indirizzo: Safi-Harb, S NASA, Goddard Space Flight Ctr, Code 662,Bldg 2, Greenbelt, MD 20771 USA NASA Code 662,Bldg 2 Greenbelt MD USA 20771 elt, MD 20771 USA
Citazione:
S. Safi-Harb e R. Petre, "Rossi X-Ray Timing Explorer observations of the eastern lobe of W50 associated with SS 433", ASTROPHYS J, 512(2), 1999, pp. 784-792

Abstract

We present the Rossi X-Ray Timing Explorer (RXTE) observations of the SNR W50, associated with SS 433. The observations cover the X-ray lobe found between SS 433 and the outer eastern radio "ear" of W50. The X-ray spectrum measured with the proportional counter array and the High-Energy Timing Experiment in the 3-100 keV range favors nonthermal over thermal models for this part of W50. We combine the RXTE spectrum with the ROSAT and ASCA spectra, thus covering similar to 3 orders of magnitude in energy. The spectrum ofthe harder X-ray emission is well represented by a power law with a photonindex of similar to 1.45 and a total X-ray luminosity of similar to 1.5 x 10(35) ergs s(-1) for a source distance of 5.5 kpc. We thus confirm the nonthermal nature of the inner X-ray lobe. We discuss its implications in the context of the interaction between the jets from SS 433 and the surroundings.

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Documento generato il 30/11/20 alle ore 15:43:44