Archivio istituzionale della ricerca dell'Università degli Studi di Palermo
IRIS è il sistema di gestione integrata dei dati della ricerca (persone, pubblicazioni, progetti, attività) adottato dall’Università di Palermo, e ha lo scopo di raccogliere, conservare, documentare, e diffondere ad accesso aperto le informazioni relative alla produzione scientifica degli autori afferenti all’Ateneo.
EnglishThe X-ray transient eclipsing source MXB 1659-298 went in outburst in 1999 and 2015, respectively, during which it was observed by XMM-Newton, NuSTAR and Swift. Using these observations we studied the broadband spectrum of the source to constrain the continuum components and to verify the presence of a reflection component. We analysed the soft and hard state of the source, finding that the soft state can be modelled with a thermal component associated with the inner accretion disc plus a Comptonised component. A smeared reflection component and the presence of an ionised absorber are also requested in the best-fit model. On the other hand, the direct continuum emission in the hard state can be described by a Comptonised component with a temperature larger than 150 keV. Also in this case a reflection component and a ionised absorber are observed.
Mazzola S.M., Iaria R., Gambino A.F., Marino A., Di Salvo T., Bassi T., et al. (2019). Broadband spectral analysis of MXB 1659-298 in its soft and hard state. MEMORIE DELLA SOCIETÀ ASTRONOMICA ITALIANA, 90(1-2), 96-99.
| Data di pubblicazione: | 2019 | |
| Titolo: | Broadband spectral analysis of MXB 1659-298 in its soft and hard state | |
| Autori: | ||
| Citazione: | Mazzola S.M., Iaria R., Gambino A.F., Marino A., Di Salvo T., Bassi T., et al. (2019). Broadband spectral analysis of MXB 1659-298 in its soft and hard state. MEMORIE DELLA SOCIETÀ ASTRONOMICA ITALIANA, 90(1-2), 96-99. | |
| Rivista: | ||
| Abstract: | The X-ray transient eclipsing source MXB 1659-298 went in outburst in 1999 and 2015, respectively, during which it was observed by XMM-Newton, NuSTAR and Swift. Using these observations we studied the broadband spectrum of the source to constrain the continuum components and to verify the presence of a reflection component. We analysed the soft and hard state of the source, finding that the soft state can be modelled with a thermal component associated with the inner accretion disc plus a Comptonised component. A smeared reflection component and the presence of an ionised absorber are also requested in the best-fit model. On the other hand, the direct continuum emission in the hard state can be described by a Comptonised component with a temperature larger than 150 keV. Also in this case a reflection component and a ionised absorber are observed. | |
| Nome del convegno: | 12th INTEGRAL Conference and 1st AHEAD Gamma-Ray Workshop: INTEGRAL Looks AHEAD to Multi-Messenger Astronomy | |
| Anno del convegno: | 2019 | |
| Luogo del convegno: | Geneva | |
| Appare nelle tipologie: | 1.07 Contributo in atti di convegno pubblicato in rivista |
File in questo prodotto:
| File | Descrizione | Tipologia | Licenza | |
|---|---|---|---|---|
| 1906.10960.pdf | Pre-print | Administrator Richiedi una copia |
Copyright © 2022