Testing reflection features in 4U 1705-44 with XMM-Newton, BeppoSAX, and RXTE in the hard and soft states

Rosario Iaria, Antonino D'Ai', Tiziana Di Salvo, Duro, Riggio, Motta, Egron, Andrea Santangelo, Belloni, Duro, Piraino, Burderi, Papitto

Risultato della ricerca: Article

28 Citazioni (Scopus)

Abstract

We use data from the bright atoll source 4U 1705-44 taken with XMM-Newton, BeppoSAX, and RXTE both in the hard and in the soft state to perform a self-consistent study of the reflection component in this source. Although the data from these X-ray observatories are not simultaneous, the spectral decomposition is shown to be consistent among the different observations, when the source flux is similar. We have therefore selected observations performed at similar flux levels in the hard and soft states to study the spectral shape in these two states in a broad-band (0.1-200 keV) energy range, with good energy resolution, and using self-consistent reflection models. These reflection models provide a good fit for the X-ray spectrum both in the hard and in the soft state in the whole spectral range. We discuss the differences in the main spectral parameters we find in both states, providing evidence that the inner radius of the optically thick disk slightly recedes in the hard state.
Lingua originaleEnglish
pagine (da-a)5-
Numero di pagine18
RivistaASTRONOMY & ASTROPHYSICS
Volume550
Stato di pubblicazionePublished - 2013

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X Ray Timing Explorer
XMM-Newton telescope
newton
atoll
energy
observatory
decomposition
observatories
x rays
broadband
radii
parameter

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cita questo

Testing reflection features in 4U 1705-44 with XMM-Newton, BeppoSAX, and RXTE in the hard and soft states. / Iaria, Rosario; D'Ai', Antonino; Di Salvo, Tiziana; Duro; Riggio; Motta; Egron; Santangelo, Andrea; Belloni; Duro; Piraino; Burderi; Papitto.

In: ASTRONOMY & ASTROPHYSICS, Vol. 550, 2013, pag. 5-.

Risultato della ricerca: Article

Iaria, R, D'Ai', A, Di Salvo, T, Duro, Riggio, Motta, Egron, Santangelo, A, Belloni, Duro, Piraino, Burderi & Papitto 2013, 'Testing reflection features in 4U 1705-44 with XMM-Newton, BeppoSAX, and RXTE in the hard and soft states', ASTRONOMY & ASTROPHYSICS, vol. 550, pagg. 5-.
Iaria, Rosario ; D'Ai', Antonino ; Di Salvo, Tiziana ; Duro ; Riggio ; Motta ; Egron ; Santangelo, Andrea ; Belloni ; Duro ; Piraino ; Burderi ; Papitto. / Testing reflection features in 4U 1705-44 with XMM-Newton, BeppoSAX, and RXTE in the hard and soft states. In: ASTRONOMY & ASTROPHYSICS. 2013 ; Vol. 550. pagg. 5-.
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title = "Testing reflection features in 4U 1705-44 with XMM-Newton, BeppoSAX, and RXTE in the hard and soft states",
abstract = "We use data from the bright atoll source 4U 1705-44 taken with XMM-Newton, BeppoSAX, and RXTE both in the hard and in the soft state to perform a self-consistent study of the reflection component in this source. Although the data from these X-ray observatories are not simultaneous, the spectral decomposition is shown to be consistent among the different observations, when the source flux is similar. We have therefore selected observations performed at similar flux levels in the hard and soft states to study the spectral shape in these two states in a broad-band (0.1-200 keV) energy range, with good energy resolution, and using self-consistent reflection models. These reflection models provide a good fit for the X-ray spectrum both in the hard and in the soft state in the whole spectral range. We discuss the differences in the main spectral parameters we find in both states, providing evidence that the inner radius of the optically thick disk slightly recedes in the hard state.",
author = "Rosario Iaria and Antonino D'Ai' and {Di Salvo}, Tiziana and Duro and Riggio and Motta and Egron and Andrea Santangelo and Belloni and Duro and Piraino and Burderi and Papitto",
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TY - JOUR

T1 - Testing reflection features in 4U 1705-44 with XMM-Newton, BeppoSAX, and RXTE in the hard and soft states

AU - Iaria, Rosario

AU - D'Ai', Antonino

AU - Di Salvo, Tiziana

AU - Duro, null

AU - Riggio, null

AU - Motta, null

AU - Egron, null

AU - Santangelo, Andrea

AU - Belloni, null

AU - Duro, null

AU - Piraino, null

AU - Burderi, null

AU - Papitto, null

PY - 2013

Y1 - 2013

N2 - We use data from the bright atoll source 4U 1705-44 taken with XMM-Newton, BeppoSAX, and RXTE both in the hard and in the soft state to perform a self-consistent study of the reflection component in this source. Although the data from these X-ray observatories are not simultaneous, the spectral decomposition is shown to be consistent among the different observations, when the source flux is similar. We have therefore selected observations performed at similar flux levels in the hard and soft states to study the spectral shape in these two states in a broad-band (0.1-200 keV) energy range, with good energy resolution, and using self-consistent reflection models. These reflection models provide a good fit for the X-ray spectrum both in the hard and in the soft state in the whole spectral range. We discuss the differences in the main spectral parameters we find in both states, providing evidence that the inner radius of the optically thick disk slightly recedes in the hard state.

AB - We use data from the bright atoll source 4U 1705-44 taken with XMM-Newton, BeppoSAX, and RXTE both in the hard and in the soft state to perform a self-consistent study of the reflection component in this source. Although the data from these X-ray observatories are not simultaneous, the spectral decomposition is shown to be consistent among the different observations, when the source flux is similar. We have therefore selected observations performed at similar flux levels in the hard and soft states to study the spectral shape in these two states in a broad-band (0.1-200 keV) energy range, with good energy resolution, and using self-consistent reflection models. These reflection models provide a good fit for the X-ray spectrum both in the hard and in the soft state in the whole spectral range. We discuss the differences in the main spectral parameters we find in both states, providing evidence that the inner radius of the optically thick disk slightly recedes in the hard state.

UR - http://hdl.handle.net/10447/73488

UR - http://adsabs.harvard.edu/abs/2013A%26A...550A...5E

M3 - Article

VL - 550

SP - 5-

JO - ASTRONOMY & ASTROPHYSICS

JF - ASTRONOMY & ASTROPHYSICS

SN - 0004-6361

ER -