2013A&A...550A...5E


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.03CEST23:13:14

2013A&A...550A...5E - Astronomy and Astrophysics, volume 550A, 5-5 (2013/2-1)

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

EGRON E., DI SALVO T., MOTTA S., BURDERI L., PAPITTO A., DURO R., D'AI A., RIGGIO A., BELLONI T., IARIA R., ROBBA N.R., PIRAINO S. and SANTANGELO A.

Abstract (from CDS):

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 (0.1-200keV) 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.

Abstract Copyright:

Journal keyword(s): line: formation - line: identification - stars: neutron - stars: individual: 4U 1705-44 - X-rays: binaries - X-rays: general

Simbad objects: 6

goto Full paper

goto View the reference in ADS

Number of rows : 6

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 4U 1642-45 LXB 16 45 47.7 -45 36 40           ~ 379 1
2 V* V1101 Sco LXB 17 05 44.4915929414 -36 25 23.049863107   20.10 18.6     ~ 406 0
3 4U 1705-44 LXB 17 08 54.470 -44 06 07.35           ~ 355 0
4 X Sgr X-1 LXB 17 47 56.0 -26 33 49           ~ 346 0
5 V* V1341 Cyg LXB 21 44 41.1544523872 +38 19 17.065856122 15.00 15.13 14.68 15.00   A9III 1070 1
6 NAME Galactic Ridge ? ~ ~           ~ 427 1

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2013A&A...550A...5E and select 'bookmark this link' or equivalent in the popup menu


2020.07.03-23:13:14

© Université de Strasbourg/CNRS

    • Contact