205 citations · 713 across the 18 of their papers we have counts for
9 papers · 1 filter
Probing magnetars magnetosphere through X-ray polarization measurements
Roberto Taverna, Fabio Muleri, Roberto Turolla +3
The study of magnetars is of particular relevance since these objects are the only laboratories where the physics in ultra-strong magnetic fields can be directly tested. Until now,…
A variable absorption feature in the X-ray spectrum of a magnetar
Andrea Tiengo, Paolo Esposito, Sandro Mereghetti +9
Soft gamma-ray repeaters (SGRs) and anomalous X-ray pulsars (AXPs) are slowly rotating, isolated neutron stars that sporadically undergo episodes of long-term flux enhancement (out…
Pulse profiles from thermally emitting neutron stars
R. Turolla, L. Nobili
The problem of computing the pulse profiles from thermally emitting spots on the surface of a neutron star in general relativity is reconsidered. We show that it is possible to ext…
Modelling lightcurves and spectra of transient Anomalous X-ray Pulsars
S. Zane, A. Albano, R. Turolla +3
We present the first detailed joint modelling of both the timing and spectral properties during the outburst decay of transient anomalous X-ray pulsars. We consider the two sources…
The magnetar emission in the IR band: the role of magnetospheric currents
Silvia Zane, Luciano Nobili, Roberto Turolla
There is a general consensus about the fact that the magnetar scenario provides a convincing explanation for several of the observed properties of the Anomalous X-ray Pulsars and t…
Modeling the broadband persistent emission of magnetars
Silvia Zane, Roberto Turolla, Luciano Nobili +1
In this paper, we discuss our first attempts to model the broadband persistent emission of magnetars within a self consistent, physical scenario. We present the predictions of a sy…
An unified timing and spectral model for the Anomalous X-ray Pulsars XTE J1810-197 and CXOU J164710.2-455216
A. Albano, R. Turolla, G. L. Israel +3
Anomalous X-ray pulsars (AXPs) and soft gamma repeaters (SGRs) are two small classes of X-ray sources strongly suspected to host a magnetar, i.e. an ultra-magnetized neutron star w…
X-ray spectra from magnetar candidates - III. Fitting SGRs/AXPs soft X-ray emission with non-relativistic Monte Carlo models
S. Zane, N. Rea, R. Turolla +1
Within the magnetar scenario, the "twisted magnetosphere" model appears very promising in explaining the persistent X-ray emission from the Soft Gamma Repeaters and the Anomalous X…
Topology of magnetars external field. I. Axially symmetric fields
L. Pavan, R. Turolla, S. Zane +1
There is an increasing theoretical and observational evidence that the external magnetic field of magnetars may contain a toroidal component, likely of the same order of the poloid…