76 citations · 471 across the 25 of their papers we have counts for
5 papers · 2 filters
Thin Disk Models of Anomalous X-ray Pulsars
K. Yavuz Ekşi, M. Ali Alpar
We discuss the options of the fall-back disk model of Anomalous X-Ray Pulsars (AXPs). We argue that the power-law index of the mass inflow rate during the propeller stage can be lo…
Can Thin Disks Produce Anomalous X-Ray Pulsars?
K. Yavuz Eksi, M. Ali Alpar
We investigate whether young neutron stars with fall-back disks can produce Anomalous X-Ray Pulsars (AXPs) within timescales indicated by the ages of associated supernova remnants.…
First hours of the GRB 030329 optical afterglow
R. A. Burenin, R. A. Sunyaev, M. N. Pavlinsky +12
We present the first results of the observations of the extremely bright optical afterglow of gamma-ray burst (GRB) 030329 with the 1.5m Russian-Turkish telescope RTT150 (TUBITAK N…
On the Enhanced X-ray Emission from SGR 1900+14 after the August 27 Giant Flare
Unal Ertan, M. Ali Alpar
We show that the giant flares of soft-gamma ray repeaters (E~10^44 ergs) can push the inner regions of a fall-back disk out to larger radii by radiation pressure, while matter rema…
Accretion Models for Young Neutron Stars
M. Ali Alpar
Interaction with possible fallback material, along with the magnetic fields and rotation rates at birth should determine the fates and categories of young neutron stars. This paper…