TY - JOUR
T1 - Search for Gravitational Wave Bursts from Six Magnetars
AU - Abadie, J.
AU - Bulten, H.J.
AU - Rabeling, D.S.
AU - van den Brand, J.F.J.
AU - Beker, M.G.
AU - Blom, M.R.
AU - Li, T.G.F.
AU - van der Putten, S.
PY - 2011
Y1 - 2011
N2 - Soft gamma repeaters (SGRs) and anomalous X-ray pulsars (AXPs) are thought to be magnetars: neutron stars powered by extreme magnetic fields. These rare objects are characterized by repeated and sometimes spectacular gamma-ray bursts. The burst mechanism might involve crustal fractures and excitation of non-radial modes which would emit gravitational waves (GWs). We present the results of a search for GW bursts from six galactic magnetars that is sensitive to neutron star f-modes, thought to be the most efficient GW emitting oscillatory modes in compact stars. One of them, SGR 0501+4516, is likely 1kpc from Earth, an order of magnitude closer than magnetars targeted in previous GW searches. A second, AXP 1E 1547.0-5408, gave a burst with an estimated isotropic energy >10
AB - Soft gamma repeaters (SGRs) and anomalous X-ray pulsars (AXPs) are thought to be magnetars: neutron stars powered by extreme magnetic fields. These rare objects are characterized by repeated and sometimes spectacular gamma-ray bursts. The burst mechanism might involve crustal fractures and excitation of non-radial modes which would emit gravitational waves (GWs). We present the results of a search for GW bursts from six galactic magnetars that is sensitive to neutron star f-modes, thought to be the most efficient GW emitting oscillatory modes in compact stars. One of them, SGR 0501+4516, is likely 1kpc from Earth, an order of magnitude closer than magnetars targeted in previous GW searches. A second, AXP 1E 1547.0-5408, gave a burst with an estimated isotropic energy >10
U2 - 10.1088/2041-8205/734/2/L35
DO - 10.1088/2041-8205/734/2/L35
M3 - Article
SN - 2041-8205
VL - 734
SP - L35
JO - Astrophysical Journal Letters
JF - Astrophysical Journal Letters
IS - 2
ER -