TY - JOUR
T1 - The supergiant fast X-ray transient IGR J18483-0311 in quiescence
T2 - XMM-Newton, Swift and Chandra observations
AU - Giunta, A.
AU - Bozzo, E.
AU - Bernardini, F.
AU - Israel, G.
AU - Stella, L.
AU - Falanga, M.
AU - Campana, S.
AU - Bazzano, A.
AU - Dean, A. J.
AU - Mendez, M.
PY - 2009/10
Y1 - 2009/10
N2 - IGR J18483-0311 was discovered with INTEGRAL in 2003 and later classified as a supergiant fast X-ray transient. It was observed in outburst many times, but its quiescent state is still poorly known. Here, we present the results of XMM-Newton, Swift and Chandra observations of IGR J18483-0311. These data improved the X-ray position of the source, and provided new information on the timing and spectral properties of IGR J18483-0311 in quiescence. We report the detection of pulsations in the quiescent X-ray emission of this source, and give for the first time a measurement of the spin-period derivative of this source. In IGR J18483-0311, the measured spin-period derivative of -(1.3 ± 0.3) × 10-9 s s-1 likely results from light travel time effects in the binary. We compare the most recent observational results of IGR J18483-0311 and SAX J1818.6-1703, the two supergiant fast X-ray transients for which a similar orbital period has been measured.
AB - IGR J18483-0311 was discovered with INTEGRAL in 2003 and later classified as a supergiant fast X-ray transient. It was observed in outburst many times, but its quiescent state is still poorly known. Here, we present the results of XMM-Newton, Swift and Chandra observations of IGR J18483-0311. These data improved the X-ray position of the source, and provided new information on the timing and spectral properties of IGR J18483-0311 in quiescence. We report the detection of pulsations in the quiescent X-ray emission of this source, and give for the first time a measurement of the spin-period derivative of this source. In IGR J18483-0311, the measured spin-period derivative of -(1.3 ± 0.3) × 10-9 s s-1 likely results from light travel time effects in the binary. We compare the most recent observational results of IGR J18483-0311 and SAX J1818.6-1703, the two supergiant fast X-ray transients for which a similar orbital period has been measured.
KW - Stars: Individual: IGR J18483-0311
KW - Stars: Individual: SAX J1818.6-1703
KW - Stars: Neutron
KW - X-rays: Binaries
KW - X-rays: Stars
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U2 - 10.1111/j.1365-2966.2009.15174.x
DO - 10.1111/j.1365-2966.2009.15174.x
M3 - Article
AN - SCOPUS:70349885366
SN - 0035-8711
VL - 399
SP - 744
EP - 749
JO - Monthly Notices of the Royal Astronomical Society
JF - Monthly Notices of the Royal Astronomical Society
IS - 2
ER -