TY - ICOMM
T1 - XTE J1701-407 INTEGRAL and Swift observations
AU - Soldi, S.
AU - Beckmann, V.
AU - Eckert, D.
AU - Ferrigno, C.
AU - Belanger, G.
AU - Kuulkers, E.
AU - Caballero-Garcia, M.D.
AU - Chenevez, J.
AU - Falanga, M.
AU - Prat, L.
AU - Leyder, J.-C.
AU - Miller, J.M.
AU - Piraino, S.
AU - Pottschmidt, K.
AU - Sidoli, L.
AU - Bazzano, A.
AU - Natalucci, L.
AU - Ubertini, P.
AU - Watanabe, K.
PY - 2008/10/20
Y1 - 2008/10/20
N2 - INTEGRAL has observed the Galactic center region starting September 18, 2008 through a long key program (KP) and several ToO observations of H1743-322. In the course of these observations, the neutron star LMXB XTE J1701-407 (Markwardt et al. 2008, ATel #1569 and ATel #1616, ATel #1621) has been detected by IBIS/ISGRI in the 20-80 keV band. The source was always outside the field of view of the X-ray monitor JEM-X.
In the latest observation, the source was also detected in the 40-80 keV band with 14 ± 2 mCrab. Simultaneous to this observation a Swift ToO was performed, starting at 2008-10-18T14:27 with an on-source time of 1.7 ksec. The combined spectrum of Swift/XRT and IBIS/ISGRI (33 ksec) can be represented by an absorbed power law with intrinsic NH = 2.2e22 1/cm^2 and photon index 2.1 ± 0.1. The model flux in the 2-50 keV band is 3e-10 erg/cm^2/sec. Assuming a maximum distance of 6 kpc (Linares et al. 2008), this results in a luminosity of L(2-50 keV) = 1.3e+36 erg/sec.
INTEGRAL will continue to observe the Galactic center region over the next revolutions. The data of the INTEGRAL ToO observations of H1743-322 are public.
AB - INTEGRAL has observed the Galactic center region starting September 18, 2008 through a long key program (KP) and several ToO observations of H1743-322. In the course of these observations, the neutron star LMXB XTE J1701-407 (Markwardt et al. 2008, ATel #1569 and ATel #1616, ATel #1621) has been detected by IBIS/ISGRI in the 20-80 keV band. The source was always outside the field of view of the X-ray monitor JEM-X.
In the latest observation, the source was also detected in the 40-80 keV band with 14 ± 2 mCrab. Simultaneous to this observation a Swift ToO was performed, starting at 2008-10-18T14:27 with an on-source time of 1.7 ksec. The combined spectrum of Swift/XRT and IBIS/ISGRI (33 ksec) can be represented by an absorbed power law with intrinsic NH = 2.2e22 1/cm^2 and photon index 2.1 ± 0.1. The model flux in the 2-50 keV band is 3e-10 erg/cm^2/sec. Assuming a maximum distance of 6 kpc (Linares et al. 2008), this results in a luminosity of L(2-50 keV) = 1.3e+36 erg/sec.
INTEGRAL will continue to observe the Galactic center region over the next revolutions. The data of the INTEGRAL ToO observations of H1743-322 are public.
M3 - Net publication - Internet publication
T3 - The Astronomer's telegram
ER -