246 citations · 3.2k across the 73 of their papers we have counts for
47 papers · 1 filter
Hard X-ray/soft gamma-ray Characteristics of the Persistent Emission from Magnetars
L. Kuiper, P. R. den Hartog, W. Hermsen
In this paper the current status of high-energy research on the hard X-ray characteristics of the persistent emission from magnetars is reviewed. Focus is put on recent intriguing…
A parsec scale X-ray extended structure from the X-ray binary Circinus X-1
P. Soleri, S. Heinz, R. Fender +8
We present the results of the analysis of two Chandra observations of Circinus X-1 performed in 2007, for a total exposure time of ~50 ks. The source was observed with the High Res…
Detailed high-energy characteristics of AXP 4U 0142+61 - Multi-year observations with INTEGRAL, RXTE, XMM-Newton and ASCA
P. R. den Hartog, L. Kuiper, W. Hermsen +4
We present detailed spectral and temporal characteristics both in the hard X-ray (>10 keV) and soft X-ray (<10 keV) domains, obtained using data from INTEGRAL, XMM-Newton, ASCA and…
In Orbit Timing Calibration of the Hard X-Ray Detector on Board Suzaku
Yukikatsu Terada, Teruaki Enoto, Ryouhei Miyawaki +28
The hard X-ray detector (HXD) on board the X-ray satellite Suzaku is designed to have a good timing capability with a 61 s time resolution. In addition to detailed descriptions…
New Phase-coherent Measurements of Pulsar Braking Indices
Margaret A. Livingstone, Victoria M. Kaspi, Fotis P. Gavriil +3
Pulsar braking indices offer insight into the physics that underlies pulsar spin-down. Only five braking indices have been measured via phase-coherent timing; all measured values a…
The first multi-wavelength campaign of AXP 4U 0142+61 from radio to hard X-rays
P. R. den Hartog, L. Kuiper, W. Hermsen +5
For the first time a quasi-simultaneous multi-wavelength campaign has been performed on an Anomalous X-ray Pulsar from the radio to the hard X-ray band. 4U 0142+61 was an INTEGRAL…
Simultaneous INTEGRAL and RXTE observations of the accreting millisecond pulsar HETE J1900.1-2455
M. Falanga, J. Poutanen, E. W. Bonning +5
Aims: Hete J1900.1-2455 is the seventh known X-ray transient accreting millisecond pulsar and has been in outburst for more than one year. We compared the data on Hete J1900.1-2455…
INTEGRAL survey of the Cassiopeia region in hard X rays
P. R. den Hartog, W. Hermsen, L. Kuiper +3
We report on the results of a deep 1.6 Ms INTEGRAL observation of the Cassiopeia region performed from December 2003 to February 2004. Eleven sources were detected with the imager…
A Braking Index for the Young, High-Magnetic-Field, Rotation-Powered Pulsar in Kes 75
Margaret A. Livingstone, Victoria M. Kaspi, E. V. Gotthelf +1
We present the first phase-coherent measurement of a braking index for the young, energetic rotation-powered pulsar PSR J1846-0258. This 324 ms pulsar is located at the center of t…
INTEGRAL and RXTE observations of accreting millisecond pulsar IGR J00291+5934 in outburst
M. Falanga, L. Kuiper, J. Poutanen +7
Simultaneous observations of the accretion-powered millisecond pulsar IGR J00291+5934 by International Gamma-Ray Astrophysics Laboratory and Rossi X-ray Timing Explorer during the…
INTEGRAL spectroscopy of the accreting millisecond pulsar XTE J1807-294 in outburst
M. Falanga, J. M. Bonnet-Bidaud, J. Poutanen +6
The fourth transient accreting millisecond pulsar XTE J1807-294 was observed during its February/March 2003 outburst by INTEGRAL, partly simultaneously with the XMM-Newton and RXTE…
INTEGRAL observation of 3EG J1736-2908
G. Di Cocco, L. Foschini, P. Grandi +10
The possible identification by INTEGRAL of the EGRET source 3EG J1736-2908 with the active galactic nucleus GRS 1734-292 is discussed. The latter was discovered in 1990 and later i…
Discovery of hard non-thermal pulsed X-ray emission from the anomalous X-ray pulsar 1E 1841-045
L. Kuiper, W. Hermsen, M. Mendez
We report the discovery of non-thermal pulsed X-ray/soft gamma-ray emission up to about 150 keV from the anomalous X-ray pulsar AXP 1E 1841-045 located near the centre of supernova…
Study of Unidentified EGRET sources with INTEGRAL: first results and future prospects
G. Di Cocco, A. J. Castro-Tirado, S. Chaty +12
The primary objective of the study of unidentified EGRET sources with INTEGRAL is to locate with a few arcminute accuracy the hard X-ray / soft gamma-ray counterparts within the EG…
BeppoSAX observation of PSR B1937+21
L. Nicastro, G. Cusumano, O. Loehmer +5
We present the results of a BeppoSAX observation of the fastest rotating pulsar known: PSR B1937+21. The ~200 ks observation (78.5 ks MECS/34 ks LECS on-source time) allowed us to…
The phase of the radio and X-ray pulses of PSR B1937+21
G. Cusumano, W. Hermsen, M. Kramer +6
We present timing and spectral results of PSR B1937+21, the fastest known millisecond pulsar (P about 1.56 ms), observed with RXTE. The pulse profile, detected up to 20 keV, shows…
INTEGRAL timing and localization performance
R. Walter, P. Favre, P. Dubath +10
In this letter we report on the accuracy of the attitude, misalignment, orbit and time correlation which are used to perform scientific analyses of the INTEGRAL data. The boresight…
Absolute timing with IBIS, SPI and JEM-X aboard INTEGRAL
L. Kuiper, W. Hermsen, R. Walter +1
We have verified the absolute timing capabilities of the high-energy instruments aboard INTEGRAL, i.e. the imager IBIS, the spectrometer SPI and the X-ray monitor JEM-X. Calibratio…
Chandra and RXTE studies of the X-ray/gamma-ray millisecond pulsar PSR J0218+4232
L. Kuiper, W. Hermsen, B. Stappers
We report on high-resolution spatial and timing observations of the millisecond pulsar PSR J0218+4232 performed with the Chandra X-ray Observatory (CXO) and the Rossi X-ray Timing…
X/gamma-ray measurements of the faint GRB 020321
J. J. M. in 't Zand, L. Kuiper, J. Heise +10
GRB 020321 is a faint GRB that received wide follow-up attention in X-rays (BeppoSAX/NFI, Chandra/ACIS-S, XMM-Newton), radio (ATCA) and optical (ESO, HST). We identify a weak X-ray…
PSR B1929+10 Revisited in X-Rays
A. Wozna, L. Kuiper, W. Hermsen
This article has been withdrawn because it was submitted twice unintentionally.
Hard X-ray timing and spectral properties of PSR B0540-69
J. de Plaa, L. Kuiper, W. Hermsen
We report the hard X-ray properties of the young Crab-like LMC pulsar PSR B0540-69, using archival RXTE PCA (2 - 60 keV) and RXTE HEXTE (15 - 250 keV) data. Making use of the very…
The 2-10 keV emission properties of PSR B1937+21
L. Nicastro, G. Cusumano, L. Kuiper +3
We present the results of a BeppoSAX observation of the fastest pulsar known: PSR B1937+21. The ~ 200 ks observation (78.5 (34) ks MECS (LECS) exposure times) allowed us to investi…
Chandra and RXTE studies of X-ray/gamma-ray millisecond pulsar PSR J0218+4232: A clue to unidentified gamma-ray sources?
L. Kuiper, W. Hermsen
Millisecond pulsar PSR J0218+4232 shows remarkable high-energy properties: very hard pulsed X-ray emission up to ~10 keV and a likely detection of high-energy gamma-rays (> 100 MeV…