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- Publications
- Influence
An ultraluminous X-ray source powered by an accreting neutron star
- M. Bachetti, F. Harrison, +21 authors W. Zhang
- Physics, Medicine
- Nature
- 9 October 2014
The majority of ultraluminous X-ray sources are point sources that are spatially offset from the nuclei of nearby galaxies and whose X-ray luminosities exceed the theoretical maximum for spherical… Expand
The Astropy Project: Building an Open-science Project and Status of the v2.0 Core Package
- The Astropy Collaboration, A. Price-Whelan, +134 authors V. Zabalza
- Physics
- 8 January 2018
The Astropy Project supports and fosters the development of open-source and openly developed Python packages that provide commonly needed functionality to the astronomical community. A key element of… Expand
Calibration of the NuSTAR High-energy Focusing X-ray Telescope
- K. Madsen, F. Harrison, +19 authors W. Zhang
- Physics
- 7 April 2015
We present the calibration of the Nuclear Spectroscopic Telescope Array (NuSTAR) X-ray satellite. We used the Crab as the primary effective area calibrator and constructed a piece-wise linear spline… Expand
A Hard X-Ray Power-law Spectral Cutoff in Centaurus X-4
- D. Chakrabarty, J. Tomsick, +17 authors W. Zhang
- Physics
- 26 March 2014
The low-mass X-ray binary (LMXB) Cen X-4 is the brightest and closest (<1.2 kpc) quiescent neutron star transient. Previous 0.5-10 keV X-ray observations of Cen X-4 in quiescence identified two… Expand
NuSTAR SPECTROSCOPY OF GRS 1915+105: DISK REFLECTION, SPIN, AND CONNECTIONS TO JETS
- J. Miller, M. Parker, +26 authors Nasa Goddard Space Flight Center
- Physics
- 21 August 2013
We report on the results of spectral fits made to a NuSTAR observation of the black hole GRS 1915+105 in a "plateau" state. This state is of special interest because it is similar to the "low/hard"… Expand
TIMING AND FLUX EVOLUTION OF THE GALACTIC CENTER MAGNETAR SGR J1745–2900
- V. Kaspi, R. Archibald, +19 authors W. Zhang
- Physics
- 21 March 2014
We present the X-ray timing and spectral evolution of the Galactic Center magnetar SGR J1745−2900 for the first ~4 months post-discovery using data obtained with the Nuclear Spectroscopic Telescope… Expand
Magnetar-like activity from the central compact object in the SNR RCW103
- N. Rea, A. Borghese, +4 authors A. Luca
- Physics
- 14 July 2016
The 6.67 hr periodicity and the variable X-ray flux of the central compact object (CCO) at the center of the SNR RCW 103, named 1E 161348-5055, have been always difficult to interpret within the… Expand
The Ultraluminous X-Ray Sources NGC 1313 X-1 and X-2: A Broadband Study with NuSTAR and XMM-Newton
- M. Bachetti, V. Rana, +16 authors W. Zhang
- Physics
- 2 October 2013
We present the results of NuSTAR and XMM-Newton observations of the two ultraluminous X-ray sources: NGC 1313 X-1 and X-2. The combined spectral bandpass of the two satellites enables us to produce… Expand
A Potential Cyclotron Resonant Scattering Feature in the Ultraluminous X-Ray Source Pulsar NGC 300 ULX1 Seen by NuSTAR and XMM-Newton
- D. Walton, M. Bachetti, +14 authors N. Webb
- Physics
- 20 March 2018
Based on phase-resolved broadband spectroscopy using XMM-Newton and NuSTAR, we report on a potential cyclotron resonant scattering feature (CRSF) at E ~ 13 keV in the pulsed spectrum of the recently… Expand
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