464 citations
- California Institute of TechnologyUS29 papers
- Goddard Space Flight CenterUS23 papers
- University of California, BerkeleyUS19 papers
- University of CambridgeGB19 papers
- European Space Astronomy CentreES15 papers
- Center for Astrophysics Harvard & SmithsonianUS14 papers
- Centre National de la Recherche ScientifiqueFR8 papers
- Max Planck Institute for Solar System ResearchDE8 papers
- National Institute for AstrophysicsIT8 papers
- Jet Propulsion LaboratoryUS7 papers
- University of SouthamptonGB7 papers
- University of TübingenDE7 papers
6 papers · 1 filter
5.9 keV Mn K-shell X-ray luminosity from the decay of 55Fe in Type Ia supernova models
I. R. Seitenzahl, A. Summa, F. Krauss +12
We show that the X-ray line flux of the Mn Kalpha line at 5.9 keV from the decay of 55Fe is a promising diagnostic to distinguish between Type Ia supernova (SN Ia) explosion models…
Optical counterparts of ROSAT X-ray sources in two selected fields at low vs. high Galactic latitudes
J. Greiner, G. A. Richter
The optical identification of large number of X-ray sources such as those from the ROSAT All-Sky Survey is challenging with conventional spectroscopic follow-up observations. We in…
The role of the reflection fraction in constraining black hole spin
T. Dauser, J. Garcia, M. L. Parker +2
In many active galaxies, the X-ray reflection features from the innermost regions of the accretion disc are relativistically distorted. This distortion allows us to measure paramet…
The NuSTAR spectrum of Mrk 335: Extreme relativistic effects within 2 gravitational radii of the event horizon?
M. L. Parker, D. R. Wilkins, A. C. Fabian +18
We present 3-50 keV NuSTAR observations of the AGN Mrk 335 in a very low flux state. The spectrum is dominated by very strong features at the energies of the iron line at 5-7 keV a…
A Clumpy Stellar Wind and Luminosity-Dependent Cyclotron Line Revealed by The First Suzaku Observation of the High-Mass X-ray Binary 4U 1538-522
Paul B. Hemphill, Richard E. Rothschild, Alex Markowitz +3
We present results from the first Suzaku observation of the high-mass X-ray binary 4U 1538-522. The broad-band spectral coverage of Suzaku allows for a detailed spectral analysis,…
The ZX-calculus is incomplete for quantum mechanics
Christian Schröder de Witt, Vladimir Zamdzhiev
We prove that the ZX-calculus is incomplete for quantum mechanics. We suggest the addition of a new 'color-swap' rule, of which currently no analytical formulation is known and whi…