Publications (11)
Evidence for simultaneous jets and disk winds in luminous low-mass X-ray binaries
Jeroen Homan, Joseph Neilsen, Jessamyn L. Allen +5
Recent work on jets and disk winds in low-mass X-ray binaries (LMXBs) suggests that they are to a large extent mutually exclusive, with jets observed in spectrally hard states and…
XMM-Newton observations of PSR B1823-13: An asymmetric synchrotron nebula around a Vela-like pulsar
Bryan Gaensler, Norbert Schulz, Vicky Kaspi +2
We present a deep observation with the X-ray Multi-Mirror Mission of PSR B1823-13, a young pulsar with similar properties to the Vela pulsar. We detect two components to the X-ray…
Revealing the state transition of Cen X-3 at high spectral resolution with Chandra
Graciela Sanjurjo-FerrÃn, Jose Miguel Torrejón, Lida Oskinova +4
Cen X-3 is a compact, high-mass X-ray binary (HMXRB), likely powered by Roche lobe overflow. We present a phase-resolved X-ray spectral and timing analysis of a target of opportuni…
Astro 2020: Astromineralogy of interstellar dust with X-ray spectroscopy
Lia Corrales, Lynne Valencic, Elisa Costantini +16
X-ray absorption fine structure (XAFS) in the 0.2-2 keV band is a crucial component in multi-wavelength studies of dust mineralogy, size, and shape -- parameters that are necessary…
Chandra Detection of Fe XVII in Absorption: Iron Abundance in the Hot Gaseous Interstellar Medium
Yangsen Yao, Norbert Schulz, Q. Daniel Wang +1
The iron depletion level and the gas-phase iron abundance in the hot ~10^6 K interstellar medium (ISM) is critical to the understanding of its energy balance as well as the thermal…
Star Formation in the Era of the Three Great Observatories
Scott J. Wolk, Norbert Schulz, John Stauffer +6
This paper summarizes contributions and suggestions as presented at the Chandra Workshop Star Formation in the Era of Three Great Observatories conducted in July 2005. One of the d…
Suzaku Observations of 4U 1957+11: Potentially the Most Rapidly Spinning Black Hole in (the Halo of) the Galaxy
Michael A. Nowak, Joern Wilms, Katja Pottschmidt +3
We present three Suzaku observations of the black hole candidate 4U 1957+11 (V1408 Aql) --- a source that exhibits some of the simplest and cleanest examples of soft, disk-dominate…
Cyclical accretion regime change in the slow X-ray pulsar 4U 0114+65 observed with Chandra
Graciela Sanjurjo-FerrÃn, Jose Miguel Torrejón, Konstantin Postnov +5
4U 0114+65 is a high-mass X-ray binary system formed by the luminous supergiant B1Ia, known as V{*} V662 Cas, and one of the slowest rotating neutron stars (NS) with a spin period…
Broad-Band Soft X-ray Polarimetry
Herman L. Marshall, Ralf Heilmann, Norbert Schulz +1
We developed an instrument design capable of measuring linear X-ray polarization over a broad-band using conventional spectroscopic optics. A set of multilayer-coated flats reflect…
A persistent disk wind and variable jet outflow in the neutron-star low-mass X-ray binary GX 13+1
Daniele Rogantini, Jeroen Homan, Richard M. Plotkin +6
In low-mass X-ray binaries (LMXBs), accretion flows are often associated with either jet outflows or disk winds. Studies of LMXBs with luminosities up to roughly 20% of the Eddingt…
Connecting dust and outflows in AGN: the intriguing case of NGC 6860
Ioanna Psaradaki, Missagh Mehdipour, Daniele Rogantini +4
Cosmic dust plays a crucial role in the evolution of galaxies, significantly influencing star formation and the interstellar medium. However, in active galactic nuclei (AGN), the r…