53 citations · 135 across the 13 of their papers we have counts for
13 papers
X-ray grating spectroscopy as a mission enhancement
Hans Moritz Guenther, Ehud Behar, Joel N. Bregman +27
We propose to add instruments to any potential future X-ray mission with focussing optics that is considered in NASA's ASTRA framework. Such an instrument is a necessity to study A…
Concept of a Double Tilted Rowland Spectrograph for X-rays
Hans Moritz Günther, Casey T. DeRoo, Ralf K. Heilmann +1
High-resolution spectroscopy in soft X-rays ( keV) requires diffractive elements to resolve any astrophysically relevant diagnostics, such as closely spaced lines, weak absorpt…
Arcus X-ray telescope performance and alignment
Hans Moritz Günther, Peter Cheimets, Eric D. Miller +4
Arcus is a concept for a probe class mission to deliver high-resolution FUV and X-ray spectroscopy. For X-rays, it combines cost-effective silicon pore optics (SPO) with high-throu…
X-ray performance of critical-angle transmission grating prototypes for the Arcus mission
Ralf K. Heilmann, Alexander R. Bruccoleri, Vadim Burwitz +12
Arcus is a proposed soft x-ray grating spectrometer Explorer. It aims to explore cosmic feedback by mapping hot gases within and between galaxies and galaxy clusters and characteri…
Searching for outliers in the Chandra Source Catalog
Dustin K. Swarm, Casey T. DeRoo, Yanan Liu +1
Astronomers are increasingly faced with a deluge of information, and finding worthwhile targets of study in the sea of data can be difficult. Outlier identification studies are a m…
Metrology for Measuring Custom Periodicities on Diffraction Gratings
Ningxiao Zhang, Randall McEntaffer, Ross McCurdy +1
We present a new, inexpensive, bench-top method for measuring groove period over large areas with high mapping resolution and high measurement accuracy, dubbed the grating mapper f…
Soft x-ray detection for small satellites with a commercial CMOS sensor at room temperature
Steve Tammes, Tyler Roth, Philip Kaaret +4
Recently CMOS (complementary metal-oxide semiconductor) sensors have progressed to a point where they may offer improved performance in imaging x-ray detection compared to the CCDs…
Performance Testing of a Large-Format Reflection Grating Prototype for a Suborbital Rocket Payload
Benjamin D. Donovan, Randall L. McEntaffer, Casey T. DeRoo +8
The soft X-ray grating spectrometer on board the Off-plane Grating Rocket Experiment (OGRE) hopes to achieve the highest resolution soft X-ray spectrum of an astrophysical object w…
Limiting Spectral Resolution of a Reflection Grating Made via Electron-Beam Lithography
Casey T. DeRoo, Jared Termini, Fabien Grise +3
Gratings enable dispersive spectroscopy from the X-ray to the optical, and feature prominently in proposed flagships and SmallSats alike. The exacting performance requirements of t…
Line Spread Functions of Blazed Off-Plane Gratings Operated in the Littrow Mounting
Casey T. DeRoo, Randall L. McEntaffer, Drew M. Miles +13
Future soft X-ray (10 - 50 Angstrom) spectroscopy missions require higher effective areas and resolutions to perform critical science that cannot be done by instruments on current…
Performance Testing of a Novel Off-plane Reflection Grating and Silicon Pore Optic Spectrograph at PANTER
Hannah Marlowe, Randall L. McEntaffer, Ryan Allured +12
An X-ray spectrograph consisting of radially ruled off-plane reflection gratings and silicon pore optics was tested at the Max Planck Institute for extraterrestrial Physics PANTER…
First results from a next-generation off-plane X-ray diffraction grating
Randall McEntaffer, Casey DeRoo, Ted Schultz +13
Future NASA X-ray spectroscopy missions will require high throughput, high resolution grating spectrometers. Off-plane reflection gratings are capable of meeting the performance re…
On the Origins of the High-Latitude H-alpha Background
A. N. Witt, B. Gold, F. S. Barnes +3
The diffuse high-latitude H-alpha background is widely believed to be predominantly the result of in-situ recombination of ionized hydrogen in the warm interstellar medium of the G…