21 citations · 27 across the 13 of their papers we have counts for
14 papers
Twenty-five years of XMM-Newton EPIC-MOS2 Unfocused Particle Background: Solar Cycle Modulation, Galactic Cosmic-Ray Correlation, and Implications for NewAthena
B. Vaia, F. Gastaldello, S. Molendi +13
We present a study of the unfocused particle-induced background measured by the XMM-Newton EPIC-MOS2 detector, extending previous analyses to the end of 2025 and covering approxima…
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…
High-statistics simulations of NewAthena WFI background using Geant4
Matthew K. Heine, Catherine E. Grant, Marshall W. Bautz +14
The observation of hot gas structures is one science goal of the Wide Field Imager (WFI) on ESA's NewAthena X-ray observatory. Because the measurement of these faint diffuse source…
XRISM Observations of Abell 1795: Evidence for Low Turbulence and Resonant Scattering
Arnab Sarkar, Eric D. Miller, Brian McNamara +10
We present high-resolution X-ray spectroscopic observations of the cool-core galaxy cluster Abell~1795 obtained with XRISM/Resolve. The cluster was observed with two deep pointings…
Constraints on Non-Thermal Pressure at galaxy cluster outskirts from a Joint SPT and XMM-Newton Analysis
Arnab Sarkar, Michael McDonald, Lindsey Bleem +11
We present joint South Pole Telescope (SPT) and XMM-Newton observations of 8 massive galaxy clusters (0.8--1.710 M) spanning a redshift range of 0.16 to 0.…
Using the XMM-Newton small window mode to investigate systematic uncertainties in the particle background of X-ray charge-coupled device detectors
Gerrit Schellenberger, Ralph Kraft, Paul Nulsen +17
The level and uncertainty of the particle induced background in CCD detectors plays a crucial role for future X-ray instruments, such as the Wide Field Imager (WFI) onboard Athena.…
Focal Plane of the Arcus Probe X-Ray Spectrograph
Catherine E. Grant, Marshall W. Bautz, Eric D. Miller +7
The Arcus Probe mission concept provides high-resolution soft X-ray and UV spectroscopy to reveal feedback-driven structure and evolution throughout the universe with an agile resp…
Unveiling the Cosmic Chemistry II: "Direct" -based metallicity of galaxies at 3 10 with JWST/NIRSpec
Priyanka Chakraborty, Arnab Sarkar, Randall Smith +10
We report the detection of the [O III] auroral line in 42 galaxies within the redshift range of . These galaxies were selected from publicly available JWST data release…
Unveiling the Cosmic Chemistry: Revisiting the Mass-Metallicity Relation with JWST/NIRSpec at 4 < z < 10
Arnab Sarkar, Priyanka Chakraborty, Mark Vogelsberger +12
We present star formation rates (SFR), the mass-metallicity relation (MZR), and the SFR-dependent MZR across redshifts 4 to 10 using 81 star-forming galaxies observed by the JWST N…
Towards efficient machine-learning-based reduction of the cosmic-ray induced background in X-ray imaging detectors: increasing context awareness
Artem Poliszczuk, Dan Wilkins, Steven W. Allen +15
Traditional cosmic ray filtering algorithms used in X-ray imaging detectors aboard space telescopes perform event reconstruction based on the properties of activated pixels above a…
Augmenting astronomical X-ray detectors with AI for enhanced sensitivity and reduced background
D. R. Wilkins, A. Poliszczuk, B. Schneider +13
Bringing artificial intelligence (AI) alongside next-generation X-ray imaging detectors, including CCDs and DEPFET sensors, enhances their sensitivity to achieve many of the flagsh…
Advancing Precision Particle Background Estimation for Future X-ray Missions: Correlated Variability between AMS and Chandra/XMM-Newton
Arnab Sarkar, Catherine E. Grant, Eric D. Miller +9
Galactic cosmic ray (GCR) particles have a significant impact on the particle-induced background of X-ray observatories, and their flux exhibits substantial temporal variability, p…
On the Particle Acceleration Mechanisms in a Double Radio Relic Galaxy Cluster, Abell 1240
Arnab Sarkar, Felipe Andrade-Santos, Reinout J. van Weeren +12
We present a 368 ks deep Chandra observation of Abell~1240, a binary merging galaxy cluster at a redshift of 0.195 with two Brightest Cluster Galaxies (BCGs) may have passed each o…
The Gamow Explorer: A gamma-ray burst observatory to study the high redshift universe and enable multi-messenger astrophysics
N. E. White, F. E. Bauer, W. Baumgartner +63
The Gamow Explorer will use Gamma Ray Bursts (GRBs) to: 1) probe the high redshift universe (z > 6) when the first stars were born, galaxies formed and Hydrogen was reionized; and…