Results 111 to 120 of about 2,093,256 (347)

Alternative Approaches for Estimating Highest‐Density Regions

open access: yesInternational Statistical Review, EarlyView.
Summary Among the variety of statistical intervals, highest‐density regions (HDRs) stand out for their ability to effectively summarise a distribution or sample, unveiling its distinctive and salient features. An HDR represents the minimum size set that satisfies a certain probability coverage, and current methods for their computation require ...
Nina Deliu, Brunero Liseo
wiley   +1 more source

Re-testing the JET-X Flight Module No. 2 at the PANTER facility

open access: yes, 2014
The Joint European X-ray Telescope (JET-X) was the core instrument of the Russian Spectrum-X-gamma space observatory. It consisted of two identical soft X-ray (0.3 - 10 keV) telescopes with focusing optical modules having a measured angular resolution of
Basso, Stefano   +21 more
core   +1 more source

Symptomatic Deep Venous Thrombosis of the Upper Extremity Following Transvenous Lead Extraction, Data From EXTRACT Registry

open access: yesJournal of Cardiovascular Electrophysiology, EarlyView.
ABSTRACT Background Venous thrombosis occurring after TLE procedures is a fairly common but poorly described complication and requires further investigation into its causes. Aim The aim of this study was to identify independent predictors of UEDVT occurrence after TLE procedures.
Michal Joniec   +9 more
wiley   +1 more source

Multiwavelength Study of a Hyperluminous X-Ray Source near NGC 6099: A Strong IMBH Candidate

open access: yesThe Astrophysical Journal
We report on the intriguing properties of a variable X-ray source projected at the outskirts of the elliptical galaxy NGC 6099 ( d  ≈ 139 Mpc). If truly located near NGC 6099, this is a hyperluminous X-ray source that reached an X-ray luminosity L _X ...
Yi-Chi Chang   +5 more
doaj   +1 more source

Hard X ray polarimetry with wide band Laue lens telescopes [PDF]

open access: gold, 2012
E. Caroli   +3 more
openalex   +1 more source

A soft x-ray polarimeter designed for broadband x-ray telescopes [PDF]

open access: yesSPIE Proceedings, 2007
A novel approach for measuring linear X-ray polarization over a broad-band using conventional imaging optics and cameras is described. A new type of high efficiency grating, called the critical angle transmission grating is used to disperse soft X-rays radially from the telescope axis.
openaire   +2 more sources

X-Ray and Optical Polarization Aligned with the Radio Jet Ejecta in GX 339–4

open access: yesThe Astrophysical Journal Letters
We present the first X-ray polarization measurements of GX 339–4. IXPE observed this source twice during its 2023–2024 outburst, once in the soft-intermediate state and again during a soft state.
G. Mastroserio   +29 more
doaj   +1 more source

The high energy X-ray probe (HEX-P): instrument and mission profile

open access: yesFrontiers in Astronomy and Space Sciences
The High Energy X-ray Probe (HEX-P) is a proposed NASA probe-class mission that combines the power of high angular resolution with a broad X-ray bandpass to provide the necessary leap in capabilities to address the important astrophysical questions of ...
Kristin K. Madsen   +17 more
doaj   +1 more source

The Ysz--Yx Scaling Relation as Determined from Planck and Chandra

open access: yes, 2012
SZ clusters surveys like Planck, the South Pole Telescope, and the Atacama Cosmology Telescope, will soon be publishing several hundred SZ-selected systems. The key ingredient required to transport the mass calibration from current X-ray selected cluster
More, Surhud   +2 more
core   +1 more source

A transmissive x-ray polarimeter design for hard x-ray focusing telescopes [PDF]

open access: green, 2015
Hong Li   +13 more
openalex   +1 more source

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