Results 181 to 190 of about 2,093,256 (347)

231 Manufacturing Process of Replicated Aspheric Thin Mirrors for a Hard X-Ray Telescope

, 2006
Yoshiharu Namba, Takuji SHIMOMURA, Toshiyuki Shimizu   +2 more
openalex   +2 more sources

Chandra X-Ray Observatory and Hubble Space Telescope Observations of the Intermediate-age Cluster GLIMPSE-C01 [PDF]

, 2018
Jeremy Hare, Oleg Kargaltsev, Blagoy Rangelov   +2 more
openalex   +1 more source

Development and Validation of the GEANT4 Model of the Electron Proton Helium Instrument on Board the SOHO Spacecraft Utilizing the Accelerator Measurements at the Hahn‐Meitner Institute Berlin

Earth and Space Science, Volume 13, Issue 1, January 2026.
Abstract Context. The Electron Proton Helium INstrument (EPHIN) aboard SOlar and Heliospheric Observatory is a particle telescope that measures energetic protons and helium above 4 MeV/nuc and electrons above 150 keV. While a calibration of EPHIN has been performed before launch, it has only partially been assessed reducing the accuracy of the detector
M. Hörlöck, B. Heber, S. Jensen, P. Kühl, H. Sierks   +4 more
wiley   +1 more source

Expansion and Spectral Softening of the Dust-scattering Rings of GRB 221009A

The Astrophysical Journal
An expanding X-ray halo or rings appear when short pulses of X-ray radiation from a background source are scattered by clouds of dust in the Milky Way. We study the X-ray rings of the brightest gamma-ray burst (GRB) 221009A, detected by the Swift X-Ray ...
Guoying Zhao, Rong-Feng Shen
doaj   +1 more source

Manufacturing of Replicated Pt/C Multilayer Mirrors for X-Ray Telescope

, 2004
Yoshiharu NAMBA, Atsuya Fushiki
openalex   +2 more sources

Enhanced Radiation Exposure of Airline Crew and Passengers During the May 2024 Geomagnetic Storm

Journal of Geophysical Research: Space Physics, Volume 131, Issue 1, January 2026.
Abstract Enhanced radiation at aviation altitudes is a concern for flight crew and passengers. During space weather events, solar flares and coronal mass ejection (CME) driven shocks are sources of energetic particles that can reach Earth's near‐space environment and interact with its magnetic field and atmosphere.
Homayon Aryan, Jacob Bortnik, W. Kent Tobiska, Piyush Mehta, Benjamin Hogan, Rashmi Siddalingappa, Harshitha Challa   +6 more
wiley   +1 more source

Observation of the X-ray source Sco X-1 from Skylab [PDF]

An attempt to observe the discrete X-ray source Sco X-1 on 20 September 1973 between 0856 and 0920 UT is reported. Data obtained with the ATM/S-056 X-ray event analyzer, in particular the flux observed with the 1.71 to 4.96 KeV counter, is analyzed.
Wilson, R. M.
core   +1 more source

The Wide Field X–ray Telescope [PDF]

, 2010
P. Tozzi
openalex   +1 more source

The SRG X-ray orbital observatory, its telescopes and first scientific results [PDF]

, 2021
R. Sunyaev, V. Arefiev, V. Babyshkin, A. V. Bogomolov, Kirill Borisov, M. Buntov, H. Brunner, R. Burenin, E. Churazov, Diogo Coutinho, Josef Eder, Natan Eismont, M. J. Freyberg, M. Gilfanov, P. Gureyev, G. Hasinger, Ildar Khabibullin, Vladimir A. Kolmykov, S. V. Komovkin, Roman Krivonos, I. Lapshov, V. Levin, I. Lomakin, A. Lutovinov, П. С. Медведев, A. Merloni, T. Mernik, E. A. Mikhailov, V. Molodzov, P. Mzhelsky, S. Mueller, K. Nandra, В. Н. Назаров, M. Pavlinsky, A. Poghodin, P. Predehl, J. Robrade, S. Sazonov, H. Scheuerle, A. E. Shirshakov, A. Tkachenko, V. Voron   +41 more
openalex   +1 more source

The High Plasma Density Observed Along the PJ57 Juno Flyby of Io Implies the Presence of a Dense Atomic Corona

Journal of Geophysical Research: Space Physics, Volume 131, Issue 1, January 2026.
Abstract On December 2023, the Juno spacecraft made a flyby of Io above the northern hemisphere at a closest approach (CA) altitude of ∼1,500 km (PJ57). The Juno/Waves and Radio‐occultation measurements showed a surprising large electron density ∼28,000 cm−3 near closest approach.
V. Dols, F. Bagenal
wiley   +1 more source