Results 111 to 120 of about 111,221 (213)
Abstract The Solar, Anomalous, and Magnetospheric Explorer (SAMPEX) mission launched in July 1992 was the first NASA “Small Explorer” project. It had the goal to show how space missions could be developed much more rapidly than had become the situation in the 1980s and 1990s.
D. N. Baker, G. M. Mason
wiley +1 more source
Low-frequency quasiperiodic oscillations (LFQPOs) are commonly observed in X-ray light curves of black hole X-ray binaries (BHXRBs); however, their origin remains a topic of debate.
Qing-Cang Shui+16 more
doaj +1 more source
A Spectral Analysis of the Masuda Flare UsingYohkohHard X‐Ray Telescope Pixon Reconstruction [PDF]
D. M. Alexander, Thomas R. Metcalf
openalex +1 more source
Free dentinal tubules in the middle 1/3 of the root canal. ABSTRACT One area of technological advancement has been the shift from stainless steel hand tools to nickel‐titanium (Ni‐Ti) rotary tools. This paper aims to perform an in vitro comparative study to evaluate the efficacy of five endodontic manual and rotary instruments such as Kerr files ...
Corina‐Alexandra Brinza+7 more
wiley +1 more source
Demography of obscured and unobscured AGN: prospects for a Wide Field X-ray Telescope [PDF]
We discuss some of the main open issues in the evolution of Active Galactic Nuclei which can be solved by the sensitive, wide area surveys to be performed by the proposed Wide Field X-ray Telescope mission.
arxiv
Radio Pulse Search from Aql X-1
We present 12 observations of the accreting millisecond X-ray pulsar Aql X-1, taken from 2022 August to 2023 October using the Five-hundred-meter Aperture Spherical Radio Telescope at 1250 MHz.
Long Peng+7 more
doaj +1 more source
Abstract Plasmaspheric hiss plays an important role in the electron precipitation and the slot formation in radiation belts. Recent studies show the whistler‐mode waves can be guided in the density irregularities, performing parallel propagation. Therefore, the resonance between ducted waves and energetic electrons can expand to higher latitudes, and ...
Bopu Feng+11 more
wiley +1 more source
Reconstructing light curves from HXMT imaging observations [PDF]
The Hard X-ray Modulation Telescope (HXMT) is a Chinese space telescope mission. It is scheduled for launch in 2015. The telescope will perform an all-sky survey in hard X-ray band (1 - 250 keV), a series of deep imaging observations of small sky regions as well as pointed observations.
arxiv
Expansion and Spectral Softening of the Dust-scattering Rings of GRB 221009A
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
XMM-Newton Perspective of the Unique Magnetic Binary-ϵ Lupi
The ϵ Lupi A (HD 136504) system stands out among magnetic massive binaries as the only short-period binary system in which both components have detectable magnetic fields.
Ayan Biswas+5 more
doaj +1 more source