Results 71 to 80 of about 2,463 (300)
Search for Flare Stars in TAOS Data
, 2007 中美掩星觀測計畫的目標為測量彗星核大小至幾公里的古柏帶天體之數量與大小分佈。在毎個晴朗的夜晚，超過數百顆背景恆星由三台寬視野(3平方度)、短焦比(f/1.9)、小口徑(50公分)且配備有2k×2k CCD 相機的望遠鏡自動監控。在三台望遠鏡同時操作下，誤報率可因此降低。資料取樣頻率為5 Hz，孔徑測光可至星等約為13.7等的背景恆星。 儘管 TAOS 是為偵測掩星事件而設計，其龐大的資料量與短暫的曝光時間提供了可用於搜尋快速變化之變星的資料庫。由於毎隔0.2秒記錄一次背景恆星的光通量 ...
Liu, Chu-Hsin, 劉筑欣
core
Arthritis Care &Research, EarlyView.Objective Although the definition of a gout flare is well established, the state of gout flare resolution has not yet been defined. This study aimed to explore patients’ experiences and perceptions of gout flare resolution. Methods Semistructured interviews were conducted with 24 people with gout, guided by open‐ended questions exploring their ...
Sarah Stewart +5 more
wiley +1 more source
Study of quiescent state X-ray emission from flare stars
, 1986 Quiescent-state X-ray emission of seven flare stars was studied as well as the relationship between the emissions of the chromosphere, transition region and corona.
Rao, A. R. +2 more
core +1 more source
Evidence for Sympathetic Flaring in TESS Data
The Astrophysical JournalMost flares on the Sun occur at random, but there is a small percentage of “sympathetic flaring”—the triggering of one flare by another. Previously there had been no widespread confirmation of sympathetic flares on other stars. In this work, we developed
Veronica Pratt +5 more
doaj +1 more source
Flares on active M-type stars observed with XMM-Newton and Chandra.
, 2007 M-type red dwarfs are among the most active stars. Their light curves display random variability of rapid increase and gradual decrease in emission.
Kraev, U.M., Mitra Kraev, Urmila
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The Primary Flare Following a Stellar Collision in a Galactic Nucleus
The Astrophysical Journal LettersHigh-velocity stellar collisions near supermassive black holes may result in a complete disruption of the stars. The initial disruption can have energies on par with supernovae and power a very fast transient.
Yuval Brutman +2 more
doaj +1 more source
Microstructure Evolution of a VMnFeCoNi High‐Entropy Alloy After Synthesis, Swaging, and Annealing
Advanced Engineering Materials, EarlyView.The synthesis and processing (rotary swaging and annealing) of the novel VMnFeCoNi alloy is investigated, alongside the estimation of the grain size effect on hardness. Analysis of a wide grain size range of recrystallized microstructures (12–210 µm) reveals a low annealing twin density.
Aditya Srinivasan Tirunilai +6 more
wiley +1 more source
New Approach to Superflare Energy Determination
The Astrophysical Journal LettersWe present a new method for estimating the total energy radiated by stellar flares in broadband continua, which assumes a constant emitting area but incorporates a time-dependent temperature evolution.
P. Heinzel +3 more
doaj +1 more source
Blood Biomarkers and Surface‐Enhanced Raman Spectroscopy for Gout: A Comprehensive Review
Advanced Functional Materials, EarlyView.Schematic illustrating gout disease progression from asymptomatic hyperuricemia to chronic tophaceous disease, highlighting the limitations of conventional imaging and biochemical diagnostics and the potential of engineered SERS platforms for ultrasensitive blood‐based detection of urate‐related biomarkers across disease stages, with the color gradient
Isuri Perera +6 more
wiley +1 more source
, 1966 Acoustic waves, hydromagnetic effect, and convective instability due to molecular dissociation are considered as mechanisms for flare activity in M dwarf stars. The first mechanism does not appear to be significant.
Vardya, M. S.
core +1 more source