Results 81 to 90 of about 137 (115)
FUMES III: Ultraviolet and Optical Variability of M Dwarf Chromospheres
, 2022 <p>We obtained ultraviolet and optical spectra for 9 M dwarfs across a range of rotation periods to determine whether they showed stochastic intrinsic variability distinguishable from flares.
Berta-Thompson, Zachory K. +4 more
core +1 more source
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
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Continuum and Line Emission of Flares on Red Dwarf Stars: Origin of the Blue Continuum Radiation
, 2016 There are two types of models that explain the appearance of the quasi-blackbody radiation during the impulsive phase of stellar flares. Grinin and Sobolev [Astrophysics, Vol. 13, 348 (1977)] argue that the blue component of the optical continuum is formed in "the transition layer between the chromosphere and the photosphere." Katsova et al ...
openaire +2 more sources
, 2007 We present the Programme of Monitoring of Flare Stars in the Orion aggregate by CCD based Photometer mounted at the Newtonian focus of 70/98/210-cm meniscus telescope through glass imaging quality C1 filter (3900 A/800 A) with a time resolution of 0.5-1 ...
Omar Kurtanidze
core
, 2011 At present, dwarf M stars are being considered as potential hosts for habitable planets. However, an important fraction of these stars are flare stars, which among other kind of radiation, emit large amounts of UV radiation during flares, and it is ...
Mauas, P.J.D. +2 more
core
Advances in Understanding Solar and Stellar Flares
, 2016 Flares result from the sudden reconnection and relaxation of magnetic fields in the coronae of stellar atmospheres. The highly dynamic atmospheric response produces radiation across the electromagnetic spectrum, from the radio to X-rays, on a range of ...
Kowalski, Adam F. +1 more
core +1 more source
UEG Week 2025 Moderated Posters
United European Gastroenterology Journal, Volume 13, Issue S8, Page S189-S802, October 2025.
wiley +1 more source
Stellar Activity at the End of the Main Sequence: GHRS Observations of the M8 Ve Star VB 10
, 1995 We present Goddard High Resolution Spectrograph observations of the M8 Ve star VB 10 (equal to G1 752B), located very near the end of the stellar main sequence, and its dM3.5 binary companion G1 752A.
Brown, Alexander +4 more
core
, 2005 The problem of flare energy distribution of the Sun is strongly related to the power-law energy spectra of flares on the UV Ceti-type stars. In a preliminary study (1972–1993), the X-ray flare integral energy spectrum (IES) was represented by a unique ...
Kasinskii, V.
core +1 more source