搜索结果: 1-6 共查到“理学 X-ray Variability”相关记录6条 . 查询时间(0.125 秒)
Multiwavelength campaign on Mrk 509. IV. Optical-UV-X-ray variability and the nature of the soft X-ray excess
galaxies: active – galaxies: nuclei – galaxies: Seyfert – quasars: individual: Mrk 509 – X-rays: galaxies
font style='font-size:12px;'>
2011/9/27
We present the analysis of XMM-Newton and Swift optical-UV and X-ray observations of the Seyfert-1/QSO Mrk 509, part of an unprecedented multi-wavelength campaign, investigating the nuclear environmen...
The Physics of Disk Winds, Jets,and X-ray Variability in GRS 1915+105
Disk Winds Jets X-ray Variability
font style='font-size:12px;'>
2011/1/11
We present new insights about accretion and ejection physics based on joint RXTE/Chandra HETGS studies of rapid X-ray variability in GRS 1915+105. For the first time, with fast phase-resolved spectros...
X-ray variability with WFXT: AGNs, transients and more
X-ray WFXT
font style='font-size:12px;'>
2011/1/13
The Wide Field X-ray Telescope (WFXT) is a proposed mission with a high survey speed, due to the combination of large field of view (FOV) and effective area, i.e. grasp, and sharp PSF across the whole...
X-ray variability patterns in blazars
X-ray variability patterns blazars
font style='font-size:12px;'>
2011/1/10
We study the expected variability patterns of blazars within the two-zone acceleration model putting special emphasis on flare shapes and spectral lags. We solve semi-analytically the kinetic equation...
The scaling of X-ray variability with luminosity in Ultra-luminous X-ray sources
Cosmology and Extragalactic Astrophysics (astro-ph.CO)
font style='font-size:12px;'>
2011/1/5
We investigated the relationship between the X-ray variability amplitude and X-ray luminosity for a sample of 14 bright Ultra-luminous X-ray sources (ULXs) with XMM-Newton/EPIC data, and compare it wi...
Soft X-ray Variability of the Bright Quasar 3C273
individual (3C273) quasar—X-rays galaxies
font style='font-size:12px;'>
2009/5/20
We present the results from ROSAT observations of 3C273
in the soft X-ray band. The light variation of 3C273 was investigated for
three different energy bands of soft, medium, and hard. The maximum
...