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Multiwavelength SED as a Tool in Understanding Outbursts of Symbiotic Binaries
Skopal, A.
Symbiotic binaries consist of a few sources of radiation contributing to spectral energy distribution (SED) from hard X-rays to radio wavelengths. To identify the basic physical processes forming the observed spectrum, we have to disentangle the composite SED into its individual components of radiation, i.e., to determine their physical parameters…
Optical Emission Lines and the X-ray Properties of Type 1 Seyfert Galaxies
Popović, L. Č.; La Mura, G.; Ciroi, S. +3 more
In this contribution we report on the study of the optical emission lines and X-ray spectra of a sample of Type 1 AGNs, collected from the SDSS database and observed by the XMM-Newton satellite. Using different instruments onboard XMM, we identify the spectral components of the soft and hard energy bands (in the range from 0.3 keV to 10 keV). The …
Flare Loop Sizes in Young Suns
Schultz, J.; Nevalainen, J.; Väänänen, M. K.
We analyse 27 solar flares observed with GOES and RHESSI in the X-ray bands at 3.1--24.8 keV and 12--25 keV and in Hα . The flaring region diameter in X-rays is found to correlate with the Hα decay duration, and this correlation is used to approximate the flare loop semilength. We propose the method to measure the coronal loop semilengths in young…
The Transition from Outburst to Low Level Activity in the Low-Mass X-Ray Binary SAX J1747.0-2853
Ubertini, P.; Bazzano, A.; Heise, J. +6 more
SAX J1747.0-2853 is an X-ray transient which exhibited several outbursts between 1998 and 2001 and most probably in 1976. The outburst of 2000 was the longest and brightest. We have analyzed X-ray data sets that focus on times around the 2000 outburst and were obtained with l BeppoSAX, XMM-Newton and l RXTE.