Spectra of X-ray galaxies in filaments
نویسندگان
چکیده
منابع مشابه
Emission Lines in X-ray Spectra of Clusters of Galaxies
Emission lines in X–ray spectra of clusters of galaxies reveal the presence of heavy elements in the diffuse hot plasma (the Intra Cluster Medium, or ICM) in virial equilibrium in the dark matter potential well. The relatively simple physical state of the ICM allows us to estimate, with good accuracy, its thermodynamical properties and chemical abundances. These measures put strong constraints ...
متن کاملX-ray and soft γ-ray spectra of Broad-Line Radio Galaxies
We study X-ray and soft γ-ray spectral properties of nearby Broad-Line Radio Galaxies (BLRGs) using data from Ginga, ASCA, OSSE and EXOSAT. The X-ray spectra are well fitted by an intrinsic power-law continuum with an energy index of α ∼ 0.7, moderately absorbed by a cold medium. In addition, the Ginga spectra show fluorescent Fe Kα lines with an average equivalent width of ∼ 100 eV, and, in so...
متن کاملX-ray halos in galaxies
A hot phase of the interstellar medium has now been detected and studied in several objects through its X-ray emission. A proper assessment of its characteristics is relevant for our understanding of several aspects of galaxy properties, from the large scale distribution of matter to the stellar and galaxian evolution, to the dynamics of systems and to the feeding of a central black hole. I wil...
متن کاملX-ray spectra calculation for different target-filter of mammograms using MCNP Code
ABSTRACTBackground: An electron beam generated X-ray spectrum consists of characteristic X-ray and continuous bermsstrahlung. The aim of this research is calculating and comparing X-ray spectra for different target filter of mammograms. Materials and Methods: Monte Carlo is a very powerful tool to simulate a series of different target-filter assembly in order to calculate the X-ray spectra. MC...
متن کاملX–ray and Optical Filaments in M87
We compare a very deep X–ray image of M87, at the center of the Virgo Cluster, to high-quality optical images of the low excitation emission-line gas in the same region. There are striking coincidences of detail between the two. We explore the possiblity that this represents a thermal interaction between hot gas at 10 K and warm gas at 10 K. We find two temperatures are present in the X–ray gas...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Astronomical School’s Report
سال: 2013
ISSN: 2411-6602,1607-2855
DOI: 10.18372/2411-6602.09.1064