CHANDRA on ,
... We present an analysis of a pointed 141 ks Chandra high-resolution transmission gratings observation of the Be X-ray emitting star HD110432, a prominent member of the γ Cas analogs. This observation represents the first high-resolution spectrum taken for this source as well as the longest uninterrup ...
... We present an analysis of a pointed 141 ks Chandra high-resolution transmission gratings observation of the Be X-ray emitting star HD110432, a prominent member of the γ Cas analogs. This observation represents the first high-resolution spectrum taken for this source as well as the longest uninterrup ...
High Energy Phenomena in Supergiant X-ray Binaries - HAL-Insu
... General characteristics SFXTs constitute a new class of ∼ 12 sources identified among the recently discovered IGRs. They are HMXBs hosting NS orbiting around sgOB companion stars, exhibiting peculiar characteristics compared to “classical” HMXBs: rapid outbursts lasting only for hours, faint quiesce ...
... General characteristics SFXTs constitute a new class of ∼ 12 sources identified among the recently discovered IGRs. They are HMXBs hosting NS orbiting around sgOB companion stars, exhibiting peculiar characteristics compared to “classical” HMXBs: rapid outbursts lasting only for hours, faint quiesce ...
SUMER/SOHO Filament Observations in Selected Lyman Lines B
... SUMER was rastering a region 120 by 150 arc sec with a raster-step of 3 arc sec. The exposure time was 60 sec with the slit-width being 1 arc sec. In the wavelength range 920 to 950 A , seven windows of 50 X 120 pixels each were displayed on the detector A, with one window (949.7 A) being on the bar ...
... SUMER was rastering a region 120 by 150 arc sec with a raster-step of 3 arc sec. The exposure time was 60 sec with the slit-width being 1 arc sec. In the wavelength range 920 to 950 A , seven windows of 50 X 120 pixels each were displayed on the detector A, with one window (949.7 A) being on the bar ...
Introduction to Phase Contrast
... unaffected. Unfortunately, our eyes as well as camera film, are unable to detect these phase differences. To reiterate, the human eye is sensitive only to the colors of the visible spectrum (variations in light frequency) or to differing levels of light intensity (variations in wave amplitude). In p ...
... unaffected. Unfortunately, our eyes as well as camera film, are unable to detect these phase differences. To reiterate, the human eye is sensitive only to the colors of the visible spectrum (variations in light frequency) or to differing levels of light intensity (variations in wave amplitude). In p ...
Electron dephasing scattering rate in two
... contribution has the same functional form of Fock contribution but magnitude is twice and sign is opposite. For the case of Coulomb interaction, the Fock contribution leads to positive MC and the Hartree contribution produce the negative MC for k Ⰶ kF 共k and kF are the inverse screening length and F ...
... contribution has the same functional form of Fock contribution but magnitude is twice and sign is opposite. For the case of Coulomb interaction, the Fock contribution leads to positive MC and the Hartree contribution produce the negative MC for k Ⰶ kF 共k and kF are the inverse screening length and F ...
Laboratory Astrophysics: Spectral Analysis of Photoionized Neon
... 1.2, hotter plasmas would have a larger standard deviation in energy). When only photoexcitation is included (no ionizing photons are present in the model) in the middle pane on the left, the higher n transitions like β and γ are more pronounced, since their upper levels (the 1snp He-like levels wit ...
... 1.2, hotter plasmas would have a larger standard deviation in energy). When only photoexcitation is included (no ionizing photons are present in the model) in the middle pane on the left, the higher n transitions like β and γ are more pronounced, since their upper levels (the 1snp He-like levels wit ...
Scanning transmission soft x-ray microscopy at beamline X
... determine quantitatively the Fe lattice substitution by other metal cations. We have acquired near edge absorption spectra of the initial HFO phase and the transformation end products goethite and hematite at the O K edge (Figure 2). Due to its low crystallinity HFO lacks the characteristic pre-edge ...
... determine quantitatively the Fe lattice substitution by other metal cations. We have acquired near edge absorption spectra of the initial HFO phase and the transformation end products goethite and hematite at the O K edge (Figure 2). Due to its low crystallinity HFO lacks the characteristic pre-edge ...
Structural and optical properties of visible active
... Dunedin, FL). A normal quartz cuvette (1 cm path length) was used for the measurement of dye solution. From the Beer–Lambert’s law, I 5 I0 10–ecd, where e is the extinction coefficient (eD35 5 31300 M1/cm), c the concentration, and d the thickness, the D35 concentration on the WO 3 film was determi ...
... Dunedin, FL). A normal quartz cuvette (1 cm path length) was used for the measurement of dye solution. From the Beer–Lambert’s law, I 5 I0 10–ecd, where e is the extinction coefficient (eD35 5 31300 M1/cm), c the concentration, and d the thickness, the D35 concentration on the WO 3 film was determi ...
Time-resolved coherent anti-Stokes Raman scattering: imaging based on Raman free induction decay
... decay curve. The temporal resolution of the T-CARS microscope is given by the instrumental response function 共IRF兲 that has been independently measured by detecting the solely nonresonant coherent radiation originating from the glass substrate. The FWHM of the IRF amounts to 200 fs. Next, we apply t ...
... decay curve. The temporal resolution of the T-CARS microscope is given by the instrumental response function 共IRF兲 that has been independently measured by detecting the solely nonresonant coherent radiation originating from the glass substrate. The FWHM of the IRF amounts to 200 fs. Next, we apply t ...
P5 Booklet FINAL - Highfields School, Wolverhampton
... is 90°; larger angles of incidence result in total internal reflection (TIR) An object decelerates if it slows down When two waves cancel out to give reduced amplitude The spreading out of a wave when it passes through a gap or around an edge. Maximum diffraction occurs when the gap width is equal i ...
... is 90°; larger angles of incidence result in total internal reflection (TIR) An object decelerates if it slows down When two waves cancel out to give reduced amplitude The spreading out of a wave when it passes through a gap or around an edge. Maximum diffraction occurs when the gap width is equal i ...
Electron Induced Fluorescence Spectra of Methane
... particle in any excited state, Y is a molecular fragment, [M-Y] molecule stripped of this fragment, and hv energy of a photon emitted during deexcitation. The processes mentioned above can be studied also in discharges. There are two great advantages of the presented method in comparison to discharg ...
... particle in any excited state, Y is a molecular fragment, [M-Y] molecule stripped of this fragment, and hv energy of a photon emitted during deexcitation. The processes mentioned above can be studied also in discharges. There are two great advantages of the presented method in comparison to discharg ...
Microsoft Word - DORAS
... It has been predicted that SBS could be greatly suppressed by proper frequency or phase modulation [11]. In the case of using phase-shift-keying (PSK) modulation, the Brillouin threshold could be 2.5 times higher than that of CW light [7]. From the formula (4), and taking into account the 2.5 times ...
... It has been predicted that SBS could be greatly suppressed by proper frequency or phase modulation [11]. In the case of using phase-shift-keying (PSK) modulation, the Brillouin threshold could be 2.5 times higher than that of CW light [7]. From the formula (4), and taking into account the 2.5 times ...
Statistics of the Interplanetary Magnetic Fields Observed at 0.72 AU
... of B over a range scales from 10 minutes to 42.7 h. The time series of the increments of B are best described quantitatively and statistically by PDFs. All the PDFs are peaked and have large tails, which can be described quantitatively by Tsallis distribution function. The two parameters of Tsallis ...
... of B over a range scales from 10 minutes to 42.7 h. The time series of the increments of B are best described quantitatively and statistically by PDFs. All the PDFs are peaked and have large tails, which can be described quantitatively by Tsallis distribution function. The two parameters of Tsallis ...