Matter under extreme conditions experiments at the Linac
... electrons that propagate along filaments and lead to energetic particle beams [9]. Extremely high magnetic fields surround the filaments and affect energy transport and ionization. The target interior is also an intense source of positrons and high-energy photons, x- and γ-rays. LCLS will allow us t ...
... electrons that propagate along filaments and lead to energetic particle beams [9]. Extremely high magnetic fields surround the filaments and affect energy transport and ionization. The target interior is also an intense source of positrons and high-energy photons, x- and γ-rays. LCLS will allow us t ...
Radio-loud ROSAT sources near the North Ecliptic Pole
... Bank (RGB) sources indicate that most of the unidentified sources are quasars, although some BL Lacs, radio galaxies, Seyferts and clusters are undoubtably present. However, their properties differ subtly from those of brighter radio-loud AGN such as the 1 Jy catalog (Kühr et al. 1979). These diffe ...
... Bank (RGB) sources indicate that most of the unidentified sources are quasars, although some BL Lacs, radio galaxies, Seyferts and clusters are undoubtably present. However, their properties differ subtly from those of brighter radio-loud AGN such as the 1 Jy catalog (Kühr et al. 1979). These diffe ...
MAXI J1659-152: The shortest orbital period black
... MAXI J1659−152 is a bright X-ray transient black-hole candidate binary system discovered in September 2010. We report here on MAXI, RXTE, Swift, and XMM-Newton observations during its 2010/2011 outburst. We find that during the first one and a half week of the outburst the X-ray light curves display ...
... MAXI J1659−152 is a bright X-ray transient black-hole candidate binary system discovered in September 2010. We report here on MAXI, RXTE, Swift, and XMM-Newton observations during its 2010/2011 outburst. We find that during the first one and a half week of the outburst the X-ray light curves display ...
The e-Science in the Transient Radio Sky Soon
... (1)Imaging jets with KVN may not be possible; hence, the collaboration with east asia VLBI facilities are demanding. (2)KVN’s unique facility of the simultaneous, multi-frequency observation is idealistic for studying dramatic and rapid change of spectra, containing at least five evolutionary stages ...
... (1)Imaging jets with KVN may not be possible; hence, the collaboration with east asia VLBI facilities are demanding. (2)KVN’s unique facility of the simultaneous, multi-frequency observation is idealistic for studying dramatic and rapid change of spectra, containing at least five evolutionary stages ...
MAXI J1659-152 - UvA-DARE
... MAXI J1659−152 is a bright X-ray transient black-hole candidate binary system discovered in September 2010. We report here on MAXI, RXTE, Swift, and XMM-Newton observations during its 2010/2011 outburst. We find that during the first one and a half week of the outburst the X-ray light curves display ...
... MAXI J1659−152 is a bright X-ray transient black-hole candidate binary system discovered in September 2010. We report here on MAXI, RXTE, Swift, and XMM-Newton observations during its 2010/2011 outburst. We find that during the first one and a half week of the outburst the X-ray light curves display ...
4. in-flight calibration plan
... output window producing a ‘pulse’ of visible light. The typical spatial extend for a phosphor light pulse is ~ 0.02 mm FWHM, limiting the intensifier resolution to approximately 25 linepairs per mm. For CIPS the intensifier is equipped with a P-43 phosphor, which peaks at a wavelength of ~545 nm and ...
... output window producing a ‘pulse’ of visible light. The typical spatial extend for a phosphor light pulse is ~ 0.02 mm FWHM, limiting the intensifier resolution to approximately 25 linepairs per mm. For CIPS the intensifier is equipped with a P-43 phosphor, which peaks at a wavelength of ~545 nm and ...
GLAO Instrument from MOIRCS Perspective
... morphology are limited. Mostly just photometric use. • Deep obs … condition averaged out -> degrade. • Deep Imaging Data…follow-up impossible? (But All visible objects will be spectroscopic targets for TMT !!) ...
... morphology are limited. Mostly just photometric use. • Deep obs … condition averaged out -> degrade. • Deep Imaging Data…follow-up impossible? (But All visible objects will be spectroscopic targets for TMT !!) ...
MAXI J1659−152: the shortest orbital period black
... MAXI J1659−152 is a bright X-ray transient black-hole candidate binary system discovered in September 2010. We report here on MAXI, RXTE, Swift, and XMM-Newton observations during its 2010/2011 outburst. We find that during the first one and a half week of the outburst the X-ray light curves display ...
... MAXI J1659−152 is a bright X-ray transient black-hole candidate binary system discovered in September 2010. We report here on MAXI, RXTE, Swift, and XMM-Newton observations during its 2010/2011 outburst. We find that during the first one and a half week of the outburst the X-ray light curves display ...
The Stellar Population And Origin Of The Mysterious K.V. Getman
... The mysterious high galactic latitude cometary globule (CG) CG12 has been observed with the ACIS detector on board the Chandra X-ray Observatory. We detect 128 X-ray sources, of which a half are likely young stars formed within the globule's head. This new population of >=50 T-Tauri stars and one ne ...
... The mysterious high galactic latitude cometary globule (CG) CG12 has been observed with the ACIS detector on board the Chandra X-ray Observatory. We detect 128 X-ray sources, of which a half are likely young stars formed within the globule's head. This new population of >=50 T-Tauri stars and one ne ...
Today in Astronomy 102: black hole observations, v.4
... Treaty, the US and USSR each put up satellites with X- and ray detectors to monitor the other’s compliance with the treaty. Immediately these instruments detected many brief, bright bursts of rays, similar to the expectations for above-ground nuclear detonations. Naturally, this worried all con ...
... Treaty, the US and USSR each put up satellites with X- and ray detectors to monitor the other’s compliance with the treaty. Immediately these instruments detected many brief, bright bursts of rays, similar to the expectations for above-ground nuclear detonations. Naturally, this worried all con ...
payload_ssr
... The New Horizons mission was launched on 2006 January 19, and the spacecraft is heading for a flyby encounter with the Pluto system in the summer of 2015. The challenges associated with sending a spacecraft to Pluto in less than 10 years and performing an ambitious suite of scientific investigations ...
... The New Horizons mission was launched on 2006 January 19, and the spacecraft is heading for a flyby encounter with the Pluto system in the summer of 2015. The challenges associated with sending a spacecraft to Pluto in less than 10 years and performing an ambitious suite of scientific investigations ...
overview of the new horizons science payload
... The New Horizons mission was launched on 2006 January 19, and the spacecraft is heading for a flyby encounter with the Pluto system in the summer of 2015. The challenges associated with sending a spacecraft to Pluto in less than 10 years and performing an ambitious suite of scientific investigations ...
... The New Horizons mission was launched on 2006 January 19, and the spacecraft is heading for a flyby encounter with the Pluto system in the summer of 2015. The challenges associated with sending a spacecraft to Pluto in less than 10 years and performing an ambitious suite of scientific investigations ...
Chandra News The Secret X-ray Lives of Planetary Nebulae
... were of the compact PN BD +30°3639, and this object has also been the subject of the deepest Chandra observations of any PN (a total of ∼400 ks in Cycles 1, 6, and 10). Both imaging and gratings (LETG) spectroscopy have been performed, with ACIS-S as the sensor (Kastner et al. 2000; Yu et al. 2009). ...
... were of the compact PN BD +30°3639, and this object has also been the subject of the deepest Chandra observations of any PN (a total of ∼400 ks in Cycles 1, 6, and 10). Both imaging and gratings (LETG) spectroscopy have been performed, with ACIS-S as the sensor (Kastner et al. 2000; Yu et al. 2009). ...
Calculation of diffraction efficiency for curved crystals with arbitrary
... The ratio of diffracted to incident intensities is called reflectivity, and in crystals with CDPs it strongly depends on their curvature. The reflectivity is composed of two contributions. In a non-absorbing crystal, the reflectivity would be equal to the ratio of diffracted to transmitted intensiti ...
... The ratio of diffracted to incident intensities is called reflectivity, and in crystals with CDPs it strongly depends on their curvature. The reflectivity is composed of two contributions. In a non-absorbing crystal, the reflectivity would be equal to the ratio of diffracted to transmitted intensiti ...
MHD seismology as a tool to diagnose the coronae of X
... these Sun-like stars have seed magnetic field generation in their interior, which transport outward to permeate their chromosphere and coronae in leading to the formation of transients (e.g., flares) as well as some form of MHD wave activity (e.g., Pandey & Srivastava 2009) similar to the transients ...
... these Sun-like stars have seed magnetic field generation in their interior, which transport outward to permeate their chromosphere and coronae in leading to the formation of transients (e.g., flares) as well as some form of MHD wave activity (e.g., Pandey & Srivastava 2009) similar to the transients ...
CORTO_upgrade_and_improvement
... • A time resolution of 250 ps (for a bias voltage of 16 kV), coordinate resolution along the X direction of 1.8 cm and along the Y direction of 2.1 cm. ...
... • A time resolution of 250 ps (for a bias voltage of 16 kV), coordinate resolution along the X direction of 1.8 cm and along the Y direction of 2.1 cm. ...
Neutron Stars – Thermal Emitters
... few hundreds keV. They are typically radio silent, although very bright radio pulses have been observed from a few sources. SGR/AXPs are generally believed to be magnetars (see the review by Olausen and Kaspi 2014), i.e. NSs ultimately powered by the decay of their magnetic field (Duncan and Thompso ...
... few hundreds keV. They are typically radio silent, although very bright radio pulses have been observed from a few sources. SGR/AXPs are generally believed to be magnetars (see the review by Olausen and Kaspi 2014), i.e. NSs ultimately powered by the decay of their magnetic field (Duncan and Thompso ...
Observational Methods
... 11. Which of the following lists of the advantages of reflecting telescopes over refracting telescopes is FALSE? A. Reflectors don’t suffer from astigmatism, coma and spherical aberration. Y B. Glass can be chosen for its thermal properties rather than its optical properties. C. There is no chromati ...
... 11. Which of the following lists of the advantages of reflecting telescopes over refracting telescopes is FALSE? A. Reflectors don’t suffer from astigmatism, coma and spherical aberration. Y B. Glass can be chosen for its thermal properties rather than its optical properties. C. There is no chromati ...
78 diffract - effects.p65
... If a beam of X-rays of wavelength 2.1 × 10-10 m is directed at a thin metal sheet (composed of a large number of randomly oriented metal grains), a diffraction pattern is produced. It is found that rays deflected through 36 degrees produce the first interference maximum. Find the spacing between the ...
... If a beam of X-rays of wavelength 2.1 × 10-10 m is directed at a thin metal sheet (composed of a large number of randomly oriented metal grains), a diffraction pattern is produced. It is found that rays deflected through 36 degrees produce the first interference maximum. Find the spacing between the ...
THE DENSEST GALAXY
... Using the Keck/DEIMOS spectrum, the integrated velocity dispersion of M60-UCD1 was measured by crosscorrelating the region around the Ca triplet with a library of templates of the same resolution and wavelength coverage, as described by Strader et al. (2011). This value is σp = 68 ± 5 km s−1 . The r ...
... Using the Keck/DEIMOS spectrum, the integrated velocity dispersion of M60-UCD1 was measured by crosscorrelating the region around the Ca triplet with a library of templates of the same resolution and wavelength coverage, as described by Strader et al. (2011). This value is σp = 68 ± 5 km s−1 . The r ...
Soft Gamma-ray Pulsars
... Different inclination angles and viewing angles lead to different energies of the peak of the spectrum due to different optical depths of the magnetic pair creation. ...
... Different inclination angles and viewing angles lead to different energies of the peak of the spectrum due to different optical depths of the magnetic pair creation. ...
The densest galaxy - SelectedWorks
... than the measured value of σp , by integrating over our DEIMOS extraction window (1.11 2 × 1.11 0) and accounting for seeing. The dynamical mass determined in this manner is Mvir = (2.0 ± 0.3) × 108 M0 . The systematic uncertain ties are significant: we have assumed isotropy, sphericity, and mass-fo ...
... than the measured value of σp , by integrating over our DEIMOS extraction window (1.11 2 × 1.11 0) and accounting for seeing. The dynamical mass determined in this manner is Mvir = (2.0 ± 0.3) × 108 M0 . The systematic uncertain ties are significant: we have assumed isotropy, sphericity, and mass-fo ...
missions072408 - Fermi Gamma
... NuSTAR – now in Phase B, planned for 2011 launch • SNAP – will be proposed as soon as the AO comes out (expected this year) • EXIST – doesn’t really exist! • All these missions are in low-Earth orbit, and study the sky in either x-rays or gamma rays (or both) ...
... NuSTAR – now in Phase B, planned for 2011 launch • SNAP – will be proposed as soon as the AO comes out (expected this year) • EXIST – doesn’t really exist! • All these missions are in low-Earth orbit, and study the sky in either x-rays or gamma rays (or both) ...
UAH
... – Increased Convection E-field, brings plasmasheet ions deep into the magnetosphere. The “notch filter” permits only certain energy/PA’s deepest access. Partial RC forms. Then cross-L transport circularizes the RC ...
... – Increased Convection E-field, brings plasmasheet ions deep into the magnetosphere. The “notch filter” permits only certain energy/PA’s deepest access. Partial RC forms. Then cross-L transport circularizes the RC ...
Measurement of decay time of liquid scintillator
... to Eq. (2), gðtÞ is the instrumental response function, according to Eq. (3), et=RC is used to describe the approximation of the RC loop between the output of PMT and input of oscilloscope which result in the aberrance of scintillation pulse shape. The good fit is obtained in the fitting region from ...
... to Eq. (2), gðtÞ is the instrumental response function, according to Eq. (3), et=RC is used to describe the approximation of the RC loop between the output of PMT and input of oscilloscope which result in the aberrance of scintillation pulse shape. The good fit is obtained in the fitting region from ...
X-ray astronomy detector
X-ray astronomy detectors are instruments that detect X-rays for use in the study of X-ray astronomy.X-ray astronomy is an observational branch of astronomy which deals with the study of X-ray emission from celestial objects. X-radiation is absorbed by the Earth's atmosphere, so instruments to detect X-rays must be taken to high altitude by balloons, sounding rockets, and satellites. X-ray astronomy is part of space science.X-ray astronomy detectors have been designed and configured primarily for energy and occasionally for wavelength detection using a variety of techniques usually limited to the technology of the time.