The Integral Payload
... cannot be focussed, i.e. it passes through most materials without being deviated. The solution adopted for Integral is to use a method known as the ‘coded-mask technique’ (Fig. 1). The concept is simple, even if the associated mathematics is far from trivial. A coded mask can be seen as a chessboard ...
... cannot be focussed, i.e. it passes through most materials without being deviated. The solution adopted for Integral is to use a method known as the ‘coded-mask technique’ (Fig. 1). The concept is simple, even if the associated mathematics is far from trivial. A coded mask can be seen as a chessboard ...
Millisecond Pulsar Binaries at Transition
... Accreting Millisecond X-Ray Pulsar Binaries in Quiescence Direct evidence for the switching has been found: PSR J18242452I (in the GC M28) shows an X-ray outburst that is exactly the same as AMXPs in outburst (Papitto et al. 2013 Nature) ...
... Accreting Millisecond X-Ray Pulsar Binaries in Quiescence Direct evidence for the switching has been found: PSR J18242452I (in the GC M28) shows an X-ray outburst that is exactly the same as AMXPs in outburst (Papitto et al. 2013 Nature) ...
Frequency x Energy Spectral fitting is degenerate : timing
... Problem!! SM09 used 70ks of data from Obs 2 - dominated by bgd flaring. Lets look at the observations again with more appropriate GTIs ...
... Problem!! SM09 used 70ks of data from Obs 2 - dominated by bgd flaring. Lets look at the observations again with more appropriate GTIs ...
Disks around low-mass stars in extreme environments
... only from core-collapse supernovae Must have been injected into the proto-solar nebula at most a few Myr after the formation of our Sun. Our solar system formed in an environment containing high-mass stars (M✶ > 30 M⊙) ...
... only from core-collapse supernovae Must have been injected into the proto-solar nebula at most a few Myr after the formation of our Sun. Our solar system formed in an environment containing high-mass stars (M✶ > 30 M⊙) ...
Additive manufacturing and high resolution X-ray optics
... The machined surface could then be ground and polished to the desired optical prescription ...
... The machined surface could then be ground and polished to the desired optical prescription ...
Danish ßrsted Mission In-Orbit Experiences and Status of The
... Analysis showed that the boom was misaligned by 36o from the satellite body to the boresight of the Star Imager and after having adjusted the transformation matrix between the Star Imager and the satellite body, the satellite was much more stable. The effort in aligning the Star Imager boresight had ...
... Analysis showed that the boom was misaligned by 36o from the satellite body to the boresight of the Star Imager and after having adjusted the transformation matrix between the Star Imager and the satellite body, the satellite was much more stable. The effort in aligning the Star Imager boresight had ...
Document
... Blazars at very high energies Bazars are powerful gamma-ray sources. The most powerful of them have equivalent isotropic luminosity 1049 erg/s. Collimation θ2/2 ~ 10-2 – 10-3. θ – jet opening angle. EGRET detected 66 (+27) sources of this type. New breakthrough is expected after the launch of GLAST ...
... Blazars at very high energies Bazars are powerful gamma-ray sources. The most powerful of them have equivalent isotropic luminosity 1049 erg/s. Collimation θ2/2 ~ 10-2 – 10-3. θ – jet opening angle. EGRET detected 66 (+27) sources of this type. New breakthrough is expected after the launch of GLAST ...
Document
... a burst is seen with total energy release of ~1042 erg; these last for ~ an hour and are likely produced by unstable c-burning in deeper layers. ...
... a burst is seen with total energy release of ~1042 erg; these last for ~ an hour and are likely produced by unstable c-burning in deeper layers. ...
Dynamics of nuclear burning during type-I X-ray bursts 1. 2. 3.
... 1. Overview of X-ray burst phenomena 2. Effects of rotation and structure of burning fronts 3. Propagation of burning on a sphere 4. Burning dynamics in magnetic fields -- application to SAX J1808 5. Conclusions and connection to observations ...
... 1. Overview of X-ray burst phenomena 2. Effects of rotation and structure of burning fronts 3. Propagation of burning on a sphere 4. Burning dynamics in magnetic fields -- application to SAX J1808 5. Conclusions and connection to observations ...
1.1 Current and Evolved Baseline - Mullard Space Science Laboratory
... (Current Baseline) The DMSP mission is to provide an enduring and survivable capability to collect and disseminate global visible and infrared cloud data and other specialized meteorological, oceanographic, and solar-geophysical data. These data support worldwide DoD operations and high priority pro ...
... (Current Baseline) The DMSP mission is to provide an enduring and survivable capability to collect and disseminate global visible and infrared cloud data and other specialized meteorological, oceanographic, and solar-geophysical data. These data support worldwide DoD operations and high priority pro ...
PHY2505S Atmospheric Radiation & Remote Sensing Lecture 3 23
... reflectance for solar irradiance, and reflectance of solar radiation by the cavity field of view. E summarizes small terms due to small departures from instrument equilibrium. ...
... reflectance for solar irradiance, and reflectance of solar radiation by the cavity field of view. E summarizes small terms due to small departures from instrument equilibrium. ...
Chandra Characterization of X-ray Emission in the Young F
... using Chandra ACIS-S spectroscopy under CXO program OBSID 12384 on 02 Dec 2010 UT. For the observation, no filters or gratings were used, and the stars were centered in the sweet spot of the S3 chip. We re-processed the Chandra data with CIAO version 4.8 (Fruscione et al. 2006), which applied the en ...
... using Chandra ACIS-S spectroscopy under CXO program OBSID 12384 on 02 Dec 2010 UT. For the observation, no filters or gratings were used, and the stars were centered in the sweet spot of the S3 chip. We re-processed the Chandra data with CIAO version 4.8 (Fruscione et al. 2006), which applied the en ...
Stars and galaxies Intro
... • Limited by how large lenses can be made FYI: The largest is the 40-inch Yerkes telescope, built in 1895 in Wisconsin (40 inch lens in a sixty-foot long telescope) ...
... • Limited by how large lenses can be made FYI: The largest is the 40-inch Yerkes telescope, built in 1895 in Wisconsin (40 inch lens in a sixty-foot long telescope) ...