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  • Michal Simon
  • 2011
Modern detectors used in high energy physics experiments are complex instruments designed to register collisions of particles at a rate in the MHz range. Data that correspond to a single collision of particles, referred to as an event, are acquired from millions of readout channels, and filtered, first by dedicated hardware, and then by computing farms(More)
The formation of planets around binary stars may be more difficult than around single stars. In a close binary star (with a separation of less than a hundred astronomical units), theory predicts the presence of circumstellar disks around each star, and an outer circumbinary disk surrounding a gravitationally cleared inner cavity around the stars. Given that(More)
We investigate the use of the gravity sensitive neutral sodium (Na i) doublet at 8183 Å and 8195 Å (Na 8200 Å doublet) as an age indicator for M dwarfs. We measured the Na doublet equivalent width (EW) in giants, old dwarfs, young dwarfs, and candidate members of the β Pic moving group using medium-resolution spectra. Our Na 8200 Å doublet EW analysis shows(More)
The young system RX J0529.3+1210 was initially identified as a single−lined spectroscopic binary. Using high−resolution infrared spectra, acquired with NIR-SPEC on Keck II, we measured radial velocities for the secondary. The method of using the infrared regime to convert single−lined spectra into double−lined spectra, and derive the mass ratio for the(More)
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