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Stress transmission in granular matter
Tomaso Aste, Tiziana Di Matteo, Enrico Galleani d'Agliano
The transmission of forces through a disordered granular system is studied by means of a geometrical-topological approach that reduces the granular packing into a set of layers. Th…
Radio Foregrounds for the 21cm Tomography of the Neutral Intergalactic Medium at High Redshifts
Tiziana Di Matteo, Rosalba Perna, Tom Abel +1
Absorption or emission against the cosmic microwave background radiation (CMB) may be observed in the redshifted 21cm line if the spin temperature of the neutral intergalactic medi…
Chandra and RXTE Spectroscopy of the Galactic Microquasar XTE J1550-564 in Outburst
J. M. Miller, H. L. Marshall, R. Wijnands +10
On two occasions, we obtained nearly simultaneous ~ 4 kilosecond snapshot observations of the Galactic black hole and microquasar XTE J1550-564 with Chandra and RXTE near the peak…