Results 11 to 20 of about 1,019 (146)

Is the squeezing of relic gravitational waves produced by inflation detectable? [PDF]

open access: yes, 1999
Grishchuk has shown that the stochastic background of gravitational waves produced by an inflationary phase in the early Universe has an unusual property: it is not a stationary Gaussian random process. Due to squeezing, the phases of the different waves
A. Abramovici   +23 more
core   +2 more sources

50 TeV HEGRA Sources and Infrared Radiation [PDF]

open access: yes, 1997
The recent observations of 50 TeV gamma radiation by HEGRA have the potential of determining the extragalactic flux of infrared radiation. The fact that radiation is observed in the range between 30 and 100 TeV sets an upper limit on the infrared flux ...
Berezinsky, V.   +2 more
core   +2 more sources

Plans for a 10-m Submillimeter-wave Telescope at the South Pole [PDF]

open access: yes, 1998
A 10 meter diameter submillimeter-wave telescope has been proposed for the NSF Amundsen-Scott South Pole Station. Current evidence indicates that the South Pole is the best submillimeter-wave telescope site among all existing or proposed ground-based ...
Carlstrom, John E.   +7 more
core   +3 more sources

What we can learn on inflation from recent CMBR data [PDF]

open access: yes, 2001
We review the prediction of inflation and the constraints on inflationary models coming from recent observations.Comment: 10 pages, 2 figures; to be published in JHEP - Proceedings of the International Europhysics Conference on High Energy Physics ...
Covi, Laura
core   +2 more sources

Contribution of Long Wavelength Gravitational Waves to the CMB Anisotropy

open access: yes, 1992
We present an in depth discussion of the production of gravitational waves from an inflationary phase that could have occurred in the early universe, giving derivations for the resulting spectrum and energy density.
A. A. Starobinsky   +38 more
core   +1 more source

Prospects for radio detection of ultra-high energy cosmic rays and neutrinos [PDF]

open access: yes, 2004
The origin and nature of the highest energy cosmic ray events is currently the subject of intense investigation by giant air shower arrays and fluorescent detectors. These particles reach energies well beyond what can be achieved in ground-based particle
Abbasi   +60 more
core   +3 more sources

Design and Performance of a 30/40 GHz Diplexed Focal Plane for the BICEP Array

open access: yesThe Astrophysical Journal Supplement Series
We demonstrate a wideband diplexed focal plane suitable for observing low-frequency foregrounds that are important for cosmic microwave background polarimetry.
Corwin Shiu   +13 more
doaj   +1 more source

COMPASS: a 2.6m telescope for CMBR polarization studies [PDF]

open access: yes, 2002
COMPASS (COsmic Microwave Polarization at Small Scale) is an experiment devoted to measuring the polarization of the CMBR.
Dall'Oglio, G.   +11 more
core   +1 more source

Meningovascular Inflammation in Cerebral Amyloid Angiopathy‐Related Cortical Superficial Siderosis

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT The role of inflammation in cortical superficial siderosis (cSS), a marker of cerebral amyloid angiopathy (CAA) linked to high hemorrhage risk, is unclear. We examined 15 patients with cSS using 3 T post‐contrast vessel wall MRI (VWI) and CSF analysis.
Philipp Arndt   +8 more
wiley   +1 more source

Simons Observatory: Predeployment Performance of a Large Aperture Telescope Optics Tube in the 90 and 150 GHz Spectral Bands

open access: yesThe Astrophysical Journal Supplement Series
The Simons Observatory will map the temperature and polarization over half of the sky at millimeter wavelengths in six spectral bands from the Atacama Desert in Chile.
Carlos E. Sierra   +44 more
doaj   +1 more source

Home - About - Disclaimer - Privacy