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Physical Sciences and Mathematics Commons

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Articles 1 - 7 of 7

Full-Text Articles in Physical Sciences and Mathematics

Whispers From The Cosmos: Listeing To Gravity's Hidden Message, Shane L. Larson Oct 2009

Whispers From The Cosmos: Listeing To Gravity's Hidden Message, Shane L. Larson

Public Talks

No abstract provided.


From The Big Bang To Fossil Butte: The Cosmic Biography Of An Atom, Shane L. Larson Aug 2009

From The Big Bang To Fossil Butte: The Cosmic Biography Of An Atom, Shane L. Larson

Public Talks

No abstract provided.


Rayleigh-Lidar Observations Of Mesospheric Gravity Wave Activity Above Logan, Utah, Durga N. Kafle May 2009

Rayleigh-Lidar Observations Of Mesospheric Gravity Wave Activity Above Logan, Utah, Durga N. Kafle

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A Rayleigh-scatter lidar operated from Utah State University (41.7°N, 111.8°W) for a period spanning 11 years ― 1993 through 2004. Of the 900 nights observed, data on 150 extended to 90 km or above. They were the ones used in these studies related to atmospheric gravity waves (AGWs) between 45 and 90 km. This is the first study of AGWs with an extensive data set that spans the whole mesosphere. Using the temperature and temperature gradient profiles, we produced a climatology of the Brunt-Väisälä (buoyancy) angular frequency squared, N2 (rad/s)2. The minimum and maximum values of N …


Ringworld: Travellers' Tales From Saturn, Shane L. Larson Mar 2009

Ringworld: Travellers' Tales From Saturn, Shane L. Larson

Public Talks

No abstract provided.


Hearing Voices In The Dark: Probing The Gravitational Wave Cosmos With Lisa, Shane L. Larson Mar 2009

Hearing Voices In The Dark: Probing The Gravitational Wave Cosmos With Lisa, Shane L. Larson

Colloquia and Seminars

No abstract provided.


Lisa: Seeing The Cosmos In Low Frequency Gravitational Waves, Shane L. Larson Feb 2009

Lisa: Seeing The Cosmos In Low Frequency Gravitational Waves, Shane L. Larson

Colloquia and Seminars

No abstract provided.


Detecting A Stochastic Gravitational-Wave Background: The Overlap Reduction Function, Lee Samuel Finn, Shane L. Larson, Joseph D. Romano Jan 2009

Detecting A Stochastic Gravitational-Wave Background: The Overlap Reduction Function, Lee Samuel Finn, Shane L. Larson, Joseph D. Romano

All Physics Faculty Publications

Detection of a gravitational-wave stochastic background via ground or space-based gravitational-wave detectors requires the cross correlation of the response of two or more independent detectors. The cross correlation involves a frequency-dependent factor—the so-called overlap reduction function or Hellings-Downs curve—that depends on the relative geometry of each detector pair, i.e., the detector separations and the relative orientation of their antenna patterns (beams). An incorrect formulation of this geometrical factor has appeared in the literature, leading to incorrect conclusions regarding the sensitivity of proposed detectors to a stochastic gravitational-wave background. To rectify these errors and as a reference for future work we …