Sources of background light on space based laser communications links

2018 ◽  
Author(s):  
Thomas C. Farrell
Keyword(s):  
Background Light ◽  
Laser Communications

Space laser communications systems for the eighties

1980 ◽  
Author(s):  
M. ROSS ◽  
J. WOLF ◽  
R. LINFORD ◽  
J. ABERNATHY
Keyword(s):  
Communications Systems ◽  
Laser Communications

Space Qualification for an Intersatellite Laser Communications System

1993 ◽  
Author(s):  
Johnny A. Taylor ◽  
Allen D. Pillsbury ◽  
Don M. Boroson
Keyword(s):  
Laser Communications ◽  
Communications System

Ultra-light weight telescope coupled with portable AO system for laser communications applications

2006 ◽  
Author(s):  
Sergio R. Restaino ◽  
Ty Martinez ◽  
Jonathan R. Andrews ◽  
Christopher C. Wilcox ◽  
Freddie Santiago ◽  
...  
Keyword(s):  
Light Weight ◽  
Laser Communications

scholarly journals Background Light from Population III Stars

1987 ◽  
Vol 117 ◽  
pp. 414-414
Author(s):  
Jonathan C. McDowell
Keyword(s):  
Dark Matter ◽  
Background Radiation ◽  
Large Fraction ◽  
Rest Mass ◽  
Critical Density ◽  
Density Parameter ◽  
Extragalactic Background Light ◽  
Background Light ◽  
Far Ultraviolet ◽  
The Universe

It has been proposed (e.g. Carr, Bond and Arnett 1984) that the first generation of stars may have been Very Massive Objects (VMOs, of mass above 200 M⊙) which existed at large redshifts and left a large fraction of the mass of the universe in black hole remnants which now provide the dynamical ‘dark matter’. The radiation from these stars would be present today as extragalactic background light. For stars with density parameter Ω* which convert a fraction ϵ of their rest-mass to radiation at a redshift of z, the energy density of background radiation in units of the critical density is ΩR = εΩ* / (1+z). The VMOs would be far-ultraviolet sources with effective temperatures of 105 K. If the radiation is not absorbed, the constraints provided by measurements of background radiation imply (for H =50 km/s/Mpc) that the stars cannot close the universe unless they formed at a redshift of 40 or more. To provide the dark matter (of one-tenth closure density) the optical limits imply that they must have existed at redshifts above 25.

Dark matter and background light

2004 ◽  
Vol 402 (5-6) ◽  
pp. 267-406 ◽  
Author(s):  
J.M. Overduin ◽  
P.S. Wesson
Keyword(s):  
Dark Matter ◽  
Background Light

Background light measurements in the deep ocean

1986 ◽  
Vol 9 (2) ◽  
pp. 642-652 ◽  
Author(s):  
T. Aoki ◽  
T. Kitamura ◽  
S. Matsuno ◽  
K. Mitsui ◽  
Y. Ohashi ◽  
...  
Keyword(s):  
Deep Ocean ◽  
Background Light
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