Title:
Measurements of freely-expanding plasma from hypervelocity impacts
Author(s):
N. Lee; S. Close; D. Lauben; I. Linscott; A. Goel; T. Johnson; J. Yee; A. Fletcher; R. Srama; S. Bugiel; A. Mocker; P. Colestock; S. Green
Journal:
International Journal of Impact Engineering
, Volume 44
Date Published:
2012-1-4
Title:
Analysis of electromagnetic and electrostatic effects of particle impacts on spacecraft
Author(s):
Michael C. Kelley; Stephanie Pancoast; Sigrid Close; Zhenzhen Wang
Journal:
Advances in Space Research
, Volume 49
Date Published:
2012-1-4
Title:
Investigating the Crumbs of Creation Speaker(s):
Sigrid Close
Occasion:
Geophysics Seminar, Stanford University
Date of Talk:
2012-1-12
Title:
A medium-scale traveling ionospheric disturbance observed from the ground and from space
Author(s):
Dymond; K. F.; C. Watts; C. Coker; S. A. Budzien; P. A. Bernhardt; N. Kassim; T. J. Lazio; K. Weiler; P. C. Crane; P. S. Ray; A. Cohen; T. Clarke; L. J. Rickard; G. B. Taylor; F. Schinzel; Y. Pihlstro
Journal:
Radio Science
, Volume 46
, Number RS5010
Date Published:
2011-9-30
Title:
A compressed sensing approach to observing distributed radar targets Author(s):
Ryan Volz and Sigrid Close
Conference:
URSI-GASS
Date Published:
2011-8-15
Title:
Detection and analysis of RF data from hypervelocity impacts Author(s):
Johnson, T., I. Linscott, S. Close, D. Strauss, N. Lee, R. Adamo, A. Mocker, R. Srama, and S. Bugiel
Conference:
3rd AIAA Atmospheric Space Environments Conference
Date Published:
2011-6-27
Title:
Study of Hypervelocity Impact Plasma Expansion Author(s):
Nicolas Lee; Sigrid Close; David Lauben;
Ivan Linscott; Ashish Goel; Theresa Johnson; Ralf Srama; Sebastian Bugiel; Anna Mocker
Conference:
3rd AIAA Atmospheric Space Environments Conference
Date Published:
2011-6-27
Title:
RF Signatures of Hypervelocity Impacts on Spacecraft Author(s):
Sigrid Close; Michael C. Kelley; Alex Fletcher; Nicolas Lee; Patrick Colestock
Conference:
3rd AIAA Atmospheric Space Environments Conference
Date Published:
2011-6-27
Title:
Diffusion of Plasmas from Ablating Meteoroids in the Ionosphere Author(s):
Jonathan Yee; Sigrid Close
Conference:
3rd AIAA Atmospheric Space Environments Conference
Date Published:
2011-6-27
Title:
Tracking and Mitigating Meteoroid Threats to Spacecraft Speaker(s):
Sigrid Close
Occasion:
SETI Institute Colloquium Series
Date of Talk:
2011-5-4
Title:
Hypervelocity electromagnetic signatures from meteoroid impacts on spacecraft Speaker(s):
Sigrid Close
Occasion:
UWO Colloquium
Date of Talk:
2011-5-12
Title:
Comparison of methods of determining meteoroid range rates from linear frequency modulated chirped pulses
Author(s):
Loveland et al.
Journal:
Radio Science
, Volume 46
Date Published:
2011-4-1
Title:
Analysis of ALTAIR 1998 meteor radar data
Author(s):
Zinn et al.
Journal:
JGR
, Volume 116
Date Published:
2011-4-1
Title:
Polarization and scattering of a long-duration meteor trail
Author(s):
Close et al.
Journal:
JGR
, Volume 116
Date Published:
2011-12-4
Title:
Meteoroid head echo polarization features studied by numerical electromagnetics modeling
Author(s):
L. E. Vertatschitsch; J. D. Sahr; P. Colestock; S. Close
Journal:
Radio Science
, Volume 46
, Number RS6016
Date Published:
2011-12-31
Title:
Electrical effects of hypervelocity impacts Author(s):
Ashish Goel, Nicolas Lee, Sigrid Close
Conference:
IAC
Date Published:
2011-10-1
Title:
Development and error analysis of nonlinear ionospheric removal algorithm for ionospheric electron density determination using broadband RF data
Author(s):
Lay et al.
Journal:
JGR
, Volume 116
Date Published:
2011-1-4
Title:
Speaker(s):
Sigrid Close
Occasion:
HEPL Seminar
Date of Talk:
2010-4-1
Details:
We review impactors, ranging from dust to asteroid sizes, and the effects these objects have on Earth's system. We also discuss the plasma formation process when an object enters into Earth's system, or impacts a satellite, and howe can prevent future disasters through better characterization.
Title:
Electromagnetic pulses generated by meteoroid impacts on spacecraft
Author(s):
Close et al.
Journal:
JGR
Date Published:
2010-12-6
Title:
To Boldly Go� Hazards of the Space Environment Speaker(s):
Sigrid Close
Occasion:
AIAA-SF Technical Talk
Date of Talk:
2010-11-19
Title:
From Dust to Asteroids: Impacts on Earth Speaker(s):
Sigrid Close
Occasion:
HPEC Banquet Speaker: Massachusetts Institute of Technology, Lincoln Laboratory
Date of Talk:
2010-1-29
Title:
Remote sensing lower thermosphere wind profiles using non-specular meteor echoes
Author(s):
Oppenheim et al
Journal:
JGR
, Volume 36
Date Published:
2009-5-30
Title:
A comparison of detection sensitivity between ALTAIR and Arecibo meteor observations: Can high power and large aperture radars detect low velocity meteor head-echoes
Author(s):
Janches et al
Journal:
Icarus
, Volume 193
Date Published:
2008-1-30
Title:
Dependence of radar signal strength on frequency and aspect angle of nonspecular meteor trails
Author(s):
Close et al.
Journal:
Journal of Geophysical Research
, Volume 113
Date Published:
2008-1-29
Title:
Plasma and electromagnetic wave simulations of meteors
Author(s):
Dyrud et al
Journal:
Earth, Moon and Planets
, Volume 42
Date Published:
2007-7-30
Title:
Meteoroid structure from radar head echoes
Author(s):
Campbell-Brown and Close
Journal:
Monthly Notices of the Royal Astronomical Society
, Volume 382
Date Published:
2007-12-30
Title:
Meteor head echo radar data: Mass�velocity selection effects
Author(s):
Close et al.
Journal:
Icaurs
, Volume 186
Date Published:
2006-11-29
Title:
A new method for determining meteoroid mass from head echo data
Author(s):
Close et al
Journal:
JGR
, Volume 110
Date Published:
2005-8-30
Title:
Interstellar Meteors
Author(s):
Baggaley et al.
Journal:
Workshop on Dust in Planetary Systems (ESA SP-643)
Date Published:
2005-8-30
Title:
Modelling high-power large-aperture radar meteor trails
Author(s):
Dyrud et al
Journal:
JASTP
, Volume 67
Date Published:
2005-8-30
Title:
Meteor velocity determination with plasma physics
Author(s):
Dyrud et al
Journal:
Atmospheric Chemistry and Physics,
, Volume 4
Date Published:
2004-8-30
Title:
Determination of the meteoroid velocity distribution at the Earth using high-gain radar
Author(s):
Hunt et al
Journal:
Icarus
, Volume 168
Date Published:
2004-8-30
Title:
A technique for calculating meteor plasma density and meteoroid mass from radar head echo scattering
Author(s):
Close et al.
Journal:
Icarus
, Volume 168
Date Published:
2003-11-29
Title:
Interpretation of non-specular radar meteor trails
Author(s):
Dyrud et al
Journal:
GRL
Date Published:
2002-8-30
Title:
Characterization of Leonid meteor head echo data collected using the VHF-UHF Advanced Research Projects Agency Long-Range Tracking and Instrumentation Radar (ALTAIR)
Author(s):
Close et al
Journal:
Radio Science
Date Published:
2002-8-30
Title:
Two-frequency meteor observations using the Advanced Research Project Agency Long Range Tracking and Instrumentation Radar (ALTAIR)
Author(s):
Hunt et al
Journal:
Proceedings from Meteoroids 2001
Date Published:
2001-8-30
Title:
Astronomical and physical data for meteoroids recorded by the ALTAIR radar
Author(s):
Brown et al
Journal:
Proceedings from Meteoroids 2001
, Volume 2001
Date Published:
2001-8-30
Title:
Analysis of Perseid meteor head echo data collected using the Advanced Research Projects Agency Long-Range Tracking and Instrumentation Radar (ALTAIR)
Author(s):
Close et al
Journal:
Radio Science
Date Published:
2000-8-30
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