Browsing Dr. Martin Connors by Issue Date
Now showing items 21-40 of 44
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Cross Meridian Currents in Storms and Sawtooth Events
(2006-11-17)Automated Forward Modeling (AFM) is an inversion technique based on magnetic data alone, which can indicate physical parameters associated with electrojets and field-aligned currents. From perturbations along a meridian, ... -
Simultaneous ground and satellite observations of an isolated proton arc at subauroral latitudes
(Journal of Geophysical Research, 2007)We observed an isolated proton arc at the Athabasca station MLAT: 62◦N) in Canada on 5 September, 2005, using a ground-based allsky imager at wavelengths of 557.7 nm, 630.0 nm, and 486.1 nm (Hβ). This arc is similar to ... -
Athabasca University Initiatives Supporting THEMIS
(2007-02-20)Since the installation of a UCLA ‘small’ magnetometer in 1998, Athabasca University has made great strides in installing infrastructure in Canada for space science, culminating with the recent expansion of Athabasca ... -
May 25, 2007 Meteor
(Please contact Martin Connors for more information: martinc@athabascau.ca, 2007-05-31)The file shows a view of the whole sky on Friday May 25 at 1:07:20 am with data from 1:07:24 superposed. This shows the meteor track in the southern sky, inside the box near the bottom along with the start point just ... -
ASTR 210 Natural Sky Draft Cover
(2007-07-26)Night sky at Athabasca with Athabasca University Robotic Telescope in foreground. -
Space Physics: Aurora Borealis
(2007-08-13)Cluster data was used to examine the magnetospheric boundary and more particularly the tail. Harris sheet fits were done in a dynamic fashion that allows flapping to be quantified. -
Time Evolution of the Substorm Current Wedge from Ground and Space-based Magnetic Fields
(2007-10-05)Over the past several years, intensive efforts have resulted in a significant improvement in the ground instrumentation for auroral studies in North America. A major part of this is due to the THEMIS ground program, both ... -
Onsets and Flapping Studied Using a Dynamic Harris Sheet Model
(2007-10-31)We have developed a nonlinear fitting routine for the Harris current sheet based on magnetic data, and applied it to 71 plasma sheet crossings by Cluster. In most cases this simple fit appeared to represent the magnetic ... -
Inner solar system dynamical analogs of plutinos
(2007-11-20)By studying orbits of asteroids potentially in 3:2 exterior mean motion resonance with Earth, Venus, and Mars, we have found plutino analogs. We identify at least 27 objects in the inner solar system dynamically protected ... -
Progress on Low-Cost Pulse-Counting Magnetometers for Geomagnetic Studies
(2007-11-28)"what the world needs now is a good $500 magnetometer" -
Time Evolution of the Substorm Current Wedge from Ground and Space-based Magnetic Fields
(2007-12-19)Over the past several years, intensive efforts have resulted in a significant improvement in the ground instrumentation for auroral studies in North America. A major part of this is due to the THEMIS ground program, both ... -
An Evening Sector Ps 6 - Omega Band Event
(2008-01-29)Abstract. Ps 6 magnetic disturbances and associated optical forms known as omega bands are usually associated with the morning sector. Some evidence for similar phenomenology in the evening sector has been presented ... -
Automated Regional Modelling (ARM) for characterization of the substorm current wedge
(2008-04-30)Some characteristics of substorms may be determined through use of an electrojet forward modelling approach. These include the amplitude of cross-meridian electric current (0.2 to 1 MA typically), timescales (about 20 ... -
Automated Forward Modelling and its Results for Substorms and Sawtooth Events
(2008-06-18)Automated Forward Modelling is used to contrast quantitative aspects of substorms and sawtooth events. -
A One-meter Robotic Telescope for Western Canada
(2008-10-11)1-m class telescopes are arguably the workhorses of modern astronomy and represent an excellent return of science for a relatively modest capital investment. Such instruments can be used in large-field survey work, ...