Miscellaneous Work
In addition to ``official''
research publications,
a significant fraction of a scientist's effort is often
devoted to less formal presentations of their work.
For example, I have found that it is useful to have comprehensive,
textbook-like notes on topics that may be well-developed,
but do not yet occupy textbooks in quite a useful enough form.
The papers and presentations listed here
are divided into the following categories:
Where available, there are also links to full online versions of
articles, notes, and presentations.
These technical
notes are Copyright Steven R. Cranmer, 1996-2008. I may publish
them somewhere, someday, in some form or another, but for now, the
author [me] grants the right to copy and distribute these files,
provided they remain unmodified, original authorship is retained, and
they not be used in any widely-distributed or commercial publication.
If the reader would like to cite anything presented
in these documents, please contact me, because most probably there
are better (original) sources to cite....
-
On the Synthesis of Solar
Coronal UV Emission Diagnostics:
Describes radiative transfer in optically-thin ultraviolet
spectral lines, resonant scattering redistribution, and ``Doppler dimming''
(written in 1997; probably should be updated).
[Available in
gzipped postscript (72 Kbytes)
and
PDF (187 Kbytes) formats]
-
On the Synthesis of Coronal
White-Light Polarization Diagnostics:
Describes polarized radiative transfer of Thomson-scattered
continuum light and the derivation of various electron density
diagnostic formulae.
[Available in
gzipped postscript (65 Kbytes)
and
PDF (138 Kbytes) formats]
-
CUES: An Introduction to Coronal Velocity Distributions
and the Modeling of UVCS/SOHO Emission Lines:
An undergraduate-level documentation for the CUES empirical
modeling code that is distributed on the
UVCS
Tutorial Web Page.
May be useful as a stand-alone introduction.
[Available in
gzipped postscript (123 Kbytes)
and
PDF (251 Kbytes) formats]
-
UVCS/SOHO Observations of Jupiter in January 1997:
An Independent Calibration of the White Light Channel:
An analysis of data taken to provide an absolute photometric
calibration of one of the channels on the UVCS instrument.
[Revised version: June 2001]
[Available in
gzipped postscript (239 Kbytes)
and
PDF (430 Kbytes) formats]
-
Solar Wind Physics with Solar Probe:
An outline (from 1999) of how in situ data from the proposed
Solar Probe mission could be helpful in answering basic
questions about coronal heating and the acceleration of the
high-speed solar wind. 20 specific issues are discussed relating
to particle velocity distribution and field fluctuation measurements.
[Available in
gzipped postscript (96 Kbytes)
and
PDF (181 Kbytes) formats]
See also a more recent (2005) set of
science defintion inputs for the Solar Probe mission.
-
Potential Hot/Massive Star Areas of Interest for
Stellar Imager:
A brief summary of some major issues concerning hot and massive
stars that could be addressed with Stellar Imager,
a NASA Vision Mission that would use ultra-high angular resolution
at ultraviolet wavelengths to image the surfaces of stars and probe
their interiors with asteroseismology.
[Available in
gzipped postscript (385 Kbytes)
and
PDF (141 Kbytes) formats]
-
Monte Carlo solutions to diffusion-like equations:
A practical application of the Ito Calculus:
Unoriginal notes that describe exact rules for updating the
positions of particles in a Monte Carlo model when the particles
obey a range of diffusion-type partial differential equations.
Nothing really new; it was just helpful for me to lay it all out
in detail for the full range of useful cases.
[Available in
PDF (68 Kbytes) format]
-
On Competing Models of Coronal Heating and Solar Wind
Acceleration: The Debate in '08:
In preparation for lively debate at the May 2008 SPD/AGU Meeting
in Fort Lauderdale, this document was written to briefly lay out my
own view of the evolving controversy over how the solar wind is
accelerated. It is still unknown to what extent the solar wind is fed
by flux tubes that remain open (and are energized by footpoint-driven
wavelike fluctuations), and to what extent much of the mass and
energy is input more intermittently from closed loops into the
open-field regions.
[Available as an arXiv preprint:
arXiv:0804.3058
. . .
Subtitle inspired by Ali and Frazier
(1975)]
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Steven Cranmer's
Home Page,
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Home Page.
Articles for Non-Specialists