links, delicious links

Link to Intro to Astronomical Data Analysis class at UW,


http://www.astro.washington.edu/courses/astro480/

which has links to weather forecasts, databases, and other things, including

-tutorial into IRAF, (Image Reduction and Analysis Facility) which is astronomy specific
-assignments and final projects for an actual astronomy class

format for scientific readings

For every post on a reading, especially for research papers at the top I should put

Author:
Title:
Date Written:
Subject Area: (specific as possible)
Source Website

I wonder if there is a way to automatically do this?


try to write about the following:

-Summary of significant ideas
-My reaction to study, research
-Questions I have

Sprial Galaxy, Messier 101, with right ascension, declination explanations

http://www.seds.org/messier/m/m101.html

Right Ascension	14 : 03.2 (h:m)
Declination	+54 : 21 (deg:m)
Distance	27000 (kly)
Visual Brightness	7.9 (mag)
Apparent Dimension	22.0 (arc min)

Right Ascension --> Longitude
Declination--> Latitude

• An object on the celestial equator has a declination of 0°.
• An object at the celestial north pole has a declination of +90°.
• An object at the celestial south pole has a declination of −90°.

For "right ascension, the zero point is known as the first point of Aries, which is the place in the sky where the Sun crosses the celestial equator at the March equinox."

"Since a complete circle has 360 degrees, an hour of right ascension is equal to ¹⁄₂₄ of this, or 15 degrees of arc, a single minute of right ascension equal to 15 minutes of arc, and a second of right ascension equal to 15 seconds of arc.

Earth's equator, as shown below

Research into Radio Telescope Project Proposal

Cygnus A is one of the main targets for the Radio Telescope. Cygnus A is one of the strongest radio wave emitters in the sky. It produces two jets of electromagnetic waves moving in opposite directions from the center of the galaxy.

http://en.wikipedia.org/wiki/Cygnus_A

















Astronomy Facts to know

coordinates of celestial objects on the celestial sphere
Hubbles Equation of Expansion of Universe


http://iopscience.iop.org/1538-3881/127/6/3587/pdf/1538-3881_127_6_3587.pdf

Above is a link to a paper that is somewhat interesting. It talks about the system of coordinates used to designate locations of astronomical objects. It is called the International Celestial Reference Frame, and is based on the location of some 200 objects that have stable positions in the sky.
Here are some comments on the International Celestial Reference Frame,
"The ICRF has accomplished its primary goal of providing
an accurate and stable frame conceptually independent of the
motion of Earth in space. However, from its inception, it has
been known that the ICRF has a less than desirable density of
sources (Ma et al. 1998), with an average of only about one
object per 8 square degrees on the sky (Charlot et al. 2000).
In addition, the distribution of the ICRF sources on the sky
is largely nonuniform. The deficit of sources is particularly
pronounced in the southern hemisphere"
It makes sense that the Southern Hemisphere does not have a lot of source stars.


http://metaresearch.org/cosmology/gps-relativity.asp

Above is a link that seems to question special relativity. It discusses and compares Lorentzian Relativity with Special Relativity. One of the key differences with Lorentzian Relativity is that there is a preferred frame. This article also seems to indicate that general and special relativistic corrections have not been proven for satelites. I don't have much background to dispute this either way.

http://adsabs.harvard.edu/full/1991ApJ...383..554C

Above is a link to a research paper written about Cygnus A. Apparaently, a Jet Model has been developed for powerful Radio Galaxies, and Cygnus A fits into this category. These jets are caused by particle acceleration at hot spots and outflow into radio lobes. Energy is lost due to synchrotron radiation,

http://en.wikipedia.org/wiki/Synchrotron_radiation

which is something that Jeff has talked a lot about, I believe with Jupiter. Synchrotron_Radiation is essentially radiation that is emitted when charged particles are accelerated to incredibly high speeds, close to the speed of light.
This paper talks about synchrotron spectral aging theory, which lead me to the spectral index.
"the spectral index of a source is a measure of the dependence of radiative flux density on frequency" ("spectral index" Wikipedia) I should practice with citing sources, because I have gotten really out of practice.
From the below abstract,
http://adsabs.harvard.edu/abs/1985ApJ...291...52M,

It appears that synchrotron aging is the loss of energy due to synchrotron radiation. This article says that the particles reach speeds of 10,000-30,000 km/s, which 1/3c- c. That is definitely fast.

http://reylab.bidmc.harvard.edu/pubs/1990/circulation-1990-81-1803.pdf

Here is an article I ran into, which, in its intro, talks about how fourier analysis is done on heart rates, to determine sympathetic and vagal influences. I do not know what these are, but I have not thought about using fourier analysis on heart beats.



THIS PROJECT represents what we are shooting for with the project:
http://www.signalone.com/radioastronomy/telescope/
It has example data for free hydrogen scans.



Here is another cool website. This could be a cool thing to center an astronomy club on, with the SID project, mentioned here

http://www.radio-astronomy.org/node/142

The Stanford Solar Website is also interesting

http://solar-center.stanford.edu/SID/sidmonitor/


Well, this is an epic post, and it continues. 21 cm radiation, via wikipedia.

http://en.wikipedia.org/wiki/Hydrogen_line

Here is another cool website, with pictures of different solar system objects

http://photojournal.jpl.nasa.gov/index.html

And so it ends.

Rainbows

Wikipedia article is really good, shows exactly the picture I was trying to think about when we saw rainbows forming more than half a circle in glacier. You know where wikipedia is.