Page created by Andrew Brouillard. Michael Walker edited it in the spring of 2012.

Abell 2029

external image abell2029_comp.jpg

Abell 2029 is a large galactic cluster, containing thousands of galaxies. Abell 2029 can be seen in the constellation Serpens, and is more than a billion light years away. The combined gravity of the galaxies within Abell 2029 traps gas, and heats it to more than 100 million degrees. This gas emits x-rays (pictured red), and outputs light that is 2 trillion times brighter than our sun. About 70 to 90 percent of the cluster's mass is cold dark matter, equivalent to more than a hundred trillion suns. At the center of the galactic cluster is its largest galaxy, IC 1101, which is also the largest galaxy in the universe. IC 1101 is estimated to be 5.6 to 6 million light years across; it is about 80 times bigger than the milky way, which is about 100,000 light years across.

1. Abell 2029 - Chandra

This web site was very helpful. It gave me a lot of useful information and taught me a lot. The information seemed really accurate. Its readability was clear but could have been better. They could have made it easier to understand. It was easy to navigate because it was just one page. The page was revised in February of 2009.

2. Abell 2029 - Wikipedia

This web site was also helpful. The information seemed accurate as well. It was very clear and readable. And it was also very easy to navigate because it was just one page. The page was modified in April of 2010.

3. Central Galaxy of Abell 2029

Very straight forward and didn’t give a lot of information. I already had all the information that was on it. It wasn’t really reliable because it was short. It was clear and it was easy to navigate. I couldn’t find when it was published.

4. Spiral Galaxy Rotation Curves in Abell 2029

This site was also helpful. It gave a lot of information. It was reliable but I had a lot of the information already. The information was accurate. The only negative thing about it was that the information was hard to understand because of how it was worded. And it was also very easy to navigate

5. Abell 2029

The last site was good but short. I already had all the information on it was I wasn’t really reliable. The information was accurate. It was clear and easy to navigate because it was so short.

6. NASA - Dark Energy

The site is short, easy to read, and has a picture of Abell 2029, as well as some animations showing what appears to be an animated model of Abell 2029. It was last updated May, 18th, 2004 and is very credible. Reviewed by Michael Walker 5.20.12.

7. The Largest Galaxy

This site describes, rather well, the existence, and life cycle of galaxies in the center of galaxy clusters like Abell 2029. This site is short, and, though it is from the IV League Cornell University, it is written for the average person, and is easy to read. The site was last updated in 2002 by Karen (who's link is included in the page). The information appears credible. Reviewed by Michael Walker 5.20.12.

8. XMM-Newton Slew Survery image of Abell 2029

This site analyses Abell 2029's x-rays, superimposed on a negative visual image. The site hosts a short description, but a few invaluable links. Again this site and its information is rather credible, though there is no date or autorship information. Reviewed by Michael Walker 5.20.12.

9. Abell 2029

This site is pretty well presented in the way of information. A short bio of Abell 2029 (with remarkable semblance to the above description) is presented as well as a short bit of data. The information is understandable. The site is from what appears to be a university in Koeln, Germany, and is written by a H. Heintzmann in 2005. Reviewed by Michael Walker 5.20.12.

10. Specifications pdf

This is a pdf, created most likely by a student, detailing all of the technical, quantifiable information that Abell 2029 has to offer. This information is very esoteric, and would require some study to understand. The information, though, would be very well suited to an in depth analysis of the cluster. Three authors are given, and the information was created in october of 2011. Reviewed by Michael Walker 5.20.12.