Note to users. If you're seeing this message, it means that your browser cannot find this page's style/presentation instructions -- or possibly that you are using a browser that does not support current Web standards. Find out more about why this message is appearing, and what you can do to make your experience of our site the best it can be.
GoGreen Membership

Site Tools

  • AAAS
  • Subscribe
  • Feedback

Site Search

Search Advanced

Science 17 January 2003:
Vol. 299. no. 5605, p. 319
DOI: 10.1126/science.299.5605.319d
Prev | Table of Contents | Next

NetWatch

Instead of ending with the bang of a supernova, most stars go out with a whimper, shriveling into an ember about the size of Earth that will slowly burn out. Known as white dwarfs, these small, faint objects might help scientists gauge the age of our galaxy's disk, and some astronomers suspect that mobs of them loitering on the edge of the Milky Way account for some of the long-sought dark matter. The White Dwarf Database, created by astronomer Jay Holberg of the University of Arizona, Tucson, profiles more than 2100 of these elderly stars. Each entry supplies vital statistics such as the dwarf's coordinates, radius, temperature, gravitational strength, and spectrum. Within the next few months, the size of the database will double when Holberg adds the latest findings from the Sloan Digital Sky Survey, which is mapping one-fourth of the sky.

procyon.lpl.arizona.edu/WD

ADVERTISEMENT
Click Me!

ADVERTISEMENT
Click Me!

To Advertise     Find Products

Science. ISSN 0036-8075 (print), 1095-9203 (online)