The Milky Way is twice the size we thought it was

  • Thread starter Thread starter SF
  • Start date Start date
  • Tags Tags
    Milky way
AI Thread Summary
University of Sydney scientists have determined that the Milky Way galaxy is twice as wide as previously estimated, measuring approximately 100,000 light years across and 12,000 light years thick. Led by Professor Bryan Gaensler, the team utilized publicly available data and spreadsheet analysis, demonstrating that significant scientific discoveries can be made without expensive equipment. The findings challenge previous assumptions about the galaxy's dimensions and highlight the importance of accessible data in scientific research. While some participants questioned the reliability of online data sources, it was noted that many scientists share their findings on platforms like arXiv and Harvard's ADS. This research underscores the evolving landscape of astrophysics and data accessibility.
SF
It took just a couple of hours using data available on the internet for University of Sydney scientists to discover that the Milky Way is twice as wide as previously thought.


Astrophysicist Professor Bryan Gaensler led a team that has found that our galaxy - a flattened spiral about 100,000 light years across - is 12,000 light years thick, not the 6,000 light years that had been previously thought.


Proving not all science requires big, expensive apparatus, Professor Gaensler and colleagues, Dr Greg Madsen, Dr Shami Chatterjee and PhD student Ann Mao, downloaded data from the internet and analysed it in a spreadsheet.

http://www.usyd.edu.au/news/84.html?newsstoryid=2163
 
Astronomy news on Phys.org
Sounds all most to simple, is there that much reliable info on the web?
 
lots of scientists will put the data they produced online. You canf find links in their articles
at http://adswww.harvard.edu/index.html or arxiv.
I can't find a scientific publication by those authors about this however, aside from the
sidney university press release
 
TL;DR Summary: In 3 years, the Square Kilometre Array (SKA) telescope (or rather, a system of telescopes) should be put into operation. In case of failure to detect alien signals, it will further expand the radius of the so-called silence (or rather, radio silence) of the Universe. Is there any sense in this or is blissful ignorance better? In 3 years, the Square Kilometre Array (SKA) telescope (or rather, a system of telescopes) should be put into operation. In case of failure to detect...
Thread 'Could gamma-ray bursts have an intragalactic origin?'
This is indirectly evidenced by a map of the distribution of gamma-ray bursts in the night sky, made in the form of an elongated globe. And also the weakening of gamma radiation by the disk and the center of the Milky Way, which leads to anisotropy in the possibilities of observing gamma-ray bursts. My line of reasoning is as follows: 1. Gamma radiation should be absorbed to some extent by dust and other components of the interstellar medium. As a result, with an extragalactic origin, fewer...
This thread is dedicated to the beauty and awesomeness of our Universe. If you feel like it, please share video clips and photos (or nice animations) of space and objects in space in this thread. Your posts, clips and photos may by all means include scientific information; that does not make it less beautiful to me (n.b. the posts must of course comply with the PF guidelines, i.e. regarding science, only mainstream science is allowed, fringe/pseudoscience is not allowed). n.b. I start this...
Back
Top