Local Bubble Totally Explained

Everything about The Local Bubble totally explained

The Local Bubble is a cavity in the interstellar medium (ISM) of the Orion Arm of the Milky Way. It is at least 300 light years across and has a neutral hydrogen density approximately one tenth of the 0.5 atoms per cubic centimetre average for the ISM in the Milky Way. The hot diffuse gas in the Local Bubble emits X-rays.
   The Solar System has been travelling through the Local Bubble for the last 3 million years. Its current location lies in the Local Interstellar Cloud or Local Fluff, a minor region of denser material within the Bubble. The cloud formed where the Local Bubble and the Loop I Bubble met. The gas within the LIC has a density of approximately 0.1 atoms per cubic centimeter.
   Most astronomers believe that the Local Bubble was formed between some hundreds of thousands to a few million years ago by nearby supernovae that pushed aside gas and dust in the local ISM, leaving behind hot, low density material. The most likely candidate for the remains of this supernova is Geminga, a pulsar in the constellation Gemini.
   The Local Bubble isn't spherical, but seems to be narrower in the galactic plane, becoming somewhat egg-shaped or elliptical, and may widen above and below the galactic plane, becoming shaped like an hourglass.
   The Local Bubble abuts other bubbles of less dense ISM, including, in particular, the Loop I Bubble. The Loop I Bubble was created by supernovae and stellar winds in the Scorpius-Centaurus Association, some 500 light years from the Sun. Other bubbles abutting the Local Bubble are the Loop II Bubble and the Loop III Bubble.
   The Loop I Bubble contains star Antares (also known as Alpha Scorpii) as shown on the diagram above right.

Further Information

Get more info on 'Local Bubble'.

External Link Exchanges

Do you know how hard it is to get a link from a large encyclopaedia? Well we're different and will prove it. To get a link from us just add the following HTML to your site on a relevant page:

<a href="http://local_bubble.totallyexplained.com">Local Bubble Totally Explained</a>

Then simply click through this link from your web page. Our crawlers will verify your link, extract the title of your web page and instantly add a link back to it. If you like you can remove the words Totally Explained and embed the link in article text.
As long as your link remains in place, we'll keep our link to you right here. Please play fair - our crawlers are watching. Your site must be closely related to this one's topic. Any kind of spamming, dubious practises or removing the link will result in your link from us being dropped and, potentially, your whole site being banned.