Back to Home

Blackholes Forum Message

Forums: Atm · Astrophotography · Blackholes · Blackholes2 · CCD · Celestron · Domes · Education
Eyepieces · Meade · Misc. · God and Science · SETI · Software · UFO · XEphem
RSS Button

Home | Discussion Forums | Blackholes I | Post

Be the first pioneers to continue the Astronomy Discussions at our new Astronomy meeting place...
The Space and Astronomy Agora
Photons Are Not Emitted From Black Holes

Forum List | Follow Ups | Post Message | Back to Thread Topics | In Response To
Posted by Richard Ruquist on September 20, 2002 15:45:44 UTC

Except right at the boundary of the event horizon which is the Hawking radiation. Photons that somehow get started near this boundary, but outside of it, will get Red Shifted, but the red shift is small except very close to the event horizon.

Using General Relativity, a theory that has no gravitational field, only geometric distortion of space, the event horizon is where space is being swallowed up by the black hole at the speed of light. Outside the event horizon, the red shift is due to the inward velocity of space. From observations of galaxies and the motion of their stars, the inward component of space velocity is only significant very close to the event horizon, and does not extend out to infinity.

Follow Ups:

    Login to Post
    Additional Information
    About Astronomy Net | Advertise on Astronomy Net | Contact & Comments | Privacy Policy
    Unless otherwise specified, web site content Copyright 1994-2024 John Huggins All Rights Reserved
    Forum posts are Copyright their authors as specified in the heading above the post.
    "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET"
    are trademarks of John Huggins