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
Login

Be the first pioneers to continue the Astronomy Discussions at our new Astronomy meeting place...
The Space and Astronomy Agora
Gravatational Redshift

Forum List | Follow Ups | Post Message | Back to Thread Topics
Posted by John T. on October 21, 2000 00:23:45 UTC

Does anyone know how much of an effect gravatational redshift has on the redshift that we detect from quasars? As I`m sure most know blackholes sucking in matter are believed to be the energy source for quasars. Also quasars are the most remote detectable object in the universe and thus exhibit a large redshift because of their large distance and thus large velocity (via Hubble`s constant). However, I would think that not all of this redshift is from the Doppler effect and some would be from the gravatational redshift created by the core`s blackhole. Gravatational redshift occurs because light loses energy when trying to escape from a gravity field thus causing the wavelength to increase or to redshift. Anyways it would seem that if you don`t take this gravatational redshift into account then the quasar would appear further away than it is when using the Hubble`s law which relates redshift to distance.

Thanks,
John

Follow Ups:

Login to Post
Additional Information
Google
 
Web www.astronomy.net
DayNightLine
About Astronomy Net | Advertise on Astronomy Net | Contact & Comments | Privacy Policy
Unless otherwise specified, web site content Copyright 1994-2018 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