QSO Episodic Life Times and the Lack of Absorption from Fast Moving Galaxy Winds

Details QSO Episodic Life Times and the Lack of Absorption from Fast Moving Galaxy Winds QSO Episodic Life Times and the Lack of Absorption from Fast Moving Galaxy Winds

Dec 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21460315t&link_type=abstract

American Astronomical Society, AAS Meeting #214, #603.15

Astronomy and Astrophysics

Astronomy

Scientific paper

The first large sample of absorption lines in the spectra of pairs of QSOs that are close in the sky contains some surprises. The absorbers in the paired QSOs have very similar redshifts, within 200 km/s, as if the absorption is from slow moving blue and not red galaxies. The absorption is not from winds flowing out of galaxies at high velocities, suggesting that the metals entered the intergalactic medium at earlier times.
We see no change in the absorption from neutral hydrogen in front of QSOs, and an increase in absorption to 6 Mpc behind QSOs. Either the QSO UV is emitted from the side facing us only, or these low luminosity QSOs emit for under 1 Myr at the intensity we seen. Supported by the NSF.

Affiliated with

Also associated with

No associations

Rating

QSO Episodic Life Times and the Lack of Absorption from Fast Moving Galaxy Winds does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with QSO Episodic Life Times and the Lack of Absorption from Fast Moving Galaxy Winds, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and QSO Episodic Life Times and the Lack of Absorption from Fast Moving Galaxy Winds will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1766283