Smooth boundaries to cosmological HII regions from galaxy clustering

Details Smooth boundaries to cosmological HII regions from galaxy clustering Smooth boundaries to cosmological HII regions from galaxy clustering

Jan 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007mnras.374..960w&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 374, Issue 3, pp. 960-964.

Astronomy and Astrophysics

Astronomy

9

Galaxies: High-Redshift, Quasars: General, Cosmology: Theory

Scientific paper

The HII regions around quasars and galaxies at redshifts beyond the epoch of reionization will provide prime targets for upcoming 21-cm campaigns using a new generation of low-frequency radio observatories. Here we show that the boundaries of these HII regions will not be sharp. Rather, the clustering of sources near massive galaxies results in a neutral fraction that rises gradually towards large radii from an interior value near zero. A neutral fraction corresponding to the global background value is typically reached at a distance of 2-5 times the radius of the HII region around the central massive galaxy.

Affiliated with

Also associated with

No associations

Rating

Smooth boundaries to cosmological HII regions from galaxy clustering 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 Smooth boundaries to cosmological HII regions from galaxy clustering, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Smooth boundaries to cosmological HII regions from galaxy clustering will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1241421