Cross-correlation studies as a probe of reionization physics

Simple item page
dc.creatorSlosar, Anze
dc.creatorCooray, Asantha
dc.creatorSilk, Joseph
dc.date2007-01-19
dc.date2007-02-09
dc.date.accessioned2026-07-07T10:21:34Z
dc.date.available2026-07-07T10:21:34Z
dc.descriptionThe process of reionization is now believed to have proceeded in an orchestrated manner beginning with UV photons emitted by high redshift galaxies containing a large fraction of Population III stars carving out ionised regions around them. The physics during this era can be studied with a combination of redshifted 21-cm spin-flip transition tracing neutral hydrogen gas, IR emission from massive primordial stars that trace the global star-formation rate during reionization, and the imprint of hot-electrons in first supernovae remnants Compton-cooling off of cosmic microwave background (CMB) radiation through the Sunyaev-Zel'dovich effect. While these individual effects and their observable signatures have been advocated as probes of reionization history, here we show how cross-correlation studies between these signals can be used to further understand physics during reionization. Cross-correlation studies are advantageous since the measurable statistics do not suffer in the same manner from foregrounds and systematic effects as is the case of auto-correlation function measurements. We discuss the prospects for detecting various cross-correlation statistics using present and next generation experiments and the information related to reionization captured by them.
dc.descriptionRevised version of a paper submitted to MNRAS in Dec 06; v2: updated references, matches version accepted by MNRAS
dc.identifierhttps://arxiv.org/abs/astro-ph/0701571
dc.identifierhttp://arxiv.org/abs/astro-ph/0701571
dc.identifierMon.Not.Roy.Astron.Soc.377:168-178,2007
dc.identifierdoi:10.1111/j.1365-2966.2007.11584.x
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/175216
dc.subjectAstrophysics
dc.titleCross-correlation studies as a probe of reionization physics
dc.typetext

Files

Collections

arXiv