The thermal history of the intergalactic medium^* Export

@article{citeulike:6083686, abstract = {At redshifts z\>\~{}2, most of the baryons reside in the smooth intergalactic medium which is responsible for the low column density Lyalpha forest. This photoheated gas follows a tight temperature-density relation which introduces a cut-off in the distribution of widths of the Lyalpha absorption lines (b-parameters) as a function of column density. We have measured this cut-off in a sample of nine high-resolution, high signal-to-noise ratio quasar spectra and determined the thermal evolution of the intergalactic medium in the redshift range 2.0-4.5. At a redshift z\~{}3, the temperature at the mean density shows a peak and the gas becomes nearly isothermal. We interpret this as evidence for the reionization of Heii.}, archivePrefix = {arXiv}, author = {{Schaye}, J. and {Theuns}, T. and {Rauch}, M. and {Efstathiou}, G. and {Sargent}, W. L. W.}, citeulike-article-id = {6083686}, citeulike-linkout-0 = {http://arxiv.org/abs/astro-ph/9912432}, citeulike-linkout-1 = {http://arxiv.org/pdf/astro-ph/9912432}, citeulike-linkout-2 = {http://dx.doi.org/10.1046/j.1365-8711.2000.03815.x}, citeulike-linkout-3 = {http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=2000MNRAS.318..817S}, doi = {10.1046/j.1365-8711.2000.03815.x}, eprint = {astro-ph/9912432}, journal = {Mon. Not. Roy. Astron. Soc.}, month = {November}, pages = {817--826}, posted-at = {2009-11-08 06:49:14}, priority = {2}, title = {The thermal history of the intergalactic medium^{*}}, url = {http://dx.doi.org/10.1046/j.1365-8711.2000.03815.x}, volume = {318}, year = {2000} }

TY - JOUR ID - citeulike:6083686 L3 - citeulike-article-id:6083686 N2 - At redshifts z>~2, most of the baryons reside in the smooth intergalactic medium which is responsible for the low column density Lyalpha forest. This photoheated gas follows a tight temperature-density relation which introduces a cut-off in the distribution of widths of the Lyalpha absorption lines (b-parameters) as a function of column density. We have measured this cut-off in a sample of nine high-resolution, high signal-to-noise ratio quasar spectra and determined the thermal evolution of the intergalactic medium in the redshift range 2.0-4.5. At a redshift z~3, the temperature at the mean density shows a peak and the gas becomes nearly isothermal. We interpret this as evidence for the reionization of Heii. JF - Mon. Not. Roy. Astron. Soc. EP - 826 TI - The thermal history of the intergalactic medium^{*} VL - 318 SP - 817 AU - {Schaye}, J AU - {Theuns}, T AU - {Rauch}, M AU - {Efstathiou}, G AU - {Sargent}, WLW PY - 2000/November// UR - http://dx.doi.org/10.1046/j.1365-8711.2000.03815.x ER -