<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Yang, Yujin</style></author><author><style face="normal" font="default" size="100%">Zabludoff, Ann</style></author><author><style face="normal" font="default" size="100%">Tremonti, Christy</style></author><author><style face="normal" font="default" size="100%">Eisenstein, Daniel</style></author><author><style face="normal" font="default" size="100%">Davé, Romeel</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Extended Lyα Nebulae at z sime 2.3: An Extremely Rare and Strongly Clustered Population?</style></title><secondary-title><style face="normal" font="default" size="100%">The Astrophysical Journal</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2009</style></year><pub-dates><date><style  face="normal" font="default" size="100%">March 1, 2009</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://adsabs.harvard.edu/abs/2009ApJ...693.1579Y</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">693</style></volume><pages><style face="normal" font="default" size="100%">1579-1587</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;To obtain an unbiased sample of bright Lyα blobs (L_{Lyα}≳ 10^{43} erg s&lt;sup&gt;-1&lt;/sup&gt;), we have undertaken a blind,wide-field, narrowband imaging survey in the National Optical AstronomyObservatory Deep Wide Field Survey Boötes field with the StewardBok 2.3 m telescope. After searching over 4.82 deg&lt;sup&gt;2&lt;/sup&gt; at z =2.3, we discover four Lyα blobs with L_{Lyα} = 1.6-5.3× 10&lt;sup&gt;43&lt;/sup&gt; erg s&lt;sup&gt;-1&lt;/sup&gt;, isophotal areas of 28-57⊓⊔, and broad Lyα line profiles (Δv = 900-1250km  s&lt;sup&gt;-1&lt;/sup&gt;). In contrast with the extended Lyα halosassociated with high-z radio galaxies, none of our four blobs areradio-loud. The X-ray luminosities and optical spectra of these blobsare diverse. Two blobs (3 and 4) are X-ray detected with L&lt;sub&gt;X&lt;/sub&gt;(2-7 keV) = 2-4 × 10&lt;sup&gt;44&lt;/sup&gt; erg s&lt;sup&gt;-1&lt;/sup&gt; and havebroad optical emission lines (C IV) characteristic of active galactic&lt;/p&gt;
</style></abstract><notes><style face="normal" font="default" size="100%">n/a</style></notes><custom3><style face="normal" font="default" size="100%">eprintid: arXiv:0811.3446</style></custom3></record></records></xml>