• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>PASJ: Publications of the Astronomical Society of Japan >Exploring Galaxy Evolution from Infrared Number Counts and Cosmic Infrared Background
【24h】

Exploring Galaxy Evolution from Infrared Number Counts and Cosmic Infrared Background

机译：从红外数计数和宇宙红外背景探索银河系进化

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Recentlyreportedinfrared(IR)galaxynumbercountsandcosmicinfraredbackground(CIRB)allsuggestthatgalaxieshaveexperiencedstrongevolutionsometimeintheirlifetime.Westatisticallyestimatethegalaxyevolutionhistoryfromthesedata.Wefindthatanorder-of-magnitudeincreaseofthefar-infrared(FIR)luminosityatredshift$$z=0.5$$a€“$$1.0$$isnecessarytoreproducetheveryhighCIRBintensityat140$$mum$$reportedbyHauseretal.(1998,AAA070.161.559)anddecreasesto,evenatmost,afactorof10toward$$zsim5$$,thoughmanyvariantsareallowedwithintheseconstraints.ThisevolutionhistoryalsosatisfiestheconstraintsfromthegalaxynumbercountsobtainedbyIRAS,ISOand,roughly,SCUBA.TherapidevolutionofthecomovingIRluminositydensityrequiredfromtheCIRBwellreproducestheverysteepslopeofgalaxynumbercountsobtainedbyISO.Wealsoestimatethecosmicstarformationhistory(SFH)fromtheobtainedFIRluminositydensity,consideringtheeffectofthemetalenrichmentingalaxies.ThederivedSFHincreasessteeplywithredshiftin$$0ltzlt0.75$$,andbecomesflatorevendeclinesat$$zgt0.75$$.ThisisconsistentwiththeSFHestimatedfromthereportedultravioletluminositydensity.Inaddition,wepresenttheperformanceoftheJapaneseASTRO-FFIRgalaxysurvey.Weshowtheexpectednumbercountsinthesurvey.Wealsoevaluatehowlargeaskyareaisnecessarytoderivesecureinformationofgalaxyevolutionupto$$zsim1$$fromthesurvey,andfindthatatleast$$50$$a€“$$300;mathrm{deg}^2$$isrequired.
机译：Recentlyreportedinfrared（IR）galaxynumbercountsandcosmicinfraredbackground（CIRB）allsuggestthatgalaxieshaveexperiencedstrongevolutionsometimeintheirlifetime.Westatisticallyestimatethegalaxyevolutionhistoryfromthesedata.Wefindthatanorder-的-magnitudeincreaseofthefar红外（FIR）luminosityatredshift $$ Z = 0.5 $$一个€“$$ 1.0 $$ isnecessarytoreproducetheveryhighCIRBintensityat140 $$妈妈$$ reportedbyHauseretal。（1998，AAA070。 161.559）anddecreasesto，evenatmost，afactorof10toward $$ zsim5 $$，thoughmanyvariantsareallowedwithintheseconstraints.ThisevolutionhistoryalsosatisfiestheconstraintsfromthegalaxynumbercountsobtainedbyIRAS，ISOand，大致SCUBA.TherapidevolutionofthecomovingIRluminositydensityrequiredfromtheCIRBwellreproducestheverysteepslopeofgalaxynumbercountsobtainedbyISO.Wealsoestimatethecosmicstarformationhistory（SFH）fromtheobtainedFIRluminositydensity，consideringtheeffectofthemetalenrichmentingalaxies.ThederivedSFHincreasessteeplywithredshiftin $$ 0ltzlt0.75 $$，andbecomesflatorevendeclinesat $$ zgt0.75 $$ 。这个此外，我们还展示了日本ASTRO-FFIR星系测量的性能。我们还显示了该测量的预期数量。我们还估算了从300美元到z美元的安全性，从1美元到z美元的安全性信息需要从2美元到300美元的精确度。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号