Colour corrections for high redshift objects due to intergal(5)
时间：2026-01-27
Corrections to the magnitudes of high redshift objects due to intergalactic attenuation are computed using current estimates of the properties of the intergalactic medium. The results of numerical simulations are used to estimate the contributions to reson
Colourcorrectionsforhighredshiftobjectsduetointergalacticattenuation
2
10
3456
z
2
10
3456
z
2
10
3456
z
2
10
4
6z
8
2
10
4
6z
8
2
10
3456
z
2
10
4
6z
8
2
10
3456
z
2
10
3456
z
2
10
4
6z
8
2
10
3456
z
2
10
3456
z
2
10
3456
z
2
10
3456
z
2
10
3456
z
2
10
3456
z
5
Figure3.IntergalacticattenuationkIGM-correctionsasafunctionofsourceredshiftfora600Myrstarburst(solidlines),a3Myrstarburst(long-dashedlines),aTypeIQSO(dot-dashedlines)andaTypeIIQSOwithhighequivalentwidthemissionlines(dottedlines).ThereislittlevariationbetweenthesourcesexceptfortheTypeIIQSObecauseofthepresenceofstrongemissionlines.Therowscorrespondtothefollowing ltersystems.Firstrow:Sloan;secondrow:SteidelUnGR ltersandI-band;thirdrow:HSTbandsB435,V606,i775andJWSTm070;fourthrow:Sloanz′,HSTz850andJ110andUKIDSSY.ThekIGM-correctionsarenegligiblefortheHSTH160,JWSTm150andUKIDSSJ,HandKbandsforz<8.5.
andcoloursof0.5 1magnitudeforbandscontainingrest-frameLyαandshorterwavelengths.
IntergalactickIGM-correctionsareprovidedfor ltersystemsusedincurrentorplanneddeepopticalandinfra-redsurveys,viz.theSloanu′g′r′i′z′system,SteidelUnGRandtheI-band,UKIDSSZYJHK,theHSTB435,V606,i775,z850,J110andH160bands,andtheJWSTF070WandF150Wbands.
Coloursbasedontheabovebandsareprovidedforstar-burstsofages3Myrand600Myr,typicalofz≈3LymanBreakGalaxies,andTypeIandTypeIIQSOs,overthered-shiftrange2.5<z<8.5.Theresultsshowwhichcoloursaremoste ectivefordistinguishingbetweendi erentob-c2005RAS,MNRAS000,000–000
jectsandthetypicalvaluestoexpect,whichmaybeused
fortheplanningandanalysisofcurrentandupcomingdeepsurveys.
ACKNOWLEDGMENTS
TheauthorthanksDrSteveWarrenforkindlyprovidingtotalresponsecurvesfortheUKIDSS ltersystem.
REFERENCES
BithellM.,1991,MNRAS,253,320
Colour corrections for high redshift objects due to intergal(5).doc
将本文的Word文档下载到电脑
上一篇：完整制造业公司 组织结构
