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http://cmuir.cmu.ac.th/jspui/handle/6653943832/69473| Title: | PhysicalPropertiesDistributionofGalaxyPopulationin Abell2142Cluster |
| Other Titles: | การกระจายสมบัติทางกายภาพของประชากรกาแล็กซีในกระจุกกาแล็กซีเอเบลล์ 2142 |
| Authors: | KledsaiPoopakun |
| Authors: | Assoc.Prof.Dr.WicheanKriwattanawong KledsaiPoopakun |
| Issue Date: | Apr-2020 |
| Publisher: | เชียงใหม่ : บัณฑิตวิทยาลัย มหาวิทยาลัยเชียงใหม่ |
| Abstract: | ThisworkaimstoinvestigatethephysicalpropertiesofsamplegalaxiesinAbell 2142cluster.Thephotometricandspectroscopicdatausinginthisworkwerecollected fromtheSloanDigitalSkySurvey(SDSS),selectedwithin2criteria;localedwithin100 arcminutesfromAbell2142centreandredshift0.0781≤z≤0.1038foravoideffectof backgroundandforeground.OurresultrevealsthatgalaxysampleinAbell2142canbe separatedinto2groupswhichgroupI(0.0781≤z≤0.0850),subclusterconnectingtothe filamentregion,andgroupII(0.0850 < z ≤0.1038),membersaroundtheclustercentral region.Moreover,Therelationbetweenapparentmagnitudein g filterbandandcolour indexsuggestthattheparameter u − z = 3.0canbeuseasacriteriatoseparatesamples intoblue(u − z ≤ 3.0)andred(u − z > 3.0)sequencegalaxies.Wealsoconsiderthe starformationactivityinthesample,wedefinedgalaxywiththeequivalentwidthofHα (EW(Hα) )greaterthan5Åasanactivegalaxyandfoundthatthesampleinsubcluster connectingtothefilamentregionshowsevidenceofstarformingactivitymorethanthe sampleinmembersaroundtheclustercentralregion.Thebluesequencegalaxiesalso tendtobemoreactivegalaxiesthanredsequencegalaxies. |
| URI: | http://cmuir.cmu.ac.th/jspui/handle/6653943832/69473 |
| Appears in Collections: | SCIENCE: Theses |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 600531116 เกล็ดทราย ภูผาคุณ.pdf | 5.69 MB | Adobe PDF | View/Open Request a copy |
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