gott-kaiser-stebbins (gks) effect in an accelerated expanding universe
نویسندگان
چکیده
wewanttofindthecosmologicalconstantinfluenceoncosmicmicrowavebackground(cmb)temperatureduetomovinglinearcosmicstrings.usingthespace-timemetricofalinearcosmicstringinanacceleratedexpandinguniverse,thegott-kaiser stebbins(gks)effect,asanimportantmechanisminproducingtemperaturediscontinuityinthe(cmb),isconsidered;then,itsmodificationduetotheeffectofthecosmologicalconstantiscalculated.theresultshowsthatapositivecosmologicalconstant(i.e.thepresenceofcosmicstringsinanacceleratedexpandinguniverse)weakensthediscontinuityintemperaturesothatastrongerresolutionisneededtodetectthecorrespondinginfluencesonthecmbpowerspectrumandanisotropy.
منابع مشابه
Gott-Kaiser-Stebbins (GKS) effect in an accelerated expanding universe
Wewanttofindthecosmologicalconstantinfluenceoncosmicmicrowavebackground(CMB)temperatureduetomovinglinearcosmicstrings.Usingthespace-timemetricofalinearcosmicstringinanacceleratedexpandinguniverse,theGott-Kaiser Stebbins(GKS)effect,asanimportantmechanisminproducingtemperaturediscontinuityinthe(CMB),isconsidered;then,itsmodificationduetotheeffectofthecosmologicalconstantiscalculated.Theresultshowsthat...
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عنوان ژورنال:
iranian journal of astronomy and astrophysicsناشر: damghan university astronomical society of iran
ISSN ۲۳۲۲-۴۹۲۴
دوره 2
شماره 2 2015
میزبانی شده توسط پلتفرم ابری doprax.com
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