VYOM - 2021

‘¡Šg Zo ¶h ^r {ZîH$f© {ZH$mbm {H$ ¶h gmoMZm ì¶W© Wm {H$ JwéËdmH$f©U {d{H$aUm| H$m AdbmoH$Z {H$¶m Om gH$Vm h¡& AmB§ñQ>mBZ Zo 1916 ‘| gm‘mݶ gmnojVmdmX Ho$ AnZo {dñV¥V {gÕm§V H$mo àH$m{eV {H$¶m O~{H$ Cg g‘¶ ^r CZH$mo JwéËdr¶ Va§Jm| Ho$ ApñVËd na g§Xoh Wm& ^bo hr, BgHo$ Vwa§V ~mX, CÝhm|Zo EH$ g§emoYZnÌ àH$m{eV {H$¶m {Og‘| JbVr go H$hm J¶m Wm {H$ EH$Y«wdr¶ {d{H$aU (monopole radiation) g§^d Wm& 2 gmb ~mX, CÝhm|Zo EH$ ZE g§emoYZnÌ Ho$ gmW ¶h JbVr ñdrH$ma H$s Am¡a JwéËdr¶ Va§Jm| H$m ghr gyÌrH$aU {X¶m& {H$ÝVw BgHo$ ~mdOyX, AmB§ñQ>mBZ OrdZ ^a BZ Va§Jm| H$s dmñV{dH$Vm / CZHo$ g§^mì¶ AdbmoH$Z Ho$ ~mao ‘| A{Z{íMV aho& JwéËdmH$f©U Ho$ {gÕm§V H$m {dH$mg 1950 Ho$ XeH$ Ho$ ‘ܶ VH$ Yr‘m Wm& AmB§ñQ>mBZ H$s ‘¥Ë¶w Ho$ ~mX dh EH$ ~ma {’$a J{V àmá H$aZo bJm& àm¡Úmo{JH$s H$s àJ{V Ho$ gmW, ewê$ ‘| aoOmoZ§Q> ~ma g§gyMH$m| (resonant bar detectors) H$m BñVo‘mb H$aHo$ Am¡a ~mX ‘| boOa ì¶{VH$aU{‘{V¶m| (laser interferometry) Ho$ gmW JwéËdr¶ Va§Jm| H$m AdbmoH$Z H$aZo H$s n[aH$ënZm H$s JB©& XeH$m| H$s g¡Õm§{VH$ Am¡a à¶moJmË‘H$ H${R>ZmB¶m| Am¡a H$B© Ag’$b à¶mgm| Ho$ ~mX AmpIaH$ma 14 {gV§~a 2015 H$mo LIGO {S>Q>oŠQ>am| Zo {Û-H¥$îU{dda {db¶ (binary black hole merger) go CËg{O©V JwéËdr¶ Va§Jm| H$m nVm bJmZo ‘| g’$bVm nmB©& LIGO Am¡a VIRGO {S>Q>oŠQ>am| Zo 17 AJñV 2017 H$mo EH$ Am¡a emZXma ImoO H$s O~ EH$ Eogo {Û-ݶyQ´>m°ZñQ>ma {db¶ H$m AdbmoH$Z hþAm Omo EH$ {H$bmoZmodm {dñ’$moQ> Ho$ gmW ‘ob Im ahm Wm& ¶h KQ>Zm {dÚwV Mw§~H$s¶ Va§J dU©H«$‘ Ho$ H$B© ~¢S>m| ‘| XoIr JB©& JwéËdr¶ Va§Jm| Ho$ AdbmoH$Z Ho$ gå‘mZmW© 2017 H$m Zmo~ob ^m¡{VH$s nwañH$ma VrZ d¡km{ZH$m|, aoZa drg, ~¡ar ~¡[ae Am¡a {H$n Wm°Z© H$mo {X¶m J¶m& Bg na‘ g’$bVm ‘| H$B© ^maVr¶ d¡km{ZH$m| Zo ^r ¶moJXmZ {X¶m h¡& BZ‘| go EH$ h¡ gr. dr. {dûdoûda Or, {OÝh| "^maV H$m ãb¡H$ hmob ‘¡Z' ^r H$hm OmVm h¡& {dûdooûda Or Zo {db¶ Ho$ ~mX Ad{eï> ãb¡H$ hmob Ho$ [a¨JS>mCZ MaU Ho$ ŠMmgr-Zm°‘©b ‘moS> H$m g¡Õm§{VH$ T>m±Mm {X¶m h¡& IUCAA, nwUo, Ho$ g§Ord Ywa§Ya Or Zo {dH${gV {H$¶m hþAm J{UVr¶ T>m±Mm, {Ogo "‘¡M {µ’$ëQ>[a¨J' ^r H$hm OmVm h¡ Hw$ad (noise) à^wËdr LIGO Am¡a VIRGO S>oQ>m go JwéËdr¶ Va§J g§Ho$Vm| H$mo Bï>V‘ VarHo$ go Ty>±T> {ZH$mbZo Ho$ {bE BñVo‘mb {H$¶m OmVm h¡& a‘Z [agM© B§ñQ>rQ>çyQ>, ~|Jbwé, Ho$ ~mbm Aæ¶a Zo H$m°ån¡ŠQ> ~mBZar {db¶m| go CËg{O©V JwéËdr¶ Va§Jm| Ho$ A˶{YH$ gQ>rH$ nmoñQ>-ݶyQ>mo{Z¶Z Va§J ‘m°S>b {dH${gV H$aZo ‘| ¶moJXmZ {X¶m h¡& h‘ gM‘wM JwéËdr¶ Va§J IJmob {dkmZ Ho$ ‘mܶ‘ go A§V[aj g§emoYZ Ho$ EH$ ZE ¶wJ H$s ewéAmV XoI aho h¢& ^maV ‘| ~Z aho EH$ Am¡a LIGO {S>Q>oŠQ>a Ho$ {Z‘m©U go h‘mam Xoe AmË‘{dûdmg Ho$ gmW Bg à¶mg ‘| AJ«Ur ^y{‘H$m {Z^m ahm h¡& - lr{OV OmYd 17

RkJQdWJsaXNoZXIy MzM3ODUy