subrahmanyan chandrashekhar

subrahmanyan chandrashekhar

subrahmanyan chandrashekhar
janm 19 October 1910
Lahore, Punjab, british Bhaarat
mrutyoo August 21, 1995(1995-08-21) (umr 84)
Chicago, sanyukt raajya
raashtreeyata british Bhaarat, (1910-1947)
Bhaarat (1947-1953)
sanyukt raajya (1953-1995)
kshetr khagolashaastr
sansthaaeain Chicago vishvavidyaalaya
Cambridge vishvavidyaalaya
maatrusanstha triniti kaalij, Cambridge
presideinsi kaalij, Madras
dauktaret salaahakaar raalf H faaular
dauktaret chhaatr donaald edvaard ostarabrauk, yaavuj nutako
prasiddh kaarya chandrashekhar seema
puraskaar Nobel puraskaar, bhautiki (1983)
kauple padak (1984)
national medal of science (1967)
padm vibhooshan (1968)

subrahmanyan chandrashekhar (19 October, 1910-21 August, 1995) vikhyaat tamil bhaarateeya-ameriki khagolashaastri the. bhautik shaastr par unke adhyayan ke liye unhein William A. faaular ke saath sanyukt roop se san 1983 mein bhautiki ka Nobel puraskaar mila.[1]

chandrashekhar san 1937 se 1995 mein unke dehaant tak Chicago vishvavidyaalaya ke sankaaya par vidyamaan the.

jeevani

dau॰ subrahmanyaam chandrashekhar ka janm 19 October 1910 ko Lahore (ab Pakistan mein) mein hua tha.[2] unki praarambhik shiksha-deeksha Madras mein hui. 18 varsh ki aayu mein chandrashekhar ka pehla shodh patra `Indian journal of fijiks' mein prakaashit hua.

Madras ke preseedeinsi college se snaatak ki upaadhi lene tak unke kai shodh patra prakaashit ho chuke the. unamein se ek `proseedings of the royal society' mein prakaashit hua tha, jo itni kam umr vaale vyakti ke liye gaurav ki baat.

24 varsh ki alpaayu mein san 1934 mein hi unhonne taare ke girne aur lupt hone ki apni vaigyaanik jijnyaaasa sulajha li thi. kuchh hi samay baad yaani 11 January 1935 ko London ki royal estronaumikl society ki ek baithak mein unhonne apna maulik shodh patra bhi prastut kar diya tha ki safed baune taare yaani white dvaarf taare ek nishchit dravyamaan yaani definet maas praapt karne ke baad apne bhaar mein aur vruddhi naheen kar sakte. antat ve black hol ban jaate hain. unhonne bataaya ki jin taaron ka dravyamaan aaj soorya se 1.4 guna hoga, ve antat sikud kar bahut bhaari ho jaaenge. Oxford mein unke guru sar aarthar edingatan ne unke is shodh ko pratham drushti mein sveekaar naheen kiya aur unki khilli udaai. par ve haar maanane vaale naheen the. ve pun shodh saadhana mein jut gaye aur aakhirkaar, is disha mein vishv bhar mein kiye ja rahe shodhon ke falasvaroop unki khoj ke theek pachaas saal baad 1983 mein unke siddhaant ko maanyata mili. parinaamat bhautiki ke kshetr mein varsh 1983 ka Nobel puraskaar unhein tatha dau॰ William faaoolar ko sanyukt roop se pradaan kiya gaya.

27 varsh ki aayu mein hi chandrashekhar ki khagol bhautikeevid ke roop mein achhi dhaak jam chuki thi. unki khojon se nyootraun taare aur black hol ke astitv ki dhaarana kaayam hui jise samakaaleen khagol vigyaan ki reedh prasthaapana maana jaata hai.

khagol bhautiki ke kshetr mein dau॰ chandrashekhar, chandrashekhar seema yaani chandrashekhar limit ke liye bahut prasiddh hain. chandrashekhar ne poornat ganiteeya gananaaon aur sameekaranon ke aadhaar par `chandrashekhar seema' ka vivechan kiya tha aur sabhi khagol vaigyaaniko ne paaya ki sabhi shvet vaaman taaron ka dravyamaan chandrashekhar dvaara nirdhaarit seema mein hi seemit rahata hai.

san 1935 ke aarambh mein hi unhonne black hol ke banane par bhi apne mat prakat kiye the, lekin kuchh khagol vaigyaanik unke mat sveekaarane ko taiyaar naheen the.

yadyapi apni khojon ke liye dau॰ chandrashekhar ko Bhaarat mein sammaan to bahut mila, par 1930 mein apne adhyayan ke liye Bhaarat chhodne ke baad ve baahar ke hi hokar rah gaye aur laganapoorvak apne anusandhaan kaarya mein jut gaye. chandrashekhar ne khagol vigyaan ke kshetr mein taaron ke vaayumandal ko samajhne mein bhi mahatvapoorn yogadaan diya aur yeh bhi bataaya ki ek aakaash ganga mein taaron mein padaarth aur gati ka vitran kaise hota hai. roteting plooid maas tatha aakaash ke neelepan par kiya gaya unka shodh kaarya bhi prasiddh hai.

dau॰ chandra vidyaarthiyon ke prati bhi samarpit the. 1957 mein unke do vidyaarthiyon tsung daao li tatha chen ning yeing ko bhautiki ke Nobel puraskaar se sammaanit kiya gaya.

apne antim saakshaatkaar mein unhonne kaha tha, yadyapi main naastik hindu hoon par taarkik drushti se jab dekhta hoon, to yeh paata hoon ki maanav ki sabse badi aur adbhut khoj ishvar hai.

anek puraskaaron aur padakon se sammaanit dau॰ chandra ka jeevan upalabdhiyon se bharpoor raha. ve lagbhag 20 varsh tak estrofijikl journal ke sampaadak bhi rahe. dau॰ chandra Nobel puraskaar praapt pratham bhaarateeya tatha Asiaee vaigyaanik suprasiddh sar chandrashekhar veinkat Raman ke bhateeje the. san 1969 mein jab unhein Bhaarat sarkaar ki or se padm vibhooshan se sammaanit kiya gaya, tab tatkaaleen pradhaanamantri shreemati indira Gandhi ne unhein puraskaar dete hue kaha tha, yeh bade dukh ki baat hai ki ham chandrashekhar ko apne desh mein naheen rakh sake. par main aaj bhi naheen kah sakti ki yadi ve Bhaarat mein rahate to itna bada kaam kar paate.

dau॰ chandra sevaanivrutt hone ke baad bhi jeevan-paryant apne anusandhaan kaarya mein jute rahe. beesaveen sadi ke vishv-vikhyaat vaigyaanik tatha mahaan khagol vaigyaanik dau॰ subrahmanyam chandrashekhar ka 22 August 1995 ko 84 varsh ki aayu mein dil ka daura padne se Chicago mein nidhan ho gaya. is ghatna se khagol jagat ne ek yugaantakaari khagol vaigyaanik kho diya. yoon to dau॰ chandrashekhar ne kaafi lamba tatha paryaapt jeevan jiya par unki mrutyu se Bhaarat ko avashya dhakka laga hai kyonki aaj jab hamaare desh mein `jaayant meter vev radio teliskop' ki sthaapana ho chuki hai, tab is kshetr mein naveenatam khojein karne wala vah vaigyaanik chal basa jiska uddeshya tha- Bhaarat mein bhi America jaisi sanstha `seti' (pruthveetar nakshatr lok mein bauddhik jeevon ki khoj) ka gathan. aaj jab dau॰ chandra hamaare beech naheen hain, unki vilkshan upalabdhiyon ki dharohar hamaare paas hai jo bhaavi peedhiyon ke khagol vaigyaaniko ke liye prerana srot bani rahegi.

baahari kadiyaaain

sandarbh

  1. vishveshvar, S. (25 April 2000). "leevs fraum N anaritn daayari: S.chandrashekhar, reminisensej end riflekshans" (.peedeeef). karant science 78 (8): 1025-1033. http://www.ias.ac.in/currsci/apr252000/generalia.pdf. abhigman tithi: 2008-02-27.
  2. chandrashekhar 1983 aatmakatha