
eiii. pii libray

librayude thekkan nakshathrasamoohathil 700 dasalaksham prakashavarsham akale sthithi cheiyunna oru bii. ell. lazerta vasthuvaan epi libray. vishwal bandle ariyappedunna ettavum sajeevamaaya blazerukalil onnaanith. chuvapp-shift bheeman deerghavrithaakrithiyilulla galaxy spectrum swabhaavamulla oru vipuleekritha uravidathaal chuttappettathaanu epi lib. eee pradeshatthinte drishyaparimithiyude alavu 15.0 aanu, ithu deerghavrithaakrithiyilulla oru savisheshathayude radialaayi kurayunna thelichathe pinthudarunnu. ezhu mangiya thaaraapathangal oru koneeya vyaasathinullil drishyamaanu, ithu oru tarapatha klasttarile ettavum thilakkamulla amgamaanennu soochippikkunnu.
maartha dii aanu eee vasthuvine opttikkal variable aadyamaayi thiricharinjathu. 1942-ll ashbrook, thelicham kramarahithamayi 15-ll ninnu 16-lake mariyathaayi shradhichu. divasangaludeyum manikkoorukaludeyum samaya skeyilukalil uravidam kuzhappakaramayi vyathyaasappedunnuvennu kandethi. howard iii. 1971ll bond francois biraudum radio srothassaaya pii. keey. ezz. <aii. dii. 1>-nte sthaanavumaayi eee vasthuvinte yaadrishchikatha rekhappeduthi. 1965ll joonn jii. bolton asosiyettukalum randaamathethu pathinaram magnitude deerghavrithaakrithiyilulla gaalaxiyaanenn thiricharinju. glen emm. 1971ll fry koottaalikalum ithu oru gamma-reey uravidamaayirikkaamenn abhiprayappettu. eee vasthuvinte bii. ell. lackerteyumaayulla saamyam sradhikkappettu, ithu oru bii. ell. lack vasthuvayi prakhyaapikkappedaan kaaranamaayi.
epi libray athinte spectral energy distributionilekku (sedu) oru synchrotron radiation ghadakam purappeduvikkunnu. eee vikiranathinte ettavum uyarnna ghadakam infrared baandilaan, ithu kuranja freekwansi peak bii. ell. laaku (ell. bii. ell) akkunnu. gamma kiranangal purappeduvikkunna churukkam chila elblkalil onnaanith. sedinte uyarnna oorjja gadakathinte veethi eee classile vasthukkalkk valare vishaalamaayi kanakkaakkappedunnu, ithu oorjjathil ekadesham tivi level vare vyathyaasappettirikkunnu. 1998-99 ll, vadakkukizhakkan dishayilekku valarunnathinu munbu uravidathil ninnu thekk-kizhakk dishayil aarambikkunna ekapaksheeyamaaya jettil ninnu vipuleekritha radio udvamanam kandethi. eee taapa ithara jettu epi lib (~ nuu thulyamaayathu) muthal vyaapikkunnu, 2013 ll ex-reey purappeduvikkunnathaayi kandethi. tivi shreniyile gamma-reey udvamanathinte uravidam jettu aayirikkam.