
marcarian 421

marcarian 421 (emarke 421, emkn 421) ursa mejar nakshathrasamoohathil sthithicheyyunna oru blaasaraan. eee vasthu oru sajeeva galaxy oru bii. ell. lazerta objectumaanu, ithu gamma kiranangalude sakthamaaya uravidamaanu. ithu ekadesham 397 dasalaksham prakaashavarshamaanu (chuvanna shiftta z = 0.0308 eq. bhoomiyil ninnu 122 mpc) muthal 434 dasalaksham prakashavarsham (133 mpc) vare. bhoomiyodu ettavum aduthulla blazerukalil onnaanith, ithu ratri aakaashathile ettavum thilakkamulla kwaasaarukalil onnaanu. athinte sajeevamaaya swabhaavam kaaranam athinte madhyathil oru supermassive thamogarthamundennu (smbh) samshayikkunnu. marcarian 421 nuu vadakkukizhakkaayi 14 arck secondukalilaayi oru aadyakaala tharam uyarnna cherivu ulla sarppila galaxy (marcarian <aii. dii. 1>) sthithicheyyunnu.
1992ll valare uyarnna oorjjamulla gamma reey emittar aanennu aadyamaayi nirnnayichu. whipple obsarvettariyile panchum valare uyarnna oorjjamulla gamma kiranangalile (15 minitt uyarcha samayam) valare druthagathiyilulla pottitheriyum 1996 ll jeey alannu. whipple obsarvettariyil guidos 
marcarian 421-lum 2001-ll oru pottitheri undaayi, ithu muzhuvan erthu blasser dooradarshini padhathiyum nireekshikkunnu.
athinte thelicham kaaranam (ekadesham 13.3 magnitude, paramavadhi. 11.6 magazin. minimum. 16 magazin.) cheria dooradarshinikalil ninnu amachwarmaarkkum eee vasthu kaanaan kazhiyum.

