Indian astronomy mein ‘Thiruvathirai’ ya ‘Ardra’ ke naam se jaana jaane vaala bright red star Betelgeuse, oriyan taaraamandal mein apanee pramukh sthiti se observers ko mohit kar leta hai.-Betelgeuse’s Pulsation kya hai?
Japanese aur swiss researchers dvaara kie gae haaliya shodh ne taare ke pulsation patterns par prakaash daala hai.
Betelgeuse’s Pulsation kya hai?
Betelgeuse ek red supergiant star hai jo apane jeevan ke ant ke kareeb hai. yeh Rigel ke baad Orion taaraamandal ka doosara sabase chamakeela taara hai.
vaigyaanikon ne dekha ki 2019 ke ant mein taare kee visible surface ke ek bade hisse ke ud jaane ke kaaran hue ek dardanaak visphot ke baad Betelgeuse rahasyamay tareeke se mand ho raha tha.
Betelgeuse kee chamak do mukhy kaarakon ke kaaran bhinn hotee hai: isakee satah ke taapamaan mein parivartan aur isake aakaar mein parivartan.
Ek red supergiant ke roop mein, Betelgeuse kee ek bahut hee asthir bahri parat hoti hai jo convection aur pulsation ke lie pravan hotee hai.
Pulsating Mechanism kya hai:
Betelgeuse ka pulsation taare ke periodic contraction aur expansion ko darshaata hai.
Researchers ne Betelgeuse ke dekhe gae pulsation kee tulana theoretical estimates se kee hai, jo darshaata hai ki taara apane antim carbon-burning ke charan mein hai.
Pulsation periods taare kee radius, luminosity, aur mass mein valuable insights pradaan karatee hai, jo core carbon burning ke vartamaan charan kee pushti karatee hai.
Steam chorne ke lie bartan ka dhakkan uthaane ke samaan, red giant stars apanee sabase baaharee paraton mein hydrogen ke garm hone aur thanda hone ke kaaran phailate aur sikudate hain.
taare ke outermost envelope mein thanda neutral hydrogen hota hai, jo interior se garmee ko absorb karata hai, jisase taare ka vistaar hota hai.
jaise-jaise taapamaan badhata hai, hydrogen ionised ho jaata hai aur adhik garmee ko absorb kar sakata hai, jisase outermost shell ka joradaar expansion aur injection hota hai.
is prakriya kee cyclic nature ke kaaran taara samay-samay par mand aur chamakeela hota hai, jise door se dekha ja sakata hai.
Stages of Evolution:
Betelgeuse jaise taare apane praarambhik charan ke dauraan hydrogen ko helium mein fuse karate hain, jo gravity aur energy release ke beech santulan banae rakhane mein madad karata hai.
Betelgeuse jaise vishaal taare ka hydrogen fuel kuchh crore varshon mein khatm ho jaata hai, jab ve carbon banaane ke lie helium ka upayog karane lagate hain. Helium lagabhag 10 laakh varsh mein samaapt ho jaata hai.
jaise-jaise pratyek charan aage badhata hai, tatvon ka jalana tez ho jaata hai, Carbon kuchh 100 varshon mein jalata hai aur silicon lagabhag ek din mein jalata hai.
isake baad red giants periodic table ke elements ko ek-ek karake tejee se consume krte hain, jab tak ki finally unaka kor lohe se bhar nahin jaata.
ek baar jab core lohe se samriddh ho jaata hai, to taare ke bheetar ka taapamaan aur dabaav kam ho jaata hai. ise rokane ke lie kuchh bhee nahin hone ke kaaran, gravity core ko compress krta hai aur ise neutron star ya black hole mein badal deta hai.
Betelgeuse ka late carbon stage taare ke imminent collapse se pahale ke antim charan ko darshaata hai.
Japanese aur swiss researchers dvaara kie gae haaliya shodh ne taare ke pulsation patterns par prakaash daala hai. Iske bare me apni rae comment section me btae
Betelgeuse ke stages ke evolution ke bare me aap kya jante hai?
