White Dwarf, black Dwarf

A ilmin taurari, akwai mutane da yawa wanda ba a gane ba, m, da kuma wani lokacin kawai ban mamaki mamaki, daya daga wanda yake shi ne fari Dwarf. Daga cikin na farko ya yi nazarin wadannan abubuwa wani sarari suKe tsunduma masanin kimiyya Wilhelm Bessel. ya same su quite da hatsari. Abu na da asali bincike ya haske star - Shi'ira. Interest a horo sa sabon abu yanayin da duniya, wato da cewa ta kasance undulating. Bessel fara neman m dalilai da zai iya kai ga irin wannan m, a ra'ayinsa, mamaki.

Constant monitoring Shi'ira sa masana kimiyya su yi tunanin cewa a nan da nan kusanci na duniya ne wani, ba a sani ba, a star cewa ba a bayyane ba, amma ta gravitational tasiri yana da karfi da tasiri. Wannan ya tabbatar da katin shaida na ambata hawa da sauka a cikin motsi Shi'ira. Wani samu aka yi da wani falaki. Ya nuna cewa idan da fari Dwarf ne real, sa'an nan da lokaci na jiyya da kuma Shi'ira, kuma an unknown duniya a kusa da su na kowa cibiyar nauyi ne kamar daidai da shekaru 50. Planet Shi'ira har yanzu janyo hankalin masana harkokin kimiyya daga ko'ina cikin duniya tare da biyu asiri, kuma ya zauna a nemi-bayan abu na gudanar da bincike.

Idan ka kawai bayyana farin Dwarf, shi ne wani abu na m yanayin da aka tam boye tafi a m sasanninta na duniya da yake da ragowar wani star. A cikin tsohon kwana, a lokacin da na gani kayan aiki ba tukuna da irin wannan babbar ƙuduri damar, shi da aka yi imani da cewa wani farin Dwarf star - a rare abin da ya faru, amma masana kimiyya ce kishiyar yau. A cewar American Masana ilmin, da dama daga cikin wadannan abokai wuce biliyan 10. Wannan shi ne kashi 5% na yawan taurari wanda da zato ne a cikin galaxy.

Masana kimiyya yi imani da cewa Dwarf taurari - wadannan ne mu mafi kusa da makwabta. White Dwarf yana da wani yanayi wanda kauri ne daruruwan mita, shi ne hada yawa sunadarai sani ga mutum. Ga misali: alli, da baƙin ƙarfe, hydrogen, titanium oxide, helium, kuma carbon. Its diamita ne m, kuma daidai da 40 000 km. Iri biyu fari dwarfs: zafi da sanyi, da ciwon wani yanayi kunshi 'helium. Kamar yadda wani ɓangare na farko hydrogen samar da masana kimiyya ya gano cewa 0.05%.

Dwarf duniya hali kamar warmed da wani cannonball, wanda ya musanya zafin jiki yayin da haskakawa makamashi. The masu girma dabam na wadannan basamaniyai ne ko da yaushe guda. Masana ilmin lasafta darajar ne mafi girma daga nauyi, da karami da radius.

A farin Dwarf daya ne kawai nau'i na makamashi - zafi. Its sanyaya za a iya kwatanta su da sanyaya wani karfe sanda, wanda aka ƙwace daga cikin fryer. Na farko, da aiwatar da ke da sauri, amma da zaran zazzabi ciki fadi, sanyaya zama jinkirin.

Masana kimiyya sun} iyasta ga tsawon daruruwan 'yan shekaru miliyan na fari Dwarf luminosity fall da kawai 1% na jimlar luminosity na rana. Ta hanyar biliyoyin shekaru da shi yana iya samar da wata black Dwarf. Dukansu jikuna an kadan karatu ya zuwa yanzu, amma yana da babban amfani da su kullum a fagen view of masana kimiyya.

An ban sha'awa misali na mutum nauyi lissafi shan la'akari da nauyi a kan surface na fari Dwarf. Misali mutum yana da wani nauyi na 75 kg a duniya, a lokacin da Sun zai zama nauyi na 2 ton, a Dwarf duniya zai kara da shi zuwa 120-140 tons.

A babban star duniya hasarar makamashi a miliyoyin shekaru, da kuma shi dwarfs ajiye da kuma budewa da thermonuclear shekaru, data kasance a kan biliyoyin shekaru. Asirai kasance muhimmanci mafi girma fiye da m hanyoyi na bayani, amma shi ne fatan cewa nan da nan da labulen asiri zai bude. A musamman, a cikin 'yan shekarun aiki aiki ne da za'ayi da ilmin Taurari daga Jami'ar. Washington.