Masana ilmin taurari sun gano wani sararin samaniya wanda zai iya rufewa da ruwa gaba daya

Astrônomos descobriram um exoplaneta que poderia ser totalmente coberto de água

Tawagar masu bincike ta duniya karkashin jagorancin Charles Cadieux, Ph.D. dalibi a Université de Montréal kuma memba na Cibiyar Bincike akan Exoplanets (iREx), ya gano wani exoplanet mai suna TOI-1452 b, wanda aka yi imani da cewa duniyar teku ce. Exoplanet ya ɗan fi girma da girma fiye da Duniya.

Yana cikin ƙungiyar taurarin Draco, kimanin shekaru 100 na haske daga Duniya, exoplanet yana kewaya tauraro mai suna TOI-1452. Tazarar da ke tsakanin tauraro da tauraro ta yadda zafinsa ba zai yi zafi sosai ba kuma ba zai yi sanyi sosai ba don ruwan ruwa ya wanzu a samansa. A cewar masana ilmin taurari, TOI-1452 b duniya ce gaba daya da wani kauri mai kauri ya lullube shi, kamar watannin Jupiter da Saturn.

René Doyon, Farfesa a Jami'ar Montréal kuma Daraktan iREx da Observatoire du Mont-Mégantic (OMM) ya ce, "Na yi matukar alfahari da wannan binciken saboda yana nuna girman girman masu bincikenmu da kayan aikinmu. Godiya ga OMM, kayan aiki na musamman da aka tsara a cikin dakunan gwaje-gwajenmu da ake kira SPIRou, da kuma wata sabuwar hanyar nazari da ƙungiyar binciken mu ta ƙera, mun sami damar gano wannan musamman exoplanet."

Tauraron mai masaukin baki TOI-1452 ya fi Rana mu girma kuma yana ɗaya daga cikin taurari guda biyu masu kama da juna a cikin tsarin binary. Taurari biyu suna kewaya juna kuma an raba su da irin wannan ɗan ƙaramin nesa - raka'a 97 na taurari.

NASA's TESS ya gano exoplanet. Dangane da siginar TESS, wanda ke nuna raguwar haske a kowane kwanaki 11, masana ilmin taurari sun yi hasashen duniyar da ta fi girma da diamita kusan 70% fiye da Duniya.

Don bin diddigin abubuwan da suka faru, masu ilimin taurari sun yi amfani da PESTO, kyamarar da aka sanya akan na'urar hangen nesa ta OMM.

Cadieux ya ce, “OMM ta taka muhimmiyar rawa wajen tabbatar da yanayin wannan siginar da kimanta radius na duniya. Wannan ba bincike na yau da kullun ba ne. Dole ne mu tabbatar da cewa siginar da TESS ta gano ta samo asali ne ta hanyar wani exoplanet da ke kewaye da TOI-1452, mafi girma daga cikin taurari biyu a cikin wannan tsarin binary."

"Kudirin PESTO ya isa ya bambanta abubuwa guda biyu, kuma Hotunan sun nuna cewa exoplanet yana kewaya TOI-1452, wanda aka tabbatar da shi ta hanyar lura da baya daga tawagar Japan."

Daga baya, masana ilmin taurari sun yi amfani da SPIRou, wani kayan aiki da aka sanya a kan Telescope na Kanada-Faransa-Hawaii a Hawaii, don sanin girman duniya. Bayan fiye da sa'o'i 50 na kallo, an kiyasta cewa duniyar ta kusan sau biyar fiye da girman duniya.

Exoplanet TOI-1452 b an yi imani da cewa duniya ce mai dutse kamar Duniya, amma radius, taro da yawa suna nuna cewa ya bambanta da namu.

Masu bincike Étienne Artigau da Neil Cook, suma daga iREx a Jami'ar Montréal, sun taka muhimmiyar rawa wajen nazarin bayanan. Sun haɓaka hanyar bincike mai ƙarfi da ke iya gano duniyar cikin bayanan da aka tattara tare da SPIRou.

Artigau ya ce, "Hanyar LBL [don layi ta layi]] yana ba mu damar tsaftace bayanan da aka samu tare da SPIRou na siginar parasite da yawa da kuma bayyana raunin sa hannun taurari kamar wanda ƙungiyarmu ta gano."

Cadieux ya ce, "TOI-1452 b yana daya daga cikin mafi kyawun 'yan takarar duniyar teku da muka samo. Radius ɗinsa da girmansa suna ba da shawarar ƙarancin yawa fiye da yadda ake tsammani ga duniyar da ta ƙunshi ƙarfe da dutse, kamar Duniya. "

Mykhaylo Plotnykov da Diana Valencia na Jami'ar Toronto ƙwararru ne a cikin ƙirar ƙirar sararin samaniya. Binciken su na TOI-1452 b ya nuna cewa ruwa na iya yin lissafin har zuwa 30% na yawansa.

Maganar Jarida:

Charles Cadieux, René Doyon et al. TOI-1452 b: SPIrou da TESS sun bayyana wani babban duniya a cikin wani yanayi mai zafi da ke jujjuya dwarf M4. Jaridar Astronomical 164 96. DOI: 10.3847/1538-3881/ac7cea

Rate wannan post

Labarai masu alaka

Leave a Comment

WhatsApp
Reddit
FbMessenger
kuskure: