Wata ƙungiyar masana ilmin taurari ta ƙasa da ƙasa ta gano wata duniya wadda rana huɗu ke haskaka sararin samaniyarta - wannan shi ne karo na farko da aka sani da irin wannan lamari.
Duniyar, wacce take da nisan kimanin shekaru 5,000 na haske daga Duniya, an sanya mata suna PH1 don girmama Planet Hunters, wani shiri da Jami'ar Yale da ke Amurka ke jagoranta, wanda ke daukar masu sa kai don neman alamun sabbin duniyoyi.
PH1 yana zagaye rana biyu, kuma a sakamakon haka, taurari biyu masu nisa suna zagaye ta. Masu bincike sun ce duniyoyi shida ne kawai aka san suna zagaye taurari biyu, kuma babu ɗaya daga cikinsu da wasu taurari masu nisa ke kewaye ta.
"Duniyoyin da ke kewaye su ne mafiya girman samuwar duniyoyi," in ji Meg Schwamb na Yale, jagoran marubucin wata takarda da aka gabatar ranar Litinin a taron shekara-shekara na Sashen Kimiyyar Duniya na Ƙungiyar Masana Taurari ta Amurka a Nevada.
"Gano waɗannan tsarin yana tilasta mana mu koma kan allon zane don fahimtar yadda irin waɗannan duniyoyi za su iya haɗuwa da kuma bunƙasa a cikin waɗannan yanayi masu ƙalubale." Masana kimiyya 'yan asalin Amurka da mahalarta Planet Hunters Kian Jek da Robert Gagliano su ne farkon waɗanda suka gano PH1. Daga nan sai ƙungiyar masu bincike na Amurka da Birtaniya da ke aiki a Hawaii ta tabbatar da lurarsu.
PH1 wani babban iskar gas ne mai fadin radius kusan sau 6.2 na Duniya, wanda hakan ya sa ta fi Neptune girma kaɗan. Yana kewaya taurari biyu masu ɓullowa waɗanda suka kai girman 1.5 da kuma sau 0.41 na nauyin Rana kusan kowace kwana 138.
Sauran taurarin biyu suna zagaya tsarin duniyoyi a nisan da ya kai kusan nisan da ke tsakanin Duniya da Rana sau 1,000.
An ƙirƙiri gidan yanar gizon Planethunters.org a shekara ta 2010 don ƙarfafa masana ilmin taurari masu son sanin duniyoyi a wajen tsarin hasken rana, ta amfani da bayanai daga na'urar hangen nesa ta Kepler ta hukumar sararin samaniya ta Amurka ta NASA.
Kepler, wanda aka ƙaddamar a watan Maris na 2009, shine aikin farko da NASA ta fara yi don neman taurari masu kama da Duniya waɗanda ke kewaya taurari irin namu Rana.
An samu gano PH1 a yanar gizo a ranar Litinin a shafin yanar gizo na arxiv.org kuma an mika shi ga Mujallar Astrophysical don bugawa.
"Har yanzu yana ci gaba da bani mamaki yadda za mu iya gano, balle mu tattara bayanai da yawa, game da wata duniyar da ke da nisan dubban shekaru masu haske kawai ta hanyar nazarin hasken daga tauraron iyaye," in ji Jek.
A makon da ya gabata masana kimiyya sun bayar da rahoton gano "duniyar lu'u-lu'u" girmanta ya ninka na duniya sau biyu kuma tana kewaya tauraro mai kama da rana.
Ana kyautata zaton har zuwa kashi ɗaya bisa uku na nauyin duniyar da kuma yawancin samanta ya ƙunshi lu'u-lu'u, wanda hakan ke nuna cewa ba za a iya ɗaukar cewa duniyoyin dutse masu nisa suna da siffofi iri ɗaya da Duniya ba.
(Hürriyet Daily News)
