Boushaki cosmology aiki
Boushaki cosmology aiki ko index of inconsistency (IOI) wata dabara ce ta kididdiga ta sararin samaniya da Mustapha Ishak Boushaki ya ƙera tun 2006 don nazarin faɗaɗa sararin samaniya.

Bincike na farko 
Farfesa Mustapha Ishak Boushaki ya wallafa kasidarsa ta farko kan rashin daidaiton fadada sararin samaniya a shekarar 2006 bayan ya gabatar da takardar shaidar digirinsa mai taken "Nazari a cikin samfuran sararin samaniya marasa daidaituwa" karkashin kulawar Farfesa Kayll William Lake a watan Yunin shekarar 2003 a cikin Jami'ar Sarauniya da ke Kingston.

Boushaki yayi ƙoƙari ya warware asirin da ke ɓoye a cikin haɓakar haɓakar sararin samaniya ta hanyar nazarin rawar da ke tattare da makamashi mai duhu a cikin gyare-gyaren tasirin motsin nauyi.

Ma'anar rashin daidaituwa 
Ishak-Boushaki da dalibinsa Weikang Lin sun haɓaka a Jami'ar Texas a Dallas wani sabon ma'auni, wanda ake kira index of inconsistency (IOI), wanda zai iya ba da ƙimar ƙima ga yadda fiye da bayanan biyu ba su yarda ba.

A cikin wannan kayan aiki, ƙimar rashin daidaituwa na fiye da ɗaya na iya nufin cewa bayanan ƙididdiga na cosmology ba su da daidaituwa, yayin da darajar da ta fi biyar ta sanya su a cikin nau'in rashin daidaituwa mai ƙarfi.

Wannan hanyar da sauran waɗanda aka yi amfani da su don kimanta yanayin rashin daidaituwa wanda bai dace da sakamakon kayan aikin Max Planck ba.

Zazzabi mai tsayi 

Ana amfani da kuma wannan kayan aikin ƙididdiga don kwatanta dabaru daban-daban da yawa don auna madaidaicin Hubble, wanda ke bayyana ƙimar da sararin duniya ke faɗaɗawa.

Tun daga shekara ta 2016, Boushaki ya yi amfani da wannan ma'auni akai-akai a cikin rahotannin da ya yi game da sakamakon binciken rashin daidaituwa a kan nisan sararin samaniya da haɓakar tsari mai girma.

Tabbas, waɗannan binciken da rahotanni sun nuna cewa wannan muhimmin mahimmancin ilimin sararin samaniya na iya canzawa daga ƙimarsa ta gaskiya lokacin da ba a ƙididdige abubuwan da ba su dace ba.

Boushaki ya yi amfani da bayanan da kyamarori masu ci gaba na Hubble Space Telescope suka samar don yin bincike da ƙididdigewa tare da kayan aikin IOI sabon nau'in kuzarin da ke cikin faɗaɗa sararin samaniya a cikin sararin samaniya tare da ƙididdige ƙididdiga na ƙididdigar sararin samaniya.

Babban na'urar hangen nesa ta Synoptic Survey 
Boushaki tare da tawagarsa na masu bincike a Jami'ar Texas a Dallas sun samar da kayan aikin su na IOI don sauran masana kimiyya a duk duniya don amfani da su don kula da rashin daidaituwa tsakanin bayanan bayanai.

Wannan haɗin gwiwar kyauta wani ɓangare ne na babban aikin na'ura mai ba da hanya tsakanin hanyoyin sadarwa (LSST) wanda ke ma'amala da ma'auni na rikice-rikice na sararin samaniya da tasirin ɓata lokaci, da aikace-aikacen su zuwa lissafin lissafi da haɓakar saitin bayanai na yanzu, ta hanyar amfani da Instrument Spectroscopic Energy (DESI).

Duba kuma 

 Mustapha Ishak Boushaki

Bayani 

Mustapha Ishak Boushaki
Iyalin Boushaki