SCOSTEP Fellow Bikin lambar yabo da taron karawa juna sani na kan layi na 22 SCOSTEP/PRESTO "Sakamakon Yanayi na Rauni"

Kwamitin Kimiyya akan Solar-terrestrial Physics (SCOSTEP) Fellow Bikin lambar yabo da taron karo na 22 na SCOSTEP/PRESTO akan layi ta Dr. Nat Gopalswamy za a gudanar da shi akan layi ranar 30 ga Yuli, 2024, 13:00-14:00 UT.

Abstract

Coronal taro ejections (CMEs) an kafa a matsayin na farko tushen m sararin sarari cikin sharuddan manyan geomagnetic hadari da kuma manyan hasken rana makamashi barbashi (SEP). Irin waɗannan CME gabaɗaya suna da babban faɗin kusurwa da babban gudu, yana nuna cewa suna da kuzari sosai. Yayin da yake binciko dalilai na yanayi mai sauƙi a cikin zagayowar rana 24, an gano cewa dangantakar da ke da sauri yana da girma a cikin wannan sake zagayowar fiye da sake zagayowar 23. A wasu kalmomi, don gudun da aka ba, sake zagayowar 24 CMEs sun fi girma fiye da zagayowar-23 guda.

Halo CMEs sun ƙunshi yawan jama'a na musamman na CME waɗanda ke da faɗin isa don bayyana sama da faya-fayen faifai a kowane kusurwoyin matsayi a cikin hasashen jirgin sama. Halo CMEs kuma sun kasance daban-daban a cikin sake zagayowar 24: adadin abubuwan da suka faru bai ragu ba daidai da raguwar Lambar Sunspot (SSN) dangane da sake zagayowar23. An ƙaddamar da cewa yanayin rashin ƙarfi na heliosphere (wanda aka nuna ta hanyar ƙananan heliospheric jimlar matsa lamba da aka auna a 1 au) saboda ƙarancin ƙarancin hasken rana a cikin sake zagayowar 24 ya mayar da martani akan CMEs don sa su bayyana fadi. Irin wannan mayar da martani zai iya bayyana duka dangantakar da aka canza da sauri-nisa da haɓakar halo CME a cikin sake zagayowar 24. An nuna waɗannan ƙaddamarwa don riƙe da kyau a cikin sake zagayowar 25, wanda yake a halin yanzu a cikin matsakaicin lokaci.  

Bugu da ƙari kuma, yanayin heliospheric a cikin sake zagayowar 25 yayi kama da na sake zagayowar 24 yana nuna cewa waɗannan hawan keke biyu suna da irin wannan ƙarfi. A mayar da martani na rauni heliospheric jihar a kan CMEs ya haifar da wani gagarumin raguwa a cikin adadin high-makamashi SEP evets da tsanani geomagnetic hadari. Wannan taron karawa juna sani yana mai da hankali kan hadaddun haɗin kai tsakanin kaddarorin CME, yanayin heliospheric, da sakamakon yanayin sararin samaniya.

Hotuna ta NASA on Unsplash