ʻOi aku ka like o ka exoplanet kokoke iā mākou me ka Honua ma mua o ka mea i manaʻo mua ʻia

ʻO nā mea kani hou a me nā ʻike hou o nā mea lewa i ʻike lōʻihi ʻia e ʻae iā mākou e ʻike i kahi kiʻi maʻalahi o ke Universe a puni mākou. No laila, ʻekolu makahiki i hala, ua hoʻohana ʻia ka spectrograph shell Express me ka pololei kupanaha loa kōkua i ka wehewehe ka nui o ka exoplanet kokoke loa iā mākou ma ka ʻōnaehana Proxima Centauri. ʻO ka pololei o ke ana ʻana he 1/10 o ka nui o ka Honua, kahi i manaʻo ʻia i kēia manawa he moʻolelo ʻepekema.

Ua hoʻolaha mua ʻia ke ola o ka exoplanet Proxima b ma 2013. Ma 2016, ua kōkua ka European Southern Observatory's (ESO) HARPS spectrograph i ka hoʻoholo ʻana i ka nui o ka exoplanet, ʻo ia ka 1,3 Earth. ʻO ka nānā hou ʻana o ka hōkū ʻulaʻula ʻo Proxima Centauri me ka hoʻohana ʻana i ka spectrograph shell ESPRESSO i hōʻike ʻia ua kokoke ka nui o Proxima b i ko ka Honua a he 1,17 o ke kaumaha o ko kākou honua.

Aia ka hōkū ʻulaʻula ʻo Proxima Centauri i 4,2 mau makahiki māmā mai kā mākou ʻōnaehana. He mea maʻalahi loa kēia no ke aʻo ʻana, a he mea maikaʻi loa ʻo ka exoplanet Proxima b, e hoʻopuni ana a puni kēia hōkū me ka manawa o 11,2 mau lā, ua ʻaneʻane he māhoe o ka Honua ma ke ʻano o ka nui a me ka nui o nā hiʻohiʻona. Wehe kēia i ka hiki ke noiʻi hou aku i ka exoplanet, e hoʻomau ʻia me ke kōkua o nā mea kani hou.

ʻO ka mea kūikawā, e loaʻa i ka European Southern Observatory ma Chile kahi High Resolution Echelle Spectrometer (HIRES) a me kahi spectrometer RISTRETTO. Hiki i nā mea hana hou ke hoʻopaʻa i nā spectra i hoʻopuka ʻia e ka exoplanet ponoʻī. ʻO kēia ka mea e hiki ai ke aʻo e pili ana i ke alo a me ke ʻano o ka lewa. Aia ka honua ma kahi i kapa ʻia ʻo habitable zone o kona hōkū, kahi e hiki ai iā mākou ke manaʻolana no ka hiki ʻana mai o ka wai wai ma luna o kona ʻili a, no ke ola ʻana o ke ola.

I ka manawa like, pono e hoʻomanaʻo ʻia ʻo Proxima b he 20 mau manawa kokoke i kona hōkū ma mua o ka Honua i ka Lā. ʻO ia ke ʻano o ka exoplanet i ʻike ʻia i 400 mau manawa ʻoi aku ka nui o ka radiation ma mua o ka Honua. Hiki i ka lewa ʻeleʻele wale ke pale i ke ola olaola ma ka ʻili o kahi exoplanet. Manaʻo nā kānaka ʻepekema e ʻike i kēia mau nuances i nā haʻawina e hiki mai ana.

Source: 3dnews.ru