極端ê tē-kiû-gōa-he̍k-chheⁿ WASP-121 b ū thih-hō͘ kah phùn-siā-lâu hong

Thian-bûn-ha̍k-ka tī lī tē-kiû 900 kng-nî hn̄g ê tē-kiû-gōa-he̍k-chheⁿ WASP-121 b téng-bīn hoat-hiān ke̍k-toan ê khì-hāu chêng-hóng. Chit-ê he̍k-chheⁿ sī chi̍t-ê chhiau-jia̍t ê bo̍k-chheⁿ, ē tú-tio̍h thih-hō͘ kah kiông-le̍k ê phùn-siā-lâu hong. Su-iōng tī Chile ê Very Large Telescope (VLT), gián-kiù-chiá teh 3-ûi khong-kan lāi-té chhek-liông chit-ê he̍k-chheⁿ ê tāi-khì-chân, hián-sī phùn-siā-lâu, in-ūi in teh chhì-tō sì-chiu-ûi sûn-hân bu̍t-chit, koh teh sio kah kôaⁿ ê pêng-bīn chi-kan sàng khì-thé. Hong ê hêng-thé tùi hiān-chú-sî tùi he̍k-chheⁿ khì-hāu ê liáu-kái thiau-chiàn. Kio-tîⁿ só-tēng chō-sêng he̍k-chheⁿ ji̍t kah àm pêng-bīn chi-kan ke̍k-toan ê un-tō͘ chha-ī, tī sio ê pêng-bīn thih kah kî-thaⁿ ê kim-sio̍k hòng-khì, tī kôaⁿ ê pêng-bīn ning-kìⁿ chòe e̍k-thài kim-sio̍k hō͘. Tī kē-chân tāi-khì-chân hoat-hiān titanium sī bô siūⁿ-siōng--ê, chit-ê gián-kiù kiông-tiau tùi siông-sè ê tē-kiû-gōa-he̍k-chheⁿ hun-sek, tē-bīn koan-chhek ê tiōng-iàu-sèng.