EMPRESS. VIII. A New Determination of Primordial He Abundance with Extremely Metal-poor Galaxies: A Suggestion of the Lepton Asymmetry and Implications for the Hubble Tension

The primordial He abundance Y P is a powerful probe of cosmology. Currently, Y P is best determined by observations of metal-poor galaxies, while there are only a few known local extremely metal-poor (

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Veröffentlicht in:	The Astrophysical journal 2022-12, Vol.941 (2), p.167
Hauptverfasser:	Matsumoto, Akinori, Ouchi, Masami, Nakajima, Kimihiko, Kawasaki, Masahiro, Murai, Kai, Motohara, Kentaro, Harikane, Yuichi, Ono, Yoshiaki, Kushibiki, Kosuke, Koyama, Shuhei, Aoyama, Shohei, Konishi, Masahiro, Takahashi, Hidenori, Isobe, Yuki, Umeda, Hiroya, Sugahara, Yuma, Onodera, Masato, Nagamine, Kentaro, Kusakabe, Haruka, Hirai, Yutaka, Moriya, Takashi J., Shibuya, Takatoshi, Komiyama, Yutaka, Fukushima, Keita, Fujimoto, Seiji, Hattori, Takashi, Hayashi, Kohei, Inoue, Akio K., Kikuchihara, Shotaro, Kojima, Takashi, Koyama, Yusei, Lee, Chien-Hsiu, Mawatari, Ken, Miyata, Takashi, Nagao, Tohru, Ozaki, Shinobu, Rauch, Michael, Saito, Tomoki, Suzuki, Akihiro, Takeuchi, Tsutomu T., Umemura, Masayuki, Xu, Yi, Yabe, Kiyoto, Zhang, Yechi, Yoshii, Yuzuru
Format:	Artikel
Sprache:	eng
Schlagworte:	Algorithms Astronomical models Astrophysics Asymmetry Big Bang nucleosynthesis Collaboration Cosmological parameters Cosmology Deuterium Emission measurements Galaxies Galaxy abundances Galaxy chemical evolution Helium Leptons Markov chains Metals Near infrared radiation Neutrinos Spectroscopy Stars & galaxies
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