activity
20202026
most citedA Comprehensive Study on Galaxies at z~9-16 Found in the Early JWST Data: UV Luminosity Functions and Cosmic Star-Formation History at the Pre-Reionization Epoch

533 citations · 1.1k across the 32 of their papers we have counts for

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Showing 2022Show all

6 papers · 1 filter

astro-ph.GA2022★ 81 cited

Morphologies of Galaxies at Uncovered by JWST/NIRCam Imaging: Cosmic Size Evolution and an Identification of an Extremely Compact Bright Galaxy at

Yoshiaki Ono, Yuichi Harikane, Masami Ouchi +8

We present morphologies of galaxies at resolved by JWST/NIRCam -m imaging. Our sample consists of galaxy candidates identified by stringent dropout and ph…

astro-ph.GA2022★ 533 cited

A Comprehensive Study on Galaxies at z~9-16 Found in the Early JWST Data: UV Luminosity Functions and Cosmic Star-Formation History at the Pre-Reionization Epoch

Yuichi Harikane, Masami Ouchi, Masamune Oguri +6

We conduct a comprehensive study on dropout galaxy candidates at using the first 90 arcmin JWST/NIRCam images taken by the early release observations (ERO) and earl…

astro-ph.GA2022★ 7 cited

The Active Galactic Nuclei in the Hobby-Eberly Telescope Dark Energy Experiment Survey (HETDEX) II. Luminosity Function

Chenxu Liu, Karl Gebhardt, Erin Mentuch Cooper +13

We present the LyA emission line luminosity function (LF) of the Active Galactic Nuclei (AGN) in the first release of the Hobby-Eberly Telescope Dark Energy Experiment Survey (HETD…

astro-ph.GA2022

EMPRESS. IX. Extremely Metal-Poor Galaxies are Very Gas-Rich Dispersion-Dominated Systems: Will JWST Witness Gaseous Turbulent High-z Primordial Galaxies?

Yuki Isobe, Masami Ouchi, Kimihiko Nakajima +49

We present kinematics of 6 local extremely metal-poor galaxies (EMPGs) with low metallicities () and low stellar masses (). Tak…

astro-ph.GA2022★ 18 cited

The Active Galactic Nuclei in the Hobby-Eberly Telescope Dark Energy Experiment Survey (HETDEX) I. Sample selection

Chenxu Liu, Karl Gebhardt, Erin Mentuch Cooper +16

We present the first Active Galactic Nuclei (AGN) catalog in the Hobby-Eberly Telescope Dark Energy Experiment Survey (HETDEX) observed between January 2017 and June 2020. HETDEX i…

astro-ph.CO2022★ 104 cited

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

Akinori Matsumoto, Masami Ouchi, Kimihiko Nakajima +42

The primordial He abundance is a powerful probe of cosmology. Currently, is best determined by observations of metal-poor galaxies, while there are on…