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JWST and ALMA Multiple-Line Study in and around a Galaxy at : Optical to FIR Line Ratios and the Onset of an Outflow Promoting Ionizing Photon Escape
Seiji Fujimoto, Masami Ouchi, Kimihiko Nakajima +33
We present ALMA deep spectroscopy for a lensed galaxy at with whose optical nebular lines and stellar continuum are detec…
Identification of Large Equivalent Width Dusty Galaxies at 4 z 6 from Sub-mm Colours
Denis Burgarella, Patrice Theulé, Véronique Buat +8
Infrared (IR), sub-millimetre (sub-mm) and millimetre (mm) databases contain a huge quantity of high quality data. However, a large part of these data are photometric, and are thou…
ALMA Observations for CO Emission from Luminous Lyman-break Galaxies at -
Yoshiaki Ono, Seiji Fujimoto, Yuichi Harikane +14
We present our new Atacama Large Millimeter/submillimeter Array (ALMA) observations targeting CO(6-5) emission from three luminous Lyman break galaxies (LBGs) at $z_{\rm spec} = 6.…
CLASSY IV: Exploring UV diagnostics of the interstellar medium in local high- analogs at the dawn of the JWST era
Matilde Mingozzi, Bethan L. James, Karla Z. Arellano-Córdova +22
The COS Legacy Archive Spectroscopic SurveY (CLASSY) HST/COS treasury program provides the first high-resolution spectral catalogue of 45 local high-z analogues in the UV (1200-200…
Red Spiral Galaxies in the Cosmic Noon Unveiled in the First JWST Image
Yoshinobu Fudamoto, Akio K. Inoue, Yuma Sugahara
In the first image of the James Webb Space Telescope (JWST) of SMACS J0723.3-7327, one of the most outstanding features is the emergence of a large number of red spiral galaxies, b…
Bridging Optical and Far-Infrared Emission-Line Diagrams of Galaxies from Local to the Epoch of Reionization: Characteristic High [O III] 88 /SFR at
Yuma Sugahara, Akio K. Inoue, Yoshinobu Fudamoto +3
We present photoionization modeling of galaxy populations at , , and to bridge optical and far-infrared (FIR) emission-line diagrams. We collect galaxies with meas…
The ALMA REBELS Survey: Average [CII] sizes of Star-Forming Galaxies from to
Y. Fudamoto, R. Smit, R. A. A. Bowler +36
We present the average [CII] emission line sizes of UV-bright star-forming galaxies at . Our results are derived from a stacking analysis of [CII] $158\,\rm{…
EMPRESS. V. Metallicity Diagnostics of Galaxies over 12+log(O/H)=~6.9-8.9 Established by a Local Galaxy Census: Preparing for JWST Spectroscopy
Kimihiko Nakajima, Masami Ouchi, Yi Xu +13
We present optical-line gas metallicity diagnostics established by the combination of local SDSS galaxies and the largest compilation of extremely metal-poor galaxies (EMPGs) inclu…
CLASSY II: A technical Overview of the COS Legacy Archive Spectroscopic SurveY
Bethan L. James, Danielle A. Berg, Teagan King +45
The COS Legacy Archive Spectroscopic SurveY (CLASSY) is designed to provide the community with a spectral atlas of 45 nearby star-forming galaxies which were chosen to cover simila…
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…
Estimating Dust Temperature and Far-IR Luminosity of High-Redshift Galaxies using ALMA Single-Band Continuum Observations
Y. Fudamoto, A. K. Inoue, Y. Sugahara
We present a method that derives the dust temperatures and infrared (IR) luminosities of high-redshift galaxies assuming radiation equilibrium in a simple dust and stellar distribu…
Possible Systematic Rotation in the Mature Stellar Population of a Galaxy
Tsuyoshi Tokuoka, Akio K. Inoue, Takuya Hashimoto +13
We present new observations with the Atacama Large Millimeter/submillimeter Array for a gravitationally-lensed galaxy at , MACS1149-JD1. [O III] 88-m emission is detected…
The Age of Discovery with the James Webb: Excavating the Spectral Signatures of the First Massive Black Holes
Kohei Inayoshi, Masafusa Onoue, Yuma Sugahara +2
The James Webb Space Telescope (JWST) will open a new window of the most distant universe and unveil the early growth of supermassive black holes (BHs) in the first galaxies. In pr…
CLASSY III: The Properties of Starburst-Driven Warm Ionized Outflows
Xinfeng Xu, Timothy Heckman, Alaina Henry +18
We report the results of analyses of galactic outflows in a sample of 45 low-redshift starburst galaxies in the COS Legacy Archive Spectroscopic SurveY (CLASSY), augmented by five…
The COS Legacy Archive Spectroscopy SurveY (CLASSY) Treasury Atlas
Danielle A. Berg, Bethan L. James, Teagan King +46
Far-ultraviolet (FUV; ~1200-2000 angstroms) spectra are fundamental to our understanding of star-forming galaxies, providing a unique window on massive stellar populations, chemica…
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…
Big Three Dragons: Molecular Gas in a Bright Lyman-Break Galaxy at
Takuya Hashimoto, Akio K. Inoue, Yuma Sugahara +10
We report ALMA Band 3 observations of CO(6-5), CO(7-6), and [CI](2-1) in B14-65666 (``Big Three Dragons''), one of the brightest Lyman-Break Galaxies at in the rest-frame ult…