A Search for H-Dropout Lyman Break Galaxies at z ∼ 12–16

  title={A Search for H-Dropout Lyman Break Galaxies at z ∼ 12–16},
  author={Yuichi Harikane and Akio K. Inoue and Ken Mawatari and Takuya Hashimoto and Satoshi Yamanaka and Yoshinobu Fudamoto and Hiroshi Matsuo and Yoichi Tamura and Pratika Dayal and L. Y. Aaron Yung and Anne Hutter and Fabio Pacucci and Yuma Sugahara and Anton M. Koekemoer},
  journal={The Astrophysical Journal},
We present two bright galaxy candidates at z ∼ 12–13 identified in our H-dropout Lyman break selection with 2.3 deg2 near-infrared deep imaging data. These galaxy candidates, selected after careful screening of foreground interlopers, have spectral energy distributions showing a sharp discontinuity around 1.7 μm, a flat continuum at 2–5 μm, and nondetections at <1.2 μm in the available photometric data sets, all of which are consistent with a z > 12 galaxy. An ALMA program targeting one of the… 

Early Results from GLASS-JWST. III. Galaxy Candidates at z ∼9–15

We present the results of a first search for galaxy candidates at z ∼ 9–15 on deep seven-band NIRCam imaging acquired as part of the GLASS-James Webb Space Telescope (JWST) Early Release Science

Unveiling the Contribution of Population III Stars in Primeval Galaxies at Redshift ≥6

Detection of the first stars has remained elusive so far but their presence may soon be unveiled by upcoming JWST observations. Previous studies have not investigated the entire possible range of

A Lower Bound of Star Formation Activity in Ultra-high-redshift Galaxies Detected with JWST: Implications for Stellar Populations and Radiation Sources

Early results of James Webb Space Telescope observations have delivered bright z ≳ 10 galaxy candidates in greater numbers than expected, enabling construction of rest-frame UV luminosity functions

An extreme blue nugget, UV-bright starburst at z = 3.613 with 90 per cent of Lyman continuum photon escape

We present the discovery and analysis of J1316+2614 at z = 3.6130, a UV-bright star-forming galaxy (MUV ≃ −24.7) with large escape of Lyman continuum (LyC) radiation. J1316+2614 is a young (≃10

On the Probability of the Extremely Lensed z = 6.2 Earendel Source Being a Population III Star

The recent discovery of the extremely lensed Earendel object at z = 6.2 is remarkable in that it is likely a single star or stellar multiple, observed within the first billion years of cosmic

Massive black holes at high redshifts from superconducting cosmic strings

The observation of quasars at high redshifts presents a mystery in the theory of black hole formation. In order to source such objects, one often relies on the presence of heavy seeds (M ≈ 104 − 6

GREX-PLUS: galaxy reionization explorer and planetary universe spectrometer

GREX-PLUS (Galaxy Reionization EXplorer and PLanetary Universe Spectrometer) is a new mission concept for ISAS/JAXA’s strategic L-class mission program in the 2030s. With a 1.2 m aperture, a 50 K

Two Remarkably Luminous Galaxy Candidates at z ≈ 10–12 Revealed by JWST

The first few 100 Myr at z > 10 mark the last major uncharted epoch in the history of the universe, where only a single galaxy (GN-z11 at z ≈ 11) is currently spectroscopically confirmed. Here we



Balmer Break Galaxy Candidates at z ∼ 6: A Potential View on the Star Formation Activity at z ≳ 14

We search for galaxies with a strong Balmer break (Balmer break galaxies; BBGs) at z ∼ 6 over a 0.41 deg2 effective area in the COSMOS field. Based on rich imaging data, including data obtained with

The Bright-end Galaxy Candidates at z ∼ 9 from 79 Independent HST Fields

We present a full data analysis of the pure-parallel Hubble Space Telescope (HST) imaging observations in the Brightest of Reionizing Galaxies Survey (BoRG[z9]) in Cycle 22. The medium-deep exposures

A lack of evolution in the very bright end of the galaxy luminosity function from z ≃ 8 to 10

We utilize deep near-infrared survey data from the UltraVISTA fourth data release (DR4) and the VIDEO survey, in combination with overlapping optical and Spitzer data, to search for bright

The Brightest z ≳ 8 Galaxies over the COSMOS UltraVISTA Field

We present 16 new ultrabright HAB ≲ 25 galaxy candidates at z ∼ 8 identified over the COSMOS/UltraVISTA field. The new search takes advantage of the deepest-available ground-based optical and

Probing cosmic dawn: Ages and star formation histories of candidate z ≥ 9 galaxies

We discuss the spectral energy distributions and physical properties of six galaxies whose photometric redshifts suggest they lie beyond a redshift z ≃ 9. Each was selected on account of a

GOLDRUSH. IV. Luminosity Functions and Clustering Revealed with ∼4,000,000 Galaxies at z ∼ 2–7: Galaxy–AGN Transition, Star Formation Efficiency, and Implication for Evolution at z > 10

We present new measurements of rest-UV luminosity functions and angular correlation functions from 4,100,221 galaxies at z ∼ 2–7 identified in the Subaru/Hyper Suprime-Cam survey and CFHT Large Area

The colour distribution of galaxies at redshift five

We present the results of a study investigating the rest-frame ultra-violet (UV) spectral slopes of redshift z~5 Lyman-break galaxies (LBGs). By combining deep Hubble Space Telescope imaging of the

Quiescent Galaxies 1.5 Billion Years after the Big Bang and Their Progenitors

We report two secure ( ) and one tentative (z ≈ 3.767) spectroscopic confirmations of massive and quiescent galaxies through K-band observations with Keck/MOSFIRE and Very Large Telescope/X-Shooter.

A massive, quiescent galaxy at a redshift of 3.717

Spectroscopic confirmation of a massive, quiescent galaxy at redshift z = 3.717 demonstrates that the galaxy must have formed the majority of its stars quickly, within the first billion years of cosmic history in a short, extreme starburst.

Stellar Velocity Dispersion of a Massive Quenching Galaxy at z = 4.01

We present the first stellar velocity dispersion measurement of a massive quenching galaxy at z = 4. The galaxy is first identified as a massive z ≥ 4 galaxy with suppressed star formation from