Results 101 to 110 of about 252,176 (198)

Lyman Break Galaxies at $z\sim5$: Rest-Frame UV Spectra

, 2004
We report initial results for spectroscopic observations of candidates of Lyman Break Galaxies (LBGs) at $z\sim5$ in a region centered on the Hubble Deep Field-North by using the Faint Object Camera and Spectrograph attached to the Subaru Telescope ...
Chisato Watanabe, Ikuru Iwata, Iwata I., Kashikawa N., Kentaro Aoki, Kouji Ohta, Masataka Ando, Masayuki Akiyama, Miyazaki S., Naoyuki Tamura   +9 more
core   +1 more source

Beacons into the Cosmic Dark Ages: Boosted transmission of Ly$\alpha$ from UV bright galaxies at $z \gtrsim 7$ [PDF]

, 2018
Recent detections of Lyman alpha (Ly$\alpha$) emission from $z>7.5$ galaxies were somewhat unexpected given a dearth of previous non-detections in this era when the intergalactic medium (IGM) is still highly neutral.
de Barros, Stephane, Dijkstra, Mark, Fontana, Adriano, Mason, Charlotte A., Mesinger, Andrei, Pentericci, Laura, Trenti, Michele, Treu, Tommaso, Vanzella, Eros   +8 more
core   +2 more sources

Spectroscopic Ultraluminous Lyα Luminosity Functions at z = 5.7 and z = 6.6 from HEROES: Evidence for Ionized Bubbles

The Astrophysical Journal
We present spectroscopic Ly α luminosity functions (LFs) at z = 5.7 and z = 6.6 based on a large 209 source sample of Ly α emitter (LAE) candidates identified in Subaru/Hyper Suprime-Cam narrowband imaging and confirmed with Keck II/DEIMOS spectroscopy ...
A. J. Taylor, A. J. Barger, L. L. Cowie, E. M. Hu, A. Songaila   +4 more
doaj   +1 more source

Impact of Cosmic Ray-driven Outflows on Lyα Emission in Cosmological Simulations

The Astrophysical Journal
Cosmic ray (CR) feedback has been proposed as a powerful mechanism for driving warm gas outflows in galaxies. We use cosmological magnetohydrodynamic simulations to investigate the impact of CR feedback on neutral hydrogen (H i ) in a 10 ^11 M _⊙ dark ...
Taysun Kimm, Julien Devriendt, Francisco Rodríguez Montero, Adrianne Slyz, Jérémy Blaizot, Harley Katz, Beomchan Koh, Hyunmi Song   +7 more
doaj   +1 more source

Cross correlation of Lyman-alpha absorbers with gas-rich galaxies

, 2006
The HI Parkes All Sky Survey (HIPASS) galaxy catalogue is cross-correlated with known low redshift, low column density (N_HI
Ryan-Weber, Emma V.
core   +1 more source

Quasar Negative Feedback to Surrounding Galaxies Probed with Lyα Emitters and Continuum-selected Galaxies

The Astrophysical Journal Letters
We report on the statistical analysis of quasar photoevaporation at z  ∼ 2.2 by comparing the density of surrounding Ly α emitters (LAEs) and continuum-selected galaxies, based on the imaging data of the Hyper Suprime-Cam (HSC) Subaru Strategic Program ...
Yuta Suzuki, Yoshiki Matsuoka, Satoshi Kikuta, Hisakazu Uchiyama, Haruka Kusakabe, Masatoshi Imanishi   +5 more
doaj   +1 more source

Models for Dusty Lyman alpha Emitters at High Redshift

, 1998
Models are presented for the Lyman alpha emission of dusty high-redshift galaxies by combining the Press-Schechter formalism with a treatment of the inhomogeneous dust distribution inside galaxies.
Babul A., Efstathiou G., Gonzalez D. R., Harrington J. P., Hartmann L. W., Kunth D., Leisawitz D., Madau P., Marco Spaans, Primack J. R., Puget J.-P., Quinn T., Spaans M., Terlevich E., Zoltan Haiman   +14 more
core   +1 more source

JWST spectroscopy of z ∼ 5 − 8 UV-selected galaxies: New constraints on the evolution of the Lyα escape fraction in the reionization era

Monthly notices of the Royal Astronomical Society
We describe JWST/NIRSpec prism measurements of Lyα emission in z ≳ 5 galaxies. We identify Lyα detections in 10 out of 69 galaxies with robust rest-optical emission line redshift measurements at 5 ≤ z < 7 in the CEERS and DDT-2750 observations of the ...
Zuyi Chen, D. Stark, C. Mason, M. Topping, L. Whitler, M. Tang, R. Endsley, S. Charlot   +7 more
semanticscholar   +1 more source

Constraints on the z  ∼  6−13 intergalactic medium from JWST spectroscopy of Lyman-alpha damping wings in galaxies

Astronomy & Astrophysics
Context. JWST provides a unique dataset for studying the earliest stages of reionisation at z > 9, promising insights into the first galaxies. Many JWST/NIRSpec prism spectra of z > 5 galaxies have revealed smooth Lyman-alpha breaks, implying damping ...
Mason Charlotte A., Chen Zuyi, Stark Daniel P., Yi Lu Ting, Topping Michael, Tang Mengtao   +5 more
doaj   +1 more source

Lyα emission in galaxies at z ≃ 5 − 6: new insight from JWST into the statistical distributions of Lyα properties at the end of reionization

Monthly notices of the Royal Astronomical Society
JWST has recently sparked a new era of Lyα spectroscopy, delivering the first measurements of the Lyα escape fraction and velocity profile in typical galaxies at z ≃ 6 − 10. These observations offer new prospects for insight into the earliest stages of
M. Tang, D. Stark, R. Ellis, F. Sun, M. Topping, B. Robertson, S. Tacchella, S. Arribas, W. Baker, R. Bhatawdekar, K. Boyett, A. Bunker, S. Charlot, Zuyi Chen, J. Chevallard, Gareth C. Jones, Nimisha Kumari, J. Lyu, R. Maiolino, M. Maseda, A. Saxena, L. Whitler, C. Williams, C. Willott, J. Witstok   +24 more
semanticscholar   +1 more source