Results 61 to 70 of about 8,408 (187)

Spectroscopic detections of CIII]1909 at z~6-7: A new probe of early star forming galaxies and cosmic reionisation [PDF]

, 2014
Deep spectroscopic observations of z~6.5 galaxies have revealed a marked decline with increasing redshift in the detectability of Lyman-alpha emission.
Charlot, Stephane, Clement, Benjamin, Ellis, Richard, Gutkin, Julia, Richard, Johan, Robertson, Brant, Schenker, Matthew, Siana, Brian, Stark, Daniel P., Wofford, Aida   +9 more
core   +5 more sources

The Lyman Alpha Reference Sample. VIII. Characterizing Lyman-Alpha Scattering in Nearby Galaxies

, 2017
32 pages, 51 figures, accepted to ...
Bridge, Joanna S., Hayes, Matthew, Melinder, Jens, Östlin, Göran, Gronwall, Caryl, Ciardullo, Robin, Atek, Hakim, Cannon, John M., Gronke, Max, Guaita, Lucia, Hagen, Alex, Herenz, Edmund Christian, Kunth, Daniel, Laursen, Peter, Mas-Hesse, J. Miguel, Pardy, Stephen A.   +15 more
openaire   +2 more sources

Chemodynamics of Lyman alpha emitters, Lyman break galaxies and elliptical galaxies [PDF]

EAS Publications Series, 2007
We report an ultra-high-resolution simulation that follows evolution from the earliest stages of galaxy formation through the period of dynamical relaxation. The bubble structures of gas revealed in our simulation ($< 3\times 10^8$ years) resemble closely the high-redshift Lyman $ $ emitters (LAEs).
Mori, Masao, Umemura, Masayuki
openaire   +2 more sources

Solar Flare Activity, 1937–2024: Introducing the New Hemispheric Solar Flare Index (hSFI) in the Context of 2024's Major Solar Storm Events

Space Weather, Volume 23, Issue 11, November 2025.
Abstract A new daily composite of the solar flare index (SFI) and the hemispherically‐resolved versions (hSFI) are presented for 1937 to 2024. The data set confirms that the northern hemisphere (NH) dominated solar flare activity during Solar Cycles 17 to 21, but that the southern hemisphere has dominated from Solar Cycle 22 to present.
V. M. Velasco Herrera, W. Soon, S. Knoška, A. Özgüç, G. Velasco Herrera, H. Yeşilyaprak, N. Babynets, M. Švanda, J. Muraközy, S. Qiu, D. Riveros‐Rosas, R. Connolly, M. Connolly, A. Tlatov, L. Cappellotto   +14 more
wiley   +1 more source

The Magellan M2FS Spectroscopic Survey of High-redshift Galaxies: The Brightest Lyman-break Galaxies at z ∼ 6

The Astrophysical Journal
We present a study of a sample of 45 spectroscopically confirmed, UV luminous galaxies at z ∼ 6. They were selected as bright Lyman-break galaxies (LBGs) using deep multiband optical images in more than 2 deg ^2 of the sky, and subsequently identified ...
Shuqi Fu, Linhua Jiang, Yuanhang Ning, Weiyang Liu, Zhiwei Pan   +4 more
doaj   +1 more source

HST Images of a Galaxy Group at z=2.81, and the Sizes of Damped Lyman Alpha Galaxies

, 1998
We present HST WFPC2 observations in three bands (F450W, F467M and F814W) of a group of three galaxies at z=2.8 discovered in a ground-based narrow-band search for Lyman alpha emission near the z=2.8 quasar PKS0528-250.
Moller, Palle, Warren, Stephen J.
core   +1 more source

Lyman-alpha absorbers arising in galaxy clusters

, 1997
2 pages, 2 figures, to appear in the proceedings of the 13th IAP Conference on "Evolution of the Intergalactic Medium From QSO Absorption Line Systems"
Ortiz-Gil, A., Lanzetta, K. M., Webb, J. K., Barcons, X.   +3 more
openaire   +2 more sources

Two Micron‐Size Dark Dimensions

Fortschritte der Physik, Volume 73, Issue 8, August 2025.
Abstract Two extra dimensions of micron scale might simultaneously address the gauge and cosmological hierarchy problems. In this paper various observational bounds in scenarios with one and two large extra dimensions are examined, to see if they are compatible with the micron scale.
Luis A. Anchordoqui, Ignatios Antoniadis, Dieter Lüst   +2 more
wiley   +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

Analysis of carbohydrates and glycoconjugates by matrix‐assisted laser desorption/ionization mass spectrometry: An update for 2021–2022

Mass Spectrometry Reviews, Volume 44, Issue 3, Page 213-453, May/June 2025.
Abstract The use of matrix‐assisted laser desorption/ionization (MALDI) mass spectrometry for the analysis of carbohydrates and glycoconjugates is a well‐established technique and this review is the 12th update of the original article published in 1999 and brings coverage of the literature to the end of 2022.
David J. Harvey
wiley   +1 more source