Results 101 to 110 of about 210,144 (261)

Adsorption of Helium on Cationic or Anionic Tetracene and Pentacene

Small Structures, Volume 7, Issue 1, January 2026.
How does the arrangement of helium atoms that are adsorbed on tetracene or pentacene ions change with increasing coverage? When does the adsorption layer change from 1D to 2D, and to 3D? Is the transition abrupt? Are the helium atoms localized? Is the arrangement the same for cations and anions? What changes as the acene grows in length?
Miriam Kappe, Florent Calvo, Rasif William, Bilal Rasul, Masoomeh Mahmoodi‐Darian, Paul Scheier, Olof Echt   +6 more
wiley   +1 more source

ON THE [C ii]–SFR RELATION IN HIGH REDSHIFT GALAXIES [PDF]

, 2015
After two Atacama Large Millimeter/submillimeter Array (ALMA) observing cycles, only a handful of [C ii] 158 μm emission line searches in z > 6 galaxies have reported a positive detection, questioning the applicability of the local [C ii]–star formation ...
L. Vallini, S. Gallerani, A. Ferrara, A. Pallottini, B. Yue   +4 more
semanticscholar   +1 more source

Spatial Extent of Molecular Gas, Dust, and Stars in Massive Galaxies at z ∼ 2.2–2.5 Determined with ALMA and JWST

The Astrophysical Journal Letters, 2023
We present the results of 0.″6-resolution observations of CO J = 3 − 2 line emission in 10 massive star-forming galaxies at z ∼ 2.2–2.5 with the Atacama Large Millimeter/submillimeter Array (ALMA).
Ken-ichi Tadaki, Tadayuki Kodama, Yusei Koyama, Tomoko L. Suzuki, Ikki Mitsuhashi, Ryota Ikeda   +5 more
doaj   +1 more source

High Redshift Radio Galaxies with the VLT [PDF]

, 1997
The study of high-$z$ radio galaxies (HZRGs) has matured considerably during the last decade. Large numbers of $z>2$ radio galaxies have been found and have been studied in considerable detail. In this review we will address the importance of the VLT for studies of samples of distant radio galaxies.
Röttgering, H. J. A., Miley, G. K.
openaire   +2 more sources

The visibility of high-redshift galaxies [PDF]

Monthly Notices of the Royal Astronomical Society, 1990
The most visible galaxies (those which have the largest apparent sizes and isophotal luminosities when seen at a given distance) are those with a particular observed surface brightness. Extending this argument to high-redshift galaxies, it is clear that this optimum surface brightness moves progressively to brighter intrinsic surface brightnesses, so ...
S. Phillipps, J. I. Davies, M. J. Disney
openaire   +1 more source

THE CANADA-FRANCE REDSHIFT SURVEY V: Global Properties of the Sample

, 1995
The photometric and spectroscopic data of the CFRS survey of objects with 17.5 < I_{AB} < 22.5 are combined and analysed. The overall completeness is 85%. The redshift histogram of the sample is presented for 591 field galaxies with secure redshifts. The
Crampton, David, Fevre, O. Le, Hammer, F., Lilly, S. J.   +3 more
core   +1 more source

Stellar Masses of High-Redshift Galaxies [PDF]

, 2002
We present constraints on the stellar-mass distribution of distant galaxies. These stellar-mass estimates derive from fitting population-synthesis models to the galaxies' observed multi-band spectrophotometry.
Dickinson, Mark, Ferguson, Harry, Papovich, Casey   +2 more
core   +2 more sources

The Effect of Seductive Details on Knowledge Retention in Physics Videos: A Mixed Methods Study

Journal of Research in Science Teaching, Volume 62, Issue 8, Page 1923-1940, October 2025.
ABSTRACT Research reports that interesting but irrelevant information, seductive details, in teaching material can impede learning. In science education, the inclusion of historical narratives in lessons to promote interest has been recommended but may hinder learning.
Richard Brock, Liam Cini O'Dwyer, Ben Rogers   +2 more
wiley   +1 more source

Stacking PANCAKEZ: Spectroscopic Analysis with NIRSpec Stacks in the Epoch of Reionization. Weak Interstellar Medium Absorption and Implications for Ionizing Photon Escape at z ∼ 7

The Astrophysical Journal
We present a spectral stacking analysis of galaxies at z ≥ 6 observed with the James Webb Space Telescope (JWST). We curate a sample of 64 galaxies spanning redshifts z _spec = 6.0–9.4, which have NIRSpec medium-resolution data.
Kelsey S. Glazer, Tucker Jones, Yuguang Chen, Ryan L. Sanders, Maruša Bradač, Anthony J. Pahl, Alice E. Shapley, Richard S. Ellis, Michael W. Topping, Naveen A. Reddy   +9 more
doaj   +1 more source

Molecular Gas in the z=1.2 Ultraluminous Merger GOODS J123634.53+621241.3 [PDF]

, 2008
We report the detection of CO(2-1) emission from the z=1.2 ultraluminous infrared galaxy (ULIRG) GOODS J123634.53+621241.3 (also known as the sub-millimeter galaxy GN26). These observations represent the first discovery of high-redshift CO emission using
Alexander, Alexandra Pope, Caputi, Chapman, Chary, Cohen, Cowie, Daddi, Daddi, Dannerbauer, David Hawkins, David P. Woody, David T. Frayer, Douglas C.-J. Bock, Douglas Scott, Downes, Frayer, Frayer, Frayer, Frayer, Huynh, James W. Lamb, Jin Koda, John M. Carpenter, Kovács, Lagache, Le Floc'h, Marc W. Pound, Mark Dickinson, Mark Hodges, Minh T. Huynh, Neri, Nicholas Z. Scoville, Papovich, Pope, Ranga-Ram Chary, Richard L. Plambeck, Sault, Sheth, Smail, Solomon, Stephen L. Scott, Tacconi, Tacconi, Wang, Wang, Wirth, Younger, Younger   +48 more
core   +3 more sources