Results 151 to 160 of about 206,467 (307)

Imaging of Three Possible Low Redshift Analogs to High Redshift Compact Red Galaxies

, 2011
As part of a larger program to identify and characterize possible low-redshift analogs to massive compact red galaxies found at high redshift, we have examined the morphologies of three low-redshift compact galaxies drawn from the sample of Trujillo et ...
Alan Stockton, Blanton, Buitrago, Calzetti, Daddi, Damjanov, Fan, Franx, Hsin-Yi Shih, Khochfar, Kriek, Muzzin, Peng, Stockton, Stockton, Stockton, Taylor, Toft, Trujillo, van Dokkum, van Dokkum, Wuyts, Zirm   +22 more
core   +1 more source

Late-time growth weakly affects the significance of high-redshift massive galaxies

The Open Journal of Astrophysics
Recent observations by the James Webb Space Telescope have revealed massive galaxies at very high redshift ($z\simeq 7-15$). The question of whether the existence of such galaxies is expected in the corresponding JWST surveys has received a lot of ...
Qianran Xia, Dragan Huterer, Nhat-Minh Nguyen   +2 more
doaj   +1 more source

Inkjet Printed Photonic Cellulose Nanocrystal Patterns

Advanced Materials, Volume 36, Issue 1, January 4, 2024.
Patterned arrays of photonic cellulose nanocrystal microfilms are prepared by inkjet printing. By dispensing directly through an oil layer, the printing and drying processes can be decoupled, which avoids the coffee stain effect and enables complex arrays to be produced.
Cyan A. Williams, Richard M. Parker, Andrew Kyriacou, Maria Murace, Silvia Vignolini   +4 more
wiley   +1 more source

Topology of the Galaxy Distribution in the Hubble Deep Fields

, 2000
We have studied topology of the distribution of the high redshift galaxies identified in the Hubble Deep Field (HDF) North and South. The two-dimensional genus is measured from the projected distributions of the HDF galaxies at angular scales from $3.8''$
Clements D. L., Coles P., Coles P., Coles P., Colley W. N., Madau P.   +5 more
core   +1 more source

MAMMOTH-Subaru. IV. Large Scale Structure and Clustering Analysis of Lyα Emitters and Lyα Blobs at z = 2.2–2.3

The Astrophysical Journal
We report the large scale structure and clustering analysis of Ly α emitters (LAEs) and Ly α blobs (LABs) at z  = 2.2–2.3. Using 3341 LAEs, 117 LABs, and 58 bright (Ly α luminosity L _Ly _α  > 10 ^43.4 erg s ^−1 ) LABs at z  = 2.2–2.3 selected with ...
Haibin Zhang, Zheng Cai, Mingyu Li, Yongming Liang, Nobunari Kashikawa, Ke Ma, Yunjing Wu, Qiong Li, Sean D. Johnson, Satoshi Kikuta, Masami Ouchi, Xiaohui Fan, Yuanhang Ning   +12 more
doaj   +1 more source

A search for distant radio galaxies from SUMSS and NVSS: III. radio spectral energy distributions and the z-alpha correlation

, 2006
This is the third in a series of papers that present observations and results for a sample of 76 ultra-steep-spectrum radio sources designed to find galaxies at high redshift.
Bryant, J. J., De Breuck, C., Ekers, R. D., Hunstead, R. W., Klamer, I. J., Sadler, E. M.   +5 more
core   +1 more source

High redshift galaxy surveys [PDF]

SPIE Proceedings, 2008
Plenary talk given on 25 June at the SPIE 2008 symposium on "Astronomical Instrumentation" in Marseiile, 10 ...
openaire   +2 more sources

Multivariate Predictors of Lyman Continuum Escape. II. Predicting Lyman Continuum Escape Fractions for High-redshift Galaxies

The Astrophysical Journal
JWST is uncovering the properties of ever-increasing numbers of galaxies at z > 6, during the epoch of reionization. Connecting these observed populations to the process of reionization requires understanding how efficiently they produce Lyman continuum (
Anne E. Jaskot, Anneliese C. Silveyra, Anna Plantinga, Sophia R. Flury, Matthew Hayes, John Chisholm, Timothy Heckman, Laura Pentericci, Daniel Schaerer, Maxime Trebitsch, Anne Verhamme, Cody Carr, Henry C. Ferguson, Zhiyuan Ji, Mauro Giavalisco, Alaina Henry, Rui Marques-Chaves, Göran Östlin, Alberto Saldana-Lopez, Claudia Scarlata, Gábor Worseck, Xinfeng Xu   +21 more
doaj   +1 more source

Further Evidence that the Redshifts of AGN Galaxies May Contain Intrinsic Components

, 2007
In the decreasing intrinsic redshift (DIR) model galaxies are assumed to be born as compact objects that have been ejected with large intrinsic redshift components, z_(i), out of the nuclei of mature AGN galaxies.
Antonucci R., Arp H., M. B. Bell, Stickel M.   +3 more
core   +1 more source

JWST NIRSpec Spectroscopy of the Remarkable Bright Galaxy GHZ2/GLASS-z12 at Redshift 12.34

The Astrophysical Journal
We spectroscopically confirm the M _UV = −20.5 mag galaxy GHZ2/GLASS-z12 to be at redshift z = 12.34. The source was selected via NIRCam photometry in GLASS-JWST Early Release Science data, providing the first evidence of a surprising abundance of bright
Marco Castellano, Lorenzo Napolitano, Adriano Fontana, Guido Roberts-Borsani, Tommaso Treu, Eros Vanzella, Jorge A. Zavala, Pablo Arrabal Haro, Antonello Calabrò, Mario Llerena, Sara Mascia, Emiliano Merlin, Diego Paris, Laura Pentericci, Paola Santini, Tom J. L. C. Bakx, Pietro Bergamini, Guido Cupani, Mark Dickinson, Alexei V. Filippenko, Karl Glazebrook, Claudio Grillo, Patrick L. Kelly, Matthew A. Malkan, Charlotte A. Mason, Takahiro Morishita, Themiya Nanayakkara, Piero Rosati, Eleonora Sani, Xin Wang, Ilsang Yoon   +30 more
doaj   +1 more source