Results 51 to 60 of about 14,841,931 (226)

Galaxies at High Redshifts

, 1998
To appear in "Large Scale Structure: Tracks and Traces", Proceedings of the 12th Potsdam Cosmology Workshop, eds. V. M"uller, S. Gottl"ober, J. P. M"ucket, J. Wambsganss, (Singapore: World Scientific), 1998. 9 LaTeX pages, including 5 figures.
Yahil, A., Lanzetta, K. M., Fernandez-Soto, A.   +2 more
openaire   +2 more sources

Seedless One‐Pot Synthesis of Colloidal InAs Quantum Dots Enabling a High‐Accuracy Photoplethysmography Oximeter

Advanced Science, Volume 13, Issue 38, 9 July 2026.
A real‐time, non‐contact photoplethysmography (PPG) system based on InAs colloidal quantum dots (CQDs) synthesized via a seedless injection synthesis is demonstrated. The measured oxygen saturation shows considerable agreement with commercial PPG devices.
Beom Kwan Kim, Seungin Jee, Yongnam Ahn, In‐Suh Lee, Dongeon Kim, Seongchong Park, Yujin Jung, In‐Ho Bae, Se‐Woong Baek   +8 more
wiley   +1 more source

Clustering and redshift-space distortions in QSO and galaxy surveys [PDF]

, 2006
In this thesis, we exploit the potential of existing QSO and galaxy surveys for investigating the nature of the large scale structure in the Universe. A detailed analysis of clustering and redshift- space distortions allows us to constrain cosmological ...
Cruz da Angela, José Antonio, José Antonio Cruz da Angela   +1 more
core  

The THESEUS Space Mission and the Infrared Telescope Calibration Unit

Astronomische Nachrichten, Volume 347, Issue 6, July 2026.
ABSTRACT The Transient High‐Energy Sky and Early Universe Surveyor (THESEUS) is an ESA M7 mission concept currently in Phase A, designed to exploit gamma‐ray bursts to probe the early Universe while advancing multi‐messenger and time‐domain astrophysics. To achieve its ambitious goals, THESEUS will combine wide‐band x‐ray and gamma‐ray monitors with an
András Péter Joó, Rebeka Gyöngyi Kiss, Lorenzo Amati, Bendegúz Koncz, Örs Detre, Gyula Zilizi, Zsolt Bagoly, István I. Rácz, Sándor Pintér, L. Viktor Tóth   +9 more
wiley   +1 more source

First Detection of CO Isotopologues in a High-redshift Main-sequence Galaxy: Evidence of a Top-heavy Stellar Initial Mass Function

The Astrophysical Journal
Recent observations and theories have presented a strong challenge to the universality of the stellar initial mass function (IMF) in extreme environments. A notable example has been found for starburst conditions, where evidence favors a top-heavy IMF, i.
Ziyi Guo, Zhi-Yu Zhang, Zhiqiang Yan, Eda Gjergo, Allison W. S. Man, R. J. Ivison, Xiaoting Fu, Yong Shi   +7 more
doaj   +1 more source

Feasibility Study for Application of Digitized Henize Mt. Wilson Michigan Southern Sky Hα$$ \boldsymbol{\alpha} $$ Survey Low‐Dispersive Spectral Plates for Searches for Anomalous and Highly Redshifted Objects

Astronomische Nachrichten, Volume 347, Issue 6, July 2026.
ABSTRACT The goal of this study is to confirm the feasibility of the use of digitized low dispersive MtWilson Michigan Southern Sky Hα$$ \alpha $$ survey astronomical photographic plates for modern astrophysical research. The detection of highly redshifted objects, such as early galaxies and quasars, is fundamental to understanding the universe's ...
Tauseef Ahmad Zafar, René Hudec, Marta Mara Merono Vidagany, Fehmi Mejri   +3 more
wiley   +1 more source

The effect of the environment on the evolution of galaxy colours [PDF]

, 2006
In chapter 1 of this thesis, I give a brief overview of the birth of modern cosmology and the growth of the current paradigm. I then go on to describe the different types of galaxies, the star formation rates within them and give some notes about galaxy ...
Davies, Gregory Tudor
core  

BEACON: JWST NIRCam Pure-parallel Imaging Survey. III. Constraints on the Ultraviolet Luminosity Function and the Clustering of z ∼ 7–14 Galaxies

The Astrophysical Journal
The James Webb Space Telescope (JWST) has extended the frontier of galaxy detection to redshifts z  > 11, finding a high abundance of UV-bright sources that challenge theoretical models.
Kimi C. Kreilgaard, Charlotte A. Mason, Takahiro Morishita, Yechi Zhang, Viola Gelli, Nicha Leethochawalit, Tommaso Treu, Michele Trenti, Abdurro’uf, Hakim Atek, Maruša Bradac, Larry D. Bradley, Andrew J. Bunker, Novan Saputra Haryana, Matthew J. Hayes, Zhaoran Liu, Vihang Mehta, Marc Rafelski, Guido Roberts-Borsani, Claudia Scarlata, Massimo Stiavelli, Ryo A. Sutanto, Kosuke Takahashi, Benedetta Vulcani   +23 more
doaj   +1 more source

Supramolecular Aggregates of Amino Acid‐Functionalized 1,8‐Naphthalimides for Chiral Recognition

Chemistry–Methods, Volume 6, Issue 7, July 2026.
We synthesized three self‐assembling, amino acid‐functionalized 1,8‐naphthalimides. We studied their aggregation in solution and demonstrated their chiral recognition ability by fluorescence and resonance light scattering measurements. Notably, these fluorescent probes maintain their chiral recognition ability when incorporated in solid supports like ...
Salvatore Marullo, Francesca D’Anna
wiley   +1 more source

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