Results 71 to 80 of about 108,043 (278)

The Lyα forest around high-redshift galaxies [PDF]

Monthly Notices of the Royal Astronomical Society, 2003
5 pages, 4 figures, submitted to ...
Bruscoli, M, Ferrara, A., Marri, S., SCHNEIDER, Raffaella, Maselli, A., Rollinde, E., Aracil, B.   +6 more
openaire   +2 more sources

Hitchhiker's Guide to the Swampland: The Cosmologist's Handbook to the String‐Theoretical Swampland Programme

Fortschritte der Physik, Volume 74, Issue 4, April 2026.
Abstract String theory has strong implications for cosmology, implying the absence of a cosmological constant, ruling out single‐field slow‐roll inflation, and that black holes decay. The origins of these statements are elucidated within the string‐theoretical swampland programme.
Kay Lehnert
wiley   +1 more source

An Empirical Consistent Redshift Bias: A Possible Direct Observation of Zwicky’s TL Theory

Particles
Recent advancements have shown tensions between observations and our current understanding of the Universe. Such observations may include the H0 tension and massive galaxies at high redshift that are older than traditional galaxy formation models have ...
Lior Shamir
doaj   +1 more source

The infrared-dark dust content of high redshift galaxies [PDF]

, 2016
We present a theoretical model aimed at explaining the IRX-$\beta$ relation for high redshift (z >5) galaxies. Recent observations (Capak+2015; Bouwens+2016) have shown that early Lyman Break Galaxies, although characterized by a large UV attenuation (e ...
A. Ferrara, H. Hirashita, M. Ouchi, S. Fujimoto   +3 more
semanticscholar   +1 more source

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

Unified Analysis of Fermionic Tunneling, Barrow‐Exponential Entropy Corrections, and Plasma Lensing in Carrollian Reissner‐Nordström Spacetime

Annalen der Physik, Volume 538, Issue 3, March 2026.
Carrollian Reissner‐Nordström black holes are investigated through fermionic tunneling, entropy‐corrected thermodynamics, and plasma‐modified gravitational lensing. The generalized uncertainty principle introduces minimal‐length corrections to the Hawking temperature, while the combined Barrow‐Exponential entropy reveals smooth thermodynamic crossovers
Erdem Sucu, İzzet Sakallı, Yusuf Sucu
wiley   +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

Extended Lyman α haloes around individual high-redshift galaxies revealed by MUSE [PDF]

, 2015
We report the detection of extended Ly alpha emission around individual star-forming galaxies at redshifts z = 3-6 in an ultradeep exposure of the Hubble Deep Field South obtained with MUSE on the ESO-VLT.
L. Wisotzki, R. Bacon, J. Blaizot, J. Brinchmann, J. Brinchmann, E. C. Herenz, J. Schaye, N. Bouché, S. Cantalupo, T. Contini, T. Contini, C. Carollo, J. Caruana, J.-B. Courbot, J.-B. Courbot, E. Emsellem, E. Emsellem, S. Kamann, J. Kerutt, F. Leclercq, S. Lilly, V. Patr'icio, C. Sandin, M. Steinmetz, L. Straka, T. Urrutia, A. Verhamme, A. Verhamme, P. Weilbacher, M. Wendt   +29 more
semanticscholar   +1 more source

A New Padé Approach to Modeling Wormholes in Dekel‐Zhao Dark Matter Halos

Annalen der Physik, Volume 538, Issue 3, March 2026.
A matter‐first Padé strategy is introduced to build traversable wormholes from prescribed dark‐matter halos. Rational Padé fits approximately the Dekel–Zhao density and are analytically integrated to obtain a shape function that exactly reproduces the intended matter content, avoiding spurious poles of geometry‐first schemes.
Jonathan Alves Rebouças, Francisco Tiago Barboza Sampaio, Francisco Bento Lustosa, Leonardo Tavares de Oliveira, C. R. Muniz   +4 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