Results 51 to 60 of about 108,440 (263)

Logarithmic and Strong Coupling Models in Weyl‐Type f(Q,T)$f(Q,T)$ Gravity

Annalen der Physik, Volume 538, Issue 1, January 2026.
This work explores Weyl‐type f(Q,T) gravity using recent observational datasets — CC, Pantheon+, Union 3.0, and DESI DR2. Through MCMC analysis of logarithmic and strong coupling models, the study reveals a transition from deceleration to acceleration, quintessence‐to‐phantom dynamics, and late‐time consistency with LCDM, offering a geometry‐driven ...
Rahul Bhagat, S. K. Tripathy, B. Mishra
wiley   +1 more source

Lyman Break Analogs: Constraints on the Formation of Extreme Starbursts at Low and High Redshift [PDF]

, 2010
Lyman Break Analogs (LBAs), characterized by high far-UV luminosities and surface brightnesses as detected by GALEX, are intensely star-forming galaxies in the low-redshift universe ($z\sim 0.2$), with star formation rates reaching up to 50 times that of
Basu-Zych, Antara, Gonçalves, Thiago S., Martin, D. Christopher, Overzier, Roderik   +3 more
core   +3 more sources

Galaxies at High Redshift and Reionization

Il Nuovo Cimento B, 2008
ASP Conference Series, Vol. 395 (50 years of NRAO, eds A. Bridle, J. Condon & G. Hunt)
Bunker, A., Stanway, E., Ellis, R., Lacy, M., McMahon, R., Stark, D., Chiu, K., Eyles, L.   +7 more
openaire   +3 more sources

THE PROPERTIES OF HIGH REDSHIFT GALAXIES

Revista Mexicana de Astronomía y Astrofísica, 2022
This work studies the connection between the first galaxies and their hosting dark matter halos in the early Universe when reionization is concluding. Our numerical models (already presented in an earlier study) trace the star formation history at z = 4 - 8, the galaxy stellar mass function, the stellar-to-halo mass distribution, and other high ...
openaire   +2 more sources

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

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

Beyond No No Tension: JWST z > 10 Galaxies Push Simulations to the Limit

The Open Journal of Astrophysics
JWST has identified some of the Universe's earliest galaxies, repeatedly pushing the frontier to ever higher redshifts and stellar masses. The presence of such extreme galaxies at such early times, with large stellar populations and high star-formation ...
Joe McCaffrey, Samantha Hardin, John Wise, John Regan   +3 more
doaj   +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 nature of Long-GRB host galaxies from chemical abundances

, 2010
Gamma-ray bursts (GRBs) are the most energetic events after the Big Bang and they have been observed up to very high redshift. By means of measures of chemical abundances now available for the galaxies hosting such events,thought to originate from the ...
Akerman, Bell, Bissaldi, Boissier, Bradamante, Calura, Calura, Calura, Campisi, Castro Cerón, Cescutti, Chary, Chen, Chiappini, Chiappini, Chisari, Cowie, F. Matteucci, François, Fynbo, Fynbo, Galama, Graham, Greiner, Hjorth, Hou, Iwamoto, J. Yin, Jakobsson, Kistler, Lamb, Lanfranchi, Lapi, Levesque, Levesque, Li, Liang, Mannucci, Mao, Matteucci, Matteucci, Matteucci, Matteucci, Micha▯owski, Møller, Naab, Nuza, Padovani, Pian, Pipino, Pipino, Pipino, Pontzen, Prochaska, Prochaska, Rau, Romano, Romano, Salpeter, Salvaterra, Savaglio, Savaglio, Schmidt, Shapley, Svensson, Tanvir, van den Hoek, Wolf, Wolfe, Woosley, Woosley, Woosley, X. L. Fan, Yin, Yin, Yoon, Zwaan   +76 more
core   +1 more source

Star-forming galaxies in SDSS: signs of metallicity evolution [PDF]

, 2008
Evolution of galaxies through cosmic time has been widely studied at high redshift, but there are a few studies in this field at lower redshifts. However, low-redshifts studies will provide important clues to the evolution of galaxies, furnishing the ...
A. Bongiovanni, A. M. Pérez García, Adelman-McCarthy, Aller, Alloin, Asari, Blanton, Brooks, Bruzual, Buat, Cardelli, Carollo, Cid Fernandes, Cid Fernandes, Denicoló, Dopita, Edmunds, Erb, Finlator, Gunn, H. Castañeda, Henry, J. Cepa, Jansen, Kauffmann, Kennicutt, Kennicutt, Kewley, Kewley, Kewley, Kobayashi, Kobulnicky, Lamareille, Liang, Lilly, M. A. Lara-López, M. Fernández Lorenzo, M. Póvic, M. Sánchez-Portal, Maier, Maier, Mateus, McCall, Nagao, Pagel, Pagel, Pagel, Pettini, Pettini, Pilyugin, Pilyugin, Savaglio, Schlegel, Searle, Shields, Stoughton, Thurston, Tremonti, Vila-Costas, Vílchez   +59 more
core   +1 more source