Results 141 to 150 of about 266,062 (301)

Quantum GraviElectro Dynamics

Annalen der Physik, Volume 538, Issue 1, January 2026.
The BRST invariant Lagrangian of the gravitationally interacting U(1)$U(1)$ gauge theory, namely the Quantum GraviElectro Dynamics (QGED). The Yan–Mills theory with the Hilbert–Einstein gravitational Lagrangian, namely the Yang–Mills–Utiyama (YMU) theory, is defined and quantised using the standard procedure. The theory is perturbatively renormalisable,
Yoshimasa Kurihara
wiley   +1 more source

The MUSE-Wide survey: A first catalogue of 831 emission line galaxies [PDF]

, 2017
Edmund Christian Herenz, Tanya Urrutia, Lutz Wisotzki, Josephine Kerutt, Rikke Saust, Maria Werhahn, Kasper Borello Schmidt, Joseph Caruana, Catrina Diener, Roland Bacon, Jarle Brinchmann, Joop Schaye, Michael Maseda, Peter M. Weilbacher   +13 more
openalex   +3 more sources

Emission-Line Galaxies from the HST PEARS Grism Survey I: The South Fields

, 2009
We present results of a search for emission-line galaxies in the Southern Fields of the Hubble Space Telescope PEARS (Probing Evolution And Reionization Spectroscopically) grism survey.
Alighieri, S. D. S., Cohen, S. H., Gardner, J. P., Grogin, N., Gronwall, C., Hathi, N. P., Jansen, R. A., Malhotra, S., Meurer, G. R., Panagia, N., Pasquali, A., Pirzkal, N., Rhoads, J., Straughn, A. N., Walsh, J., Windhorst, R. A., Xu, C.   +16 more
core   +1 more source

Population synthesis of HII galaxies [PDF]

, 2000
We study the stellar population of galaxies with active star formation, determining ages of the stellar components by means of spectral population synthesis of their absorption spectra.
Bica, E., Melnick, J., Raimann, D., Schmitt, H., Storchi-Bergmann, T.   +4 more
core   +3 more sources

Nebular Emission Line Ratios in z ≃ 2–3 Star-forming Galaxies with KBSS-MOSFIRE: Exploring the Impact of Ionization, Excitation, and Nitrogen-to-Oxygen Ratio [PDF]

, 2016
We present a detailed study of the rest-optical (3600–7000 Å) nebular spectra of ∼380 star-forming galaxies at , obtained with Keck/Multi-object Spectrometer for Infrared Exploration (MOSFIRE) as part of the Keck Baryonic Structure Survey (KBSS).
A. Strom, C. Steidel, G. Rudie, R. Trainor, M. Pettini, N. Reddy   +5 more
semanticscholar   +1 more source

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

UNCOVERing the High-redshift AGN Population among Extreme UV Line Emitters

The Astrophysical Journal
JWST has revealed diverse new populations of high-redshift ( z  ∼ 4–11) active galactic nuclei (AGNs) and extreme star-forming galaxies that challenge current photoionization models.
Helena Treiber, Jenny E. Greene, John R. Weaver, Tim B. Miller, Lukas J. Furtak, David J. Setton, Bingjie Wang, Anna de Graaff, Rachel Bezanson, Gabriel Brammer, Sam E. Cutler, Pratika Dayal, Robert Feldmann, Seiji Fujimoto, Andy D. Goulding, Vasily Kokorev, Ivo Labbe, Joel Leja, Danilo Marchesini, Themiya Nanayakkara, Erica Nelson, Richard Pan, Sedona H. Price, Jared Siegel, Katherine A. Suess, Katherine E. Whitaker   +25 more
doaj   +1 more source

Gas metallicity diagnostics in star-forming galaxies

, 2006
Generally the gas metallicity in distant galaxies can only be inferred by using a few prominent emission lines. Various theoretical models have been used to predict the relationship between emission line fluxes and metallicity, suggesting that some line ...
A. Marconi, Abazajian, Abazajian, Adelman-McCarthy, Allende Prieto, Alloin, Alvensleben, Bresolin, Brinchmann, Bruzual, Cardelli, Castellanos, Charlot, Denicoló, Edmunds, Ferland, Ferland, Fioc, Guseva, Guseva, Guseva, Guseva, Izotov, Izotov, Izotov, Izotov, Izotov, Izotov, Izotov, Kauffmann, Kauffmann, Kennicutt, Kennicutt, Kennicutt, Kewley, Kewley, Kobulnicky, Kobulnicky, Lamareille, Lee, Lee, Lee, Leitherer, Liang, Maier, Maier, McCall, McGaugh, Melbourne, Miller, Nagao, Nagao, Pagel, Pagel, Papaderos, Peimbert, Pettini, Pettini, Pilyugin, Posselt, R. Maiolino, Rola, Shi, Stasinska, Strauss, Sutherland, Swinbank, T. Nagao, Teplitz, Teplitz, Thuan, Tremonti, Vílchez, Zaritsky   +73 more
core   +1 more source

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

H i Properties of Field Galaxies at z ≈ 0.2–0.6: Insights into Declining Cosmic Star Formation

The Astrophysical Journal Letters
We report statistically significant detection of H i 21 cm emission from intermediate-redshift ( z  ≈ 0.2–0.6) galaxies. By leveraging multisightline galaxy survey data from the Cosmic Ultraviolet Baryon Survey and deep radio observations from the ...
David DePalma, Neeraj Gupta, Hsiao-Wen Chen, Robert A. Simcoe, Sergei Balashev, Erin Boettcher, Sebastiano Cantalupo, Mandy C. Chen, Françoise Combes, Claude-André Faucher-Giguère, Sean D. Johnson, Hans-Rainer Klöckner, Jens-Kristian Krogager, Jennifer I-Hsiu Li, Sebastián López, Pasquier Noterdaeme, Patrick Petitjean, Zhijie Qu, Gwen C. Rudie, Joop Schaye, Fakhri Zahedy   +20 more
doaj   +1 more source