Results 41 to 50 of about 118,349 (164)

Groups of galaxies in the Center for Astrophysics redshift survey

The Astrophysical Journal, 1989
By applying the Huchra and Geller (1982) objective group identification algorithm to the Center for Astrophysics' redshift survey, a catalog of 128 groups with three or more members is extracted, and 92 of these are used as a statistical sample. A comparison of the distribution of group centers with the distribution of all galaxies in the survey ...
Massimo Ramella, Margaret J. Geller, John P. Huchra   +2 more
openaire   +1 more source

The Nebular Properties of Star-forming Galaxies at Intermediate Redshift from the Large Early Galaxy Astrophysics Census

The Astrophysical Journal, 2022
Abstract We present a detailed study of the partial rest-optical (λ obs ≈ 3600–5600 Å) spectra of N = 767 star-forming galaxies at 0.6 < z < 1.0 from the Large Early Galaxy Astrophysics Census (LEGA-C).
Jakob M. Helton, Allison L. Strom, Jenny E. Greene, Rachel Bezanson, Rachael Beaton   +4 more
openaire   +2 more sources

PERICLES: A Set of Empirical Rotational Isochrones Modeled on Cool Dwarfs in Open Clusters and Wide Binaries

Astronomische Nachrichten, Volume 347, Issue 1, January 2026.
ABSTRACT Isochrones, equal‐age curves, are widely used in astrophysics to estimate stellar ages. Classical stellar parameters are, however, very limited in their usability for main sequence stars because of their weak age‐dependence. Here, rotation period measurements provide complementary information.
David Gruner, Sydney A. Barnes
wiley   +1 more source

Galaxy clusters as astrophysical laboratories and probes of cosmology [PDF]

, 2016
Galaxy clusters are the most recent of cosmological structures to have formed by the present time in the currently favoured hierarchical scenario of structure formation and are widely regarded as powerful probes of cosmology and galaxy formation physics alike.
openaire   +1 more source

Exploring the Effects of Reduced Gravitational Field Impacts on Convective Heat Transfer: A Comprehensive Review

Heat Transfer, Volume 55, Issue 1, Page 764-774, January 2026.
ABSTRACT This review explores the impact of gravitational instability on convective heat transfer, integrating existing research results and theoretical models. Gravitational instability is vital in promoting or hindering convective actions in different systems, such as atmospheric events, ocean currents, and industrial processes.
Hossam A. Nabwey, Muhammad Ashraf, A. M. Rashad, Ali J. Chamkha   +3 more
wiley   +1 more source

GASP XXIII: A Jellyfish Galaxy as an Astrophysical Laboratory of the Baryonic Cycle [PDF]

The Astrophysical Journal, 2019
Abstract With MUSE, Chandra, VLA, ALMA, and UVIT data from the GASP program, we study the multiphase baryonic components in a jellyfish galaxy (JW100) with a stellar mass 3.2 × 1011 M ⊙ hosting an active galactic nucleus (AGN).
Bianca M. Poggianti, Alessandro Ignesti, Myriam Gitti, Anna Wolter, Fabrizio Brighenti, Andrea Biviano, Koshy George, Benedetta Vulcani, Marco Gullieuszik, Alessia Moretti, Rosita Paladino, Daniela Bettoni, Andrea Franchetto, Yara L. Jaffé, Mario Radovich, Elke Roediger, Neven Tomičić, Stephanie Tonnesen, Callum Bellhouse, Jacopo Fritz, Alessandro Omizzolo   +20 more
openaire   +6 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

Cross-correlation of the astrophysical gravitational-wave background with galaxy clustering

Physical Review D, 2020
We investigate the correlation between the distribution of galaxies and the predicted gravitational-wave background of astrophysical origin. We show that the large angular scale anisotropies of this background are dominated by nearby non-linear structure, which depends on the notoriously hard to model galaxy power spectrum at small scales. In contrast,
Guadalupe Cañas-Herrera, Omar Contigiani, Valeri Vardanyan   +2 more
openaire   +4 more sources

Astrophysical tests of modified gravity: Stellar and gaseous rotation curves in dwarf galaxies [PDF]

Physical Review D, 2018
Updated to match published ...
Vikram, Vinu, Sakstein, Jeremy, Davis, Charles, Neil, Andrew   +3 more
openaire   +2 more sources

Deep‐Ultraviolet (DUV) Raman and Fluorescence of Perchlorates and Chlorates: Implications for the Detection of Oxychlorines by the SHERLOC Instrument in Jezero Crater, Mars

Earth and Space Science, Volume 13, Issue 1, January 2026.
Abstract Oxychlorines (i.e., perchlorates (ClO4−) and chlorates (ClO3−)) have been detected by several landed missions on Mars at various locations. These missions have provided crucial information about the geographic distribution and abundances of oxychlorines on Mars but have not definitively identified the cation and anion type of in situ, solid ...
J. V. Clark, R. S. Jakubek, P. Conrad, E. Cardarelli, D. Buckner, A. Corpolongo, W. J. Abbey, K. Hand, M. Fries, P. Casbeer, S. Siljeström, F. M. McCubbin, S. Sharma, C. Lee, R. Bhartia, A. Steele   +15 more
wiley   +1 more source