Results 91 to 100 of about 51,951 (281)

Jet Interaction with Galaxy Cluster Mergers

The Astrophysical Journal
Abstract Active galactic nucleus (AGN) bubbles in cool-core galaxy clusters are believed to facilitate the transport of cosmic-ray electrons (CRe) throughout the cluster. Recent radio observations reveal the complex morphologies of cluster diffuse emission, potentially linked to interactions between AGN bursts and the cluster environment.
P. Domínguez-Fernández, J. ZuHone, R. Weinberger, E. Bellomi, L. Hernquist, P. Nulsen, G. Brunetti   +6 more
openaire   +3 more sources

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, EarlyView.
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

Shining Light on Merging Galaxies I: The Ongoing Merger of a Quasar with a `Green Valley' Galaxy

, 2011
Serendipitous observations of a pair z = 0.37 interacting galaxies (one hosting a quasar) show a massive gaseous bridge of material connecting the two objects.
Abazajian, Abel, Adelman-McCarthy, Allen, Allende Prieto, Bennert, Blanton, Bohlin, Brammer, Bressan, Canalizo, Charlot, Coil, Conroy, Conselice, Cutri, David Rosario, Davis, Ellison, Faber, Ferrarese, Ferrarese, Fu, Gebhardt, Graham, Green, Greene, Hibbard, Hibbard, Hibbard, Ho, Hopkins, Hopkins, J. Xavier Prochaska, Jason Tumlinson, Kelly, Kewley, Kocevski, Kong, Lotz, Magorrian, Martin, Martin, Martini, Martini, Miller, Nandra, Noeske, Noeske, Osterbrock, Oyaizu, Penston, Quintero, Reichard, Richards, Robert L. da Silva, Rosario, Rubin, Schawinski, Schlegel, Shen, Smith, Snyder, Soltan, Sutter, Szentgyorgyi, Tadhunter, Todd M. Tripp, Toomre, Trammell, Vestergaard, Weilbacher, Wilhite, Willmer, Woods, Yan   +75 more
core   +1 more source

Galaxy evolution in the post-merger regime. II -- Post-merger quenching peaks within 500 Myr of coalescence

The Open Journal of Astrophysics
Mechanisms for quenching star formation in galaxies remain hotly debated, with galaxy mergers an oft-proposed pathway. In Ellison et al. (2022) we tested this scenario by quantifying the fraction of recently and rapidly quenched post-starbursts (PSBs) in
Sara Ellison, Leonardo Ferreira, Vivienne Wild, Scott Wilkinson, Kate Rowlands, David R. Patton   +5 more
doaj   +1 more source

Subterranean environments contribute to three‐quarters of classified ecosystem services

Biological Reviews, EarlyView.
ABSTRACT Beneath the Earth's surface lies a network of interconnected caves, voids, and systems of fissures forming in rocks of sedimentary, igneous, or metamorphic origin. Although largely inaccessible to humans, this hidden realm supports and regulates services critical to ecological health and human well‐being.
Stefano Mammola, David Brankovits, Tiziana Di Lorenzo, Isabel R. Amorim, Raluca Ioana Bancila, Adrià Bellvert, Enrico Bernard, Anna Blomberg, Paulo A.V. Borges, Martina Cappelletti, Rodrigo Lopes Ferreira, Rosalina Gabriel, Diana M. P. Galassi, Laura Garzoli, Vasilis Gerovasileiou, Grant C. Hose, Kathryn L. Korbel, Simone Martino, Ana Z Miller, Nataša Mori, Veronica Nanni, Giuseppe Nicolosi, Mattia Saccò, Troy S. Sakihara, Marconi Souza Silva, Anne E. Tamalavage, Maja Zagmajster, Efraín Chávez, Christian Griebler, Pedro Cardoso, Alejandro Martínez   +30 more
wiley   +1 more source

Enhanced Star Formation and Black Hole Accretion Rates in Galaxy Mergers in IllustrisTNG50

The Astrophysical Journal
Many theoretical and observational studies have suggested that galaxy mergers may trigger enhanced star formation or active galactic nucleus activity.
Aimee L. Schechter, Shy Genel, Bryan Terrazas, Julia M. Comerford, Abigail Hartley, Rachel S. Somerville, Rebecca Nevin, Joseph Simon, Erica Nelson   +8 more
doaj   +1 more source

Measuring the Cosmic Web

Open Astronomy, 2011
A quantitative study of the clustering properties of the cosmic web as a function of absolute magnitude and color is presented using the SDSS Data Release 7 galaxy survey. Mark correlations are included in the analysis.
Müller Volker, Hoffmann Kai, Nuza Sebastián E.   +2 more
doaj   +1 more source

Revisiting the Gas Dynamics of Henize 2–10: Possible Drivers of the Starburst

The Astrophysical Journal
The triggers of starburst episodes are a key component to our understanding of the baryon cycle in galaxies. Galaxy mergers are a commonly suggested catalyst for starbursts, but once the galaxies coalesce into a single kinematically disturbed system ...
Josephine M. Dalsin, Allison H. Costa, Remy Indebetouw, Kelsey E. Johnson, Natalie O. Butterfield, Sabrina Stierwalt   +5 more
doaj   +1 more source

AVID: A near-major post-merger of late-type dwarfs beneath a regularly rotating H I disk (VCC 693)

Astronomy & Astrophysics
In the periphery of galaxy clusters, the combination of moderately high galaxy number densities and modest velocity dispersions favors interactions and mergers that affect the galaxy evolution prior to cluster infall.
Li Fujia, Zhang Hong-Xin, Brinks Elias, Oh Se-Heon, Smith Rory, Lin Zesen, Sun Weibin, Sun Yu-Zhu, Li Tie, Kim Minsu, Kim Jaebeom, Chen Lijun, Zhang Lanyue, Côté Patrick, Boselli Alessandro, Duc Pierre-Alain, Ferrarese Laura, Fossati Matteo, Gwyn Stephen, Kong Xu, Paudel Sanjaya, Peng Eric W., Puzia Thomas H., Sánchez-Janssen Rubén, Taylor Matthew, Zhao Yinghe   +25 more
doaj   +1 more source

A Yin-yang Galaxy Cluster Merger in A1914 Revealed by XRISM

The Astrophysical Journal Letters
Hierarchical mergers of galaxy clusters play a key role in converting gravitational energy into thermal and kinetic energy in the local Universe.
Annie Heinrich, Congyao Zhang, Irina Zhuravleva, Eugene Churazov, Hannah McCall, Reinout J. van Weeren, William R. Forman   +6 more
doaj   +1 more source