Results 101 to 110 of about 2,437 (246)

Different Influence of Gas Accretion on the Evolution of Star-forming and Non-star-forming Galaxies

The Astrophysical Journal
Using integral field spectroscopic data from the Mapping Nearby Galaxies at Apache Point Observatory survey, we investigate the spatially resolved properties and empirical relations of a star-forming galaxy and a non-star-forming galaxy hosting ...
Min Bao, Wenlong Zhao, Qirong Yuan
doaj   +1 more source

Hidden No More: Spotlight on Tidal Disruption Events in Active Galactic Nuclei

Astronomische Nachrichten, Volume 347, Issue 5, June 2026.
ABSTRACT Tidal disruption events (TDEs) are typically discovered in previously quiescent galaxies. However, earlier studies have revealed a handful of TDEs occurring in pre‐existing active galactic nuclei (AGN). We discuss AT2019aalc, a promising TDE candidate in an AGN, and compare it to similar sources.
Patrik Milán Veres
wiley   +1 more source

An accretion disk laboratory in the Seyfert 1.9 galaxy NGC 2992 [PDF]

, 2006
Tahir Yaqoob, Kendrah D. Murphy, Yuichi Terashima   +2 more
openalex   +1 more source

Subterranean environments contribute to three‐quarters of classified ecosystem services

Biological Reviews, Volume 101, Issue 3, Page 1582-1605, June 2026.
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

Gas accretion in disk galaxies

, 2013
Gas accretion is necessary to maintain star formation, spiral and bar structure, and secular evolution in galaxies. This can occur through tidal interaction, or mass accretion from cosmic filaments. Different processes will be reviewed to drive gas towards galaxy centers and trigger starbursts and AGN. The efficiency of these dynamical processes can be
openaire   +2 more sources

MiR‐21‐5p Protects Embryonic Growth and Heart Function During Developmental Hypoxia by Dampening HIF Responses and Altering Gene Expression

Comprehensive Physiology, Volume 16, Issue 3, June 2026.
miR‐21‐5p protects embryonic growth and heart function during developmental hypoxia by dampening HIF responses and shifting gene networks toward improved cardiomyocyte survival and calcium handling. This work identifies miR‐21‐5p as a promising therapeutic target for preventing fetal growth restriction and cardiovascular impairment in high‐risk ...
Bernardo J. Krause, Ximena Calle, Ranya V. Kumar, Youguo Niu, Oriana Ramirez‐Herrera, Damariz Gonzalez, Barbara Bernal, Sage G. Ford, Rachael C. Crew, Anna L. K. Cochrane, German A. Arenas, Alex Di Genova, Dino A. Giussani   +12 more
wiley   +1 more source

The Cosmic Evolution of the Supermassive Black Hole Population: A Hybrid Observed Accretion and Simulated Mergers Approach

The Astrophysical Journal
Supermassive black holes (SMBHs) can grow through both accretion and mergers. It is still unclear how SMBHs evolve under these two channels from high redshifts to the SMBH population we observe in the local Universe.
Fan Zou, W. N. Brandt, Elena Gallo, Bin Luo, Qingling Ni, Yongquan Xue, Zhibo Yu   +6 more
doaj   +1 more source

Black hole accretion and host galaxies of obscured quasars in XMM-COSMOS [PDF]

, 2011
V. Mainieri, A. Bongiorno, A. Merloni, M. Aller, M. Carollo, K. Iwasawa, A. M. Koekemoer, M. Mignoli, J. D. Silverman, M. Bolzonella, M. Brusa, A. Comastri, R. Gilli, C. Halliday, O. Ilbert, E. Lusso, M. Salvato, C. Vignali, G. Zamorani, T. Contini, J.-P. Kneib, O. Le Fèvre, S. Lilly, A. Renzini, M. Scodeggio, I. Balestra, S. Bardelli, K. Caputi, G. Coppa, O. Cucciati, S. de la Torre, L. de Ravel, P. Franzetti, B. Garilli, A. Iovino, P. Kampczyk, C. Knobel, K. Kovač, F. Lamareille, J.-F. Le Borgne, V. Le Brun, C. Maier, P. Nair, R. Pello, Y. Peng, E. Perez Montero, L. Pozzetti, E. Ricciardelli, M. Tanaka, L. Tasca, L. Tresse, D. Vergani, E. Zucca, H. Aussel, P. Capak, N. Cappelluti, M. Elvis, F. Fiore, G. Hasinger, C. Impey, E. Le Floc’h, N. Scoville, Y. Taniguchi, J. Trump   +63 more
openalex   +1 more source

Phylogenetic and Environmental Insights Into the Biogeography of the Western Blacknose Dace, Rhinichthys obtusus

Ecology and Evolution, Volume 16, Issue 6, June 2026.
Pleistocene glaciations have shaped freshwater fish evolution and distribution patterns across North America. This study investigated the phylogeographical history of the Western Blacknose Dace (Rhinichthys obtusus) using mitochondrial genomic data, revealing three major clades that diverged 2–1.5 million years ago during Pleistocene glaciations when ...
Adelina Rodriguez, Timothy S. Earley, Samuel Taylor, Thomas E. Dowling, Phillip M. Harris, Jeremy Wright, Antonio Machado‐Allison, Barry Chernoff   +7 more
wiley   +1 more source

Subhalos in Galaxy Clusters: Coherent Accretion and Internal Orbits

The Astrophysical Journal
Subhalo dynamics in galaxy cluster host halos govern the observed distribution and properties of cluster member galaxies. We use the IllustrisTNG simulation to investigate the accretion and orbits of subhalos found in cluster-size halos. We find that the
Chi Han, Kuan Wang, Camille Avestruz, Dhayaa Anbajagane   +3 more
doaj   +1 more source