Results 131 to 140 of about 875,936 (205)

Powerful Radio-loud Quasars Are Triggered by Galaxy Mergers in the Cosmic Bright Ages

The Astrophysical Journal
While supermassive black holes are ubiquitous features of galactic nuclei, only a small minority are observed during episodes of luminous accretion. The physical mechanism(s) driving the onset of fueling and ignition in these active galactic nuclei (AGN)
Peter Breiding, Marco Chiaberge, Erini Lambrides, Eileen T. Meyer, S. P. Willner, Bryan Hilbert, Martin Haas, George Miley, Eric S. Perlman, Peter Barthel, Christopher P. O’Dea, Alessandro Capetti, Belinda Wilkes, Stefi A. Baum, Duccio F. Macchetto, William Sparks, Grant Tremblay, Colin Norman   +17 more
doaj   +1 more source

A 400‐Year Antarctic Ice‐Core Perchlorate Record Reveals Variability in Stratospheric Chlorine Chemistry

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract Perchlorate (ClO4−) in polar ice preserves past chlorine oxidation chemistry; however, multi‐centennial Antarctic ClO4− records and the mechanisms controlling their variability remain poorly constrained. Here, we present the first 400‐year (1616−2016) ClO4− record from an Antarctic ice core, revealing two regimes separated around 1980.
Wenzhi Zhou, Su Jiang, Zhe Li, Bo Zhang, Danhe Wang, Dongqi Wang, Guitao Shi   +6 more
wiley   +1 more source

Two Distinct Classes of Quiescent Galaxies at Cosmic Noon Revealed by JWST PRIMER and UNCOVER

The Astrophysical Journal Letters
We present a measurement of the low-mass quiescent size–mass relation at cosmic noon (1 < z < 3) from the JWST PRIMER and UNCOVER treasury surveys, which highlights two distinct classes of quiescent galaxies.
Sam E. Cutler, Katherine E. Whitaker, John R. Weaver, Bingjie Wang, Richard Pan, Rachel Bezanson, Lukas J. Furtak, Ivo Labbe, Joel Leja, Sedona H. Price, Yingjie Cheng, Maike Clausen, Fergus Cullen, Pratika Dayal, Anna de Graaff, Mark Dickinson, James S. Dunlop, Robert Feldmann, Marijn Franx, Mauro Giavalisco, Karl Glazebrook, Jenny E. Greene, Norman A. Grogin, Garth Illingworth, Anton M. Koekemoer, Vasily Kokorev, Danilo Marchesini, Michael V. Maseda, Tim B. Miller, Themiya Nanayakkara, Erica J. Nelson, David J. Setton, Heath Shipley, Katherine A. Suess   +33 more
doaj   +1 more source

Mapping the dynamics, star-formation rates, and chemical properties of galaxies with integral field spectroscopy [PDF]

, 2005
Major advances in the development of instruments for eight and ten meter class telescopes are revolutionising our understanding of galaxy formation. In particular, Integral Field Spectrographs (which produce a three dimensional {x, y, velocity) map of a ...
Swinbank, Anthony Mark, Swinback, Anthony Mark   +1 more
core  

First Results from the Arecibo Galaxy Environment Survey

, 2006
International audienceThe Arecibo Galaxy Environment Survey (AGES) is one of several HI surveys using the new Arecibo L-band Feed Array (ALFA) at Arecibo.
Sabatini, Sabina, Ages, Team, Minchin, Robert F., Catinella, Barbara, Müller, Eric, Schneider, S. E., Stage, M. D., Auld, R. R., Davies, J. I., Linder, Suzanne, Momjian, Emmanuel, van Driel, Willem   +11 more
core   +1 more source

Sleep pattern differences in women at midlife: a large-scale multi-country smartwatch study (SONAR). [PDF]

Sleep
Soares CN, Dinkel-Keuthage C, Baker FC, Kim M, Lee J, Dorey J, Frenz AK, Lee D, Caetano C, Moeller C, Schoof N, Kramer F, Bolinger E, Graziano Custodio M, Choi R, Kanady J, Maki PM.   +16 more
europepmc   +1 more source

Galactic outflows and star-formation quenching: a JWST perspective. [PDF]

Astrophys Space Sci
Davies RL, Belli S.
europepmc   +1 more source

The Cluster Completeness Correction Calculator (c-4): a neural-network framework and pilot application to the LEGUS survey of NGC 628. [PDF]

Mon Not R Astron Soc
Tang J, Grasha K, Różański T, Krumholz MR, Zhang A.   +4 more
europepmc   +1 more source

Deconstructing galaxy evolution

Deconstructing galaxy evolution. Using a new technique we will deconstruct the evolutionary\r\nhistory of individual galaxies. In particular we will measure\r\nrelative ages and chemical properties for a large number of\r\ngalaxies over the full range of

core  

Device and Data Access Considerations for Digital Health Studies Using Consumer-Grade Wearables: An Experience-Based Tutorial. [PDF]

Clin Transl Sci
Zhu M, Spencer JD, Chesak S, Romanowicz M, Chauhan M, Dyrbye LN, Croarkin PE, Bobo WV, Athreya AP.   +8 more
europepmc   +1 more source