Results 111 to 120 of about 48,775 (298)

JWST reveals a possible z ∼ 11 galaxy merger in triply-lensed MACS0647–JD [PDF]

, 2022
Tiger Yu-Yang Hsiao, Dan Coe, Abdurro'uf Abdurro'uf, Lily Whitler, Intae Jung, Gourav Khullar, Ashish Kumar Meena, Pratika Dayal, Kirk S. S. Barrow, Lillian Santos-Olmsted, Adam Casselman, E. Vanzella, M. Nonino, Yolanda Jiménez-Teja, Masamune Oguri, Daniel P. Stark, Lukas J. Furtak, Adi Zitrin, Angela Adamo, Gabriel Brammer, Larry Bradley, J. M. Diego, Erik Zackrisson, Steven L. Finkelstein, Rogier A. Windhorst, Rachana Bhatawdekar, Taylor A. Hutchison, Thomas J. Broadhurst, Paola Dimauro, Felipe Andrade-Santos, J. J. Eldridge, Ana Acebrón, Roberto J. Avila, Matthew Bayliss, Alex Benítez, Christian Binggeli, Patricia Bolan, Maruša Bradač, Adam C. Carnall, Christopher J. Conselice, Megan Donahue, Brenda Frye, Seiji Fujimoto, Alaina Henry, Bethan L. James, Susan A. Kassin, Lisa J. Kewley, Rebecca L. Larson, Tod R. Lauer, David R. Law, Guillaume Mahler, Ramesh Mainali, Stephan R. McCandliss, David C. Nicholls, Nor Pirzkal, Marc Postman, Jane R. Rigby, Russell E. Ryan, Peter Senchyna, Keren Sharon, Ikko Shimizu, Victoria Strait, Mengtao Tang, Michele Trenti, Anton Vikaeus, Brian Welch   +65 more
openalex   +1 more source

Out There No One Has a Right to Die

Bioethics, EarlyView.
ABSTRACT The eventual goal of space exploration is to colonize exoplanets and their moons outside our solar system. This is a dangerous and immoral endeavour. The extraterrestrial life forms encountered would be hostile, vulnerable or both, and the descendants of the original pioneers would be involuntarily exposed to hazardous conditions and ...
Matti Häyry
wiley   +1 more source

Unions with UNIONS: Using Galaxy–Galaxy Lensing to Probe Galaxy Mergers

The Astrophysical Journal
We use galaxy–galaxy lensing to investigate how the dark matter (DM) haloes and stellar content of galaxies with 0.012 ≤ z ≤ 0.32 and $10\,\leqslant \,{\mathrm{log}}\,_{10}({M}_{\star }/{M}_{\odot })\,\leqslant \,12$ change as a result of the merger ...
Isaac Cheng, Jack Elvin-Poole, Michael J. Hudson, Ruxin Barré, Sara L. Ellison, Robert W. Bickley, Thomas J. L. de Boer, Sébastien Fabbro, Leonardo Ferreira, Sacha Guerrini, Fabian Hervas Peters, Hendrik Hildebrandt, Martin Kilbinger, Alan W. McConnachie, Ludovic van Waerbeke, Anna Wittje   +15 more
doaj   +1 more source

Mergers of galaxies

This is a pre-print of a chapter for the Encyclopedia of Astrophysics (edited by I. Mandel, section editor S.
openaire   +2 more sources

Formation of a Polar Ring Galaxy in a Galaxy Merger [PDF]

The Astrophysical Journal, 1998
We numerically investigate stellar and gas dynamics in star-forming and dissipative galaxy mergers between two disk galaxies with specific orbital configurations. We find that violent relaxation combined with gaseous dissipation in galaxy merging transforms two disk galaxies into one S0 galaxy with polar-rings: Both the central S0-like host and the ...
openaire   +2 more sources

McFACTS III: Compact Binary Mergers from Active Galactic Nucleus Disks over an Entire Synthetic Universe

The Astrophysical Journal
The active galactic nucleus (AGN) channel for the formation of binary black hole (BBH) mergers has been previously studied as a potential formation channel for the merging compact binaries observed by the LIGO–Virgo–KAGRA (LVK) scientific collaboration ...
Vera Delfavero, K. E. Saavik Ford, Barry McKernan, Harrison E. Cook, Kaila Nathaniel, Jake Postiglione, Shawn Ray, Emily McPike, Richard O’Shaughnessy   +8 more
doaj   +1 more source

Gas flows in galaxy mergers

, 2021
In major galaxy mergers, the orbits of stars are violently perturbed, and gas is torqued to the centre, diluting the gas metallicity and igniting a starburst. In this paper, we study the gas dynamics in and around merging galaxies using a series of cosmological magnetohydrodynamical zoom-in simulations.
Sparre, Martin (Dr.), Whittingham, Joseph (Dr.), Damle, Mitali (Dr.), Hani, Maan H., Richter, Philipp (Prof. Dr.), Ellison, Sara L., Pfrommer, Christoph (Prof. Dr.), Vogelsberger, Mark   +7 more
openaire   +2 more sources

Winter‐active spiders (Clubiona) have a hyperactive antifreeze protein with a unique beta‐solenoid fold

The FEBS Journal, EarlyView.
Antifreeze proteins from winter‐active spiders were purified using their affinity for ice. After LC–MSMS characterization, corresponding transcripts were identified. The antifreeze protein folds as a β‐solenoid with a large flat ice‐binding site on one surface and can bind to ice crystals and prevent their growth at −4 °C.
Laurie A. Graham, Stano Pekár, Ina M. Hainer, Peter L. Davies   +3 more
wiley   +1 more source

Mergers and Recoil in Triple Massive Black Hole Systems from Illustris

The Astrophysical Journal
Massive black hole binaries (MBHBs) form through galaxy mergers and are among the loudest sources of gravitational waves (GWs) in the Universe. If the binary inspiral time is long, a subsequent galaxy merger can introduce a third black hole, forming a ...
Pranav Satheesh, Laura Blecha, Luke Zoltan Kelley   +2 more
doaj   +1 more source

Morphometric and External Injury Characterization of Rainbow Trout (O. mykiss) Used for Stocking in the Alpine River Inn (Bavaria, Germany)

Fisheries Management and Ecology, EarlyView.
ABSTRACT Stocking fish is a common practice in fisheries management, particularly for species of high conservation value or economic importance. Despite its widespread use, systematic evaluation of fish stockings remains scarce. This includes non‐native species such as rainbow trout (Oncorhynchus mykiss), which are intensively stocked into European ...
Christoffer Nagel, David Goldbrunner, Josef Knott, Joachim Pander, Juergen Geist   +4 more
wiley   +1 more source