Results 91 to 100 of about 9,154 (212)

Photometric Objects Around Cosmic Webs (PAC). VII. Disentangling Mass and Environment Quenching with the Aid of Galaxy–Halo Connection in Simulations

The Astrophysical Journal
Star formation quenching in galaxies plays a crucial role in galaxy evolution and is believed to be driven primarily by galaxy mass and environment.
Yun Zheng, Kun Xu, Donghai Zhao, Y. P. Jing, Hongyu Gao, Xiaolin Luo, Ming Li   +6 more
doaj   +1 more source

A Cosmological Framework for the Co-Evolution of Quasars, Supermassive Black Holes, and Elliptical Galaxies: II. Formation of Red Ellipticals

, 2007
(Abridged) We develop and test a model for the cosmological role of mergers in the formation and quenching of red, early-type galaxies. Making the ansatz that star formation is quenched after a gas-rich, spheroid-forming major merger, we demonstrate that
Athanassoula E., Bower R. G., Cattaneo A., Combes F., Cooper M. C., Dekel A., Dušan Kereš, Hopkins P. F., Krivitsky D. S., Lars Hernquist, Pfenniger D., Philip F. Hopkins, Pipino A., Rees M. J., Soltan A., Thomas J. Cox, Weinmann S. M., White S. D. M.   +17 more
core   +1 more source

Story2Board: A Training‐Free Approach for Expressive Visual Storytelling

Computer Graphics Forum, EarlyView.
Abstract We present Story2Board, a training‐free framework for expressive storyboard generation from natural language. Existing methods narrowly focus on subject identity, overlooking key aspects of visual storytelling such as spatial composition, background evolution, and narrative pacing.
D. Dinkevich, M. Levy, O. Avrahami, D. Samuel, D. Lischinski   +4 more
wiley   +1 more source

Galaxy Zoo: evidence for rapid, recent quenching within a population of AGN host galaxies [PDF]

Monthly Notices of the Royal Astronomical Society, 2016
We present a population study of the star formation history of 1244 Type 2 AGN host galaxies, compared to 6107 inactive galaxies. A Bayesian method is used to determine individual galaxy star formation histories, which are then collated to visualise the distribution for quenching and quenched galaxies within each population.
Smethurst, R. J., Lintott, C. J., Simmons, B. D., Schawinski, K., Bamford, S. P., Cardamone, C. N., Kruk, S. J., Masters, K. L., Urry, C. M., Willett, K. W., Wong, O. I.   +10 more
openaire   +6 more sources

Double trouble: Two spectroscopically confirmed low-mass quiescent galaxies at z > 5 in overdensities

Astronomy & Astrophysics
We present the discovery of two low-mass, high-redshift quiescent galaxies, GS-z5-Q1 and COS-z5-Q1, using JWST NIRSpec spectroscopy alongside NIRCam and MIRI photometry.
Baker William M., Ito Kei, Valentino Francesco, Zhu Pengpei, Scarpe Gianluca, Gottumukkala Rashmi, Hjorth Jens, Barrufet Laia, Langeroodi Danial   +8 more
doaj   +1 more source

Infalling groups and galaxy transformations in the cluster A2142

, 2017
We study galaxy populations and search for possible merging substructures in the rich galaxy cluster A2142. Normal mixture modelling revealed in A2142 several infalling galaxy groups and subclusters.
Deshev, Boris, Einasto, Jaan, Einasto, Maret, Gramann, Mirt, Heinämäki, Pekka, Kipper, Rain, Lietzen, Heidi, Park, Changbom, Saar, Enn, Tempel, Elmo   +9 more
core   +1 more source

DiskScissors: Cutting Arbitrary‐Topology Solids for Bijective Mapping

Computer Graphics Forum, EarlyView.
Abstract An algorithm for cutting solid objects in a topology‐controlled manner is presented. Concretely, given a loop on the object boundary, a disk‐topology cut surface bounded by the loop is constructed in the interior. In contrast to various previous approaches, both disk topology and conformance to the prescribed loop are ensured by construction ...
S. Hinderink, M. Campen
wiley   +1 more source

Dwarf Galaxies in the TNG50 Field: connecting their Star-formation Rates with their Environments

The Open Journal of Astrophysics
The dwarf galaxies comparable to the LMC and SMC, with stellar masses $7.5
Joy Bhattacharyya, Annika H.G. Peter, Alexie Leauthaud   +2 more
doaj   +1 more source

Questions Should Have Answers

European Journal of Philosophy, EarlyView.
ABSTRACT Making sense of the world often requires one to come up with new ideas, including ideas one had previously been unable to think of. How and when should this be done? I propose and defend a norm of rationality linking wondering, belief, and abilities to conceive: one must not both wonder a question and reject all answers to it that one can ...
Michael Deigan
wiley   +1 more source

On the Origin of Quenched but Gas-rich Regions at Kiloparsec Scales in Nearby Galaxies

The Astrophysical Journal
We use resolved spectroscopy from MaNGA to investigate the significance of both local and global properties of galaxies to the cessation of star formation at kpc scales.
Tao Jing, Cheng Li
doaj   +1 more source