Results 51 to 60 of about 4,739,381 (313)

The green valley is a red herring: Galaxy Zoo reveals two evolutionary pathways towards quenching of star formation in early-and late-type galaxies [PDF]

open access: yes, 2014
We use SDSS+GALEX+Galaxy Zoo data to study the quenching of star formation in low-redshift galaxies. We show that the green valley between the blue cloud of star-forming galaxies and the red sequence of quiescent galaxies in the colour-mass diagram is ...
K. Schawinski   +15 more
semanticscholar   +1 more source

Breaking the hierarchy of galaxy formation [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2006
11 pages, 8 colour figures. Accepted for publication in MNRAS. Galaxy catalogues are available for down load from http://www.icc.dur.ac.uk/
Bower, R. G.   +7 more
openaire   +5 more sources

Playing Hard with Si: Challenges and Opportunities for New Materials in Radiation Therapy Dosimetry

open access: yesAdvanced Materials, EarlyView.
Silicon has been a cornerstone material of radiation therapy dosimetry for many decades, providing somewhat unchallenged performance. However, there are caveats to its use, requiring complex designs and, often, correction factors to provide accurate measurements.
James Cayley   +9 more
wiley   +1 more source

Galactic star formation and accretion histories from matching galaxies to dark matter haloes [PDF]

open access: yes, 2012
We present a new statistical method to determine the relationship between the stellar masses of galaxies and the masses of their host dark matter haloes over the entire cosmic history from z 4 to the present.
B. Moster, T. Naab, S. White
semanticscholar   +1 more source

Quasars and galaxy formation [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2001
Quasars are widely believed to be powered by accretion onto supermassive black holes and there is now considerable evidence for a link between mergers, quasars and the formation of spheroids. Cattaneo, Haehnelt & Rees (1999) have demonstrated that a very simple model in which supermassive black holes form and accrete most of their mass in mergers ...
openaire   +3 more sources

Thermochromic Gires‐Tournois Resonators with Tellurium for Battery Thermal Runaway Warning

open access: yesAdvanced Materials, EarlyView.
A thermochromic Gires‐Tournois (GT) resonator with a thin tellurium layer enables rapid, reversible, and untethered detection of battery surface temperature <80 °C. Exploiting tellurium's refractive index change driven by a thermally induced phase transition between solid and quasi‐liquid states, the GT resonator visualizes heat propagation, providing ...
Hyun Min Kim   +7 more
wiley   +1 more source

The hierarchical formation of the brightest cluster galaxies [PDF]

open access: yes, 2006
We use semi-analytic techniques to study the formation and evolution of brightest cluster galaxies (BCGs). We show the extreme hierarchical nature of these objects and discuss the limitations of simple ways to capture their evolution.
G. Lucia, J. Blaizot
semanticscholar   +1 more source

The TET3/GATA6 Axis Drives Lipid Metabolism and Therapeutic Vulnerabilities in Pancreatic Ductal Adenocarcinoma

open access: yesAdvanced Science, EarlyView.
The DNA demethylase TET3 drives lipid metabolic reprogramming in pancreatic ductal adenocarcinoma via a non‐catalytic mechanism. TET3 recruits histone deacetylases to repress GATA6, sustaining lipogenic enzyme expression and ferroptosis resistance.
Shuai Liu   +8 more
wiley   +1 more source

Multiwavelength Study of Massive Galaxies at z~2. I. Star Formation and Galaxy Growth [PDF]

open access: yes, 2007
Examining a sample of massive galaxies at 1.4 < z < 2.5 with KVega < 22 from GOODS, we compare photometry from Spitzer at mid- and far-IR to submillimeter, radio, and rest-frame UV wavelengths, to test the agreement between different tracers of star ...
E. Daddi   +14 more
semanticscholar   +1 more source

The Formation of the First Galaxies

open access: yesarXiv: Cosmology and Nongalactic Astrophysics, 2009
Ph. D. Thesis, University of Heidelberg, 2009, 212 pages, 55 figures, pdf available at http://www.ita.uni-heidelberg.de/~tgreif/thesis.shtml?lang ...
openaire   +4 more sources

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