Results 61 to 70 of about 262,185 (285)

How galactic environment regulates star formation [PDF]

, 2016
In a new simple model I reconcile two contradictory views on the factors that determine the rate at which molecular clouds form stars-internal structure versus external, environmental influences-providing a unified picture for the regulation of star ...
van der Wel, Sharon Meidt
core   +2 more sources

Atomic Size Misfit for Electrocatalytic Small Molecule Activation

Advanced Functional Materials, EarlyView.
This review explores the application and mechanisms of atomic size misfit in catalysis for small molecule activation, focusing on how structural defects and electronic properties can effectively lower the energy barriers of chemical bonds in molecules like H2O, CO2, and N2.
Ping Hong, Changfan Xu, Huaping Zhao, Yong Lei   +3 more
wiley   +1 more source

An S-shaped Filament Formed Due to Cloud–Cloud Collision in Molecular Cloud G178.28-00.61

The Astrophysical Journal Supplement Series
We present compelling observational evidence supporting G178.28-00.61 as an early-stage candidate for cloud–cloud collision (CCC), with indications of the formation of an S-shaped filament, evenly separated dense cores, and young star clusters.
Tianwei Zhang, Tie Liu, Yuefang Wu, Linjing Feng, Sihan Jiao, Derek Ward-Thompson, Alessio Traficante, Helen J Fraser, James Di Francesco, Doug Johnstone, Paul F. Goldsmith, Yasuo Doi, Xunchuan Liu, Chang Won Lee, Fengwei Xu, Ram K. Yadav, Glenn J White, Leonardo Bronfman, Yi-Jehng Kuan, Kee-Tae Kim, Donghui Quan   +20 more
doaj   +1 more source

Why are most molecular clouds not gravitationally bound? [PDF]

, 2011
The most recent observational evidence seems to indicate that giant molecular clouds are predominantly gravitationally unbound objects. In this paper we show that this is a natural consequence of a scenario in which cloud-cloud collisions and stellar ...
A. Burkert, Allen, Ballesteros-Paredes, Ballesteros-Paredes, Ballesteros-Paredes, Basu, Bate, Benz, Bertoldi, Binney, Bolatto, Bonnell, Bonnell, C. L. Dobbs, Caldwell, Clark, Clark, Cox, Dib, Dobbs, Dobbs, Dobbs, Dobbs, Dobbs, Elmegreen, Elmegreen, Glover, Hartmann, Heitsch, Heyer, Heyer, J. E. Pringle, Kawamura, Kennicutt, Klessen, Klessen, Koda, Krumholz, Krumholz, Leisawitz, Mac Low, Monaghan, Mouschovias, Price, Price, Price, Pringle, Rosolowsky, Schneider, Shetty, Shetty, Shu, Shu, Solomon, Tasker, Vázquez-Semadeni, Wolfire, Zuckerman   +57 more
core   +1 more source

Enhancing CoFe Catalysts with V2CTX MXene‐Derived Materials for Anion Exchange Membrane Electrolyzers

Advanced Functional Materials, EarlyView.
MXene dervied CoFe composites show increased initial Oxygen Evolution Reaction (OER) activity compared to the pure CoFe and MXene in an Anion Exchange Membrane device. Vanadium vacancies in the MXene plays a role in increased OER activity and hinders Fe leaching in the AEM device over using the pure V2C MXene as a support material for the CoFe ...
Can Kaplan, Karuppasamy Dharmaraj, Thorsten Schultz, Leiqiang Qin, Ningjun Chen, Danielle A. Douglas‐Henry, Bastian Schmiedecke, Merve Buldu‐Akturk, Axel Zuber, Iris Dorbandt, Maximilian Reinhardt, Yael Rodriguez‐Ayllon, Yan Lu, Valeria Nicolosi, Norbert Koch, Johanna Rosen, Michelle P. Browne   +16 more
wiley   +1 more source

The Molecular Cloud Life Cycle. II. Formation and Destruction of Molecular Clouds Diagnosed via H2 Fluorescent Emission

The Astrophysical Journal
Molecular hydrogen (H _2 ) formation and dissociation are key processes that drive the gas life cycle in galaxies. Using the SImulating the LifeCycle of Molecular Clouds zoom-in simulation suite, we explore the utility of future observations of H _2 ...
Blakesley Burkhart, Shmuel Bialy, Daniel Seifried, Stefanie Walch, Erika Hamden, Thomas J. Haworth, Keri Hoadley, Shuo Kong, Madisen Johnson, Sarah Jeffreson, Mark R. Krumholz, Min-Young Lee, Amiel Sternberg, Neal J. Turner   +13 more
doaj   +1 more source

Fitting Probability Distribution Functions in Turbulent Star-Forming Molecular Clouds [PDF]

, 2023
Avery Kiihne, Sabrina M. Appel, Blakesley Burkhart, Vadim A. Semenov, Christoph Federrath   +4 more
openalex   +1 more source

Excited State Modulation in Carbene‐Metal‐Amides to Design Fast and Bright Blue Delayed Fluorescence

Advanced Functional Materials, EarlyView.
Gold‐centered carbene‐metal amide (CMA) materials with carbonyl‐group substitution on the amide donor ligand. Molecular design ensures that the charge transfer (CT) state is lower in energy than the locally excited (3LE) states. The energy difference between CT and LE states controls the rate of the delayed fluorescence.
Charlotte Riley, Nguyen Le Phuoc, Mikko Linnolahti, Alexander S. Romanov   +3 more
wiley   +1 more source

Repeated output coupling of ultracold Feshbach molecules from a Cs BEC

New Journal of Physics, 2014
We investigate magnetoassociation of ultracold Feshbach molecules from a Bose-Einstein condensate of Cs atoms and explore the spectrum of weakly bound molecular states close to the atomic threshold.
M P Köppinger, P D Gregory, D L Jenkin, D J McCarron, A L Marchant, S L Cornish   +5 more
doaj   +1 more source

Global Collapses and Expansions in Star-Forming Clouds

, 2009
Spectral molecular line profile observations of star-forming molecular clouds sometimes show distinct red asymmetric double-peaked molecular line profiles with weaker blue peaks and stronger red peaks.
Adams, Adelson, Aguti, Arons, Belloche, Bernes, Bian, Carolan, Di Francesco, Evans, Fiege, Fiege, Fuller, Gao, Hammersley, Harvey, Hennebelle, Hogerheijde, Hu, Jørgensen, Kenyon, Keto, Lada, Larson, Lee, Lou, Lou, Lou, Lou, MacLow, Mardones, Matthews, Matzner, Matzner, McKee, Moraghan, Moriarty-Schieven, Myers, Myers, Nakano, Ossenkopf, Ostriker, Park, Park, Park, Rawlings, Redman, Redman, Saito, Schöier, Shang, Shen, Shirley, Shreider, Shu, Shu, Shu, Shu, Su, Tafalla, Tafalla, Tafalla, Thompson, Tsamis, van der Tak, Van Zadelhoff, Velusamy, Wang, Ward-Thompson, Wilner, Wu, Yang Gao, Yu, Yu, Yu-Qing Lou, Zhou, Zhou, Zweibel   +77 more
core   +1 more source