Results 61 to 70 of about 149,951 (272)

Stochastic 2-D Models of Galaxy Disk Evolution. The Galaxy M33

Open Astronomy, 2014
We have developed a fast numerical 2-D model of galaxy disk evolution (resolved along the galaxy radius and azimuth) by adopting a scheme of parameterized stochastic self-propagating star formation.
Mineikis T., Vansevičius V.
doaj   +1 more source

A Circuit of Mechanically Regulated Transcription Factors Balances Regenerative and Fibrotic Memory of Mesenchymal Stromal Cells

Advanced Science, EarlyView.
Producing MSCs on rigid culture substrates induces a scar‐making phenotype, jeapordizing therapeutic success. ‘Tissue‐soft’ surfaces prevent MSC fibrogenesis and preserve regenerative traits. An epigenetic network, driven by HOXA11 and SALL1, maintains ‘soft memory’ by keeping chromatin open in relaxed MSCs, promoting anti‐fibrotic programs.
Fereshteh Sadat Younesi, Andrew E. Miller, Li Diao, Xinying Guo, Natalie Andonian, Elham Karimizadeh, Thomas H. Barker, Boris Hinz   +7 more
wiley   +1 more source

The History of Galaxy Mergers in IllustrisTNG

Universe
The process of galaxy evolution over cosmic time is not yet fully understood, since there is a debate on the impact of galaxy collisions on the star formation and metallicity.
Bendeguz Koncz, Istvan Horvath, András Péter Joó, Andreas Burkert, L. Viktor Tóth   +4 more
doaj   +1 more source

The star-formation history of the Milky Way Galaxy

, 2009
The star-formation histories of the main stellar components of the Milky Way constrain critical aspects of galaxy formation and evolution. I discuss recent determinations of such histories, together with their interpretation in terms of theories of disk ...
Bensby, Bensby, Bensby, Cignoni, Famaey, François, Maiolino, Nordström, Rocha-Pinto, Rosemary F. G. Wyse, Wyse, Wyse   +11 more
core   +1 more source

The Role of Dust in the Early Universe I : Protogalaxy Evolution [PDF]

, 2011
We develop one-zone galaxy formation models in the early Universe, taking into account dust formation and evolution by supernova (SN) explosions. Especially we focus on the time evolution of dust size distribution, because ${\rm H}_{2}$ formation on the ...
Asao Habe, Bigiel, Bromm, Cazaux, Cherchneff, Cox, Daisuke Yamasawa, Draine, Dwek, Dwek, Gallerani, Galli, Glover, Gnedin, Granato, Greif, Heger, Heger, Hideyuki Umeda, Hiroyuki Hirashita, Inoue, Jappsen, Jappsen, Jappsen, Joggerst, Joggerst, Ken'ichi Nomoto, Kennicutt, Kitayama, Kitayama, Kitayama, Kozasa, Krumholz, Krügel, Li, Machacek, Mackey, Nath, Nozawa, Nozawa, Nozawa, Nozawa, Nozawa, O'Shea, Omukai, Omukai, Omukai, Robertson, Sibthorpe, Silva, Silvia, Smith, Spergel, Susa, Susa, Takashi Kozasa, Takaya Nozawa, Tegmark, Umeda, Whalen, Whalen, Wise, Wise, Wise, Wise, Wolfe, Yoshida   +66 more
core   +2 more sources

An ATP‐Mediated Antibiotic β‐Peptide Nanofiber That Kills Multidrug‐Resistant Bacteria via a Multistage Mechanism

Advanced Science, EarlyView.
The 3K‐AP system forms infinite supramolecular fibrils that undergo controlled degradation into shorter fragments upon enzymatic hydrolysis. Multitechnique imaging reveals a stepwise bacteriolytic mechanism involving bacterial entrapment, disassembly into lethal constructs, and associated extracellular vesicle release, highlighting the dynamic ...
Sohini Chakraborty, Kamal el Battioui, Dániel Molnár, Bálint Jezsó, Lejla Daruka, Tasvilla Sonallya, Tünde Juhász, Rita Hirmondó, Imola Cs. Szigyártó, Loránd Románszki, Natália Tőkési, Daniel Pinkas, Eszter Házy, Olivér Pavela, Andrea Bodor, Zoltán Varga, István Mándity, Mihály Kovács, Csaba Pál, Kata Horváti, Judit Tóth, Tamás Beke‐Somfai   +21 more
wiley   +1 more source

Evolution of the Physical Properties of the Most Massive Galaxies in Clusters and Their Protohalos

The Astrophysical Journal
We investigated the evolution of the physical properties of the brightest galaxies in clusters and their protohalos from z = 4 to z = 0. Galaxy clusters and groups are identified using a halo-based group finder applied to the COSMOS2020 galaxy catalog ...
Qingyang Li, Xiaohu Yang, Antonios Katsianis, Paola Popesso, Ilaria Marini, Y. Sophia Dai, Chengze Liu, Yipeng Jing, Jia-Sheng Huang, Marcin Sawicki   +9 more
doaj   +1 more source

Targeting cluster galaxies for the 4MOST CHANCES Low-z sub-survey with photometric redshifts

Astronomy & Astrophysics
Context. The evolution of galaxies is shaped by both internal processes and their external environments. Galaxy clusters and their surroundings provide ideal laboratories to study these effects, particularly with respect to mechanisms such as quenching ...
Méndez-Hernández Hugo, Lima-Dias Ciria, Monachesi Antonela, Jaffé Yara L., Haines Christopher P., Teixeira Gabriel S. M., Lösch Elismar, Baier-Soto Raúl, Lima Erik V. R., Amrutha B. M., Bom C. R., D’Ago Giuseppe, Demarco Ricardo, Finoguenov Alexis, Haack Rodrigo F., Lopes Amanda R., de Oliveira C. Mendes, Merluzzi Paola, Piraino-Cerda Franco, Smith Castelli Analía V., Sifón Cristobal, Sodré Laerte, Tejos Nicolás, Torres-Flores Sergio, Argudo-Fernández Maria, Crossett Jacob P., Ibar E., Kuchner Ulrike, Lacerna Ivan, Lopes-Silva Vitor H., Lopez Sebastián, McGee Sean, Morelli Lorenzo, Nantais Julie, Olivares V. Patricio, Pallero Diego, Poggianti Bianca M., Pompei Emanuela, Sampaio V. M., Vulcani Benedetta, Zenteno Alfredo, Almeida-Fernandes F., Bilicki Maciej, Carvalho M. S., Cheng Cheng, Figueiredo A. L.,, Gutiérrez-Soto L. A., Herpich F. R., Kanaan A., Lacerda E A. D., Nakazono L., Oliveira Schwarz G. B., Ribeiro T., Roukema Boudewijn F., Sartori Marília J., Santos-Silva Thaís, Schoenell W.   +56 more
doaj   +1 more source

Resummed Perturbation Theory of Galaxy Clustering

, 2012
The relationship between observed tracers such as galaxies and the underlying dark matter distribution is crucial in extracting cosmological information.
Szalay, Alex, Wang, Xin
core   +1 more source

On the Determination of Star Formation Rates in Evolving Galaxy Populations [PDF]

, 2000
The redshift dependence of the luminosity density in certain wavebands (e.g. UV and H-alpha) can be used to infer the history of star formation in the populations of galaxies producing this luminosity.
B. Mobasher, Bressan A., Fioc M., J. Afonso, L. Cram, Madau P., Pozzetti L., Rowan-Robinson M.   +7 more
core   +2 more sources