Results 51 to 60 of about 149,951 (272)

The Evolution of the Mass-Metallicity Relation at 0.20 < z < 0.35 [PDF]

Journal of Astronomy and Space Sciences, 2013
We present a spectroscopic study of 343 blue compact galaxies (BCGs) at 0.20 < z < 0.35 from the Sloan Digital Sky Survey (SDSS) DR7 data. We derive gas phase oxygen abundance using the empirical and direct method.
Jiwon Chung, Soo-Chang Rey, Eon-Chang Sung   +2 more
doaj   +1 more source

A Simple Technique for Predicting High-Redshift Galaxy Evolution

, 2015
We show that the ratio of galaxies' specific star formation rates (SSFRs) to their host halos' specific mass accretion rates (SMARs) strongly constrains how the galaxies' stellar masses, specific star formation rates, and host halo masses evolve over ...
Behroozi, Peter S., Silk, Joseph
core   +3 more sources

A Bifunctional T3SS‐Effector Simultaneously Cleaves Host MAP Kinase and Inhibits PPM1A Phosphatase

Advanced Science, EarlyView.
Pathogenic bacteria exploit the metalloprotease effector NleD to subvert host defenses. Structural, biochemical, and infection analyses reveal a bifunctional mechanism by which NleD binds and inhibits the host phosphatase PPM1A while preserving its proteolytic activity against MAPKs.
Yaakov Socol, Lihi Gur‐Arie, Netanel Tzarum, Tamara Wellins, Naama Katsowich, Miriam Ravins, Michal Bejerano‐Sagie, Klil Cohen, Oded Livnah, Joshua N. Adkins, Ernesto Nakayasu, Alexei Savchenko, Yeu Khai Choong, Nikhil Kumar Tulsian, Saturo Machida, Sigal Ben‐Yehuda, Yael Litvak, J. Sivaraman, Ilan Rosenshine   +18 more
wiley   +1 more source

Morphological Demographics of Galaxies at z ∼ 10–16: Log-normal Size Distribution and Exponential Profiles Consistent with the Disk Formation Scenario

The Astrophysical Journal
We homogeneously investigate the morphological properties of 169 galaxies at z  ∼ 10–16 with deep JWST NIRCam images employing our established techniques of GALFIT modeling and uncertainty evaluation (systematics+statistics).
Yoshiaki Ono, Masami Ouchi, Yuichi Harikane, Hidenobu Yajima, Kimihiko Nakajima, Seiji Fujimoto, Minami Nakane, Yi Xu   +7 more
doaj   +1 more source

Star Formation Quenching in Quasar Host Galaxies

Frontiers in Astronomy and Space Sciences, 2017
Galaxy evolution is likely to be shaped by negative feedback from active galactic nuclei (AGN). In the whole range of redshifts and luminosities studied so far, galaxies hosting an AGN frequently show fast and extended outflows consisting in both ionized
Stefano Carniani, Stefano Carniani
doaj   +1 more source

Luminosity function of binary X-ray sources calculated using the Scenario Machine

, 2007
Using the ``Scenario Machine'' we have carried out a population synthesis of X-ray binaries for the purpose of modelling of X-ray luminosity functions (XLFs) in different types of galaxies: star burst, spiral, and elliptical. This computer code allows to
A. Georgakakis, A. I. Bogomazov, A. I. Bogomazov, A. K. H. Kong, A. M. Cherepashchuk, A. R. King, A. Zezas, A. Zezas, D.-W. Kim, E. P. J. Heuvel van den, H.-J. Grimm, H.-J. Grimm, I. Georgantopoulos, J. Bever Van, J. E. Grindlay, K. A. Postnov, K. Belczynski, M. Gilfanov, M. P. Muno, N. V. Raguzova, Q. Z. Liu, Q. Z. Liu, S. A. Rappaport, S. B. Popov, S. V. Karpov, V. M. Lipunov, V. M. Lipunov, V. M. Lipunov, V. M. Lipunov, V. M. Lipunov, V. M. Lipunov, V. M. Lipunov, V. M. Lipunov   +32 more
core   +1 more source

Solid Harmonic Wavelet Bispectrum for Image Analysis

Advanced Science, EarlyView.
The Solid Harmonic Wavelet Bispectrum (SHWB), a rotation‐ and translation‐invariant descriptor that captures higher‐order (phase) correlations in signals, is introduced. Combining wavelet scattering, bispectral analysis, and group theory, SHWB achieves interpretable, data‐efficient representations and demonstrates competitive performance across texture,
Alex Brown, Mathilda Avirett‐Mackenzie, Carolin Villforth, Georgios Exarchakis   +3 more
wiley   +1 more source

Boosted Tidal Disruption by Massive Black Hole Binaries During Galaxy Mergers FROM The View of N-Body Simulation [PDF]

, 2016
Supermassive black hole binaries (SMBHBs) are productions of the hierarchical galaxy formation model. There are many close connections between central SMBH and its host galaxy because the former plays very important roles on the formation and evolution ...
Berczik, Peter, Li, Shuo, Liu, F. K., Spurzem, Rainer   +3 more
core   +3 more sources

Liquid Metal Nanotransformers for Drug‐Resistant Pan‐Cancer Therapy in Patient‐Derived Organoids

Advanced Science, EarlyView.
Pan‐cancer therapies are severely limited in drug‐resistance patients due to genetic mutations and other factors, resulting in poor therapeutic outcomes and constrained clinical benefit. Liquid metal nanotransformers, a new class of shape‐transformable nanomaterials capable of dramatic morphological changes, offer a promising physical strategy to ...
Xiaojie Yuan, Xuelin Wang, Zhongyao Chen, Shuo Wang, Weining Gao, Ziyi Chen, Runyang Li, Cheng Hao, Lei Zhang, Qiongqiong Zhang, Ke Zhang, Mei Yu, Qian Liu, Jingxuan Wang, Huiping Li, Simpkins Fiona, Jing Liu, Qiang Liu, Peng Liu, Yawei Hu   +19 more
wiley   +1 more source

Fine-grained Morphological Study of Galaxy Pairs: A Human-in-the-loop Self-supervised Classification Framework

The Astronomical Journal
Galaxy pairs, as key probes for studying galaxy formation and evolution, provide a unique window for observing galaxy interactions, including the associated exchange of material and related galaxy formation activities.
Yating Li, Jiang-hui Cai, Hai-feng Yang, Jie Wang, Lihua Hu   +4 more
doaj   +1 more source