Results 61 to 70 of about 51,951 (281)

Mergers and galaxy evolution [PDF]

, 2007
Galaxy merging is the late time manifestation of the galaxy formation process and likely significantly effects z < 1 galaxies. A "maximum reasonable rate" model for merging finds a ,~ 2 mag K band increase in the luminosities of dwarf galaxies so that they contribute significantly to the faint counts, with spirals and ellipticals being far less ...
openaire   +1 more source

A Proof‐of‐Concept Assessment of a Novel Wearable Eyelid Muscle Device: A Pre‐Clinical Animal Cadaver Study for Eyelid Closure Restoration

Advanced Robotics Research, EarlyView.
This article introduces a soft wearable eyelid sling device incorporating a hydraulic soft artificial muscle (SAM) for achieving complete closure of an eyelid. The SAM is driven by a cam mechanism that provides a displacement profile closely matched with those of a healthy eyelid.
Patrick Pruscino, Phuoc Thien Phan, James Davies, Bibhu Sharma, Tianruo Guo, Chi Cong Nguyen, Nigel H. Lovell, Thanh Nho Do   +7 more
wiley   +1 more source

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

TIDAL DWARF GALAXIES AROUND A POST-MERGER GALAXY, NGC 4922 [PDF]

The Astronomical Journal, 2009
One possible channel for the formation of dwarf galaxies involves birth in the tidal tails of interacting galaxies. We report the detection of a bright UV tidal tail and several young tidal dwarf galaxy candidates in the post-merger galaxy NGC 4922 in the Coma cluster.
Sheen, Yun-Kyeong, Jeong, Hyunjin, Yi, Sukyoung K., Ferreras, Ignacio, Lotz, Jennifer M., Olsen, Knut A. G., Dickinson, Mark, Barnes, Sydney, Park, Jang-Hyun, Ree, Chang H., Madore, Barry F., Barlow, Tom A., Conrow, Tim, Foster, Karl, Friendman, Peter G., Lee, Young-Wook, Martin, D. Christopher, Morrissey, Patrick, Neff, Susan G., Schiminovich, David, Seibert, Mark, Small, Todd, Wyder, Ted K.   +22 more
openaire   +3 more sources

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

Galaxy Mergers Classification Using CNNs Trained on Sérsic Models, Residuals, and Raw Images

The Astrophysical Journal
Galaxy mergers are crucial for understanding galaxy evolution, and with large upcoming datasets, automated methods, such as convolutional neural networks (CNNs), are essential for efficient detection.
D. M. Chudy, W. J. Pearson, L. E. Suelves, B. Margalef-Bentabol, A. Pollo, L. Wang, V. Rodriguez-Gomez, A. La Marca   +7 more
doaj   +1 more source

Extragalactic Magnetism with SOFIA (SALSA Legacy Program): The Magnetic Fields in the Multiphase Interstellar Medium of the Antennae Galaxies

The Astrophysical Journal Letters, 2022
Mergers are thought to be a fundamental channel for galaxy growth, perturbing the gas dynamics and the magnetic fields ( B -fields) in the interstellar medium (ISM).
Enrique Lopez-Rodriguez, Alejandro S. Borlaff, Rainer Beck, William T. Reach, Sui Ann Mao, Evangelia Ntormousi, Konstantinos Tassis, Sergio Martin-Alvarez, Susan E. Clark, Daniel A. Dale, Ignacio del Moral-Castro   +10 more
doaj   +1 more source

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

Counting Black Holes: The Cosmic Stellar Remnant Population and Implications for LIGO

, 2017
We present an empirical approach for interpreting gravitational wave signals of binary black hole mergers under the assumption that the underlying black hole population is sourced by remnants of stellar evolution.
Bullock, James S., Elbert, Oliver D., Kaplinghat, Manoj   +2 more
core   +1 more source

Discovery of ram-pressure stripped gas around an elliptical galaxy in Abell 2670 [PDF]

, 2017
Studies of cluster galaxies are increasingly finding galaxies with spectacular one-sided tails of gas and young stars, suggestive of intense ram-pressure stripping. These so-called "jellyfish" galaxies typically have late-type morphology.
Candlish, Graeme, Demarco, Ricardo, Duc, Pierre-Alain, Jaffe, Yara, Kim, Minjin, Nantais, Julie, Sheen, Yun-Kyeong, Smith, Rory, Treister, Ezequiel, Yi, Sukyoung K.   +9 more
core   +2 more sources