Results 71 to 80 of about 48,775 (298)

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

Substituent‐Based Modulation of Self‐Assembly and Immunogenicity of Amphipathic Peptides

Advanced Science, EarlyView.
This study systematically investigates how positional and subtle changes, such as substituents on the phenyl ring attached to short amphipathic peptides, influence their self‐assembly, fibril morphology, and immunogenic responses. ABSTRACT Self‐assembled peptide‐based biomaterials provide versatile platforms for biomedical uses, featuring customizable ...
Anirban Das, Ushasi Pramanik, Elise M. Brown, Chih‐Yun Liu, Huan Gong, Jonathan Fascetti, Mark Gibson, Samuel Stealey, Silviya P. Zustiak, Cory Berkland, Piyoosh Sharma, Meredith E. Jackrel, Mark A. White, Jai S. Rudra   +13 more
wiley   +1 more source

Galaxy and Mass Assembly (GAMA): merging galaxies and their properties [PDF]

, 2014
We derive the close pair fractions and volume merger rates for galaxies in the Galaxy and Mass Assembly (GAMA) survey with −23 < Mr < −17 (ΩM = 0.27, ΩΛ = 0.73, H0 = 100 km s−1 Mpc−1) at 0.01 < z < 0.22 (look-back time of
Aaron S. G. Robotham, Abraham, Ahn, Andrew M. Hopkins, Baldry, Baldry, Baldwin, Baugh, Bell, Bergvall, Berrier, Bessiere, Blumenthal, Boylan-Kolchin, Bridge, Bruzual, Bundy, Casteels, Cattaneo, Chou, Cisternas, Cluver, Colless, Comerford, Conselice, Cotini, Darg, Darg, De Propris, De Propris, De Propris, De Propris, de Ravel, Deng, Deng, Driver, Driver, Ellison, Ellison, Faber, Fritz, Genel, Guo, Haas, Holmberg, Hopkins, Hopkins, Huang, Ivan K. Baldry, Jian, Jiang, Jiang, Jogee, Jon Loveday, Joss Bland-Hawthorn, Kampczyk, Kartaltepe, Kauffmann, Kaviraj, Kelvin, Kitzbichler, Lee Kelvin, Li, Lin, Lin, Lin, Liske, Lopez-Sanjuan, Lopez-Sanjuan, Lopez-Sanjuan, Lotz, Lotz, Lotz, Maller, Masjedi, Masjedi, McGee, McLure, Mihos, Mo, Moore, Moreno, Murali, Norberg, Parry, Patton, Patton, Patton, Patton, Patton, Peng, Perret, Robaina, Robaina, Roberto De Propris, Robotham, Robotham, Ryan, Sarah Brough, Simon P. Driver, Skelton, Springel, Steve Phillipps, Stewart, Strateva, Taylor, Teng, Thomas, Toomre, Toomre, Toribio, Tremonti, Trinh, van den Bosch, van Dokkum, Wen, Wild, Williams, Xu, York, Zwicky, Zwicky   +121 more
core   +2 more sources

Forming Young Bulges within Existing Disks: Statistical Evidence for External Drivers

, 2003
Contrary to traditional models of galaxy formation, recent observations suggest that some bulges form within preexisting disk galaxies. Such late-epoch bulge formation within disks seems to be linked to disk gas inflow and central star formation, caused ...
Abraham R. G., Andredakis Y. C., Becker R. H., Elizabeth J. Barton, Ellis R. S., Friedli D., Kauffmann G., Rolf A. Jansen, Schwarzkopf U., Sheila J. Kannappan, Shioya Y., Tully R. B.   +11 more
core   +1 more source

Galaxy mergers can initiate quenching by unlocking an AGN-driven transformation of the baryon cycle [PDF]

, 2022
J. Davies, Andrew Pontzen, Robert A. Crain   +2 more
openalex   +1 more source

Multitarget Recognition of Flower Images Based on Lightweight Deep Neural Network and Transfer Learning

Advanced Intelligent Systems, EarlyView.
This article proposes a lightweight YOLOv4‐based detection model using MobileNetV3 or CSPDarknet53_tiny, achieving 30+ FPS and higher mAP. It also presents a ShuffleNet‐based classification model with transfer learning and GAN‐augmented images, improving generalization and accuracy.
Qingyang Liu, Yanrong Hu, Hongjiu Liu
wiley   +1 more source

Signatures of Massive Black Hole Merger Host Galaxies from Cosmological Simulations. I. Unique Galaxy Morphologies in Imaging

The Astrophysical Journal
Low-frequency gravitational-wave experiments such as the Laser Interferometer Space Antenna and pulsar timing arrays are expected to detect individual massive black hole (MBH) binaries and mergers.
Jaeden Bardati, John J. Ruan, Daryl Haggard, Michael Tremmel   +3 more
doaj   +1 more source

Galaxy growth in the concordance $\Lambda$CDM cosmology

, 2007
We use galaxy and dark halo data from the public database for the Millennium Simulation to study the growth of galaxies in the De Lucia et al. (2006) model for galaxy formation.
Guo, Qi, White, Simon D. M.
core   +2 more sources

Evolutionary paths among different red galaxy types at 0.3 < z < 1.5 and the late buildup of massive E-S0's through major mergers [PDF]

, 2012
Some recent observations seem to disagree with hierarchical theories of galaxy formation about the role played by major mergers in the late buildup of massive E-S0's.
Abreu, David, Balcells, Marc, Barro, Guillermo, Cristobal-Hornillos, David, Dominguez-Palmero, Lilian, Eliche-Moral, M. Carmen, Erwin, Peter, Gallego, Jesus, Guzman, Rafael, Hempel, Angela, Lopez-Sanjuan, Carlos, Perez-Gonzalez, Pablo G., Prieto, Mercedes, Zamorano, Jaime   +13 more
core   +3 more sources