Results 51 to 60 of about 213,762 (290)

Lensing Properties of Scale‐free Galaxies [PDF]

The Astrophysical Journal, 2001
The multiple images of lensed quasars provide evidence on the mass distribution of the lensing galaxy. The lensing invariants are constructed from the positions of the images, their parities and their fluxes. They depend only on the structure of the lensing potential.
Hunter, C., Evans, N. W.
openaire   +2 more sources

Microfluidic Engineering of Chitosan‐Coated Nanoemulsions for Controlled Release and Stability in Space Pharmaceutics

Advanced Materials Technologies, EarlyView.
Microfluidic engineering enables the fabrication of chitosan‐coated, melatonin‐loaded nanoemulsions with controlled release and enhanced physicochemical stability for space pharmaceutics. Interfacial biopolymer coating modulates droplet behavior under accelerated thermal stress and simulated microgravity.
Modupe Adebowale, Nguyen Van Duc Long, Philip M Williams, Volker Hessel   +3 more
wiley   +1 more source

Rotational Curves of the Milky Way Galaxy and Andromeda Galaxy in Light of Vacuum Polarization around Eicheon

Universe, 2023
Eicheon properties are discussed. It is shown that the eicheon surface allows setting a boundary condition for the vacuum polarization and obtaining a solution describing the dark matter tail in the Milky Way Galaxy. That is, the dark matter in the Milky
Sergey L. Cherkas, Vladimir L. Kalashnikov   +1 more
doaj   +1 more source

Combined Effects of Galaxy Interactions and Large-Scale Environment on Galaxy Properties

, 2008
We inspect the coupled dependence of physical parameters of the SDSS galaxies on the small-scale (distance to and morphology of the nearest neighbor galaxy) and the large-scale (background density smoothed over 20 nearby galaxies) environments.
Adelman-McCarthy, Allam, Balogh, Barnes, Barton, Barton, Barton, Bell, Binney, Blanton, Blanton, Blanton, Blanton, Brighenti, Brown, Brown, Changbom Park, Choi, Conroy, Coziol, D'Onghia, de Propris, Ellison, Evrard, Geller, Gomez, Gott, Graham, Henriksen, Hernandez-Toledo, Hogg, Jeltema, Kacprzak, Kim, Li, Maller, Matsushita, Mendes de Oliveira, Naab, Park, Park, Park, Park, Patton, Patton, Poggianti, Prada, Quintero, Robertson, Schlegel, Smith, Tanaka, Tegmark, Tran, Tully, Ulmer, van den Bergh, van der Wel, van Dokkum, Woods, Woods, Yang, York, Yun-Young Choi   +63 more
core   +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

Observational Evidence for an Age Dependence of Halo Bias

, 2006
We study the dependence of the cross-correlation between galaxies and galaxy groups on group properties. Confirming previous results, we find that the correlation strength is stronger for more massive groups, in good agreement with the expected mass ...
Frank C. van den Bosch, Gao L., H. J. Mo, Mo H. J., Weinmann S. M., Xiaohu Yang   +5 more
core   +2 more sources

THE PROPERTIES OF HIGH REDSHIFT GALAXIES

Revista Mexicana de Astronomía y Astrofísica, 2022
This work studies the connection between the first galaxies and their hosting dark matter halos in the early Universe when reionization is concluding. Our numerical models (already presented in an earlier study) trace the star formation history at z = 4 - 8, the galaxy stellar mass function, the stellar-to-halo mass distribution, and other high ...
openaire   +2 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

Insights into Galaxy Morphology and Star Formation: Unveiling Filamentary Structures around an Extreme Overdensity at z ∼ 1.5 Traced by [O ii] Emitters

The Astrophysical Journal Letters
We explore the morphological features and star formation activities of [O ii ] emitters in the COSMOS UltraDeep field at z ∼ 1.5 using JWST NIRCam data from the COSMOS-Web survey and Subaru Hyper Suprime-Cam.
Ronaldo Laishram, Tadayuki Kodama, Takahiro Morishita, Andreas Faisst, Yusei Koyama, Naoaki Yamamoto   +5 more
doaj   +1 more source

Host Galaxy Properties and Black Hole Mass of Swift J164449.3+573451 from Multi-Wavelength Long-Term Monitoring and HST Data

, 2015
We study the host galaxy properties of the tidal disruption object, Swift J164449.3+573451 using long-term optical to near-infrared (NIR) data. First, we decompose the galaxy surface brightness distribution and analyze the morphology of the host galaxy ...
Choi, Philip, Gehrels, Neil, Im, Myungshin, Jeon, Yiseul, Lee, Seong-Kook, Pak, Soojong, Sakamoto, Takanori, Urata, Yuji, Yoon, Yongmin   +8 more
core   +1 more source