Results 71 to 80 of about 30,211 (248)

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

First Look at z > 1 Bars in the Rest-frame Near-infrared with JWST Early CEERS Imaging

The Astrophysical Journal Letters, 2023
Stellar bars are key drivers of secular evolution in galaxies and can be effectively studied using rest-frame near-infrared (NIR) images, which trace the underlying stellar mass and are less impacted by dust and star formation than rest-frame UV or ...
Yuchen Guo, Shardha Jogee, Steven L. Finkelstein, Zilei Chen, Eden Wise, Micaela B. Bagley, Guillermo Barro, Stijn Wuyts, Dale D. Kocevski, Jeyhan S. Kartaltepe, Elizabeth J. McGrath, Henry C. Ferguson, Bahram Mobasher, Mauro Giavalisco, Ray A. Lucas, Jorge A. Zavala, Jennifer M. Lotz, Norman A. Grogin, Marc Huertas-Company, Jesús Vega-Ferrero, Nimish P. Hathi, Pablo Arrabal Haro, Mark Dickinson, Anton M. Koekemoer, Casey Papovich, Nor Pirzkal, L. Y. Aaron Yung, Bren E. Backhaus, Eric F. Bell, Antonello Calabrò, Nikko J. Cleri, Rosemary T. Coogan, M. C. Cooper, Luca Costantin, Darren Croton, Kelcey Davis, Avishai Dekel, Maximilien Franco, Jonathan P. Gardner, Benne W. Holwerda, Taylor A. Hutchison, Viraj Pandya, Pablo G. Pérez-González, Swara Ravindranath, Caitlin Rose, Jonathan R. Trump, Alexander de la Vega, Weichen Wang   +47 more
doaj   +1 more source

Inner Molecular Rings in Barred Galaxies: BIMA SONG CO Observations

, 2002
Although inner star-forming rings are common in optical images of barred spiral galaxies, observational evidence for the accompanying molecular gas has been scarce.
Buta R., Combes F., Kartik Sheth, Krause M., Michael W. Regan, Peter J, Schwarz M. P., Stuart N. Vogel, Teuben, , van der Kruit P.   +9 more
core   +1 more source

Hydrodynamical simulations of the barred spiral galaxy NGC 1097 [PDF]

Proceedings of the International Astronomical Union, 2012
AbstractNGC 1097 is a nearby barred spiral galaxy believed to be interacting with the elliptical galaxy NGC 1097A located to its northwest. It hosts a Seyfert 1 nucleus surrounded by a circumnuclear starburst ring. Two straight dust lanes connected to the ring extend almost continuously out to the bar.
Lin, Lien-Hsuan, Wang, Hsiang-Hsu, Hsieh, Pei-Ying, Taam, Ronald E., Yang, Chao-Chin, Yen, David C. C.   +5 more
openaire   +3 more sources

Discovery and Initial Investigation of a New Low Surface Brightness Planetary Nebula Candidate at High Galactic Latitude

Astronomische Nachrichten, EarlyView.
ABSTRACT Planetary nebulae represent a late evolutionary phase of low‐ to intermediate‐mass stars. In this article, we present the serendipitous discovery of a previously unknown, faint potential Galactic planetary nebula (PN) in the constellation Camelopardalis, identified during a survey‐inspection, aiming at the detection of dwarf companions of the ...
W. E. Celnik, P. Köchling, S. Kotov, J. Kozok, Y. Galata, L. Magrini, A. Moiseev, M. Nischang, C. Reese, P. Remmel, P. Riepe, T. Zilch, K. Werner   +12 more
wiley   +1 more source

Stellar dynamics around transient co-rotating spiral arms

EPJ Web of Conferences, 2012
Spiral density wave theory attempts to describe the spiral pattern in spiral galaxies in terms of a long-lived wave structure with a constant pattern speed in order to avoid the winding dilemma.
Cropper M., Grand R.J.J., Kawata D.
doaj   +1 more source

PHANGS–JWST First Results: Massive Young Star Clusters and New Insights from JWST Observations of NGC 1365

The Astrophysical Journal Letters, 2023
A primary new capability of JWST is the ability to penetrate the dust in star-forming galaxies to identify and study the properties of young star clusters that remain embedded in dust and gas. In this Letter we combine new infrared images taken with JWST
Bradley C. Whitmore, Rupali Chandar, M. Jimena Rodríguez, Janice C. Lee, Eric Emsellem, Matthew Floyd, Hwihyun Kim, J. M. Diederik Kruijssen, Angus Mok, Mattia C. Sormani, Médéric Boquien, Daniel A. Dale, Christopher M. Faesi, Kiana F. Henny, Stephen Hannon, David A. Thilker, Richard L. White, Ashley T. Barnes, F. Bigiel, Mélanie Chevance, Jonathan D. Henshaw, Ralf S. Klessen, Adam K. Leroy, Daizhong Liu, Daniel Maschmann, Sharon E. Meidt, Erik Rosolowsky, Eva Schinnerer, Jiayi Sun, Elizabeth J. Watkins, Thomas G. Williams   +30 more
doaj   +1 more source

Star formation in isolated AMIGA galaxies: dynamical influence of bars

, 2007
Star formation depends strongly both on the local environment of galaxies, and on the internal dynamics of the interstellar medium. To disentangle the two effects, we obtained, in the framework of the AMIGA project, Ha and Gunn r photometric data for ...
Athanassoula, Athanassoula, Berentzen, Berentzen, Block, Block, Bournaud, Bournaud, Buta, Combes, Combes, Combes, de Grijs, de Vaucouleurs, de Vaucouleurs, Elmegreen, Eskridge, Espada, F. Combes, Friedli, G. Bergond, García-Burillo, García-Burillo, Hameed, Helfer, James, Jogee, Karachentseva, Knapen, Knapen, L. Verdes-Montenegro, Laurikainen, Laurikainen, Leon, Lisenfeld, Martin, Pfenniger, Quillen, Reynaud, S. Leon, S. Verley, Seigar, Shen, Sheth, Sulentic, Varela, Verdes-Montenegro, Verley, Verley   +48 more
core   +1 more source

Multiple pattern speeds and the manifold spirals in a simulation of a barred spiral galaxy

Monthly notices of the Royal Astronomical Society
Observations of real galaxies as well as N-body simulations often indicate the presence of multiple pattern speeds in the disc of a barred spiral galaxy.
K. Zouloumi, M. Harsoula, C. Efthymiopoulos   +2 more
semanticscholar   +1 more source

Circumnuclear regions in barred spiral galaxies -- II. Relations to host galaxies [PDF]

Monthly Notices of the Royal Astronomical Society, 2002
MNRAS, in press. 16 pages latex, contains 11 postscript figures.
Knapen, J. H., Perez-Ramirez, D., Laine, S.   +2 more
openaire   +2 more sources