Results 41 to 50 of about 68,770 (231)

When is a Bulge Not a Bulge? Revealing the Satellite Nature of NGC 5474’s Bulge

The Astrophysical Journal
A satellite galaxy of the nearby spiral M101, NGC 5474 has a prominent bulge offset from the kinematic center of the underlying star-forming disk that has gained attention in recent years.
Ray Garner III, J. Christopher Mihos, F. Fabián Rosales-Ortega   +2 more
doaj   +1 more source

The Gut Commensal Butyricimonas Virosa Modulates Gut Microbiota‐Dependent Thiamine Metabolism and Attenuates Mouse Steatotic Liver Disease

Advanced Science, EarlyView.
This study reveals that dietary stachyose enriches Butyricimonas virosa, effectively attenuating metabolic dysfunction‐associated steatotic liver disease (MASLD). Mechanistically, B. virosa enhances gut thiamine monophosphate synthesis, which elevates hepatic thiamine pyrophosphate levels.
Ningning He, Haoyu Wang, Zizhen Yang, Hui Li, Bei Liu, Kaiwei Chen, Zhinan Wu, Xinnan Zhao, Hewei Liang, Mengmeng Wang, Xiaofang Li, Yiyi Zhong, Haifeng Zhang, Liang Xiao, Karsten Kristiansen, Jixing Peng, Yuanqiang Zou, Shangyong Li   +17 more
wiley   +1 more source

Mapping the Active Galactic Nucleus Effects on the Stellar and Gas Properties of NGC 5806

The Astrophysical Journal
It is commonly accepted that active galactic nuclei (AGNs) have a strong impact upon the evolution of their host galaxies, but the processes by which they do so are not fully understood.
Sophie L. Robbins, Sandra I. Raimundo, Matthew A. Malkan   +2 more
doaj   +1 more source

Spectroscopic Confirmation of Multiple Red Galaxy-Galaxy Mergers in MS1054-03 (z=0.83)

, 2005
We present follow-up spectroscopy of the galaxy cluster MS1054-03 (z=0.83) confirming that at least six of the nine merging galaxy pairs identified by van Dokkum et al.
Franx, Marijn, Illingworth, Garth D., Kelson, Daniel D., Schreiber, Natascha M. Forster, Tran, Kim-Vy H., van Dokkum, Pieter   +5 more
core   +1 more source

Mapping the Galaxy Color-Redshift Relation: Optimal Photometric Redshift Calibration Strategies for Cosmology Surveys [PDF]

, 2015
Calibrating the photometric redshifts of >10^9 galaxies for upcoming weak lensing cosmology experiments is a major challenge for the astrophysics community.
Brescia, Massimo, Brodwin, Mark, Capak, Peter, Cavuoti, Stefano, Coupon, Jean, Faisst, Andreas, Hildebrandt, Hendrik, Hoekstra, Henk, Ilbert, Olivier, Kalinich, Adam, Longo, Giuseppe, Masters, Daniel, Mobasher, Bahram, Paltani, Stephane, Rhodes, Jason, Salvato, Mara, Schmidt, Samuel, Speagle, Josh, Steinhardt, Charles, Stern, Daniel   +19 more
core   +6 more sources

Spectroscopy of extremely distant radio galaxies [PDF]

The Astrophysical Journal, 1984
In this Letter we report the firm identification of two faint radio galaxies, 3C 13 and 3C 256, and a spectroscopic survey of 13 faint 3CR galaxies. The emission-line redshifts now extend up to z = 1.82 (3C 256), and we here present a list and a preliminary spectrum summary of the character of 11 new radio galaxies with z > 0. 77.
Spinrad, Hyron, Djorgovski, S.
openaire   +2 more sources

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

The Bullseye: HST, Keck/KCWI, and Dragonfly Characterization of a Giant Nine-ringed Galaxy

The Astrophysical Journal Letters
We report the discovery and multiwavelength follow-up of LEDA 1313424 (“Bullseye”), a collisional ring galaxy (CRG) with nine readily identified rings—the most so far reported for a CRG.
Imad Pasha, Pieter G. van Dokkum, Qing Liu, William P. Bowman, Steven R. Janssens, Michael A. Keim, Chloe Neufeld, Roberto Abraham   +7 more
doaj   +1 more source

Near‐Infrared Spectroscopy of Arp Interacting Galaxies

The Astrophysical Journal, 1998
Peer ...
Vanzi, Leonardo, Alonso-Herrero, A., Rieke, George H.   +2 more
openaire   +2 more sources

An ATP‐Mediated Antibiotic β‐Peptide Nanofiber That Kills Multidrug‐Resistant Bacteria via a Multistage Mechanism

Advanced Science, EarlyView.
The 3K‐AP system forms infinite supramolecular fibrils that undergo controlled degradation into shorter fragments upon enzymatic hydrolysis. Multitechnique imaging reveals a stepwise bacteriolytic mechanism involving bacterial entrapment, disassembly into lethal constructs, and associated extracellular vesicle release, highlighting the dynamic ...
Sohini Chakraborty, Kamal el Battioui, Dániel Molnár, Bálint Jezsó, Lejla Daruka, Tasvilla Sonallya, Tünde Juhász, Rita Hirmondó, Imola Cs. Szigyártó, Loránd Románszki, Natália Tőkési, Daniel Pinkas, Eszter Házy, Olivér Pavela, Andrea Bodor, Zoltán Varga, István Mándity, Mihály Kovács, Csaba Pál, Kata Horváti, Judit Tóth, Tamás Beke‐Somfai   +21 more
wiley   +1 more source