Results 61 to 70 of about 17,995 (289)

Star-forming Nuclear Clusters in Dwarf Galaxies Mimicking Active Galactic Nucleus Signatures in the Mid-infrared

The Astrophysical Journal
Effectively finding and identifying active galactic nuclei (AGNs) in dwarf galaxies is an important step in studying black hole formation and evolution.
Megan R. Sturm, Bayli Hayes, Amy E. Reines   +2 more
doaj   +1 more source

JWST/NIRCam Probes Young Star Clusters in the Reionization Era Sunrise Arc

The Astrophysical Journal, 2023
Star cluster formation in the early universe and its contribution to reionization remains largely unconstrained to date. Here we present JWST/NIRCam imaging of the most highly magnified galaxy known at z ∼ 6, the Sunrise arc.
Eros Vanzella, Adélaïde Claeyssens, Brian Welch, Angela Adamo, Dan Coe, Jose M. Diego, Guillaume Mahler, Gourav Khullar, Vasily Kokorev, Masamune Oguri, Swara Ravindranath, Lukas J. Furtak, Tiger Yu-Yang Hsiao, Abdurro’uf, Nir Mandelker, Gabriel Brammer, Larry D. Bradley, Maruša Bradač, Christopher J. Conselice, Pratika Dayal, Mario Nonino, Felipe Andrade-Santos, Rogier A. Windhorst, Nor Pirzkal, Keren Sharon, S. E. de Mink, Seiji Fujimoto, Adi Zitrin, Jan J. Eldridge, Colin Norman   +29 more
doaj   +1 more source

Supersonic line broadening within young and massive super star clusters [PDF]

, 2010
The origin of supersonic infrared and radio recombination nebular lines often detected in young and massive superstar clusters are discussed. We suggest that these arise from a collection of repressurizing shocks (RSs), acting effectively to re-establish
GUILLERMO TENORIO TAGLE, SERGIY SILICH
core  

Coaxially Electrospun Myocardial dECM‐ Based Nanofibrous Scaffolds Demonstrate Enhanced Cardiomyocyte Biocompatibility

Advanced Healthcare Materials, EarlyView.
Our coaxial electrospinning system is capable of incorporating decellularized myocardial extracellular matrix in a core‐sheath configuration, creating nanofibrous scaffolds. These scaffolds, in turn, support the maintenance of functional cardiomyocytes adhered to the surface of these bioactive scaffolds.
Dhanusha N. Rajapakse, Mahtab Khodadadi, Kiran M. Ali, Suh Hee Cook, Bryson T. Proctor, Tanya Upadhyay, Daxian Zha, Fatema Tuj Jahura, Marziyeh Boosaliki, Jessica M. Gluck   +9 more
wiley   +1 more source

JWST Observations of Starbursts: Massive Star Clusters in the Central Starburst of M82

The Astrophysical Journal Letters
We present a near-infrared (NIR) candidate star cluster catalog for the central kiloparsec of M82 based on new JWST NIRCam images. We identify star cluster candidates using the F250M filter, finding 1357 star cluster candidates with stellar masses >10 ^4
Rebecca C. Levy, Alberto D. Bolatto, Divakara Mayya, Bolivia Cuevas-Otahola, Elizabeth Tarantino, Martha L. Boyer, Leindert A. Boogaard, Torsten Böker, Serena A. Cronin, Daniel A. Dale, Keaton Donaghue, Kimberly L. Emig, Deanne B. Fisher, Simon C. O. Glover, Rodrigo Herrera-Camus, María J. Jiménez-Donaire, Ralf S. Klessen, Laura Lenkić, Adam K. Leroy, Ilse De Looze, David S. Meier, Elisabeth A. C. Mills, Juergen Ott, Mónica Relaño, Sylvain Veilleux, Vicente Villanueva, Fabian Walter, Paul P. van der Werf   +27 more
doaj   +1 more source

Natural Biomaterials for Osteochondral Repair: From Source to Strategy

Advanced Healthcare Materials, EarlyView.
Biological origin‐guided overview of natural biomaterials and therapeutic strategies for osteochondral tissue engineering. The circular diagram categorizes representative materials and strategies into plant/algae‐derived, microbial‐derived, animal‐derived, and human‐derived sources, centered on an osteochondral defect repair model.
Hengyu Liu, Hanyang Zhang, Wenbo Yang, Hao Chen, Jincheng Wang, Fei Chang   +5 more
wiley   +1 more source

The Evolution of Substructure during Star Cluster Assembly

The Astrophysical Journal
Star cluster formation and assembly occur inside filamentary and turbulent molecular clouds, which imprint both spatial and kinematic substructure on the young cluster.
Edwin Laverde-Villarreal, Alison Sills, Claude Cournoyer-Cloutier, Veronica Arias Callejas   +3 more
doaj   +1 more source

The spatial evolution of young massive clusters

Astronomy & Astrophysics, 2020
International audience ; Context. Better understanding of star formation in clusters with high-mass stars requires rigorous dynamical and spatial analyses of star-forming regions.Aims. We seek to demonstrate that “INDICATE” is a powerful spatial analysis tool which when combined with kinematic data from Gaia DR2 can be used to probe star formation ...
Buckner, Anne, Khorrami, Zeinab, González, Marta, Lumsden, Stuart, Moraux, Estelle, Oudmaijer, René, Clark, Paul, Joncour, Isabelle, Blanco, José Manuel, de La Calle, Ignacio, Hacar, Álvaro, Herrera-Fernandez, José, Motte, Frédérique, Salgado, Jesús, Valero-Martín, Luis   +14 more
openaire   +2 more sources

Dusty supernovae running the thermodynamics of the matter reinserted within young and massive super stellar clusters [PDF]

, 2013
Following the observational and theoretical evidence that points at core collapse supernovae as major producers of dust, here we calculate the hydrodynamics of the matter reinserted within young and massive super stellar clusters under the assumption of ...
GUILLERMO TENORIO TAGLE, SERGIO MARTINEZ GONZALEZ, SERGIY SILICH   +2 more
core  

Tough, Ductile, and Strong Hard‐Soft Cementitious Composite Enabled by Multi‐Material Additive Manufacturing

Advanced Materials, EarlyView.
Drawing inspiration from the layered hard‐soft architecture found in sea sponges, this work establishes a new framework for architected cementitious composites (ACC) through multi‐material additive manufacturing (MMAM) process. The integration of mortar and elastomer phases into layered architectures enables synergistic toughening mechanisms, including
Aimane Najmeddine, Shashank Gupta, William Makinen, Zayvinn Lin, Krystal Delnoce, Reza Moini   +5 more
wiley   +1 more source