Results 61 to 70 of about 72,602 (336)

Oxygen and Sodium Abundances in M13 (NGC 6205) Giants: Linking Globular Cluster Formation Scenarios, Deep Mixing, and Post-RGB Evolution [PDF]

, 2012
We present O, Na, and Fe abundances, as well as radial velocities, for 113 red giant branch (RGB) and asymptotic giant branch (AGB) stars in the globular cluster M13.
Johnson, Christian I., Pilachowski, Catherine A.   +1 more
core   +2 more sources

Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics

Advanced Functional Materials, EarlyView.
Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha, Yingshan Ma, Yong Nam An, Sung‐Un An, Hyeon Hak Jung, Suvi‐Tuuli Varjamo, Jiwon Yoo, Junho Min, Hanvit Kim, Faisal Ahmed, Sang Hoon Chae, Young Min Song, Weiwei Cai, Tawfique Hasan, Zhipei Sun, Dong‐Ho Kang, Hyeon‐Jin Shin, Yunyun Dai, Hoon Hahn Yoon   +18 more
wiley   +1 more source

Interconnected Porous Hydrogels with Tunable Anisotropy Through Aqueous Emulsion Bioprinting

Advanced Functional Materials, EarlyView.
A 3D bioprintable microporous bioink is developed using an aqueous two‐phase system (ATPS) composed of extracellular matrix (ECM) mimetic biopolymers. The ATPS bioink enables the fabrication of interconnected porous architectures with up to 70% porosity, supporting long‐term cell viability and 3D cell alignment, enabling a simultaneous generation of ...
Hugo Edgar‐Vilar, Francisca P. Correia, Inês M. Freitas, Vítor M. Gaspar, João F. Mano   +4 more
wiley   +1 more source

Overview of the DESI Milky Way Survey

The Astrophysical Journal, 2023
We describe the Milky Way Survey (MWS) that will be undertaken with the Dark Energy Spectroscopic Instrument (DESI) on the Mayall 4 m telescope at the Kitt Peak National Observatory.
Andrew P. Cooper, Sergey E. Koposov, Carlos Allende Prieto, Christopher J. Manser, Namitha Kizhuprakkat, Adam D. Myers, Arjun Dey, Boris T. Gänsicke, Ting S. Li, Constance Rockosi, Monica Valluri, Joan Najita, Alis Deason, Anand Raichoor, M.-Y. Wang, Y.-S. Ting, Bokyoung Kim, Andreia Carrillo, Wenting Wang, Leandro Beraldo e Silva, Jiwon Jesse Han, Jiani Ding, Miguel Sánchez-Conde, Jessica N. Aguilar, Steven Ahlen, Stephen Bailey, Vasily Belokurov, David Brooks, Katia Cunha, Kyle Dawson, Axel de la Macorra, Peter Doel, Daniel J. Eisenstein, Parker Fagrelius, Kevin Fanning, Andreu Font-Ribera, Jaime E. Forero-Romero, Enrique Gaztañaga, Satya Gontcho A Gontcho, Julien Guy, Klaus Honscheid, Robert Kehoe, Theodore Kisner, Anthony Kremin, Martin Landriau, Michael E. Levi, Paul Martini, Aaron M. Meisner, Ramon Miquel, John Moustakas, Jundan J. D. Nie, Nathalie Palanque-Delabrouille, Will J. Percival, Claire Poppett, Francisco Prada, Nabeel Rehemtulla, Edward Schlafly, David Schlegel, Michael Schubnell, Ray M. Sharples, Gregory Tarlé, Risa H. Wechsler, David H. Weinberg, Zhimin Zhou, Hu Zou   +64 more
doaj   +1 more source

RR Lyrae variables in Galactic globular clusters: IV. Synthetic HB and RR Lyrae predictions

, 2004
We present theoretical predictions concerning horizontal branch stars in globular clusters, including RR Lyrae variables, as derived from synthetic procedures collating evolutionary and pulsational constraints.
Alexander, Asplund, Benedict, Bono, Bono, Bono, Brocato, Brocato, Buzzoni, Caputo, Caputo, Caputo, Caputo, Caputo, Cassisi, Cassisi, Cassisi, Castellani, Castelli, Catelan, Dall'Ora, Demarque, F. Caputo, Ferraro, Harris, Iben, Iglesias, Kovács, Kraft, Krishna-Swamy, Lee, Longmore, Longmore, M. Castellani, Madore, Marconi, Mateo, Rood, S. Cassisi, Salaris, Sandquist, Straniero, V. Castellani, van den Bergh, Zoccali   +44 more
core   +2 more sources

Extra modes in helium-core-burning stars probing an infra core cavity

Astronomy & Astrophysics
Context. Dipole mixed modes observed in the oscillation pattern of red giant stars probe the radiative regions in the stellar core. Aims. Oscillation spectra of helium-core-burning stars sometimes show extra peaks that remain unexplained by the dipole ...
Mosser B., Takata M., Pinçon C., Cunha M. S., Vrard M., Belkacem K., Deheuvels S., Matteuzzi M.   +7 more
doaj   +1 more source

Asteroseismology of hot B subdwarf stars

EPJ Web of Conferences, 2013
Non-radial pulsations in Extreme Horizontal Branch stars (also known as hot B subdwarfs or sdB stars) offer strong opportunities to study, through asteroseismology, the structure and internal dynamics of stars in this intermediate stage of stellar ...
Fontaine G., Brassard P., Van Grootel V., Charpinet S., Green E.M., Randall S.K.   +5 more
doaj   +1 more source

Laser‐Microscribed Glass Enables Surface‐Microfluidics‐Facilitated, Affordable, Rapid Cancer Diagnosis

Advanced Functional Materials, EarlyView.
A transparent, laser‐microscribed glass platform enables cancer diagnosis within 1 h—much faster than histology, which takes days, and free from the chemical or contrast risks of MRI or CT scans. The antibody‐functionalized rough glass surface captures viable cancer cells directly from suspension, allowing instant optical readout and offering a rapid ...
Anish Pal, Snehasis Mishra, Arani Mukhopadhyay, Ilias Papailias, Atique U. Ahmed, Constantine M. Megaridis   +5 more
wiley   +1 more source

The AGB bump: a calibrator for core mixing

EPJ Web of Conferences, 2015
The efficiency of convection in stars affects many aspects of their evolution and remains one of the key-open questions in stellar modelling. In particular, the size of the mixed core in core-He-burning low-mass stars is still uncertain and impacts the ...
Bossini Diego, Miglio Andrea, Salaris Maurizio, Girardi Léo, Montalbán Josefina, Bressan Alessandro, Marigo Paola, Noels Arlette   +7 more
doaj   +1 more source

Is mass loss along the red giant branch of globular clusters sharply peaked? The case of M3

, 2007
There is a growing evidence that several globular clusters must contain multiple stellar generations, differing in helium content. This hypothesis has helped to interpret peculiar unexplained features in their horizontal branches.
Bessell M. S., Buonanno R., Castellani V., Ferraro F. R., Francesca D’Antona, Reimers D., Vittoria Caloi   +6 more
core   +1 more source