Results 81 to 90 of about 3,760 (219)

The Contribution of Asymptotic Giant Branch Stars to the Infrared Luminosities of Galaxies [PDF]

, 2011
Using resolved stellar photometry in Hubble Space Telescope WFC3 images of 22 nearby galaxies, we measure the fraction of near-infrared (NIR) luminosity produced by short-lived asymptotic giant branch (AGB) stars.
Melbourne, J., Girardi, L., Dalcanton, J., Williams, B., Marigo, P., MARIGO, PAOLA   +5 more
core  

Mg And Al production in intermediate-mass asymptotic giant branch stars

, 2015
We study how the production of the magnesium and aluminum isotopes in intermediate mass Asymptotic Giant Branch stars is affected by uncertainties in the 22Ne + α-capture reaction rates.
Wiescher, M., Karakas, Amanda, Lugaro, Maria Anna, Görres, Joachim, Ugalde, C.   +4 more
core   +1 more source

Population Synthesis Models for Normal Galaxies with Dusty Disks [PDF]

Journal of Astronomy and Space Sciences, 2003
To investigate the SEDs of galaxies considering the dust extinction processes in the galactic disks, we present the population synthesis models for normal galaxies with dusty disks. We use PEGASE (Fioc & Rocca-Volmerange 1997) to model them with standard
Kyung-Won Suh, Mi-Ryang Kim
doaj   +1 more source

The Radio Wave Polarization of Saturn Lightning Observed by Cassini

Journal of Geophysical Research: Space Physics, Volume 130, Issue 6, June 2025.
Abstract We investigate the polarization of the radio waves emitted by lightning in Saturn's atmosphere, which are referred to as SEDs for Saturn Electrostatic Discharges. Using the complete SED data set retrieved by Cassini's RPWS (Radio and Plasma Wave Science) instrument we found that the circular polarization of SEDs below a frequency of 2 MHz ...
G. Fischer, M. Imai, U. Taubenschuss, D. Píša, W. S. Kurth   +4 more
wiley   +1 more source

Charting circumstellar chemistry of carbon-rich asymptotic giant branch stars

Astronomy & Astrophysics
Context. The circumstellar envelopes of AGB stars are sites of rich molecular chemistry. The present understanding of C-rich AGB chemistry largely relies on observations of the archetypal carbon star IRC+10 216.
Unnikrishnan R., De Beck E., Nyman L.-Å., Olofsson H., Vlemmings W. H. T., Maercker M., Van de Sande M., Millar T. J., Danilovich T., Andriantsaralaza M., Charnley S. B., Rawlings M. G.   +11 more
doaj   +1 more source

Of Biogeography, Fishes and Kelp: Environmental DNA Metabarcoding the Great African Seaforest

Diversity and Distributions, Volume 31, Issue 6, June 2025.
ABSTRACT Aim The biodiversity associated with kelp forest ecosystems is understudied globally, including in South Africa, where kelp forests have expanded their range under climate change. This study used environmental DNA (eDNA) metabarcoding to assess fish biodiversity across an expansive range (~1000 km) of South Africa's kelp forests, contributing ...
Kira‐Lee Courtaillac, Jannes Landschoff, Sophie von der Heyden   +2 more
wiley   +1 more source

Classification study of WISE infrared sources: identification of candidate asymptotic giant branch stars

, 2013
In the Wide-field Infrared Survey Explorer (WISE) all-sky source catalog there are 76 million mid-infrared point sources that were detected in the first three WISE bands and have association with only one 2MASS near-IR source within 3 ''.
Tu, Xun, Wang, Zhong-Xiang
core  

Ba Enrichment in Gaia MS+WD Binaries: Tracing s-process Element Production

The Astrophysical Journal Letters
A large population of intermediate-separation binaries, consisting of a main-sequence (MS) star and a white dwarf (WD), recently emerged from Gaia’s third data release (DR3), posing challenges to current models of binary evolution. Here we examine the s -
Param Rekhi, Sagi Ben-Ami, Na’ama Hallakoun, Sahar Shahaf, Silvia Toonen, Hans-Walter Rix   +5 more
doaj   +1 more source

Quantum Batteries: A Materials Science Perspective

Advanced Materials, Volume 37, Issue 17, April 28, 2025.
This perspective is focused on advanced materials that might allow the new device class of quantum batteries to be developed. These systems include microcavities with organic molecules, inorganic nanostructures and perovskites, and superconductor circuits.
Andrea Camposeo, Tersilla Virgili, Floriana Lombardi, Giulio Cerullo, Dario Pisignano, Marco Polini   +5 more
wiley   +1 more source

Updates on the Ultraviolet Emission from Asymptotic Giant Branch Stars

, 2019
A comprehensive study of UV emission from asymptotic giant branch (AGB) stars with the Galaxy Evolution Explorer (GALEX) revealed that out of the 316 observed AGB stars, 57% were detected in the near-UV (NUV) bandpass and 12% were detected in the far-UV (
Montez, R., Vlemmings, Wouter, Vlemmings, Wouter,, Ramstedt, S.,, Kastner, J. H., Montez, R.,, Ramstedt, S., Kastner, J. H.,   +7 more
core   +1 more source