Results 111 to 120 of about 9,884 (228)
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 +4 more
wiley +1 more source
EPJ Web of Conferences, 2013 The recognition that planets may survive the late stages of stellar evolution, and the prospects for finding them around White Dwarfs, are growing. We discuss two aspects governing planetary survival through stellar evolution to the White Dwarf stage ...
Bonsor Amy +4 more
doaj +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
Magnetic Mixing in Red Giant and Asymptotic Giant Branch Stars [PDF]
The Astrophysical Journal, 2008 The available information on isotopic abundances in the atmospheres of low-mass Red Giant Branch (RGB) and Asymptotic Giant Branch (AGB) stars requires that episodes of extensive mixing occur below the convective envelope, reaching down to layers close to the hydrogen burning shell (Cool Bottom Processing).
Nordhaus J. +4 more
openaire +3 more sources
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 +2 more
wiley +1 more source
CO observations of candidates for carbon-rich asymptotic giant branch and post-asymptotic giant branch stars [PDF]
The Astrophysical Journal, 1993 Circumstellar CO emission has been detected in a number of featureless or weak SiC emission, low color temperature IRAS sources. The CO detections confirm the suggestion that these are either extreme carbon stars, carbon-rich proto-planetary nebulae (PPNs), or carbon-rich planetary nebulae (PNs).
Volk, K, Kwok, S, Woodsworth, AW
openaire +3 more sources
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 +5 more
wiley +1 more source
New light on Galactic post-asymptotic giant branch stars - I. First distance catalogue [PDF]
, 2014 We have commenced a detailed analysis of the known sample of Galactic post-asymptotic giant branch (PAGB) objects compiled in the Toru´ n catalogue of Szczerba et al., and present, for the first time, homogeneously derived distance determinations for the
Shane B. Vickers +3 more
semanticscholar +1 more source
On the Pre‐ and Post‐Positional Semi‐Random Graph Processes
Journal of Graph Theory, Volume 108, Issue 4, Page 819-831, April 2025.ABSTRACT We study the semi‐random graph process, and a variant process recently suggested by Nick Wormald. We show that these two processes are asymptotically equally fast in constructing a semi‐random graph G $G$ that has property P ${\mathscr{P}}$, for the following examples of P ${\mathscr{P}}$: (1) P ${\mathscr{P}}$ is the set of graphs containing ...
Pu Gao, Hidde Koerts
wiley +1 more source
Evolution of thermally pulsing asymptotic giant branch stars - I. The COLIBRI code [PDF]
, 2013 We present the COLIBRI code for computing the evolution of stars along the TP-AGB phase. Compared to purely synthetic TP-AGB codes, COLIBRI relaxes a significant part of their analytic formalism in favour of a detailed physics applied to a complete ...
P. Marigo +4 more
semanticscholar +1 more source