Results 61 to 70 of about 22,085 (227)
Post-AGB Binaries as Interacting Systems
GalaxiesWe present recent progress in our understanding of the physical interaction mechanisms at work in evolved binaries of low-to-intermediate initial mass, which are surrounded by a stable disc of gas and dust.
Hans Van Winckel
doaj +1 more source
Quantifying Uncertainties on the Tip of the Red Giant Branch Method
The Astronomical Journal, 2023 We present an extensive grid of numerical simulations quantifying the uncertainties in measurements of the tip of the red giant branch (TRGB). These simulations incorporate a luminosity function composed of 2 mag of red giant branch (RGB) stars leading ...
Barry F. Madore +3 more
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The stellar spectral features of nearby galaxies in the near infrared: tracers of thermally pulsing asymptotic giant branch stars? [PDF]
, 2015 We analyze the stellar absorption features in high signal-to-noise ratio near-infrared (NIR) spectra of the nuclear region of 12 nearby galaxies, mostly spirals.
R. Riffel +14 more
semanticscholar +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 +4 more
wiley +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 +2 more
wiley +1 more source
Post-Asymptotic Giant Branch Evolution of Low- and Intermediate-Mass Stars. Preliminary Results [PDF]
, 2014 Preliminary results from an ongoing project to compute a grid of post-AGB models is presented. Our preliminary results show that stellar evolution computations that include an updated treatment of the microphysics predict post-AGB timescales that are ...
M. M. Bertolami
semanticscholar +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 +5 more
wiley +1 more source
The Astrophysical Journal, 2023 In previous work, we identified a population of 38 cool and luminous variable stars in the Magellanic Clouds and examined 11 in detail in order to classify them as either Thorne–Żytkow objects (TŻOs; red supergiants with a neutron star cores) or super ...
Anna J. G. O‘Grady +11 more
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Polarisation of molecular lines in the circumstellar envelope of the post-Asymptotic Giant Branch star OH 17.7-2.0 [PDF]
, 2023 W. H. T. Vlemmings, D. Tafoya
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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
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