Results 51 to 60 of about 5,024 (304)

A Dynamical Model for IRAS 00500+6713: The Remnant of a Type Iax Supernova SN 1181 Hosting a Double Degenerate Merger Product WD J005311

open access: yesThe Astrophysical Journal
IRAS 00500+6713 is a hypothesized remnant of a Type Iax supernova SN 1181. Multiwavelength observations have revealed its complicated morphology; a dusty infrared ring is sandwiched by the inner and outer X-ray nebulae. We analyze the archival X-ray data
Takatoshi Ko   +8 more
doaj   +1 more source

Are sdAs helium core stars?

open access: yesOpen Astronomy, 2017
Evolved stars with a helium core can be formed by non-conservative mass exchange interaction with a companion or by strong mass loss. Their masses are smaller than 0.5 M⊙. In the database of the Sloan Digital Sky Survey (SDSS), there are several thousand
Pelisoli Ingrid   +2 more
doaj   +1 more source

Stellar Archeology: What White Dwarf Stars Tell Us About the History of the Galaxy [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2012
White dwarf stars have played important roles in rather diverse areas of astrophysics. This paper outlines how these stellar remnants, especially those in widely separated “fragile” binaries, have provided unique leverage on difficult astrophysical ...
Terry D. Oswalt
doaj   +1 more source

White dwarf stars [PDF]

open access: yes, 2015
White dwarf stars were first discovered only fifty years ago, when the science of astrophysics was in its infancy. The original discovery appears to have been made by Russell (l).
Bell, Roger Alistair
core   +1 more source

Heat Stress in Quail: Impacts on Health and Productivity, and Mitigation Strategies

open access: yesAnimal Research and One Health, EarlyView.
Heat stress disrupts physiological homeostasis in quail, inducing oxidative stress, immune dysregulation, and metabolic imbalance, which impair growth, reproduction, product quality, and welfare. Integrating nutritional, environmental, and genetic–epigenetic strategies enhances thermotolerance, sustains productivity, and supports climate‐smart quail ...
T. A. Eletu   +6 more
wiley   +1 more source

Revisiting the White Dwarf Luminosity Function from the Palomar-Green Survey

open access: yes, 2018
The 21st European Workshop on White Dwarfs was held in Austin, TX from July 23rd to 27th of 2018We present updated atmospheric parameters for all DA, DB, and DO white dwarfs in the complete sample of the Palomar-Green survey. In particular, we perform
Bergeron, P., Bédard, A., Fontaine, G.
core   +1 more source

Essential work, invisible workers: The role of digital curation in COVID‐19 Open Science

open access: yesJournal of the Association for Information Science and Technology, Volume 76, Issue 4, Page 703-717, April 2025.
Abstract In this paper, we examine the role digital curation practices and practitioners played in facilitating open science (OS) initiatives amid the COVID‐19 pandemic. In Summer 2023, we conducted a content analysis of available information regarding 50 OS initiatives that emerged—or substantially shifted their focus—between 2020 and 2022 to address ...
Irene V. Pasquetto   +2 more
wiley   +1 more source

Evolution and Asteroseismology of Pulsating Low-Mass White Dwarfs

open access: yes, 2018
The 21st European Workshop on White Dwarfs was held in Austin, TX from July 23rd to 27th of 2018Many low-mass white dwarfs are being discovered in the field of our galaxy and some of them exhibit g-mode pulsations, comprising the extremely low-mass ...
Kepler, S.O.   +4 more
core   +1 more source

White Dwarfs In Ngc6397 And M4: Constraints On The Physics Of Crystallization [PDF]

open access: yes, 2010
We explore the physics of crystallization in the dense Coulomb plasma of the deep interiors of white dwarf stars using the color-magnitude diagram and luminosity function constructed from Hubble Space Telescope photometry of the globular cluster M 4 and ...
Kepler, S. O.   +9 more
core   +1 more source

Beyond the Outburst: Charting a New Frontier for Understanding and Treating Irritability in Autistic Adults

open access: yesAutism Research, EarlyView.
ABSTRACT Irritability is a prevalent and impairing feature associated with autism, yet remains poorly understood, particularly in adults. Drawing heavily on insights translated from pediatric and transdiagnostic literatures, we propose that irritability in autistic individuals often reflects a psychophysiological stress or threat response, rooted in a ...
Hsiang‐Yuan Lin   +3 more
wiley   +1 more source

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