Results 81 to 90 of about 5,024 (304)

The Impact of Breathing Pulses during Core Helium Burning on the Core Chemical Structure and Pulsations of Hydrogen-rich Atmosphere White Dwarfs

The Astrophysical Journal
Breathing pulses are mixing episodes that could develop during the core helium-burning phase of low- and intermediate-mass stars. The occurrence of breathing pulses is expected to bear consequences on the formation and evolution of white dwarfs ...
Alejandro H. Córsico, Leandro G. Althaus   +1 more
doaj   +1 more source

Asteroseismology of White Dwarf Stars

, 2022
All single stars that are born with masses up to 8.5 - 10 solar masses will end their lives as a white dwarf (WD) star. Upon entering this evolutionary stage, WDs enter the cooling sequence, where the stars radiate away their thermal energy, and are ...
Hall, Weston, Hall, Weston.
core  

A disintegrating minor planet transiting a white dwarf [PDF]

, 2015
Most stars become white dwarfs after they have exhausted their nuclear fuel (the Sun will be one such). Between one-quarter and one-half of white dwarfs have elements heavier than helium in their atmospheres, even though these elements ought to sink ...
Johnson, John Asher, Rappaport, Saul, Allyson Bieryla, Latham, David W., Kipping, David, Jason T. Wright, Charbonneau, David, Wittenmyer, Robert A., Saul Rappaport, Ciardi, David R., McCrady, Nate, Andrew Vanderburg, Eastman, Jason, Wright, Jason T., Irwin, Jonathan, Robert A. Wittenmyer, Lewis, John Arban, Jonathan Irwin, Angus, Ruth, David Kipping, Bieryla, Allyson, Dufour, Patrick, Schaefer, Laura, Patrick Dufour, David W. Latham, Brown, Warren R., Warren R. Brown, Jason Eastman, John Arban Lewis, Ruth Angus, Charles Beichman, Vanderburg, Andrew, John Asher Johnson, Laura Schaefer, Nate McCrady, David R. Ciardi, David Charbonneau, Beichman, Charles   +37 more
core   +1 more source

Proso Millet (Panicum miliaceum): Nutritional Composition, Functional Attributes, and Health Implications

Future Postharvest and Food, EarlyView.
A nutrient‐dense grain, proso millet is well‐known for its high protein content and vital amino acids. It is high in fiber, vitamins, and minerals and has many health advantages, including promoting heart health, enhancing digestion, and helping with weight management.
Sangeeta Yadav, Pratiksha Singh, Mazia Ahmed, Pinki Saini   +3 more
wiley   +1 more source

Violent mergers revisited: The origin of the fastest stars in the Galaxy

Astronomy & Astrophysics
Binary systems of two carbon-oxygen white dwarfs are one of the most promising candidates for the progenitor systems of Type Ia supernovae. Violent mergers, where the primary white dwarf ignites when the secondary white dwarf smashes into it while being ...
Pakmor Rüdiger, Shen Ken J., Bhat Aakash, Rajamuthukumar Abinaya Swaruba, Collins Christine E., O’Donnell Cillian, Bauer Evan B., Callan Fionntan P., Röpke Friedrich K., Pollin Joshua M., Maguire Kate, Kwok Lindsey A., Seth Ravi, Taubenberger Stefan, Justham Stephen   +14 more
doaj   +1 more source

Asteroseismology of white dwarf stars [PDF]

Highlights of Astronomy, 1995
Perhaps the hardest scientific problems to solve are those most scientists believe have already been solved, but which have not. Any model we make of an astronomical process is doomed to be incomplete at some level; the “broad-brush” picture of stellar structure and evolution is often accepted as a solved problem, but in fact many discrepancies exist ...
openaire   +1 more source

Convection in white dwarf stars [PDF]

, 2013
White dwarfs are some of the simplest stars. Because of their simplicity, they can be studied to learn fundamental facts about the universe. By studying them, we can learn about their progenitors, and 97% of stars end their lives a white dwarfs.
Luecke, Kevin J.P.
core  

Unlocking the secrets of white dwarf stars

, 2015
White dwarfs, each containing about as much mass as our Sun but packed into a volume about the size of Earth, are the endpoints of evolution for most stars.
Van Horn, Hugh M
core   +1 more source

Rethinking law in books versus law in action in China's first experiment of a personal insolvency regime: Towards a more debtor‐oriented procedural design

International Insolvency Review, EarlyView.
Abstract Although a local experiment, the promulgation of the Regulations of Shenzhen Special Economic Zone on Personal Bankruptcy (SPBR) in 2020 was hailed as a significant milestone in China's insolvency lawmaking which has thus far addressed only corporate insolvencies.
Jenny Fu, Jin Chun
wiley   +1 more source

The DB gap and a new class of pulsating white dwarfs

EPJ Web of Conferences, 2013
The recent systematic surveys providing enormously massive datasets of white dwarfs show that there is still a deficit of a factor of 2.5 in the DA/non-DA ratio within the temperature range of 30 000 K < Teff < 45 000 K, which has been regarded as the ...
Shibahashi H.
doaj   +1 more source