Results 71 to 80 of about 2,620,915 (156)

The Secondary Stars of Cataclysmic Variables

open access: yes, 2011
I review what we know about the donor stars in cataclysmic variables (CVs), focusing particularly on the close link between these binary components and the overall secular evolution of CVs. I begin with a brief overview of the "standard model" of CV evolution and explain why the key observables this model is designed to explain - the period gap and the
openaire   +2 more sources

Spectroscopic Follow-up on Potential Magnetic Cataclysmic Variables

open access: yesThe Astronomical Journal
Spectroscopic observations of nine cataclysmic variables that have been postulated to contain magnetic white dwarfs were obtained to further characterize their classifications, orbital parameters, inclinations, and/or accretion properties.
Paula Szkody   +10 more
doaj   +1 more source

The End of Self‐Regulation: Will the Football Governance Act 2025 Fix the National Game?

open access: yesThe Modern Law Review, Volume 89, Issue 4, Page 628-658, July 2026.
The Football Governance Act 2025 is a watershed. It upends the model of self‐regulation that has defined how the game has been run in England and Wales for over a century‐and‐a‐half. The newly created Independent Football Regulator will exercise control over clubs, owners, and competition organisers.
Jan Zglinski
wiley   +1 more source

The properties of cataclysmic variables in photometric H alpha surveys [PDF]

open access: yes, 2006
We report on the properties of 71 known cataclysmic variables (CVs) in photometric H alpha emission-line surveys. Our study is motivated by the fact that the Isaac Newton Telescope (INT) Photometric H alpha Survey of the northern galactic plane (IPHAS ...
Rodriguez-Flores, E.R.   +19 more
core   +1 more source

TESS Light Curves of Cataclysmic Variables. V. Improved or Corrected Orbital Periods of 53 Systems

open access: yesThe Astronomical Journal
The long and continuous high-time-resolution coverage of many stars by the Kepler and TESS space missions permit to explore periodic phenomena with a much higher precision than is possible with terrestrial observations.
Albert Bruch
doaj   +1 more source

The ethics of responding to democratic backsliding abroad

open access: yesAmerican Journal of Political Science, Volume 70, Issue 3, Page 849-863, July 2026.
Abstract The past decade has seen a marked shift as many previously liberal democratic states have backslidden, taking authoritarian turns. How should liberal actors respond to democratic backsliding by others? Although it might seem that it is vital for liberal actors to react robustly to avoid complicity or to maintain their liberal integrity, this ...
James Pattison
wiley   +1 more source

THREE NEW VARIABLE STARS NEAR TT ARI

open access: yes, 2020
: Three new variable stars in Aries were discovered using the remotely controlled astrophysical refractor AP-180 of the Tzec Maun Observatory (USA) in 87.5' x 58.3' field of the cataclysmic variable star TT Ari. These stars
Natalia A Virnina
core  

Deep Segregation: Informality, Trust and the Making of Discrimination in Markets

open access: yesAntipode, Volume 58, Issue 4, July 2026.
ABSTRACT This article advances the concept of deep segregation to theorise how social exclusion is produced through the everyday organisation of market access rather than through spatial separation alone. Deep segregation refers to a relational and processual form of segregation constituted through segmented routes of access, intermediary networks and ...
Mohsin Alam Bhat, Asaf Ali Lone
wiley   +1 more source

Gas flow in cataclysmic variable stars

open access: yesThe Astrophysical Journal, 1975
A numerical hydrodynamic scheme, applicable to gas flow in binary stars, is presented which incorporates the effects of pressure and gravitational forces, radiative cooling, and shock formation. The method is used to study gas flow originating from Roche lobe overflow through the inner Lagrangian point, L$sub 1$, in a binary star modeled to resemble ...
openaire   +1 more source

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