Results 61 to 70 of about 10,468 (212)

Evolution of Cataclysmic Variables with Binary-driven Mass Loss during Nova Eruptions

open access: yesThe Astrophysical Journal
The discrepancies between observations and theoretical predictions of cataclysmic variables (CVs) suggest that there exists unknown angular-momentum-loss mechanism(s) besides magnetic braking and gravitational radiation.
Wen-Shi Tang, Xiang-Dong Li, Zhe Cui
doaj   +1 more source

A Broadband X-Ray Study of the Dwarf Nova SS Cyg during Quiescence and Outburst

open access: yesThe Astrophysical Journal, 2023
We present a broadband X-ray study (∼0.3–50 keV) of the dwarf nova SS Cyg highlighting the changes in the accretion during two phases, the quiescence and the outburst states.
Anirban Dutta   +3 more
doaj   +1 more source

Exploring Tolerance Towards Corruption in the European Union Through Experienced Corruption, Perceived Corruption and Institutional Trust

open access: yesBusiness Ethics, the Environment &Responsibility, Volume 35, Issue 2, Page 1279-1304, April 2026.
ABSTRACT Corruption is a major problem that undermines the foundations of democracy and reduces citizens' trust in institutions. However, even in the world's most advanced countries, citizens accept certain levels of corruption. This tolerance towards corruption (TC) reduces the impact of anti‐corruption actions and ends up giving a patina of normality
Begoña Alvarez‐García   +3 more
wiley   +1 more source

Nine New Cataclysmic Variable Stars with Negative Superhumps

open access: yesThe Astrophysical Journal
Negative superhumps (NSHs) are signals a few percent shorter than the orbital period of a binary star and are considered to originate from the reverse precession of the tilted disk.
Qi-Bin Sun   +7 more
doaj   +1 more source

Identification of 1RXS J165424.6-433758 as a Polar Cataclysmic Variable

open access: yesThe Astrophysical Journal, 2023
We present the results of our X-ray, ultraviolet, and optical follow-up campaigns of 1RXS J165424.6-433758, an X-ray source detected with the Swift Deep Galactic Plane Survey.
B. O’Connor   +27 more
doaj   +1 more source

Recovery of the old nova V840 Ophiuchi: A carbon rich system [PDF]

open access: yes, 2003
We present optical spectroscopy and multi colour photometry of the old nova V840 Oph. We rediscovered the nova based on its position in the colour--colour diagrams. It stands out as a very blue object with an additional red component.
A. Bianchini   +22 more
core   +1 more source

Irradiation of the secondary star in cataclysmic variables [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1992
It is shown how the relative strength of the Na I doublet over the surface of the secondary star can be calculated from radial velocity curves obtained using the Na I absorption feature around 8190 A. The results for 11 dwarf novae and one magnetic cataclysmic binary system are presented.
S. Davey, R. C. Smith
openaire   +1 more source

Polanyi on crisis: The United States, fascism and ecological break‐down

open access: yesJournal of Law and Society, Volume 53, Issue S1, Page S131-S150, April 2026.
Abstract This article uses Karl Polanyi's understanding of the crisis inherent in liberal economics to analyse a contemporary crisis—Trump's global tariff agenda. It argues that Trump's tariff agenda conforms to Polanyi's interpretation of how the crisis of liberal economics can disintegrate into more malignant forces.
ROWAN ALCOCK
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

Molecular Alterations in Osteosarcomas of the Oral and Maxillofacial Region: A Scoping Review

open access: yesJournal of Oral Pathology &Medicine, Volume 55, Issue 4, Page 439-447, April 2026.
ABSTRACT Background Given the rarity and aggressive nature of osteosarcomas (OS) in the oral and maxillofacial region, understanding their molecular alterations is essential to improve diagnosis, prognosis, and guide targeted therapies. This study aimed to map molecular alterations associated with oral and maxillofacial OS, providing an overview of the
Iara Vieira Ferreira   +6 more
wiley   +1 more source

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