Results 41 to 50 of about 301 (183)
Theoretical Light-curve Models of the Symbiotic Nova CN Cha—Optical Flat Peak for 3 Yr
The Astrophysical Journal, 2023 CN Cha is a slow symbiotic nova characterized by a 3 yr long optical flat peak followed by a rapid decline. We present theoretical light curves for CN Cha, based on hydrostatic approximation, and estimate the white-dwarf (WD) mass to be ∼0.6 M _☉ for a ...
Mariko Kato, Izumi Hachisu
doaj +1 more source
On the secondary star of the cataclysmic variable 1RXS J094432.1+035738 [PDF]
Astronomy & Astrophysics, 2002 We present V and Rc band photometry and optical near-infrared spectroscopy of the cataclysmic variable 1RXS J094432.1+035738. We detected features of a cool secondary star, which can be modeled with a red dwarf of spectral type M2 (+0.5 -1.0) V at a distance of 433 +- 100 pc.
Mennickent, R. E. +6 more
openaire +5 more sources
The End of Self‐Regulation: Will the Football Governance Act 2025 Fix the National Game?
The 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 AM Her System RX J1844.2+4454/2MASS J18441496+4454091/ZTF18aapobha
The Astrophysical JournalBased on ROSAT All-Sky Survey data and optical follow-up observations, we report observations of the cataclysmic variable RX J1844.2+4454/2MASS J18441496+4454091/ZTF18aapobha.
J. Greiner +3 more
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A spectrophotometric survey of cataclysmic variable stars
The Astronomical Journal, 1982 A sample of dwarf novae and other cataclysmic variable stars were observed using the multichannel spectrophotometer on the 5-m Hale reflector. A preliminary qualitative description of the continuum distributions is given and a discussion of the Balmer emission-line fluxes is made.
J. B. Oke, R. A. Wade
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The ethics of responding to democratic backsliding abroad
American 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
TESS Light Curves of Cataclysmic Variables. VI. Intermediate Polars
The Astrophysical Journal Supplement SeriesThe long and (almost) continuous high-cadence light curves provided by the TESS space mission are ideally suited to study in detail brightness variations in stellar sources on the broad range of timescales between minutes and months.
Albert Bruch
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Deep Segregation: Informality, Trust and the Making of Discrimination in Markets
Antipode, 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
Photometric Analysis of the Cataclysmic Variable Star LT Eri
The Astronomical JournalLT Eri is a long-period eclipsing cataclysmic variable star (CV). This study investigates its outbursts, negative superhumps (NSHs), tilted-disk precession, eclipse-depth variations, and observed minus calculated ( O – C ) behavior, using photometric ...
Qi-Bin Sun +6 more
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LAMOST J2043+3413—a Fast Disk Precession SW Sextans Candidate in Period Gap
The Astronomical Journal, 2023 We present follow-up photometric observations and time-series analysis of a nova-like, SW Sextans-type, cataclysmic variable (CV) candidate, LAMOST J204305.95+341340.6 (hereafter J2043+3413), with a Gaia G -band magnitude of 15.30 and a distance of 990 ...
Xin Li +7 more
doaj +1 more source