Results 151 to 160 of about 58,665 (312)

The Triple System V1371 Tau: An Eclipsing Binary with an Outer Be Star

open access: yesThe Astrophysical Journal
Although triple systems are common, their orbital dynamics and stellar evolution remain poorly understood. We investigated the V1371 Tau system using TESS photometry, multiepoch spectroscopy, and recent interferometric data, confirming it as a rare ...
Danilo F. Rocha   +12 more
doaj   +1 more source

THE AESTHETICS OF URBAN METABOLISM: Landscape, Design and the Politics of In/Visibility

open access: yesInternational Journal of Urban and Regional Research, EarlyView.
Abstract In this article, we chart the evolving aesthetic contours of urban metabolism across London, focusing on the River Lea and Thamesmead to the north and south of the River Thames, respectively. We begin in the nineteenth century, when these two sites formed critical nodes within a new sewerage system that relegated the city’s circulatory flows ...
Ben Platt, Zuhri James
wiley   +1 more source

A Reflection Model for Eclipsing Binary Stars [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1973
A highly accurate reflection model has been developed which emphasizes efficiency of computer calculation. It is assumed that the heating of the irradiated star must depend upon the following properties of the irradiating star: (1) effective temperature; (2) apparent area as seen from a point on the surface of the irradiated star; (3) limb darkening ...
openaire   +1 more source

Hormone Replacement Therapy Uptake and Discontinuation Trends From 1996‐2023: An Observational Study of the Welsh Population

open access: yesBJOG: An International Journal of Obstetrics &Gynaecology, EarlyView.
ABSTRACT Objective To analyse prescribing trends for oral and transdermal hormone replacement therapy (HRT) in Wales from 1996 to 2023, including predictors of discontinuation within one year of initiation. Design Observational study using the Secure Anonymised Information Linkage (SAIL) databank.
Robin Andrews   +3 more
wiley   +1 more source

The Discovery of Two Quadruple Star Systems with the Second and Third Shortest Outer Periods

open access: yesThe Astrophysical Journal
We present the discovery of two quadruple star systems—TIC 285853156 and TIC 392229331—each consisting of two bound eclipsing binary stars. Among the most compact quadruples known, TIC 392229331 and TIC 285853156 have the second and third shortest outer ...
Brian P. Powell   +14 more
doaj   +1 more source

The occurrence of classical Cepheids in binary systems

open access: yes, 2014
Classical Cepheids, like binary stars, are laboratories for stellar evolution and Cepheids in binary systems are especially powerful ones. About one-third of Galactic Cepheids are known to have companions and Cepheids in eclipsing binary systems have ...
Evans, Nancy R.   +4 more
core   +1 more source

Discovery of eclipsing binary central stars in the planetary nebulae M 3-16, H 2-29, and M 2-19 [PDF]

open access: bronze, 2008
B. Miszalski   +4 more
openalex   +1 more source

Should more teams “trust the process” of tanking?

open access: yesContemporary Economic Policy, EarlyView.
Abstract In many professional sport leagues, the worst‐performing teams receive higher probability of earning top draft picks. This provides teams incentives to purposefully lose, or “tank,” if they are not likely to contend for the playoffs or championships.
Eduardo G. Minuci   +2 more
wiley   +1 more source

Evidence for a Close-in Tertiary Orbiting around the Algol-type System HZ Dra with Tidal Splitting and Spots Activities

open access: yesThe Astrophysical Journal
We report a cyclic variation of the O − C diagram with a semiamplitude of 0.0033 days and a period of 1.05 yr for the pulsating eclipsing binary HZ Dra. The cyclic variation can be explained by the light travel-time effect via the presence of a close-in ...
Ping Li   +9 more
doaj   +1 more source

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