Results 71 to 80 of about 59,262 (278)

Eclipse Depth Variations in Seven Eclipsing Binaries as Observed by KELT and TESS

The Astronomical Journal
A set of eclipsing binary systems exhibit a changing inclination over time due to the gravitational influence of a third stellar companion. These changing inclinations manifest in photometric observations over time as eclipse depth variations.
Anna C. Baum, Joshua Pepper, James R. A. Davenport, Steve B. Howell   +3 more
doaj   +1 more source

Photometric Observations of Eccentric Accretion in Algol-type Binary Stars [PDF]

Journal of Astronomy and Space Sciences, 2012
Some Algol-type interacting binary stars exhibit strange photometric variations that can be phase-dependent and/or secular. This paper discusses the possibility of explaining these observed variations as resulting from an accretion structure eclipsing ...
Phillip A. Reed
doaj   +1 more source

Micro Elastofluidics for Tuneable Droplet Merging

Advanced Materials Technologies, EarlyView.
This technical paper provides a proof of concept of fully flexible and stretchable microfluidic technology for tuneable droplet mixing and merging. The phenomenon is justified through theoretical, numerical and experimental studies. ABSTRACT Droplet microfluidics enables precise handling of discrete fluid volumes at the microscale, with broad ...
Uditha Roshan, Amith Mudugamuwa, Xiaoyue Kang, Prabuddha De Saram, Fariba Malekpour Galogahi, Du Tuan Tran, Lingxi Ouyang, Jun Zhang, Nam‐Trung Nguyen   +8 more
wiley   +1 more source

The Amateur and Eclipsing Binary Stars [PDF]

International Astronomical Union Colloquium, 1988
Probably no other branch of science has benefited as much from the work of dedicated amateurs as has the science of Astronomy. While some amateurs have made many useful types of astronomical observations– comets, meteors, occultations, etc. – perhaps none has been as extensive and as useful as those made in the field of variable stars.
openaire   +1 more source

Spectrophotometry of massive eclipsing binary stars

The Astrophysical Journal Supplement Series, 1979
Normalized flux distributions were measured for U Ophiuchi, AG Persei, lambda Tauri, and V356 Sagitarii from 1976 July to 1978 March. The spectra of lambda Tauri match those of a B4 star and an A4 star at phases 0.77--9.90, and those of a B3 star and an A4 star at other phases.
G. L. Clements, J. S. Neff
openaire   +1 more source

The first CCD photometric study of the open cluster NGC 2126

, 2003
We present the first CCD photometric observations of the northern open cluster NGC 2126. Data were taken on eight nights in February and December 2002 with a total time span of ~57 hours.
A. Derekas, A. Gáspár, Arentoft, Bertelli, Bessell, Breger, Breger, Chevalier, Choo, Cs. Kiss, Cuffey, Cutispoto, Frandsen, Gilliland, Gy. M. Szabó, Handler, K. Sárneczky, Kim, Kim, Kim, Kiss, L. L. Kiss, M. Váradi, Mkrtichian, Monet, Ohshima, Reed, Rieke, Rodríguez, Rodríguez, Rucinski, S. Kaspi, Stellingwerf, T. R. Bedding, Thompson, Willems   +35 more
core   +1 more source

Testing convection in stellar models using detached eclipsing binaries [PDF]

, 2006
The fundamental properties of detached eclipsing binary stars can be measured very accurately, which could make them important objects for constraining the treatment of convection in theoretical stellar models.
Andersen, Hans Bruntt, John Southworth, Lebreton, Ludwig, Maeder, Meynet, Nordström, Southworth, Southworth, Southworth   +10 more
core   +4 more sources

KEPLER ECLIPSING BINARY STARS. III. CLASSIFICATION OF KEPLER ECLIPSING BINARY LIGHT CURVES WITH LOCALLY LINEAR EMBEDDING [PDF]

, 2012
We present an automated classification of 2165 Kepler eclipsing binary (EB) light curves that accompanied the second Kepler data release. The light curves are classified using locally linear embedding, a general nonlinear dimensionality reduction tool ...
G. Matijevič, A. Prša, J. Orosz, W. Welsh, S. Bloemen, T. Barclay   +5 more
semanticscholar   +1 more source

Delivery of Pleckstrin‐Homology Domains Suppresses PI3K/Akt Signaling and Breast Cancer Metastasis

Advanced Science, EarlyView.
Current therapies curb tumor growth but not metastasis. Obscurin, a giant metastasis suppressor lost in breast cancer, restrains PI3K/Akt signaling but is impractical to restore. We deploy a mini‐obscurin, comprising the obscurin‐PH‐domain, which sequesters PI3K‐p85, potently suppressing invasion and metastasis.
Matthew Eason, Anindya Sen, Suhan Cho, Se Jong Lee, Keyata Thompson, Md Musavvir Mahmud, Poornima Dubey, Talia Guardia, Anthony Kim, Stuart Martin, Nathan Wright, Konstantinos Konstantopoulos, Aikaterini Kontrogianni‐Konstantopoulos   +12 more
wiley   +1 more source

Modelling of W UMa-type variable stars

South African Journal of Science, 2009
W Ursae Majoris (W UMa)-type variable stars are over-contact eclipsing binary stars. To understand how these systems form and evolve requires observations spanning many years, followed by detailed models of as many of them as possible.
P. Skelton, D. Smits
doaj