Results 31 to 40 of about 84,288 (244)

Comparative Study of TESS Photometry and Radial Velocities on Six Early K-type Contact Binaries with Similar Periods around 0.268 Day

The Astronomical Journal, 2023
High-precision light curves were extracted from TESScut images. Together with APOGEE and LAMOST medium-resolution spectra, a joint study was made for six early K-type contact binary candidates selected unbiasedly with orbital periods around 0.268 day. It
N.-P. Liu, S.-B. Qian, W.-P. Liao, Y. Huang, Z.-L. Yuan   +4 more
doaj   +1 more source

Analysing the significance of small conformational changes and low occupancy states in serial crystallographic data

FEBS Open Bio, EarlyView.
This protocol paper outlines methods to establish the success of a time‐resolved serial crystallographic experiment, by means of statistical analysis of timepoint data in reciprocal space and models in real space. We show how to amplify the signal from excited states to visualise structural changes in successful experiments.
Jake Hill, Yelyzaveta Pulnova, Elke De Zitter, Helen M. Ginn, Briony A. Yorke   +4 more
wiley   +1 more source

Fundamental Parameters for Totally Eclipsing Contact Binaries Observed by TESS

The Astrophysical Journal
Totally eclipsing contact binaries provide a unique opportunity to accurately determine mass ratios through photometric methods alone, eliminating the need for spectroscopic data.
Xu Ding, KaiFan Ji, ZhiMing Song, XueFen Tian, JinLiang Wang, ChuanJun Wang, QiYuan Cheng, JianPing Xiong   +7 more
doaj   +1 more source

Space-Based Photometry of Binary Stars: From Voyager to TESS

Universe, 2021
Binary stars are crucial laboratories for stellar physics, so have been photometric targets for space missions beginning with the very first orbiting telescope (OAO-2) launched in 1968.
John Southworth
doaj   +1 more source

Tracking Motor Progression and Device‐Aided Therapy Eligibility in Parkinson's Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To characterise the progression of motor symptoms and identify eligibility for device‐aided therapies in Parkinson's disease, using both the 5‐2‐1 criteria and a refined clinical definition, while examining differences across genetic subgroups.
David Ledingham, Sahana Sathyanarayana, Charlotte B. Stewart, Robyn Iredale, Victoria Foster, Debra Galley, Mark Baker, Nicola Pavese   +7 more
wiley   +1 more source

Can low metallicity binaries avoid merging?

, 2007
Rapid mass transfer in a binary system can drive the accreting star out of thermal equilibrium, causing it to expand. This can lead to a contact system, strong mass loss from the system and possibly merging of the two stars.
Cottaar, M., de Mink, S. E., Pols, O. R.
core   +1 more source

Detection of Contact Binary Candidates Observed By TESS Using the Autoencoder Neural Network

The Astronomical Journal
A contact binary may be the progenitor of a red nova that eventually produces a merger event and have a cut-off period of around 0.2 days. Therefore, a large number of contact binaries is needed to search for the progenitor of red novae and to study the ...
Xu Ding, ZhiMing Song, ChuanJun Wang, KaiFan Ji   +3 more
doaj   +1 more source

Prediction of Myasthenia Gravis Worsening: A Machine Learning Algorithm Using Wearables and Patient‐Reported Measures

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Myasthenia gravis (MG) is a rare disorder characterized by fluctuating muscle weakness with potential life‐threatening crises. Timely interventions may be delayed by limited access to care and fragmented documentation. Our objective was to develop predictive algorithms for MG deterioration using multimodal telemedicine data ...
Maike Stein, Haoqi Sun, Sophie Lehnerer, Lea Gerischer, Maximilian Mönch, Christian Meisel, Andreas Meisel, Pushpa Narayanaswami   +7 more
wiley   +1 more source

Twin Binaries: Studies of Stability, Mass Transfer, and Coalescence

, 2011
Motivated by suggestions that binaries with almost equal-mass components ("twins") play an important role in the formation of double neutron stars and may be rather abundant among binaries, we study the stability of synchronized close and contact ...
Belczynski, Bethe, Chandrasekhar, Chandrasekhar, D'souza, Dan, Eggleton, F. A. Rasio, Habets, Hachisu, Hillwig, Hillwig, Hut, J. C. Lombardi, Jacoby, K. Gearity, K. L. Dooley, Krumholz, Lee, Motl, Nice, Paczyiński, Pinsonneault, Pols, Rasio, Rasio, Santander-Garcia, Stairs, Thorsett, V. Kalogera, W. Holtzman, Wang, Webbink, Weisberg, Willems, Willems, Wong   +36 more
core   +1 more source

Tomographic Separation of Composite Spectra. IX. The Massive Close Binary HD 115071 [PDF]

, 2002
We present the first orbital elements for the massive close binary, HD 115071, a double-lined spectroscopic binary in a circular orbit with a period of 2.73135 +/- 0.00003 days.
C. Lloyd, Claret A., Cruz-Gonzalez C., D. J. Stickland, de Loore C., Douglas R. Gies, Harries T. J., Hilditch R. W., Howarth I. D., John H. Wise, Laura R. Penny, Lorenz R., Meurs E. J. A., Meynet G., Mochnacki S. W., Schaller G., Stickland D. J., Wade R. A.   +17 more
core   +2 more sources