Results 91 to 100 of about 873,650 (292)

Detection of calcium abundance stratification in Ap stars [PDF]

open access: yesSymposium - International Astronomical Union, 1994
We report the discovery of a systematic and large calcium abundance stratification in cold Ap stars. These detections are in very good agreement with diffusion theory and set stringent upper limits on turbulent processes.
openaire   +1 more source

Evaluation of Digital Technologies for Home‐Based Assessment in People With Amyotrophic Lateral Sclerosis

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Digital technologies hold promise for transforming healthcare by enhancing personalized treatments and offer valuable opportunities to improve patient care. Here, we evaluated several novel, self‐administered, home‐based, digital endpoints for their association with corresponding conventional standard clinical measures (primary) in ...
Arne Mueller   +14 more
wiley   +1 more source

TESS Light Curves of Two New Magnetic Cataclysmic Variables: An Asynchronous Polar at the Period Minimum and an Eclipsing System with a Large Spin-to-orbit Ratio

open access: yesThe Astrophysical Journal
A recent development in the study of magnetic cataclysmic variable stars (mCVs) has been the identification of asynchronously spinning mCVs with orbital periods
Colin Littlefield   +4 more
doaj   +1 more source

CP#AP Workshop 2007 [PDF]

open access: yes, 2008
Today, one of the greatest challenges concerning the Ap/Bp stars is to understand the origin of their slow rotation and their magnetic fields. The favoured hypothesis for the latter is the fossil field, which implies that the magnetic fields subsist ...
Landstreet, J. D.   +13 more
core  

Plasma EV Proteomics Identifies ECM Remodeling and Inflammatory Proteins LUM and C7 as Candidate Biomarkers in FSHD

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Facioscapulohumeral muscular dystrophy (FSHD) is one of the most debilitating and common muscular dystrophies. Despite its severity, no approved therapy exists for FSHD patients. However, several therapeutic candidates are currently under development, and some have recently entered clinical trials, marking the need for reliable ...
Mustafa Bilal Bayazit   +11 more
wiley   +1 more source

A Two‐Stage Questionnaire and Actigraphy Screening for iRBD in a Multicenter Retrospective Cohort

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Isolated rapid‐eye‐movement sleep behavior disorder is a prodromal marker of synucleinopathies. However, most cases remain undiagnosed due to the insufficient predictive value of questionnaires and limited access to confirmatory video‐polysomnography. We assessed a two‐stage screening strategy combining a brief questionnaire on rapid‐
Caleb A. Massimi   +17 more
wiley   +1 more source

Detecting magnetic fields in Ap/Bp stars observed with the K2 space mission

open access: yes, 2017
International audienceTo study the effect large-scale magnetic fields have on the interior of hot stars, we compiled a list of chemically peculiar Ap/Bp stars that were observed with K2 with the future goal of investigating their seismic properties ...
Buysschaert, B.   +4 more
core   +2 more sources

NutMaat: A Python Package for Stellar Spectral Classification on the MK System

open access: yesThe Astronomical Journal
Stellar spectral classification according to the Morgan–Keenan (MK) system remains fundamental to astrophysical studies, yet modern surveys require automated, scalable tools.
R. I. El-Kholy, Z. M. Hayman
doaj   +1 more source

Variability of the Ap Star HD9996

open access: yes, 2012
We present here new measurements of the longitudinal magnetic field (B_e) in the binary system HD9996, where the primary companion is an Ap star. Series of 63 B_e observations was obtained in years 1994-2011 with the 1m optical telescope of the Special Astrophysical Observatory (Russia).
Bychkov, V. D.   +3 more
openaire   +2 more sources

Ap stars periodicity (Catalano+, 2001)

open access: yes, 2001
New data on the periods of Ap stars with references are presented. 161 further stars are introduced for which a periodic variability has recently been discovered or it was known before but it was not reported in previous issues of this catalogue.
Renson, Pierre, Catalano, F. A.
core  

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