A0538-66 during the extended 'off' state: evidence for continuing mass motions
نویسندگان
چکیده
منابع مشابه
ROSAT observations of A0538-66 during quiescence
Wediscuss serendipitousROSATobservations of the Be transient A0538-66, which contains the fastest known accreting X-ray pulsar (69 ms). We show that this transient is detected several times during quiescence at a level of about 1034−35 erg s−1. Considering this low luminosity it is more likely that X-rays are produced by matter falling onto the neutron star magnetosphere, rather than onto the s...
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Introduction: Freezing of gait, a common PD motor symptom, could increase the risk of falling. This study aimed to investigate the clinimetric attributes of the Freezing of Gait Questionnaire (FOGQ) for people with Parkinson disease in the “off” state. Methods: A total of 115 patients with Parkinson disease (PD; mean age, 60.25 years) were included. Acceptability, internal consistency (by the ...
متن کاملAnalytical Dynamic Modelling of Heel-off and Toe-off Motions for a 2D Humanoid Robot
The main objective of this article is to optimize the walking pattern of a 2D humanoid robot with heel-off and toe-off motions in order to minimize the energy consumption and maximize the stability margin. To this end, at first, a gait planning method is introduced based on the ankle and hip joint position trajectories. Then, using these trajectories and the inverse kinematics, the position tra...
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We present a ∼5-yr optical light curve of the recurrent Be/X-ray transient A0538–66 obtained as a by-product of the MACHO Project. These data reveal both a long-term modulation at P = 420.8±0.8 d and a short-term modulation at 16.6510±0.0022 d which, within errors, confirms the previously found orbital period. Furthermore, the orbital activity is only seen at certain phases of the 421 d cycle s...
متن کاملanalytical dynamic modelling of heel-off and toe-off motions for a 2d humanoid robot
the main objective of this article is to optimize the walking pattern of a 2d humanoid robot with heel-off and toe-off motions in order to minimize the energy consumption and maximize the stability margin. to this end, at first, a gait planning method is introduced based on the ankle and hip joint position trajectories. then, using these trajectories and the inverse kinematics, the position tra...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 1984
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/210.4.855