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Swift J010902.6-723710 is a Be/X-ray binary system detected by the Swift Small Magellanic Cloud (SMC) Survey (S-CUBED). An X-ray outburst, detected on October 10, 2023, had characteristics of Type I and II outbursts. Proposed orbital period is 60.623 days. Companion star of the system is "B0-0.5 star of spectral class Ve".
GRB 221009A is only the seventh gamma-ray burst known to have generated these rings, [10] and as of March 2023, a record twenty X-ray afterglow rings had been identified around the burst, triple the previous record. [45] [10] The afterglow of GRB 221009A was the brightest ever recorded, beating the record of GRB 030329. [46]
A light ray is a line or curve that is perpendicular to the light's wavefronts (and is therefore collinear with the wave vector). A slightly more rigorous definition of a light ray follows from Fermat's principle, which states that the path taken between two points by a ray of light is the path that can be traversed in the least time. [1]
The principal ray or chief ray (sometimes known as the b ray) in an optical system is the meridional ray that starts at an edge of an object and passes through the center of the aperture stop. [5] [8] [7] The distance between the chief ray (or an extension of it for a virtual image) and the optical axis at an image location defines the size of ...
Ray diagram of Von Laue formulation. In physics, a Bragg plane is a plane in reciprocal space which bisects a reciprocal lattice vector, , at right angles. [1] The Bragg plane is defined as part of the Von Laue condition for diffraction peaks in x-ray diffraction crystallography.
Each optical element (surface, interface, mirror, or beam travel) is described by a 2 × 2 ray transfer matrix which operates on a vector describing an incoming light ray to calculate the outgoing ray. Multiplication of the successive matrices thus yields a concise ray transfer matrix describing the entire optical system.
On Thursday, Accenture Plc (NYSE:ACN) reported first-quarter fiscal 2025 sales of $17.69 billion compared with the analyst consensus estimate of $17.12 billion, up 9% year-over-year in U.S ...
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