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Related papers: Eclipse Mapping: Astrotomography of Accretion Disc…

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The eclipse mapping method is an inversion technique that makes use of the information contained in eclipse light curves to probe the structure, the spectrum and the time evolution of accretion discs. In this review I present the basics of…

Astrophysics · Physics 2007-05-23 Raymundo Baptista

The accretion disc eclipse mapping method is an astrotomographic inversion technique that makes use of the information contained in eclipse light curves to probe the structure, the spectrum and the time evolution of accretion discs in…

Astrophysics · Physics 2009-11-10 Raymundo Baptista

The tomographic method "Physical Parameter Eclipse Mapping" is a tool to reconstruct spatial distributions of physical parameters (like temperatures and surface densities) in accretion discs of cataclysmic variables. After summarizing the…

Astrophysics · Physics 2007-05-23 Sonja Vrielmann

Although flickering is one of the fundamental signatures of accretion, it is also the most poorly understood aspect of the accretion processes. A promising step towards a better undestanding of flickering consists in using the eclipse…

Astrophysics · Physics 2007-05-23 Raymundo Baptista , A. Bortoletto

We propose a new method, emission-line eclipse mapping, to map the velocity fields of an accretion disk in position space. Quiescent dwarf novae usually exhibit double-peaked emission line profiles because of disk rotation. Since a part of…

Astrophysics · Physics 2015-06-24 Makoto Makita , Shin Mineshige

Recent Spitzer infrared measurements of hot Jupiter eclipses suggest that eclipse mapping techniques could be used to spatially resolve the day-side photospheric emission of these planets using partial occultations. As a first step in this…

Astrophysics · Physics 2011-02-11 Emily Rauscher , Kristen Menou , Sara Seager , Drake Deming , James Y-K. Cho , Brad Hansen

High precision lightcurves combined with eclipse mapping techniques can reveal the horizontal and vertical structure of a planet's thermal emission and the dynamics of hot Jupiters. Someday, they even may reveal the surface maps of rocky…

Earth and Planetary Astrophysics · Physics 2023-05-03 Everett Schlawin , Ryan Challener , Megan Mansfield , Emily Rauscher , Arthur D. Adams , Jacob Lustig-Yaeger

We perform simulations in order to reveal the effect of observational and physical parameters on the reconstruction of a spiral structure in an accretion disk, using eclipse mapping techniques. We show that a model spiral structure is…

Astrophysics · Physics 2009-11-10 E. T. Harlaftis , R. Baptista , L. Morales-Rueda , T. R. Marsh , D. Steeghs

A review is given on aspects of indirect imaging techniques in X-ray binaries which are used as diagnostics tools for probing the X-ray dominated accretion disc physics. These techniques utilize observed properties such as the emission line…

Astrophysics · Physics 2007-05-23 Emilios T. Harlaftis

Eclipse mapping uses the shape of the eclipse of an exoplanet to measure its two-dimensional structure. Light curves are mostly composed of longitudinal information, with the latitudinal information only contained in the brief ingress and…

The accurate determination of the masses of cataclysmic variable stars is critical to our understanding of their origin, evolution and behaviour. Observations of cataclysmic variables also afford an excellent opportunity to constrain…

Astrophysics · Physics 2008-06-05 William James Feline

Mapping exoplanets across phases and during secondary eclipse is a powerful technique for characterizing Hot Jupiters in emission. Since these planets are expected to rotate about axes normal to their orbital planes, with rotation periods…

Earth and Planetary Astrophysics · Physics 2023-09-20 Arthur Adams , Emily Rauscher

We show how analysis of a quasar high-magnification microlensing event may be used to construct a map of the frequency-dependent surface brightness of the quasar accretion disk. The same procedure also allows determination of the disk…

Astrophysics · Physics 2009-10-31 Eric Agol , Julian Krolik

We apply a new method of eclipse mapping to the light curves of eclipsing polars. The technique aims to locate the bright emission associated with the accretion stream, using a technique that makes the fewest prior assumptions about the…

Astrophysics · Physics 2007-05-23 C. M. Bridge , Pasi Hakala , Mark Cropper , Gavin Ramsay

We propose an eclipsing light-curve diagnosis for black-hole accretion flows. When emission from an inner accretion disk around a black hole is occulted by a companion star, the observed light curve becomes asymmetric at ingress and egress…

Astrophysics · Physics 2015-06-24 Ken-ya Watarai , Rohta Takahashi , Jun Fukue

With a particular focus on Scipy's minimize function the eclipse mapping method is thoroughly researched and implemented utilizing Python and essential libraries. Many optimization techniques are used, including Sequential Least Squares…

Instrumentation and Methods for Astrophysics · Physics 2024-06-04 Anoop Kumar , Madan Mohan Tito Ayyalasomayajula , Dheerendra Panwar , Yeshwanth Vasa

Understanding how mass and angular momentum flow through accretion discs remains a fundamental unsolved problem in astrophysics. Accreting white dwarfs offer an ideal laboratory for addressing this question: their variability occurs on…

Motivated by the fact that the universe is dominated by dark matter and dark energy, we consider rotating black holes surrounded by perfect fluid dark matter and study the accretion process in thin disk around such black holes. Here, we are…

General Relativity and Quantum Cosmology · Physics 2023-03-09 Malihe Heydari-Fard , Sara Ghassemi Honarvar , Mohaddese Heydari-Fard

We present the first high time resolution light curves for six eclipses of the magnetic cataclysmic variable EP Dra, taken using the superconducting tunnel junction imager S-Cam2. The system shows a varying eclipse profile between…

We study black hole imaging in the context of geometrically thick accretion disks in Schwarzschild spacetime. By decomposing the emitting region into a set of one-dimensional luminous segments, each characterized by its inclination angle…

General Relativity and Quantum Cosmology · Physics 2025-12-16 Zi-Liang Wang
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