1999MNRAS.306..766V

1999MNRAS.306..766V - Mon. Not. R. Astron. Soc., 306, 766-778 (1999/July-2)

We present a new Eclipse Mapping method for reconstructing the properties of accretion discs in eclipsing catatclysmic variables. Physical Parameter Eclipse Mapping reconstructs spatially resolved maps of physical parameters such as temperatures and surface densities by fitting observed eclipse light curves at several wavelengths with the aid of a model describing the dependence of the disc spectrum on the physical parameters. Physical Parameter Eclipse Mapping has clear advantages over a classical approach for many applications. Most importantly, all of the available spectrophotometric data can be fitted simultaneously. The only drawback is the assumption of a physical model prior to the reconstructions. However, the method is very flexible in the choice of the spectral model, since the method itself does not depend on the choice. Furthermore, physical considerations, observations and experience will help determine the model to be used.

The analysis with synthetic data shows that reliable parameter distributions can be obtained if the reconstruction behaviour of the model used is well understood. This means that the reconstructions are only as good as the model allows. In ambiguous parameter regions the method can (by definition) not give us the correct answer. However, in ambiguous-free zones, we show that the method indeed gives us the correct answer.

Journal keyword(s): accretion, accretion discs - methods: data analysis - binaries: eclipsing - novae, cataclysmic variables

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag R	Mag I	Sp type	#ref 1850 - 2026	#notes
1	V* HT Cas	CV*	01 10 13.1213394144	+60 04 35.489642700			14.10			M5.5e	401	0

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*`SV SON 3343`**	`LAMOST J011013.16+600435.2`	`TIC 52861041`	`3XMM J011013.1+600435`
`AN 16.1943`	`2MASS J01101312+6004354`	*`V HT Cas`**	`AAVSO 0103+59`
`2E 301`	`1RXS J011013.6+600431`	`WEB 1208`	`Gaia DR3 426306363477869696`
`2E 0107.0+5948`	`SBC9 59`	`2XMM J011012.9+600435`	`Gaia DR2 426306363477869696`

`2E 301`	`2MASS J01101312+6004354`	`1RXS J011013.6+600431`	*`V HT Cas`**	`Gaia DR3 426306363477869696`
`Gaia DR2 426306363477869696`