Using the 2004 Venus transit of the Sun to constrain a semiempirical point-spread function (PSF) for the TRACE EUV solar telescope, we have measured the effect of stray light in that telescope. We find that 43 % of 171 Å EUV light that enters TRACE is scattered, either through diffraction off the entrance filter grid or through other nonspecular effects. We carry this result forward, via known-PSF deconvolution of TRACE images, to identify its effect on analysis of TRACE data. Known-PSF deconvolution by this derived PSF greatly reduces the effect of visible haze in the TRACE 171 Å images, enhances bright features, and reveals that the smooth background component of the corona is considerably less bright (and hence more rarefied) than might ...
International audienceRemote observations of the solar photospheric light scattered by electrons (th...
Aims. Within the quiet Sun corona imaged at 1 MK, much of the field of view consists of diffuse emis...
We analyze significant X-ray, EUV, and UV emission coming from the dark side of Venus observed with ...
Coronal holes are the source regions of the fast solar wind, which fills most of the solar system vo...
Context. Recently measured straylight point spread functions (PSFs) in Hinode/SOT make gra...
Context. A long-standing issue in solar ground-based observations has been the contamination of data...
Context. Recently measured straylight point spread functions (PSFs) in Hinode/SOT make granulation c...
The modeling of the scattering phenomena for the multielement telescope for imaging and spectroscopy...
Abstract. We perform an analysis of the TRACE telescope blur from EUV images. Theblur pattern is dis...
Aims. We present a point spread function (PSF) for the Helioseismic and Magnetic Imager (HMI) onboar...
The SPIRIT telescope aboard the CORONAS-F satellite (in orbit from 26 July 2001 to 5 December 2005)...
International audienceWe consider the best today available observations of the Sun free of turbulent...
Abstract. We perform an analysis of the TRACE telescope blur from EUV images. The blur pattern is di...
The METIS coronagraph on board the Solar Orbiter mission will have the unique opportunity of observi...
Aims. We investigate the combined point spread function (PSF) of the Broadband Filter Imager (BFI) ...
International audienceRemote observations of the solar photospheric light scattered by electrons (th...
Aims. Within the quiet Sun corona imaged at 1 MK, much of the field of view consists of diffuse emis...
We analyze significant X-ray, EUV, and UV emission coming from the dark side of Venus observed with ...
Coronal holes are the source regions of the fast solar wind, which fills most of the solar system vo...
Context. Recently measured straylight point spread functions (PSFs) in Hinode/SOT make gra...
Context. A long-standing issue in solar ground-based observations has been the contamination of data...
Context. Recently measured straylight point spread functions (PSFs) in Hinode/SOT make granulation c...
The modeling of the scattering phenomena for the multielement telescope for imaging and spectroscopy...
Abstract. We perform an analysis of the TRACE telescope blur from EUV images. Theblur pattern is dis...
Aims. We present a point spread function (PSF) for the Helioseismic and Magnetic Imager (HMI) onboar...
The SPIRIT telescope aboard the CORONAS-F satellite (in orbit from 26 July 2001 to 5 December 2005)...
International audienceWe consider the best today available observations of the Sun free of turbulent...
Abstract. We perform an analysis of the TRACE telescope blur from EUV images. The blur pattern is di...
The METIS coronagraph on board the Solar Orbiter mission will have the unique opportunity of observi...
Aims. We investigate the combined point spread function (PSF) of the Broadband Filter Imager (BFI) ...
International audienceRemote observations of the solar photospheric light scattered by electrons (th...
Aims. Within the quiet Sun corona imaged at 1 MK, much of the field of view consists of diffuse emis...
We analyze significant X-ray, EUV, and UV emission coming from the dark side of Venus observed with ...