There?
The day was short! In the morning I tried to go to a hospital to get someone to see my allergic reaction ... after being sent to a third building DOWNTOWN (the hospital is at the uni-nord almost outside town ...) I gave up and went to the institute, asked the secretary to help me, who found out I was sent to a specialist who only could see me on monday ... if it was really serious, I'd be dead then ... I hope I never get really sick here!!!So, afternoon, more image selection and testing the new IRAF installation. No work on the simulations. But I'll describe them now, a bit!
So! They are an expansion from the simulations presented at Da Rocha and Mendes de Oliveira (2005).
Simulated images, with 3 cases.
1- 4 galaxies very close to each other, to see if any diffuse like component is "created".
2- a "extended galaxy" mimicking a diffuse intragroup component (IGL - Intragroup Light), with no galaxies, to see how well we can see it.
3- Both together, like a real case, to see how well we can distinguish them.
The diffuse component had 3 intensities and everything was exponential.
Now I'm checking 10 different intensities for the diffuse component (brighter and fainter) and also de Vaucouleurs profiles, to check if there's any difference.
I didn't check the profile in the "old" simulation because I did it during my thesis and there was no significant difference. But the OV_WAV got so many modifications and improovements that is really a different package from the one I used to the thesis ... so, we accepted the suggestion to test this.
Steps. Everything was modeled and subtracted and what was left modelled again, and so on. After that I pre-analyzed detecting which objects belong to the galaxies, which belong to the IGL to each frame, each pass (21 frames per profile type, 5 passes per frame, 2 different sky intensities ... 410 analysis :-) ).
Individual objects got reconstructed.
Next steps. Define components. Analyse radial profiles and light loss. Right this part of the paper.
That's basically it!
posted by Cris Da Rocha @ 9:01 PM
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