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Last Post 19 May 2017 01:23 PM by  Rafael Cirolini
Making a spatially resolved BPT
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Rafael Cirolini



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19 May 2017 01:23 PM
    Hello,

    I'm trying to make a spatially resolved BPT. The problem is that i need to make an "if" parameter to define a specific region. Something like that:

    mask=mask*0
    for i=0, size(f[*,0,0],/n_elements)-1, 1 do begin
    for j=0, size(f[0,*,0],/n_elements)-1, 1 do begin
    if alog10(OIII[i,j]/Hb[i,j]) gt 0.0 then begin
    mask[i,j]=1
    endif
    endfor
    endfor

    Those OIII and Hb are the y axis. The x axis is NII/Ha, so this parameter only includes one axis. This are emission lines that i have in data cube.
    This mask does a line "cut" in my diagram but i need to make that line become an curve somehow. More precisely i need 4 regions between this curves:

    x=findgen(135)*0.01-1.49
    y= 0.61/(x-0.05)+1.3

    x=findgen(175)*0.01-1.49
    y= 0.61/(x-0.47)+1.19

    x=findgen(94)*0.01-0.435
    y= 1.01 * x + 0.48

    I would appreciate any help to know how to declare those regions. Kinda lost right now.
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