(no subject)

[doyle]

Spamming you all with what I do all day.


> pop 4, rxr 7060 7100, pm
POPped 4: full spectrum, dred 0.8
> rxr 7065 7075, pm

I'm analyzing the electromagnetic spectrum given off by a planetary nebula, creatively called M2-31. This is me pulling up the spectrum and restricting it to the bit I want to look at, which is 7065-7075 Angstroms (edging into infrared).

> xyv
XV: 7068.94E+00 YV: 2.08214E+03
+
XV: 7069.46E+00 YV: 1.71619E+03
+
XV: 7068.71E+00 YV: 1.34486E+03
+
XV: 7069.33E+00 YV: 1.33410E+03
+
XV: 7069.33E+00 YV: 1.32872E+03
+
XV: 7071.14E+00 YV: 7.09834E+02

I have to estimate the centre of the lines, how wide they are and the flux. That's all done from the XV stuff above. These estimates go into the Emission Line Fitting program:

> elfinp
ELFINP> ? c1:7068.94
ELFINP> ? c2:7069.46
ELFINP> ? w1:0.62
ELFINP> ? w2=w1
ELFINP> ? qelf
> elfopt


Number of non-linear variables: 4
VA04A MAXIMUM CHANGE DOES NOT ALTER FUNCTION

Theoretically, this should give me a good match to the graph on my screen. Or, since it;s an ELF program, Orlando Bloom. I'm easy either way.

Line Profile Centre Width Peak Flux Line Flux
1 1 7069.485 0.620 2.106E+04 1.390E+04
+/- nan nan NAN NAN
2 1 7069.498 0.620 -1.903E+04 -1.256E+04
+/- nan nan NAN NAN
3 1 6736.140 0.620 0.000E+00 0.000E+00
+/- nan nan NAN NAN
0(All errors are 68% confidence intervals)

Okay, so this run didn't actually work - it's producing 3 lines instead of two, and two of them don't have a positive flux. Got to try remodelling with three lines.

> elfpush

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[poisoninjest.livejournal.com]

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