README web version of /home/usg/OPS/MTS/readme_xml/readme_78024700

Principal Investigator Email Address

```
ygt@star.ucl.ac.uk
```

Estimated Total Execution Time (hours, including overheads)

```
11:59:56.000
```

General Description

IFU ARGUS mapping of weak optical recombination lines (ORLs) from CNONeMg
 ions in 3 Orion proplyds with the aim to derive per spaxel abundances from the ORLs
 and compare with the corresponding abundances derived from the stronger forbidden-lines
 (in LR mode).

The HR settings will allow us to compare the widths of the ORLs vis. the forbidden
 lines per spaxel. The ORLs are predicted to arise from cold (<1000K) plasma and
 should display narrower thermal widths than the forbidden lines emitted from the
 same ions.

Critical ORLs aimed to be mapped at S/N > 10 per spaxel per OB are the OII 4089,
 CII 4267-A (LR02) and OII 4649-A (LR03) lines. The Balmer discontinuity at 3646-A
 (LR01) is also needed at average S/N.

Coverage of all 3 proplyds should allow for a good comparative study. Formal priorities
 however are 1, 1 for TD and LV target OBs and 2 for target P OBs.

Waiver Requests

078.C-0247A.01.WAV submitted 27 Jul 2006, approved 28 Jul 2006:
Target change

Critical Observing Condition Constraints

For all LR OBs:
Sky transp = Clear, Seeing = 0.8, Airmass = 2.0, Illum = 1.0, Moon ang. dist. =
 50
For all HR OBs:
Sky transp = Clear, Seeing = 0.8, Airmass = 2.5, Illum = 1.0, Moon ang. dist. =
 50

Time-Critical Aspects

```
none
```

Special Execution Requirements

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Special Calibration Information

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ToO Information

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ToO Activators List

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Is this a Pre-imaging run ?

```
false
```

Pre-imaging Requirements

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Source(s) of Pre-imaging

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Pre-imaging sources not listed above

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Do all your OBs comply with the instrument-specific requirements listed on the instrument-specific Phase 2 web page ?

If this is a pre-imaging run, did you select PRE-IMAGING for the Observing Category for each Observing Template ?

```
N/A
```

Do all your finding charts comply with both the general and instrument-specific Phase 2 Web Pages ?

If you submitted OBs for standard stars, did you specify the magnitude and spectral type of all standard stars in the OBs ?

```
N/A
```

Have you included OBs for any calibrations that you need but which are not part of the Calibration Plan ?

```
N/A
```

If you are observing Moving Targets, have you attached suitable ephemeris files to your OBs?

```
N/A
```

If you have preferences which OBs should be executed first, did you make use of the User Priority field in the OBs ?

```
N/A
```

If this is a run that requires coordinated observations with other facilities, did you give proper instructions in the Time-Critical Aspects Section ?

```
N/A
```

Did you specify in your OBs the hour angle range for which your Target Setup files are valid ?

Did you specify in your OBs the magnitudes of FACBs and Guide Star for all your fields ?

Are the FACBs and Guide Star in the brightness ranges specified in the FLAMES manual ?

Did you enter the expected signal to noise in your OBs ?

Last creation of page: Tue Oct 6 15:40:15 2009
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