README web version of /home/usg/OPS/MTS/readme_xml/readme_78035304

Principal Investigator Email Address

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

Estimated Total Execution Time (hours, including overheads)

```
6 hr
```

General Description

We are observing this galaxy via IFU using the HR blue and HR orange grisms
 to map the 2D distribution of helium, nitrogen and oxygen abundances via the temperature
 sensitive [OIII]4363/5007-A and [NII] 5754/6854-A ratios. The gas density will be
 mapped via the [SII]6716/6730 ratio. Spatial variations of the SFR and 2D distribution
 of Wolf-Rayet stars will also be mapped.

Critical lines to be reached at a good S/N>5 ratio per spaxel are [OIII]4363-A
 and [NII]5754-A to allow accurate per position temperatures and hence forbidden-line
 abundances to be derived.

Finding chart 2 and rotator angle: the rotator angles in the OBs have been modified
 to reflect the fact that Rotator Angle = PA. Here, the orientation was chosen so
 as to cover as much a portion of the galaxy as possible in one diagonal IFU dimension,
 and yet to allow several fibres to sample the target's "outflow" along the second
 diagonal dimension.

Waiver Requests

```
No Waiver Request was submitted
```

Critical Observing Condition Constraints

sky CLR, airm 2.0, seeing 0.8, illum 0.6, angle 60

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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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 ?

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 ?

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 suitable guide stars for all your OBs using Guidecam ?

```
N/A
```

Did you check that the chosen guide stars are suitable for all the offset positions and that they do not produce unacceptable vignetting of the field of view ?

```
N/A
```

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