README web version of /home/usg/OPS/MTS/readme_xml/readme_81072300

Principal Investigator Email Address

```
kw113@star.le.ac.uk
```

Estimated Total Execution Time (hours, including overheads)

```
3.5 hrs
```

General Description

This run is aimed at deep spectroscopy of the host galaxy of GRB 060218.

The aim is to detect the faint emission features produced by Wolf-Rayet stars in
 this
host. These features we expect to find around 4842 A (at the redshift of the 
galaxy), which is why we pick the 600B grism on the blue-sensitive FORS1.
This is interesting, as this host has an extrenmely low metallicity, at which one
 would not expect to find large numbers of WR stars. However, the evolution mechanism
 that led to the GRB should also produce an over-abundance of WR stars, which we
 aim to measure.

The lines we look for are faint, so we need to go deep. Unfortunately the target
 is not 
visible for long at low airmass from Paranal. However, the 3.5 hours total of the
 OBs in this run should allow us to set a decent limit on the WR star population
 also at slighty adverse conditions, which is why we left the observing constraints
 relatively wide.

Waiver Requests

```
None
```

Critical Observing Condition Constraints

```
none
```

Time-Critical Aspects

```
none
```

Special Execution Requirements

```
none
```

Special Calibration Information

```
standard calibrations will suffice
```

ToO Information

```
n/a
```

ToO Activators List

```
n/a
```

Is this a Pre-imaging run ?

```
false
```

Pre-imaging Requirements

```
n/a
```

Source(s) of Pre-imaging

---(Empty)---

Pre-imaging sources not listed above

---(Empty)---

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 ?

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
```

If you have prepared your finding charts with tools other than FIMS, do they comply with the specifications on the FORS1 Phase 2 web page ?

Last creation of page: Tue Oct 6 15:40:25 2009
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