README web version of /home/usg/OPS/MTS/readme_xml/readme_78068800

Principal Investigator Email Address

```
j.e.geach@durham.ac.uk
```

Estimated Total Execution Time (hours, including overheads)

```
17.8
```

General Description

An ISAAC survey of narrow-band selected H-alpha emitters at z=2.2 in the
 COSMOS field

This is a survey to perform follow-up near-IR spectroscopy on a sample of narrow-band
 selected Ha-emitters found in a  wide-field survey using WFCAM. The science goals
 are:

(a) to confirm the presence of the Ha line, and therefore measure redshift - thus
 confirming the narrow-band selection technique
(b) if possible to constrain [NII]/Ha in order to examine AGN/starburst dominance
(c) to measure the contamination rate from the redshifted [OIII]5007 line at z=3.23

We are using ISAAC in SW-LR mode, using a 1" slit, and the 2.2um grating. Each target
 requires ~3ksec 
of integration, an we achieve this with NDITxDIT = 1x205sec, and 6 AB/BA cycles.
 
We aquire on reference stars, which have K > 17.5, and offset to the target,
 except in one case (WFNB-COSMOS-014) where the target is bright enough to directly
 acquire on. In most cases we keep the reference star on the slit to aid continuum
 identification in the 2d frames. We attach 2 finding charts for each target - one
 with a wide field of view, and another showing a zoomed view of the slit configuration.
 All images are K-band.

Waiver Requests

```
No Waiver Request was submitted
```

Critical Observing Condition Constraints

```
none
```

Time-Critical Aspects

```
none
```

Special Execution Requirements

```
none
```

Special Calibration Information

```
none
```

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 submitted OBs for standard stars, did you use the provided StandardStar templates ?

```
N/A
```

If you are using a specific offset pattern or position angle, did you check carefully the definition in the manual ?

If you are doing spectroscopy, did you draw the slit on the Finding Charts ?

Did you enter the magnitude of the brightest star in the field-of-view in the 'Instrument Comments' field of each OB ?

If you use the MoveToPixel acquisition, have you given clear instructions on the FC and in the OB comment section as to how the field should be centered ?

```
N/A
```

Last creation of page: Tue Oct 6 15:40:16 2009
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