README web version of /home/usg/OPS/MTS/readme_xml/readme_75046400

Principal Investigator Email Address

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tkim@ast.cam.ac.uk
```

Estimated Total Execution Time (hours, including overheads)

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28
```

General Description

We aim at looking for signatures of HeII reionization in the spectra of
high redshift QSOs, such as changes in the absorption line widths arising 
from temperature fluctuations at 3.0 < z < 3.6. This project will provide
 
important additional observational constraints on when and how HI and HeII
reionization occurred and on the physical state of the intergalactic medium.
To achieve this goal, we want to obtain  high-resolution (R ~ 45,000),
high signal-to-noise (~40) spectra of 3 QSOs with emission redshifts z~3.7
with UVES/VLT. The spectra will cover the Lyman-alpha forest at 3.0 < z <
 3.6, 
the period in which HeII reionization is expected to occur.

Waiver Requests

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No Waiver Request was submitted
```

Critical Observing Condition Constraints

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N/A
```

Time-Critical Aspects

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N/A
```

Special Execution Requirements

Due to the proximity to Jupiter, the target Q1249-0159 can be best observed
 in
May and June, and the target Q1317-0507 earlier than August, according to the
ESO object visibility check.

Special Calibration Information

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N/A
```

ToO Information

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N/A
```

ToO Activators List

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N/A
```

Is this a Pre-imaging run ?

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false
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Pre-imaging Requirements

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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 ?

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N/A
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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 ?

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N/A
```

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

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N/A
```

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

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N/A
```

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

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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 ?

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N/A
```

If you need secondary guiding, are there suitable objects within 30 arcsec from your target ?

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N/A
```

Last creation of page: Tue Oct 6 15:40:07 2009
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