README web version of /home/usg/OPS/MTS/readme_xml/readme_77069400

Principal Investigator Email Address

```
skraus@mpifr-bonn.mpg.de
```

Estimated Total Execution Time (hours, including overheads)

```
6
```

General Description

"Probing the gas and dust environment of young outflow driving sources:
 Geometry of the flow launching region"

We aim to spatially resolve the outflow collimation region of young, outflow driving
 sources.
By using AMBER's medium resolution mode, we want to measure the visibility not only
 in the continuum, but also in the Brackett Gamma emission line at 2.166 micron.

As it is known for some objects in our sample (e.g. MWC 275) that the strength of
 these lines is variable with time, it is not predictable how strong the Brackett
 Gamma line will be during the observation.  Please record the data, independently
 of the strength of the emission line with respect to the continuum.

One source in our sample (M8E-IR=AFGL 2059=IRAS 18018-2426) is very faint at optical
 wavelengths.  We suggest to use the near-by star GSC S301203256747 (V=13.9, RA(J2000)=18
 04 55.65, DEC(J2000)=-24 26 27.0) for Coude Guiding.

Waiver Requests

```
No Waiver Request was submitted
```

Critical Observing Condition Constraints

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None
```

Time-Critical Aspects

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None
```

Special Execution Requirements

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None
```

Special Calibration Information

For the calibration, we suggest the following calibrators (as indicated
 in the science OBs):
SCI_V921Sco: CAL_HD159941
SCI_MWC275:  CAL_HD171960_1
SCI_M8E-IR:  CAL_HD171960_2

As alternative calibrators (at an later hour angle), we suggest:
SCI_V921Sco: CAL_HD163197
SCI_MWC275:  CAL_HD174774
SCI_M8E-IR:  CAL_HD175583

ToO Information

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None
```

ToO Activators List

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None
```

Is this a Pre-imaging run ?

```
false
```

Pre-imaging Requirements

```
None
```

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 ?

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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 indicate for each science star OB the corresponding calibrator star OB (and vice versa) in the 'Instrument Comments' field ?

If you use calibrator stars which are not in the CalVin database, did you specify their characteristics in the README file and in the OBs ?

```
N/A
```

Last creation of page: Tue Oct 6 15:40:14 2009
If you have comments, please contact usd-help@eso.org