README web version of /home/usg/OPS/MTS/readme_xml/readme_77020300

Principal Investigator Email Address

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giannini@mporzio.astro.it
```

Estimated Total Execution Time (hours, including overheads)

```
04:59:30
```

General Description

We use SINFONI-SPIFFI to obtain maps of the atomic and molecular excitation
 in one bow-shock at the apex of a protostellar jet (RCrA-HH99). This object has
 been already studied in detail by our group and shows copious H_2 and [FeII] emission,
 testifying that strong gradients of the physical conditions occur along the bow
 structure. To comprehensively analyse such variations, we intend now to obtain spectral
 images in J,H and K bands. Ratios of selected [FeII] and H_2 lines will allow us
 to map the atomic gas density and extinction along with the H_2 temperature and
 column density. Velocity maps will be also obtained by observing brigth lines at
 adequate spectral resolution (about 3000).
The SINFONI field of view of 8X8 arcsec^2 is well suited to cover the head of the
 bow and one of the wings.The achieved spatial resolution of 250 mas, will allows
 us to disentagle regions with size of the order of 30AU.  In J band the sensitivity
 limit is set by the relatively faint H_2 lines (e.g.4-2S(5) at 1.226 micron) whose
 flux, (measured with low-resolution spectroscopy) is about 10^-16 erg s^-1 cm^-2
 arcsec^-2.

In H band, our primary targets are [FeII] lines, to probe the electron
density (e.g.1.53 micron) and measure the shock velocity (1.64micron). We intend
 to reach a SNR/pixel of 10 for the 1.53micron line and 100 at 1.644 micron, which
 is mandatory to resolve the line profile. In K band, we request to observe low excitation,
 bright H_2 lines, e.g. 1-0S(1) at 2.122 micron.

Waiver Requests

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No Waiver Request was submitted
```

Critical Observing Condition Constraints

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no constraints
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Time-Critical Aspects

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no time-critical aspects
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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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Source(s) of Pre-imaging

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Pre-imaging sources not listed above

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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 ?

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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?

```
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 indicate the magnitude of the brightest object in the field in each SINFONI OB?

```
N/A
```

If you are using the AO: Did you indicate for every OB the magnitude of the guide star, and its distance to the target (if any)?

```
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?

Did you make really sure that none of your OBs ever saturates the detector?

If you are using the AO: did you enter the correct Strehl Ratio (on-axis, K-band) AND the seeing value in the constraint set?

```
N/A
```

Last creation of page: Tue Oct 6 15:40:12 2009
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