README web version of /home/usg/OPS/MTS/readme_xml/readme_83027901

Principal Investigator Email Address

```
nneumaye@eso.org
```

Estimated Total Execution Time (hours, including overheads)

```
08:02:02.000
```

General Description

Our observations aim at resolving the nuclear star cluster in the bulgeless
 galaxy NGC 3621. This is the closest late type, bulgeless galaxy known to host both
 a nuclear star cluster and a confirmed AGN. The observations will yield a spatially
 resolved spectrum of this nuclear star cluster from which we will determine its
 stellar populations and kinematics. Modeling of these data will (1) strongly constrain
 the formation history for this NC, and (2) may well provide the first dynamical
 black hole mass measurement within a bulgeless galaxy.

We want to obtain SINFONI K-band imaging spectroscopy and NACO images using the
 NC as AO reference. The NIR data will be complemented by optical FLAMES/GIRAFFE-ARGUS
 data.


Target: Nuclear star cluster in NGC 3621
Rmag:   15.7 mag
B-R :    2.1 mag
Kmag:   13.3 mag
separation: target = NGS
FWHM:    approx. 0.1 arcsec

The telescope guide star (given in the OB) was chosen from the GSC. 
Its name,        coordinates and                  magnitude are:
GCS 0720600279 - RA 11:18:40.325 Dec -32:40:48.54 Rmag 11.43

Waiver Requests

A waiver request for execution of OBs longer than one hour
was submitted on Feb 4, 2009 and approved on Feb 6, 2009.

Critical Observing Condition Constraints

Very good seeing < 0.6"
Best possible spatial resolution is crucial for this programme.

Time-Critical Aspects

```
N/A
```

Special Execution Requirements

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N/A
```

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 ?

```
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 ?

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

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)?

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?

Last creation of page: Tue Oct 6 15:40:29 2009
If you have comments, please contact usd-help@eso.org