README web version of /home/usg/OPS/MTS/readme_xml/readme_77050900

Principal Investigator Email Address

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pasquali@mpia.de
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Estimated Total Execution Time (hours, including overheads)

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1.0
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General Description

APPLES1 is the smallest dwarf galaxy ever discovered, which is also isolated.
 It is at a distance of about 9 Mpc and has an absolute magnitude of -9.6 in the
 I band. Despite its spheroidal morphology (which is associated, in dwarf galaxies
 in the Local Group, with old stellar populations), APPLES1 is characterised by an
 intermediate-age (3 Gyr old) stellar content with a relatively on-going star formation,
 as revealed by the presence of OB stars. Its available FORS2 spectrum seems to rule
 out the existence of an old (10 Gyr) stellar population, which, on the contrary,
 is always present in the best-studied dwarf galaxies in the Local Group. The present
 observations are aimed to measure the integrated colours of APPLES1 over a larger
 baseline than its optical spectrum, and thus to put firm constraints on the presence
 (or absence) and the mass-fraction of an old stellar population, on the global star-formation
 history and total mass of APPLES1.

Waiver Requests

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No Waiver Request was submitted
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Critical Observing Condition Constraints

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None
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Time-Critical Aspects

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None
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Special Execution Requirements

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None
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Special Calibration Information

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None
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ToO Information

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None
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ToO Activators List

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None
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Is this a Pre-imaging run ?

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false
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Pre-imaging Requirements

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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 ?

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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
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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 have prepared your finding charts with tools other than FIMS, do they comply with the specifications on the FORS1 Phase 2 web page ?

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N/A
```

Last creation of page: Tue Oct 6 15:40:13 2009
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