Principal Investigator Email Address
lmonaco@eso.org
Estimated Total Execution Time (hours, including overheads)
27
General Description
This is a simple survey program aimed at obtaining detailed chemical abundances for a set of 14 candidates metal poor giants stars in the Sagittarius dwarf spheroidal galaxy. Observing conditions are not critical as long as the target S/N is achieved. 12 targets have to be observed twice, 1 three times and 1 only one time (i.e. 28 OBs). Priorities are defined. Different exposures for the same target can be taken consecutively skipping the 2nd (and 3nd, if applicaple) acquisition, if permitted by the observing schedule. Whenever possible, we would prefer to have one target completed before starting a new one. Tow targets - SGR19003906-31072053 and SGR18553385-30052120 - have to be observed at a specific defined position angle due to the presence of a bright companion, please check the finding chart, coordinates may be accurate only within a few arcsecs in this cases. Other targets are observed in ELEV mode: companions are either faint or more than 6" (radius) away from the target. Target coordinates should be generally accurate, but please check always the provided finding charts. Note that due to the relative faintness (V~17) of the targets, DSS images were useles and most of the targets are obtained from VIMOS images.
Waiver Requests
A request for observing the following 4 target has been submitted and approved: Ra Dec Target 18 55 39.00 -30 27 04.00 SGRRGB-2300275 ADDI 18 53 36.00 -30 26 36.00 SGRRGB-3600436 ADDI 18 55 49.00 -30 03 49.00 SGR18554944-30034930 ADDI 19 06 51.00 -32 01 47.00 SGR19065147-32014723 ADDI DbaseId of corresponding OBs are: 3598nn, nn=38,58,62,63,65,67,68,70
Critical Observing Condition Constraints
bserving conditions are not critical as long as the target S/N is achieved.
Time-Critical Aspects
There are no time critical aspects
Special Execution Requirements
none
Special Calibration Information
none
ToO Information
N/A
ToO Activators List
N/A
Do all your OBs comply with the instrument-specific requirements listed on the instrument-specific Phase 2 web page ?
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 specified the S/N ratio at given wavelength in the User Comments field of each OB?
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 ?
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
If you need secondary guiding, are there suitable objects within 30 arcsec from your target ?
N/A