README web version of /home/usg/OPS/MTS/readme_xml/readme_76032400
Principal Investigator Email Address
Estimated Total Execution Time (hours, including overheads)
General Description
This is a long-slit spectroscopy programme aimed to measure the
kinematic signature (i.e. local minimum in the radial profile of the
Gauss-Hermite h4 moment) that a peanut-shaped bar produce in face-on
galaxies.
We plan to take:
1) 1x45min+3x40min LSS spectra along bar major axis with the galaxy
nucleus centered in the slit for the barred galaxies NGC98 and
NGC600
2) 1x45min+3x40min LSS spectra along the disk major axis with the
galaxy nucleus centered in the slit for the unbarred spiral
NGC1703, to be used as control object.
3) LSS spectra of 4 bright stars to be used as kinematical templates.
The position angle of the bar major axis for NGC98 (PA=32.2 deg) and
NGC600 (PA=22.1 deg) and the position angle of the disk major axis for
NGC 1703 (PA=148.8 deg) have been measured from available surface
photometry.
Obtaining the 4 spectra for each sample galaxy is crucial to get the
required SNR for fulfilling our scientific aim. Instead of having 2
spectra for 2 different galaxies, we need to have 4 spectra for the
same target. Therefore, if it is possible, all the OBs related to the
same galaxy have to be completed before selecting a new target from
this programme.
The offset for nodding target galaxies on the slit are specified in
the repeated spectra.
Spectra of kinematical template stars have to be obtained with the
slit oriented according to the parallacting angle.
Kinematical template stars are:
name alpha(2000.0) delta(2000.0) type B
--------- ------------- ------------- ------ ----
SAO113265 05:54:44.037 00:58:07.010 K0III 7.34
SAO131443 04:43:34.745 -08:47:39.540 G8III 7.62
SAO132480 05:43:09.319 -01:36:47.690 K4III 7.81
SAO146736 23:29:32.081 -04:31:57.890 K3IIIv 7.34
Please check that their spectra have high SNR but do not
saturate. Indeed exposure times have been estimated with ETC (v.3.0.4)
to be useful in a wide range of seeing, airmass, and lunar phase.
Waiver Requests
Critical Observing Condition Constraints
Time-Critical Aspects
Special Execution Requirements
Special Calibration Information
None. Only standard calibration are needed for LSS spectroscopy
(biases, screen flats, arc lamps, spectrophotometric standard stars).
ToO Information
ToO Activators List
Is this a Pre-imaging run ?
Pre-imaging Requirements
Source(s) of Pre-imaging
Pre-imaging sources not listed above
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 ?
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 ?
Have you included OBs for any calibrations that you need but which are
not part of the Calibration Plan ?
If you are observing Moving Targets, have you attached suitable ephemeris
files to your OBs?
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 ?
If you have prepared your finding charts with tools other than FIMS,
do they comply with the specifications on the FORS2 Phase 2 web page ?
Last creation of page: Tue Oct 6 15:40:09 2009
If you have comments, please contact usd-help@eso.org