Programs selected for FORS2 Science Verification
Programs selected for FORS2 Science Verification
- Deep Imaging of the Cluster of Galaxies MS1008-1224(released)
- Near-IR Imaging of the NTT DF (released)
- Spectroscopy of High Redshift Galaxies (released)
- Spectroscopy of High-z Lensed QSOs (released)
- Abundance Measurements in Giant Ellipticals (data not science quality)
- H-alpha Rotation Curves of Dwarf Galaxies (data not science quality)
- Kinematics of previously microlensed stars in LM
- Ly-alpha emission at high redshift (notexecuted)
FORS2 Science Verification took placeduring February 28-March 9, 2000
(Due to poor weather, not all the SV programmes could be executed or resulted in science quality data)
FORS2 Science Verification Summary
Deep Imaging of the Clusterof Galaxies MS1008-1224
| Mode: | SR Imaging in U and Gunn z filters |
| ExpTime: | 6 hr (U) , 4 hr (z) |
| Conditions: | seeing < ~0.6", photometric |
| Objective:
|
Completion of the FORS1 SV program (The Cluster Deep Field). Search for High-z magnified galaxies via photometric redshifts (U through K) . |
| Coordinator: | P.Rosati |
| U-band imaging 100% COMPLETED z-band imaging 0% |
Near-IR Imaging of the NTTDF
| Target: | NTT Deep Field: RA= 12 , DEC = -7 |
| Mode: | SR Imaging in IF_915 and Gunn z filters |
| ExpTime: | 5hr (915), 4hr (z) |
| Conditions: | grey, photometric, seeing <~0.8" |
| Objective: | Completion of deep multicolor survey of the NDF aimed at photo-zsearch for distant galaxies. |
| Coordinator: | S.Cristiani/S.Arnouts |
| Very good seeing data 100% COMPLETED |
Spectroscopy of High RedshiftGalaxies
| Target: | NTT Deep Field: RA= 12 , DEC = -7 |
| Mode: | MOS + Grism_R150 |
| ExpTime: | 5 hr x 1 mask |
| Conditions: | dark, seeing <~ 1" |
| Objective: | Distant, photo-z selected galaxies to I(AB)~25 from public NTT data. |
| Coordinator: | S.Cristiani/S.Arnouts |
| Over 5hrs obtained in good seeing 100% COMPLETED |
| DataRelease | RAW/REDUCED |
Spectroscopy of High-z LensedQSOs
| Target: | RX J0911.4+0551 (quadrupole quasar) |
| Mode: | MOS in HR mode (0.1"/pixel) |
| ExpTime: | 1 hr |
| Conditions: | dark, photometric, excellent seeing ( <0.5") |
| Objective:
|
Redshift measurement of lensingelliptical galaxy (and cluster) which has escaped detection so far. |
| Coordinator: | C.Lidman/ P.Rosati |
| HR MOS spectrum: 100% COMPLETED in 1/2" seeing Including central elliptical and offset cluster |
| DataRelease | RAW/REDUCED |
H-alpha Rotation Curves ofDwarf Galaxies
| Targets: | NGC 2915: RA = 09 48 49,DEC = -76 41 00 NGC 5170: RA = 10 52 33,DEC = +07 32 30 |
| Mode: | LS + Grism_R600 |
| ExpTime: | 3 hr /target (Total = ~10 hrs) |
| Conditions: | Dark, seeing > 1" |
| Objective:
|
Measurement of rotation curves from H-alpha emission in dwarf darkmatter dominated galaxies to constrain the mass distribution at large radiiand probe the inner regions. |
| Coordinator: | R.Ibata/T.Broadhurst |
| NGC 2915 80% COMPLETED NGC 5170 60% COMPLETED |
Kinematics of Previously MicrolensedStars in LMC
| Targets: | ~20 stars with V=20-21 |
| Mode: | Grism_R600 |
| ExpTime: | (900-2000)s/object (Total > 10 hr) |
| Conditions: | seeing <~ 1", grey |
| Objective: | Measurement of velocities of previously microlensed stars in the LMCto test LMC self-lensing models (and hence the nature of the MACHOs). Goal is to obtain S/N~10 spectra with ~10 km/s accuracy for at least 10 targets. |
| Coordinator: | R.Ibata/E.Tolstoy |
| Pre-imaging in good seeing obtained Spectra for high priority targetsobtained Spectra under evaluation by R.Ibata |
Abundance Measurements in GiantEllipticals
| Targets: | NCG 4472: RA= 12 28 46.8, DEC = +08 00 02 Globular Clusters, Dwarf Galaxies, Halo |
| Mode: | MOS/LS + Grism_600B |
| ExpTime: | 3 hr /target (Total = ~12 hrs incl. overhead) |
| Conditions: | dark-grey, seeing < 0.8" (GC), >~ 1" otherwise |
| Objective: | Abundance determination of and comparison between the globular clusters and the dwarf galaxies surrounding NGC4472 + its halo light at3 Reff. |
| Coordinator: | M.Kissler |
| LS spectra on 2 dwarf pairs: 100% COMPLETED MOS on globulars: ~60% COMPLETED LS on main galaxy: 0% |
Ly-alpha emissionat high redshift
| Target: | 0943-242: RA = 09:47:49.71, DEC = -24:42:44.0 |
| Mode: | Custom narrow band filter (FW=7A) |
| ExpTime: | 36hr |
| Conditions: | dark, photometric, poor seeing ( > 1") |
| Objective:
|
A narrow band search for Lyman alpha emission from large scale structure centered on a powerful radio galaxy at z = 2.9(previously selected damped Ly-alpha system could not be confirmed). |
| Coordinator: | M.Rauch |
| Feasibility caveats 0% COMPLETED |