Notes on the observation and reduction of UGC 8700
Observations
Observational parameters at full resolution (see also
here for more information).
UGC |
Bandwidth (MHz) |
Number of channels |
Central velocity of spectral band (km/s) |
channel separation (km/s) |
Synthesized beam full resolution (arcsec) |
R.m.s. noise of cleaned full resolution maps (mJy/beam) |
8700 |
4.96 |
127 |
2550 |
8.31 |
16.9 x 10.7 |
0.67 |
For more information on the quality of the observations, click here
(User ID = anonymous, no Password). This hyper-link gives access to the
NFRA database.
Reduction uv-plane
- Quality Fourier-transformed data
(= channel maps): reasonable
- Notes on "dirty" channel maps: The phase is unstable over 12h observation. It causes the problem that there are still rings around the positions of galaxies after clean. To solve the problem selfcal is done for continuum data and copy the time dependent corrections to all 1-128 channels
- Internal notes for the data-manager
Reduction image-plane
- Quality "cleaned" channel maps: reasonable
- Notes on "cleaned" channel maps:
- Internal notes for the data-manager