Post on 05-Jan-2016
description
Planning Spectral Observations
Surface Brightness Masers - resolved
often at <1kpc HI absorption -
background 106K
Resolution Global? Fill in e.g. MERLIN?
Check archivesNGC4261 van Langevelde et al.
MERLIN archivewww.merlin.ac.uk/archive/
EVN archiveVL(B)A archivesvia respectiveweb pages
Line frequency, width, VVLSR,radLSR,rad
RFI avoidanceReceivers, filters & No. IF's available
Correlator capacity NchNpolNBNIF/ <t max
ResolutionHA coverage
Sensitivity How long?
Calibrators observe more than once! Delay Bandpass - bright! Fringe &/or phase Polarisation
leakage Polarisation angle
Can be the same source(s)
Ask advice!