[asac][almanews] ALMA Memo 492 Released

[Stacy Oliver]

ALMA MEMO #492 

ALMA Calibration - Example of Scientific Impact 


Chris Carilli
National Radio Astronomy Observatory

2004-05-04 


Keywords: ALMA calibration, gallaxies - star forming, high redshift,
dust - spectral energy distribution

An example of the scientific impact of band-to-band calibration errors
for ALMA is presented. The specific example entails constraining the
temperature of a modified black body at high redshift. This experiment
is one of the key goals in the study of the dust obscured star formation
history of the universe. We find that 3% calibration errors between 250
and 350 GHz will constrain (at 3σ ) the temperature of a warm (~50 K)
dust compnent to only 20°, while 10% calibration errors between 250 and
650 GHz provide a 3σ contraint of 10°. 

View a pdf version of ALMA Memo #492. 

http://www.alma.nrao.edu/memos/html-memos/alma492/memo492.pdf

 

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