Summary:

- There are a total of 405 sources.
- File names reflect the Galactic coordinates of the sources (l_b.dat)
- First line of each file is a header containing
- l (deg), b (deg), Tbg (K)

- Each file has 7 columns:
- LSR velocity (km/s)
- T_OFF (K) - Average emission brightness temp. in the annulus
- T_ON (K) - Average on-source brightness temperature
- exp(-tau) - Optical depth
- dT_OFF (K) - Uncertainty in T_OFF. Given by (annulus RMS)/(# beams in annulus)
- dT_ON (K) - Uncertainty in T_ON. Given by annulus RMS.
- dexp(-tau) - Uncertainty in optical depth. Analytically calculated from dT_OFF and dT_ON

- For a detailed description of the spectra extraction and error calculations please see my thesis.

References:

- Strasser, S.T., Taylor, A.R., "1420 MHz Continuum Absorption Towards Extragalactic
Sources in the Galactic Plane" (2003), ApJ, 603, 560.

DOWNLOAD current PDF version. - Strasser. S.T., MSc Thesis (2002), University of Calgary.

DOWNLOAD postscript version. - Strasser, S.T., Taylor, A.R. (2002), ASP Conference Series, 276, 145.
- Taylor, Gibson, S. J., Peracaula, M., Martin, P. G., Landecker, T. L., Brunt, C. M., Dewdney, P. E., Dougherty, S. M., Gray, A. D., Higgs, L. A., Kerton, C. R., Knee, L. B. G., Kothes, R., Purton, C. R., Uyaniker, B., Wallace, B. J., Willis, A. G., Durand, D., "The Canadian Galactic Plane Survey" (2003), AJ, 125, 3145.

DOWNLOAD DATA here. Please cite first and/or second Reference if you use the spectra.

Simon Strasser Last modified: Mon Jun 14 13:13:11 CDT 2004