Gumball, Gumball Database.
Gumball: The Database
This section presents a database for calibration spectra acquired with the Gumball for diverse instruments at CFHT. Since a large number of instrumental configurations is possible (e.g. different lamps, exposure times, slit widths, filters, CCDs etc can be used), it is quite possible that the specific calibration frame needed for your observations is not included in the actual database. Nevertheless, in such a case, the data presented can even be useful for line identification purpose for example. As such, this database should be used during the acquisition to verify that everything is fine with your calibration frames. Also, the complete list of spectral lines emitted by each source currently available in Gumball can also be found here.
1) This database is evolving! More data will be gathered in time
and included here. If you would like to see something useful for you that is
not found here, please contact us!
2) This database does not represent a calibration plan.
No data can be downloaded for your own calibration. It is only intended to
provide reference calibration frames for your observations or data
3) Due to a problem with the color palette in the Netscape Browser, the
quality of the black and white SAOimages presented in the database is
seriously altered. It is preferable to restart Netscape from a normal
window by typing netscape4 -install & This affects the way
Netscape looks (e.g. the cursor has to be in the window) but has no