ISPI Filters

ISPI is offered with the broad band Y, J, H, Ks filters, as well as a set of narrow band filters. Basic data are given in the tables below. Filter scans are available for some of the filters here.

Fluxes, isophotal wavelengths, and isophotal frequencies for Vega have been determined by Tokunaga and Vacca for J, H, and K' filters which comprise part of the MKO/Gemini filter set. Copies of these filters were used in ISPI up until 2004B.

ISPI


Filter FWHM (Å) CWL (Å) Telescope Instrument Plot Data Comments
C IV 2.00 Víctor M. Blanco 4-meter Telescope ISPI ISPI Narrow Band Filters. Wavelengths @80% (micron): 2,0753 - 2,0892
Y 10381.00 Víctor M. Blanco 4-meter Telescope ISPI ISPI Broad Band Filter. Wavelengths @80% (micron): BW 0.1457mu
J 12500.00 Víctor M. Blanco 4-meter Telescope ISPI ISPI Broad Band Filter. Wavelengths @80% (micron): 1.176 - 1.322
H 16350.00 Víctor M. Blanco 4-meter Telescope ISPI ISPI Broad Band Filter. Wavelengths @80% (micron): 1.5005 - 1.7705
Cont-203 20336.00 Víctor M. Blanco 4-meter Telescope ISPI ISPI Narrow Band Filters. Wavelengths @80% (micron): 2,062 - 2,0400
He I 20618.00 Víctor M. Blanco 4-meter Telescope ISPI ISPI Narrow Band Filters. Wavelengths @80% (micron): 2,0545 - 2,0674
H2 21262.00 Víctor M. Blanco 4-meter Telescope ISPI ISPI Narrow Band Filters. Wavelengths @80% (micron): 2,125 - 2,146
Continuum, 2.14 mu 21462.00 Víctor M. Blanco 4-meter Telescope ISPI ISPI Narrow Band Filters. Wavelengths @80% (micron): 2,1385 - 2,1532
Ks 21500.00 Víctor M. Blanco 4-meter Telescope ISPI ISPI Broad Band Filter. Wavelengths @80% (micron): 1.9915 - 2.2955
Br gamma 21648.00 Víctor M. Blanco 4-meter Telescope ISPI ISPI Narrow Band Filters. Wavelengths @80% (micron): 2,1592 - 2,1738
He II 21911.00 Víctor M. Blanco 4-meter Telescope ISPI ISPI Narrow Band Filters. Wavelengths @80% (micron): 2,1845 - 2,1976
H2 & continuum 2.25 mu 22570.00 Víctor M. Blanco 4-meter Telescope ISPI ISPI Narrow Band Filters. Wavelengths @80% (micron): 2,2428 - 2,2618

February 12, 2007

Updated on July 8, 2021, 6:35 am