... 8.7 Fluxes and Standard Magnitudes . Table 8.1: Conversion from STMAG to Johnson UBVRI and Cousins RI.. ... The magnitude of an object can be determined using the photometric zero-point keyword PHOTZPT as . ...
... Output Units: also one of the options. Input Flux or Magnitude Value: the input value of the flux or magnitude. ... Unit conversion between magnitude and fluxes, and vice versa, requires information on the magnitude zero-point value and on the ...
... 9.04] The Hubble Deep Field: Number Counts, Color-Magnitude and Color-Color Diagrams. ... background and the lack of the atmospheric blurring, the HDF images reach limiting AB magnitudes of 28.9, 29.5, 30.0 and 29.3 ...
... The difference between models becomes more evident at fainter magnitudes, until it reaches the very faint magnitude limit where galaxy sizes converge to very small values. ...
... Table 7.2: Approx. PSF Subtraction Artifact Magnitudes and Magnitude Limits. ... magnitudes fainter than the PSF of the bright object, so that it may be very ... magnitude of "star-like" artifacts remaining in the subtracted image, as a function ...