Sentences with phrase «aperture photometry»

Observations of blue and red calibration standards measured at various positions on the detector (Bohlin et al. 2017) confirm the fidelity of the F814W flat, with aperture photometry consistent to ~ 1 % across the FOV, regardless of spectral type.

Following subtraction of the sky background from these frames, differential aperture photometry was carried out on Amalthea and a nearby field star.

Applying aperture photometry on the azimuthally averaged deconvolved PACS images and using a modified blackbody of the form Bν · λ − β, as expected for a grain emissivity Qabs ~ λ − β with β equal to 1.2 (representing amorphous carbon, Mennella et al. 1998), we derived a dust temperature between 108 ± 5 K at 20 ′ ′ and 40 ± 5 K at 180 ′ ′.

The photometry is obtained from onboard aperture photometry by means of large aperture masks, with a size and shape adapted to the large psf of its exoplanet focal plane, where 50 % of the flux is contained in an elliptical area of about 35 23.

Not exact matches

The VATT 1.8 m telescope's large aperture enables high - precision photometry even on the faintest EDEN / TS stars.