Results 201 to 210 of about 9,262 (225)
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Astrophysics and Space Science, 1990
Complete infraredJ andK light curves of the RS CVn system XY UMa have been obtained at the beginning of 1989. We point out some interesting morphological changes observed in these light curves.
M. J. Ar�valo, C. L�zaro
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Complete infraredJ andK light curves of the RS CVn system XY UMa have been obtained at the beginning of 1989. We point out some interesting morphological changes observed in these light curves.
M. J. Ar�valo, C. L�zaro
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Saao standards for infrared photometry
Astrophysics and Space Science, 1995I discuss the Infrared standards used at the South African Astronomical Observatory and their comparisons to the other Southern hemisphere Infrared standard systems. The new faint standards suitable for Infrared arrays are also discussed.
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The accuracy of infrared photometry with arrays
Publications of the Astronomical Society of the Pacific, 1991The photometric accuracy and repeatability of an InSb array in the infrared camera IRCAM is investigated. Measurements of standard stars are described; these were made using the United Kingdom Infrared 3.8-m Telescope (UKIRT) over five nights in May 1988, as part of an observational program on globular clusters. Observations were made at wavelengths of
M. D. Guarnieri +2 more
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Astrophysics, 1987
The results of UBVRJHKLM photometry of FG Sge made during 1985 are discussed. It follows from analysis of the observations that the spectral class of FG Sge in 1985 corresponded to G(1 +/- 0.5)I; for r = 4.1 kpc, the radius of the star is 95R/sub circle/ and L = 8.9 x 10/sup 3/L/sub circle/
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The results of UBVRJHKLM photometry of FG Sge made during 1985 are discussed. It follows from analysis of the observations that the spectral class of FG Sge in 1985 corresponded to G(1 +/- 0.5)I; for r = 4.1 kpc, the radius of the star is 95R/sub circle/ and L = 8.9 x 10/sup 3/L/sub circle/
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The Rise and Improvement of Infrared Photometry
2011Broad-band ground-based infrared photometry has been carried on ever since Harold Johnson adopted wide-band filters that only loosely matched the Earth’s atmospheric windows. Here we describe the “evolution” of filters to produce improved precision, and suggest why it has taken so long to reach the high precision that this spectral region can provide ...
E. F. Milone, Andrew T. Young
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Infrared photometry and polarimetry of blazars
2019A sample of blazars has been studied with infrared photometry and polarimetry in the J,H & K wavebands, using the U.K.I.R.T. in Hawaii. The objects observed for this thesis are part of an ongoing monitoring programme, for which a total of 35 objects have now been studied, many for the first time with infrared polarimetry.
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Dust-corrected surface photometry of M 31 from Spitzer far-infrared observations
Astronomy and Astrophysics, 2010Elmo Tempel, Antti Tamm, P Tenjes
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The interstellar extinction and distance modulus to M10 from infrared photometry
Astrophysics and Space Science, 1990S Arribas, Caputo F
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Visible and infrared photometry of Kuiper Belt objects: searching for evidence of trends
Icarus, 2003Neil Mcbride, S F Green, J K Davies
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