Some remarks on triples

Frei, Armin

doi:10.1007/bf01110118

Cited by 6 publications

(4 citation statements)

References 2 publications

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“…These lters are centered at 500, 650 and 820 nm, respectively. See Frei and Gunn (1994) for a detailed description of the photometric system we used, including the system response curves (including the e ects of atmospheric absorption, two re ections from aluminum, the transmission functions of lters and optics, and the quantum e ciency of the detector). The 7.5 cm square lters were placed in front of the camera optics to avoid problems with re ection.…”

Section: { 4 {mentioning

confidence: 99%

“…These lters are centered at 450 and 650 nm. Frei and Gunn (1994) give system response curves representing the system as we used it.…”

Section: { 9 {mentioning

confidence: 99%

“…Although the program does not perform { 13 { all necessary steps automatically, it was very useful for the purpose of cleaning these images. Details of this procedure are to be found in a separate paper (Frei, 1995b).…”

Section: Star Removalmentioning

confidence: 99%

“…Moreover, observations of standard stars were not available for all nights at Lowell. In a separate paper (Frei and Gunn, 1994), we derived transformation relations for colors of galaxies among ve di erent photometric systems. These were used to calculate magnitudes in the given lter systems from data available in the Third Reference Catalog of Bright Galaxies (de Vaucouleurs et al, 1991, RC3).…”

Section: Star Removalmentioning

confidence: 99%

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A Catalog of Digital Images of 113 Nearby Galaxies

Frei¹,

Guhathakurta²,

Gunn³

1996

The Astronomical Journal

179

304

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We present a digital catalog of images of 113 galaxies in this paper. These galaxies are all nearby, bright, large and well resolved. All images were recorded with charge coupled devices (CCDs) at the Palomar Observatory with the 1.5 meter telescope and at the Lowell Observatory with the 1.1 meter telescope. At Palomar we used the Thuan--Gunn g, r and i photometric bands to take 3 images each of 31 spiral galaxies; at Lowell we used the B_J and R bands (2 images per galaxy) of the photometric system by Gullixson et al. (1995) to observe 82 spirals and ellipticals. The galaxies were selected to span the Hubble classification classes. All data are photometrically calibrated with foreground stars removed. Important data on these galaxies published in the "Third Reference Catalog of Bright Galaxies" (RC3) are recorded in the FITS file headers. All files are available through anonymous FTP from ftp://astro.princeton.edu/, through WWW at http://astro.princeton.edu/~frei/galaxy_catalog.html, and Princeton University Press will soon publish the data on CD-ROM.Comment: uuencoded compressed tar archive of postscript files (paper + 2 tables + 7 figures) Accepted for publication in the Astronomical Journa

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Section: { 4 {mentioning

confidence: 99%

“…These lters are centered at 450 and 650 nm. Frei and Gunn (1994) give system response curves representing the system as we used it.…”

Section: { 9 {mentioning

confidence: 99%

Section: Star Removalmentioning

confidence: 99%

Section: Star Removalmentioning

confidence: 99%

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