Large-scale structural characteristics and photometry of NGC 3031 determined from equidensity curves

Hoegner, W.; Kadla, Z. I.; Richter, N.; Strugatskaya, A. A.

doi:10.1007/bf01001022

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1992

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“…M 31 Hoegner et al (1971), diamond is for Sandage et al (1969) and filled dots are for this work. Brandt et al (1972), open circles are for Hoegner et al (1971), crosses are for Markaryan et al (1962) and filled dots are for this work. …”

Section: Resultsmentioning

confidence: 99%

Surface Photometry of Galaxies. I. NGC 3379 and M 81

Tenjes¹

1992

Open Astronomy

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Abstract. Two-dimensional photographic surface photometry has been derived for the standard elliptical galaxy NGC 3379 in the Bcolour and for the spiral galaxy M 81 in the B -and U-colours. Galactic isophotes have been approximated by ellipses, and the major and minor axes profiles for the observed galaxies have been derived. The brightness profile in the EW-direction for NGC 3379 has been compared with the standard luminosity distribution of de Vaucouleurs and Capaccioli (1983). We find that our image processing system enables us to derive accurate results at least up to 1% from the sky level. Our results for the colour structure of M 81 indicate that the U-B colour index of the galaxy becomes bluer outwards. Isophotes of the colour index are similar to the isophotes of the B surface brightness.

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Section: Resultsmentioning

confidence: 99%

Surface Photometry of Galaxies. I. NGC 3379 and M 81

Tenjes¹

1992

Open Astronomy

View full text Add to dashboard Cite

show abstract

Large-scale structural characteristics and photometry of NGC 3031 determined from equidensity curves

Cited by 1 publication

References 2 publications

Surface Photometry of Galaxies. I. NGC 3379 and M 81

Surface Photometry of Galaxies. I. NGC 3379 and M 81

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