Photographic surface photometry of the Milky Way. VII - High-resolution B surface photometry of the southern Milk Way

Details Photographic surface photometry of the Milky Way. VII - High-resolution B surface photometry of the southern Milk Way Photographic surface photometry of the Milky Way. VII - High-resolution B surface photometry of the southern Milk Way

Jan 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993a%26as...97..517k&link_type=abstract

Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 97, no. 2, p. 517-525.

Astronomy and Astrophysics

Astrophysics

11

Astronomical Photometry, Brightness Distribution, Hubble Constant, Milky Way Galaxy, Photographic Measurement, Photographic Plates, Galactic Structure, High Resolution, Southern Sky, Virgo Galactic Cluster

Scientific paper

This paper presents a B-band surface photometry of the Southern Milky Way. The resolution is 25 x 25 deg. The photometry is based on seven photographic plates, obtained with the Bochum Super-Wide-Angle Camera. The data processing was slightly modified. While the appearance of the Milky Way in the B-band is strongly affected by local dark clouds, B-V color maps give a good picture of large scale structures in the Galaxy. Preliminary analysis of our data gives as scale length of the disk h(R) = 5.4 +/- 0.5 kpc and vertically hz = 0.29 +/- 0.15 kpc (adopting Ro = 8 kpc). Comparing the surface brightness of the Milky Way disk directly with those of the brightest Virgo cluster Sb and Sc galaxies gives a Hubble constant H = 58 +/- 10 km/s per Mpc.

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