The interstellar medium in the Seyfert galaxy NGC 7172

Details The interstellar medium in the Seyfert galaxy NGC 7172 The interstellar medium in the Seyfert galaxy NGC 7172

Sep 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995mnras.276..125a&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 276, Issue 1, pp. 125-132.

Astronomy and Astrophysics

Astronomy

4

Galaxies: Active, Galaxies: Individual: Ngc7172, Galaxies: Ism, Galaxies: Photometry, Galaxies: Seyfert, Galaxies: Structure

Scientific paper

We present aperture and surface photometry of the Seyfert galaxy NGC 7172, which is a member of the compact group HCG90, and has a prominent equatorial dust lane. We use the observed colour excess in the dust lane, obtained from broad-band B and V images, to estimate the neutral hydrogen content as M^totHI = 2.6x10^8 M_solar and log(M_HI / L_B) = -1.8. We analyse the flux from NGC7172 at various wavelengths and discuss the properties of the interstellar medium in the galaxy. Based on the results from surface photometry, and the properties of the interstellar medium, we conclude that the morphology of NGC7172 is of type S0-Sa.

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