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HI in the Dusty Elliptical Galaxy NGC 5266

  • R. Morganti (a1) (a2), A. Pizzella (a3), E. M. Sadler (a4) and F. Bertola (a5)

Abstract

Recent observations with the Australia Telescope Compact Array show that the elliptical galaxy NGC 5266 has a disk of neutral hydrogen extending to almost 10R e. This HI disk lies along the galaxy’s major axis, at right angles to the inner minor-axis dust lane. The geometry and kinematics of the gas will allow us to determine both the intrinsic shape of the stellar galaxy and the mass distribution. The mass-to-light ratio M/L B rises from about 2 in the central regions to ~12 at 9R e (H0 = 50km s−1 Mpc −1).

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