publication . Article . Preprint . 1998

The Closest Damped Lyman Alpha System

Eric D. Miller; Patricia M. Knezek; Joel N. Bregman;
Open Access
  • Published: 17 Nov 1998
A difficulty of studying damped Lyman alpha systems is that they are distant, so one knows little about the interstellar medium of the galaxy. Here we report upon a damped Lyman alpha system in the nearby galaxy NGC 4203, which is so close (v_helio = 1117 km/s) and bright (B_o = 11.62) that its HI disk has been mapped. The absorption lines are detected against Ton 1480, which lies only 1.9' (12 h_50 kpc) from the center of NGC 4203. Observations were obtained with the Faint Object Spectrograph on HST (G270H grating) over the 2222-3277 Angstrom region with 200 km/s resolution. Low ionization lines of Fe, Mn, and Mg were detected, leading to metallicities of -2.29...
Persistent Identifiers
free text keywords: Space and Planetary Science, Astronomy and Astrophysics, Faint Object Spectrograph, Astronomy, Physics, Velocity dispersion, Astrophysics, Hubble sequence, symbols.namesake, symbols, Interstellar medium, Absorption spectroscopy, Metallicity, Angular velocity, Galaxy
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