The Interstellar Line of Sight to the Interacting Galaxy NGC 5195
The Interstellar Line of Sight to the Interacting Galaxy NGC 5195
We present moderately-high resolution echelle observations of the nucleus of NGC 5195, the line of sight to which samples intervening interstellar material associated with the outer spiral arm of M51. Our spectra reveal absorption from interstellar Na I, K I, Ca II, and CH+, and from a number of diffuse …