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The Multiphase Halo of NGC 891: WIYN H-alpha and BVI Imaging
J. Christopher Howk, Blair D. Savage
We present new, deep optical images (BVI+H-alpha) of the interstellar medium (ISM) far above the plane of NGC 891. These sub-arcsecond images give a direct visual view of two physi…
The Emergence of the Modern Universe: Tracing the Cosmic Web
J. M. Shull, B. D. Savage, J. A. Morse +8
This is the report of the Ultraviolet-Optical Working Group (UVOWG) commissioned by NASA to study the scientific rationale for new missions in ultraviolet/optical space astronomy a…
GHRS and ORFEUS-II Observations of the Highly Ionized Interstellar Medium Toward ESO141-055
Kenneth R. Sembach, Blair D. Savage, Mark Hurwitz
We present Goddard High Resolution Spectrograph and ORFEUS-II measurements of Si IV, CIV, N V, and O VI absorption in the interstellar medium of the Galactic disk and halo toward t…
Abundances and Physical Conditions in the Warm Neutral Medium Towards mu Columbae
J. Christopher Howk, Blair D. Savage, Dirk Fabian
We present ultraviolet interstellar absorption line measurements for the sightline towards the O9.5 V star mu Columbae obtained with the Goddard High Resolution Spectrograph (GHRS)…
A Search for Extraplanar Dust in Nearby Edge-On Spirals
J. Christopher Howk, Blair D. Savage
We present high resolution BV images of 12 edge-on spiral galaxies observed with the WIYN 3.5-m telescope. These images were obtained to search for extraplanar (|z| > 0.4 kpc) abso…