Search Publications
Star Formation and Tidal Encounters with the Low Surface Brightness Galaxy UGC 12695 and Companions
McGaugh, S. S.; O'Neil, K.; Verheijen, M. A. W.
We present VLA H I observations of the low surface brightness (LSB) galaxy UGC 12695 and its two companions, UGC 12687 and a newly discovered dwarf galaxy 2333+1234. UGC 12695 shows solid-body rotation but has a very lopsided morphology of the H I disk, with the majority of the H I lying in the southern arm of the galaxy. The H I column density di…
A Color Analysis of the NICMOS Parallel Image Archive
Schneider, Glenn; Rieke, Marcia J.; Thompson, Rodger I. +2 more
We present a photometric analysis of all high Galactic latitude (|b|>20deg) broadband parallel images taken by the Near-Infrared Camera and Multi-Object Spectrometer instrument of the Hubble Space Telescope during its initial lifetime in HST Cycle 7. These images, taken through the F110W and F160W filters, reach a mean 3 σ limiting m…
Search for Proton Aurora and Ambient Hydrogen on Io
Trafton, L. M.
A search was conducted using the Hubble Space Telescope (HST) Goddard High Resolution Spectrograph (GHRS) in 1994 August for Iogenic H Lyα emission predicted from electron capture by precipitating trapped magnetospheric protons. The Doppler-shifted diffusely reflected solar Lyα component was detected in the combined high-resolution spectra, partly…
A Search for Extended Line Emission from Broad Absorption Line QSOS
Kriss, Gerard A.; Tsvetanov, Zlatan; Telfer, Randal C.
We have obtained Hubble Space Telescope NICMOS snapshot images of 10 broad absorption line (BAL) QSOs and four radio-quiet non-BAL QSOs to search for extended narrow-line regions. For each object, we obtained an image in the F160W filter and a narrowband image in either Hα, Hβ, or [O II]. We find no detections of extended narrow-line emission in t…