Evolution of the Reverse Shock Emission from SNR 1987A (2006)
Heng, Kevin, McCray, Richard, Zhekov, Svetozar A., Challis, Peter M., Chevalier, Roger A., Crotts, Arlin P. S., ...
We present new (2004 July) G750L and G140L Space Telescope Imaging Spectrograph (STIS) data of the H-alpha and Ly-alpha emission from supernova remnant (SNR) 1987A. With the aid of earlier data, from...
The Three-Dimensional Circumstellar Environment of SN 1987A (2005)
Sugerman, Ben E. K., Crotts, Arlin P. S., Kunkel, William E., Heathcote, Stephen R., Lawrence, Stephen S.
We present the detailed construction and analysis of the most complete map to date of the circumstellar environment around SN 1987A, using ground and space-based imaging from the past 16 years....
A New View of the Circumstellar Environment of SN 1987A (2005)
Sugerman, Ben E. K., Crotts, Arlin P. S., Kunkel, William E., Heathcote, Stephen R., Lawrence, Stephen S.
We summarize the analysis of a uniform set of both previously-known and newly-discovered scattered-light echoes, detected within 30" of SN 1987A in ten years of optical imaging, and with which we...
Evolution and Geometry of Hot Spots in Supernova Remnant 1987A (2002)
Sugerman, Ben E. K., Lawrence, Stephen S., Crotts, Arlin P. S., Bouchet, Patrice, Heathcote, Steve R.
We present ground-based near-infrared imaging and {\em HST} optical imaging and spectroscopy of the interaction between the ejecta of SN 1987A and its equatorial circumstellar ring. This interaction...
Hubble Space Telescope WFPC-2 Imaging of Cassiopeia A (2001)
Fesen, Robert A., Morse, Jon A., Chevalier, Roger A., Borkowski, Kazimierz J., Gerardy, Christopher L., Lawrence, Stephen S., ...
The young SNR Cassiopeia A was imaged with WFPC-2 through four filters selected to capture the complete velocity range of the remnant's main shell in several important emission lines. Primary lines...
Surface and catalytic studies of Ni-Cu and Ni-Ag systems /--Stephen S. Lawrence. (1989)
Lawrence, Stephen S., University Of Missouri--St. Louis.--Dept. Of Chemistry.
Typescript.