4 papers
The Wolf-Rayet counterpart of Cygnus X-3
M. H. van Kerkwijk, T. R. Geballe, D. L. King +2
We present orbital-phase resolved I and K-band spectroscopy of Cygnus X-3. All spectra show emission lines characteristic of Wolf-Rayet stars of the WN subclass. On time scales lon…
The chemical evolution of galaxies at high redshift
L. J. Smith, M. Pettini, D. L. King +1
Observations of absorption lines in the spectra of distant QSOs offer a new approach for tracking the evolution of normal galaxies from early epochs to the present day. The damped…
An Observational Limit on Circumstellar H-Alpha from Supernova 1994D
R. J. Cumming, P. Lundqvist, L. J. Smith +2
We searched for narrow H in a high-resolution spectrum of SN 1994D taken 10 days before maximum, and found none. We estimate the limit this places on the progenitor mass loss, a…
NGC 4526 gas, High Velocity Clouds, and Galactic Halo gas: the Interstellar Medium towards SN 1994D
D. L. King, G. Vladilo, K. Lipman +4
We present spectroscopic observations of supernova 1994D in NGC 4526, an S0 galaxy in the Virgo cluster 15 Mpc distant. The datasets consist of the interstellar Ca\II\ and Na\I…