206 citations · 432 across the 9 of their papers we have counts for
9 papers
Properties of Ellipticity Correlation with Atmospheric Structure from Gemini South
S. Asztalos, W. H. de Vries, L. J Rosenberg +5
Cosmic shear holds great promise for a precision independent measurement of , the mass density of the universe relative to the critical density. The signal is expected to b…
The Near-Infrared Extinction Law in Regions of High Av
T. J. T. Moore, S. L. Lumsden, N. A. Ridge +1
We present a spectroscopic study of the shape of the dust-extinction law between 1.0 and 2.2um towards a set of nine ultracompact HII regions with Av > 15 mag. We find some evidenc…
Gemini Near Infrared Spectrograph Observations of a Red Star Forming Galaxy at z=2.225: Evidence for Shock-Ionization due to a Galactic Wind
P. G. van Dokkum, M. Kriek, B. Rodgers +2
Recent studies have shown that K-luminous galaxies at 2<z<2.5 have high Halpha line widths and high [NII]/Halpha ratios. If these lines arise from photo-ionization by massive stars…
Helium and Hydrogen Line Ratios and The Stellar Content of Compact HII Regions
S. L. Lumsden, P. J. Puxley, M. G. Hoare +2
We present observations and models of the behaviour of the HI and HeI lines between 1.6 and 2.2um in a small sample of compact HII regions. As in our previous papers on planetary n…
Near Infrared Spectra of Compact Planetary Nebulae
S. L. Lumsden, P. J. Puxley, M. G. Hoare
This paper continues our study of the behaviour of near infrared helium recombination lines in planetary nebula. We find that the 1.7007um 4^3D-3^3P HeI line is a good measure of t…
Optical and Infrared Spectroscopy of the type IIn SN 1998S : Days 3-127
A. Fassia, W. P. S. Meikle, N. Chugai +14
We present contemporary infrared and optical spectroscopic observations of the type IIn SN 1998S for the period between 3 and 127 days after discovery. In the first week the spectr…