output
19912026
Showing 1997 · astro-phShow all

7 papers · 2 filters

astro-ph1997★ 119 cited

Understanding the Cool DA White Dwarf, G29-38

S. J. Kleinman, R. E. Nather, D. E. Winget +37

The white dwarfs are promising laboratories for the study of cosmochronology and stellar evolution. Through observations of the pulsating white dwarfs, we can measure their interna…

astro-ph1997★ 45 cited

Resolved structure in the nuclear region of the ultraluminous infrared galaxy Mrk 273

J. H. Knapen, S. Laine, J. A. Yates +4

We have studied the core morphology of the ultraluminous infrared galaxy Mrk 273 by combining a high-resolution adaptive optics near-infrared image with an optical image from the H…

astro-ph1997★ 110 cited

Classical tests for Weyl gravity: deflection of light and time delay

A. Edery, M. B. Paranjape

Weyl gravity has been advanced in the recent past as an alternative to General Relativity (GR). The theory has had some success in fitting galactic rotation curves without the need…

astro-ph1997★ 24 cited

Gravity-Mode Instabilities in Models of Post-Extreme Horizontal Branch Stars: Another Class of Pulsating Stars?

S. Charpinet, G. Fontaine, P. Brassard +1

We present new results of a stability analysis of realistic models of post-extreme horizontal branch stars. We find that g-mode instabilities develop in some of these models as a r…

astro-ph1997★ 24 cited

NGC 5084: A Massive Disk Galaxy Accreting its Satellites ?

Claude Carignan, Stephanie Cote, Ken Freeman +1

The spectra of 34 galaxies within 20 arcmins (\sim 100 kpc) of the lenticular galaxy NGC 5084 have been obtained using the FOCAP system on the Anglo-Australian 3.9m telescope. Nine…

astro-ph1997

Mass-Models of Five Nearby Dwarf Irregular Galaxies

Stephanie Cote, Ken Freeman, Claude Carignan

Five nearby dwarf irregular galaxies, amongst the recently surveyed dwarf members of the Sculptor and Centaurus A groups (at 2.5 Mpc and 3.5 Mpc), have been imaged in neutral hydro…

astro-ph1997★ 56 cited

S1040 in M67: A Post-Mass-Transfer Binary with a Helium-Core White Dwarf

W. Landsman, J. Aparicio, P. Bergeron +2

We have obtained spectra of the yellow giant S1040 in the open cluster M67 using the Goddard High-Resolution Spectrograph (GHRS) and the Faint Object Spectrograph on the Hubble Spa…