output
19952026
most citedDigital Twin: Enabling Technologies, Challenges and Open Research

2.9k citations

Showing 1998 · astro-phShow all

10 papers · 2 filters

astro-ph1998★ 8 cited

YY Draconis and V709 Cassiopeiae: two intermediate polars with weak magnetic fields

A. J. Norton, A. P. Beardmore, Alasdair Allan +1

We present data from long ROSAT HRI observations of the intermediate polars YY Dra and V709 Cas which show that V709 Cas, like YY Dra, exhibits a double-peaked X-ray pulse profile.…

astro-ph1998

Is TW Pictoris really an intermediate polar?

A. J. Norton, A. P. Beardmore

We present the results of a long ROSAT HRI observation of the candidate intermediate polar TW Pic. The power spectrum shows no sign of either the previously proposed white dwarf sp…

astro-ph1998★ 38 cited

Lithium in Blanco1: Implications for Stellar Mixing

R. D. Jeffries, D. J. James

We obtain lithium abundances for G and K stars in Blanco 1, an open cluster with an age similar to, or slightly younger than, the Pleiades. We critically examine previous spectrosc…

astro-ph1998★ 74 cited

Submillimeter Observations of the Ultraluminous BAL Quasar APM 08279+5255

Geraint F. Lewis, Scott C. Chapman, Rodrigo A. Ibata +2

With an inferred bolometric luminosity of $5\times10^{15}{\rm \lsun}$, the recently identified z=3.87, broad absorption line quasar APM 08279+5255 is apparently the most luminous o…

astro-ph1998★ 45 cited

HST and ground-based eclipse observations of V2051 Ophiuchi: Binary parameters

Raymundo Baptista, M. S. Catalan, Keith Horne +1

We report on high-speed eclipse photometry of the dwarf nova V2051 Oph while it was in a low brightness state, at B ~ 16.2 mag. In comparison to the average IUE spectra, the ultrav…

astro-ph1998

The effects of convection on the colours of A and F stars

B. Smalley, F. Kupka

We present a discussion on the effects of convection on the uvby colours of A and F stars. The mixing-length theory used in ATLAS9 is compared to the turbulent convection theory of…