output
19962026
most citedThe Astropy Project: Sustaining and Growing a Community-oriented Open-source Project and the Latest Major Release (v5.0) of the Core Package

5k citations

Showing 1999Show all

16 papers · 1 filter

astro-ph1999★ 127 cited

Probable detection of starlight reflected from the giant exoplanet orbiting tau Bootis

Andrew Collier Cameron, Keith Horne, Alan Penny +1

Giant planets orbiting stars other than the Sun are clearly detectable through precise radial-velocity measurements of the orbital reflex motion of the parent star. In the four yea…

astro-ph1999★ 56 cited

Multi-epoch Doppler tomography and polarimetry of QQ Vul

A. D. Schwope, Maria S. Catalan, Klaus Beuermann +3

(abridged abstract) We present multi-epoch high-resolution spectroscopy and photoelectric polarimetry of the long-period polar (AM Herculis star) QQ Vul. The blue emission lines sh…

astro-ph1999

The PLANET microlensing follow-up network: Results and prospects for the detection of extra-solar planets

M. Dominik, M. D. Albrow, J. -P. Beaulieu +19

Among various techniques to search for extra-solar planets, microlensing has some unique characteristics. Contrary to all other methods which favour nearby objects, microlensing is…

astro-ph1999★ 69 cited

The Ccontribution of normal, dim and dwarf galaxies to the local luminosity density

Simon P. Driver

From the Hubble Deep Field catalog presented in Driver et al. (1998) we derive the local (0.3 < z < 0.5) Bivariate Brightness Distribution (BBD) of field galaxies within a 326 Mpc*…

astro-ph1999★ 60 cited

Magneto-Acoustic Waves of Small Amplitude in Optically Thin Quasi-Isentropic Plasmas

Valery M. Nakariakov, Cesar A. Mendoza-Briceno, Miguel H. Ibanez S.

The evolution of quasi-isentropic magnetohydrodynamic waves of small but finite amplitude in an optically thin plasma is analyzed. The plasma is assumed to be initially homogeneous…

astro-ph1999

The coplanar n-body gravitational lens : a general theorem

T. Richard Carson

Generalizing a result for the binary lens, similar alternative expressions are also given for the Jacobian determinant for a gravitational lens consisting of an arbitrary number of…

astro-ph1999★ 29 cited

The ``Outside-In'' Outburst of HT Cassiopeiae

Zach Ioannou, T. Naylor, W. F. Welsh +3

We present results from photometric observations of the dwarf nova system HT Cas during the eruption of November 1995. The data include the first two--colour observations of an ecl…

cond-mat.soft1999★ 292 cited

Relativistic Effects of Light in Moving Media with Extremely Low Group Velocity

U. Leonhardt, P. Piwnicki

A moving dielectric medium acts as an effective gravitational field on light. One can use media with extremely low group velocities [Lene Vestergaard Hau et al., Nature 397, 594 (1…

astro-ph1999★ 20 cited

The emission-line pulse pattern in the intermediate polar RX J0558

E. T. Harlaftis, K. Horne

We observed the intermediate polar RX J0558+53 with the 4.2m WHT and find in the pulsed emission lines, a ``corkscrew'' pattern, which indicates a two-pole white dwarf accretion. T…

astro-ph1999★ 301 cited

The 2dF Galaxy Redshift Survey: Spectral Types and Luminosity Functions

S. R. Folkes, S. Ronen, I. Price +22

We describe the 2dF Galaxy Redshift Survey (2dFGRS), and the current status of the observations. In this exploratory paper, we apply a Principal Component Analysis to a preliminary…

astro-ph1999★ 46 cited

Magnetic Flux Braiding: Force-Free Equilibria and Current Sheets

A. W. Longbottom, G. J. Rickard, I. J. D. Craig +1

We use a numerical nonlinear multigrid magnetic relaxation technique to investigate the generation of current sheets in three-dimensional magnetic flux braiding experiments. We are…

astro-ph1999★ 36 cited

Unstable coronal loops : numerical simulations with predicted observational signatures

T. D. Arber, A. W. Longbottom, R. A. M. Van der Linden

We present numerical studies of the nonlinear, resistive magnetohydrodynamic (MHD) evolution of coronal loops. For these simulations we assume that the loops carry no net current,…

astro-ph1999★ 49 cited

On the observability of spiral structures in CV accretion discs

Danny Steeghs, Rudolf Stehle

We use the grid of hydrodynamic accretion disc calculations of Stehle (1999) to construct orbital phase dependent emission line profiles of thin discs carrying spiral density waves…

astro-ph1999

The 1996 dwarf nova outburst of the intermediate polar GK Persei

L. Morales-Rueda, M. D. Still, P. Roche

GK Persei is an intermediate polar that exhibits a dwarf nova outburst approximately every 1000 days. During previous outbursts the system has displayed kilo-second quasi-periodic…

astro-ph1999★ 32 cited

Solving the kilo-second QPO problem of the intermediate polar GK Persei

L. Morales-Rueda, M. D. Still, P. Roche

We detect the likely optical counterpart to previously reported X-ray QPOs in spectrophotometry of the intermediate polar GK Persei during the 1996 dwarf nova outburst. The charact…

astro-ph1999★ 2 cited

Disk-Anchored Magnetic Propellers - A Cure for the SW Sex Syndrome

Keith Horne

In AE Aqr, magnetic fields transfer energy and angular momentum from a rapidly spinning white dwarf to material in the gas stream from the companion star, with the effect of spinni…