Showing 1999 · astro-phShow all

8 papers · 2 filters

astro-ph1999★ 23 cited

Period-Luminosity-Colour distribution and classification of Galactic oxygen-rich LPVs

D. Barthes, X. Luri, R. Alvarez +1

The absolute K magnitudes and kinematic parameters of about 350 oxygen-rich Long-Period Variable stars are calibrated, by means of an up-to-date maximum-likelihood method, using Hi…

astro-ph1999

Evidence of H alpha periodicities in LS I+61303

R. K. Zamanov, J. Marti, J. M. Paredes +3

We present the results of analyzing H spectra of the radio emitting X-ray binary LS I+61303. For the first time, the same 26.5 d radio period is clearly detected in the H emi…

astro-ph1999★ 4 cited

On the Evolution of Moving Groups: An Application to the Pleiades Moving Group

R. Asiain, F. Figueras, J. Torra

The disruption of stellar systems, such as open clusters or stellar complexes, stands out as one of the most reasonable physical processes accounting for the young moving groups ob…

astro-ph1999★ 45 cited

The LMC eclipsing binary HV 2274: fundamental properties and comparison with evolutionary models

Ignasi Ribas, Edward F. Guinan, Edward L. Fitzpatrick +6

We are carrying out an international, multi-wavelength program to determine the fundamental properties and independent distance estimates of selected eclipsing binaries in the LMC…

astro-ph1999★ 9 cited

X-ray and optical-to-infrared follow-up observations of the transient X-ray burster SAX J1810.8-2609

J. Greiner, A. J. Castro-Tirado, Th. Boller +5

We have performed a ROSAT follow-up observation of the X-ray transient SAX J1810.8-2609 on March 24, 1998 and detected a bright X-ray source (named RX J1810.7-2609) which was not d…

astro-ph1999★ 10 cited

X-ray and radio observations of RX J1826.2-1450/LS 5039

M. Ribo, P. Reig, J. Marti +1

RX J1826.2-1450/LS 5039 has been recently proposed to be a radio emitting high mass X-ray binary. In this paper, we present an analysis of its X-ray timing and spectroscopic proper…

astro-ph1999★ 25 cited

CD Tau: a detached eclipsing binary with a solar-mass companion

Ignasi Ribas, Carme Jordi, Jordi Torra

We present a detailed analysis of the detached eclipsing binary CD Tau. A large variety of observational data, in form of IR photometry, CORAVEL radial velocity observations and hi…

astro-ph1999

Multiple mode gravitational wave detection with a spherical antenna

J. Alberto Lobo, M. Angeles Serrano

Apart from omnidirectional, a solid elastic sphere is a natural multimode and multifrequency device for the detection of Gravitational Waves (GW). Motion sensing in a spherical GW…