Issue |
A&A
Volume 418, Number 1, April IV 2004
|
|
---|---|---|
Page(s) | 271 - 274 | |
Section | Stellar structure and evolution | |
DOI | https://doi.org/10.1051/0004-6361:20035886 | |
Published online | 02 April 2004 |
Optical CCD photometry of the microquasar LS 5039
1
Departamento de Física, Escuela Politécnica Superior, Universidad de Jaén, Virgen de la Cabeza 2, 23071 Jaén, Spain e-mail: jlg@ujaen.es
2
Departamento de Ingeniería Mecánica y Minera, Escuela Universitaria Politécnica de Linares, Universidad de Jaén, C/ Alfonso X el Sabio 28, 23700 Linares, Spain e-mail: peter@ujaen.es
3
Departament d'Astronomia i Meteorologia, Universitat de Barcelona, Av. Diagonal 647, 08028 Barcelona, Spain e-mail: jmparedes@ub.edu
4
Astrophysics Research Institute, Liverpool John Moores University, Twelve Quays House, Birkenhead, CH41 1LD, UK e-mail: rz@astro.livjm.ac.uk
Corresponding author: J. Martí, jmarti@ujaen.es
Received:
16
December
2003
Accepted:
15
January
2004
We report optical CCD observations of the microquasar LS 5039. Its photometric
behaviour is studied over different orbital periods with a time separation of three years.
We do not detect evidences of an ellipsoidal modulation
above the mag level, thus confirming the previous results
reported by Clark et al. ([CITE]).
The light curve of LS 5039 has also been explored with a time resolution of 30 s
but the source also appears to be stable on such shorter time scales.
Possible scenarios consistent with the non-detection
of optical variability are considered.
Key words: stars: individual: LS 5039 (RX J1826.2-1450) / X-rays: binaries / radio continuum: stars
© ESO, 2004
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.