Optical polarimetric observations of the microquasar LS 5039

We present the first optical polarimetric observations of the runaway microquasar LS 5039. Our results reveal the presence of a large amount (∼5%) of polarized emission towards this binary system. By combining polarimetric and spectroscopic observations of some stars in the field together with avail...

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Detalles Bibliográficos
Publicado: 2004
Materias:
Binaries
Binaries - Stars
General - Polarization
Individual
LS 5039 - X-rays
Stars
Computational geometry
Electronic density of states
Electrons
Interpolation
Magnetic fields
Polarization
Spectroscopic analysis
Statistical methods
Vectors
Velocity
Binaries-stars
General-polarization
LS 5039-X-rays
Polarimeters
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00046361_v427_n3_p959_Combi
http://hdl.handle.net/20.500.12110/paper_00046361_v427_n3_p959_Combi
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_00046361_v427_n3_p959_Combi
record_format dspace
spelling paper:paper_00046361_v427_n3_p959_Combi2023-06-08T14:27:36Z Optical polarimetric observations of the microquasar LS 5039 Binaries Binaries - Stars General - Polarization Individual LS 5039 - X-rays Stars Computational geometry Electronic density of states Electrons Interpolation Magnetic fields Polarization Spectroscopic analysis Statistical methods Vectors Velocity Binaries-stars General-polarization LS 5039-X-rays Stars Polarimeters We present the first optical polarimetric observations of the runaway microquasar LS 5039. Our results reveal the presence of a large amount (∼5%) of polarized emission towards this binary system. By combining polarimetric and spectroscopic observations of some stars in the field together with available statistical information on the galactic interstellar polarization of the region, we have estimated and subtracted the contribution of the interstellar polarization in this direction. As a result, we obtain an intrinsic polarization of ∼3% for the object, much higher than what would be expected from jet emission in the optical domain. We suggest that the polarized light originates by electron Thomson scattering in the stellar envelope of the companion star. This allows us to constrain the size of the region where the polarized emission originates, as well as estimating the scattering electronic density and the wind velocity at such distance. 2004 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00046361_v427_n3_p959_Combi http://hdl.handle.net/20.500.12110/paper_00046361_v427_n3_p959_Combi
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Binaries
Binaries - Stars
General - Polarization
Individual
LS 5039 - X-rays
Stars
Computational geometry
Electronic density of states
Electrons
Interpolation
Magnetic fields
Polarization
Spectroscopic analysis
Statistical methods
Vectors
Velocity
Binaries-stars
General-polarization
LS 5039-X-rays
Stars
Polarimeters
spellingShingle Binaries
Binaries - Stars
General - Polarization
Individual
LS 5039 - X-rays
Stars
Computational geometry
Electronic density of states
Electrons
Interpolation
Magnetic fields
Polarization
Spectroscopic analysis
Statistical methods
Vectors
Velocity
Binaries-stars
General-polarization
LS 5039-X-rays
Stars
Polarimeters
Optical polarimetric observations of the microquasar LS 5039
topic_facet Binaries
Binaries - Stars
General - Polarization
Individual
LS 5039 - X-rays
Stars
Computational geometry
Electronic density of states
Electrons
Interpolation
Magnetic fields
Polarization
Spectroscopic analysis
Statistical methods
Vectors
Velocity
Binaries-stars
General-polarization
LS 5039-X-rays
Stars
Polarimeters
description We present the first optical polarimetric observations of the runaway microquasar LS 5039. Our results reveal the presence of a large amount (∼5%) of polarized emission towards this binary system. By combining polarimetric and spectroscopic observations of some stars in the field together with available statistical information on the galactic interstellar polarization of the region, we have estimated and subtracted the contribution of the interstellar polarization in this direction. As a result, we obtain an intrinsic polarization of ∼3% for the object, much higher than what would be expected from jet emission in the optical domain. We suggest that the polarized light originates by electron Thomson scattering in the stellar envelope of the companion star. This allows us to constrain the size of the region where the polarized emission originates, as well as estimating the scattering electronic density and the wind velocity at such distance.
title Optical polarimetric observations of the microquasar LS 5039
title_short Optical polarimetric observations of the microquasar LS 5039
title_full Optical polarimetric observations of the microquasar LS 5039
title_fullStr Optical polarimetric observations of the microquasar LS 5039
title_full_unstemmed Optical polarimetric observations of the microquasar LS 5039
title_sort optical polarimetric observations of the microquasar ls 5039
publishDate 2004
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00046361_v427_n3_p959_Combi
http://hdl.handle.net/20.500.12110/paper_00046361_v427_n3_p959_Combi
_version_ 1768542247464206336

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