Polarization microvariability of BL Lacertae objects

We present the results of a systematic observational campaign designed to search for microvariability in the optical polarization of BL Lac objects. We observed a sample formed by 8 X-ray-selected and 10 radio-selected sources, looking for rapid changes in both the degree of linear polarization and...

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Detalles Bibliográficos
Autores principales: Andruchow, Ileana, Romero, Gustavo Esteban, Cellone, Sergio Aldo
Formato: Articulo
Lenguaje:Español
Publicado: 2005
Materias:
Astronomía
galaxies: active
galaxies: BL Lacertae objects: general
polarization
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/123962
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-123962
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Español
topic Astronomía
galaxies: active
galaxies: BL Lacertae objects: general
polarization
spellingShingle Astronomía
galaxies: active
galaxies: BL Lacertae objects: general
polarization
Andruchow, Ileana
Romero, Gustavo Esteban
Cellone, Sergio Aldo
Polarization microvariability of BL Lacertae objects
topic_facet Astronomía
galaxies: active
galaxies: BL Lacertae objects: general
polarization
description We present the results of a systematic observational campaign designed to search for microvariability in the optical polarization of BL Lac objects. We observed a sample formed by 8 X-ray-selected and 10 radio-selected sources, looking for rapid changes in both the degree of linear polarization and the corresponding polarization angle. The whole campaign was carried out during the last three years, and most of the objects were observed on at least two consecutive nights. The statistical properties of both classes of BL Lac objects are compared, and some general conclusions on the nature of the phenomenon are drawn. In general, radio selected sources seem to display higher duty cycles for polarimetric microvariability and, on average, they have a stronger polarization.
format Articulo
Articulo
author Andruchow, Ileana
Romero, Gustavo Esteban
Cellone, Sergio Aldo
author_facet Andruchow, Ileana
Romero, Gustavo Esteban
Cellone, Sergio Aldo
author_sort Andruchow, Ileana
title Polarization microvariability of BL Lacertae objects
title_short Polarization microvariability of BL Lacertae objects
title_full Polarization microvariability of BL Lacertae objects
title_fullStr Polarization microvariability of BL Lacertae objects
title_full_unstemmed Polarization microvariability of BL Lacertae objects
title_sort polarization microvariability of bl lacertae objects
publishDate 2005
url http://sedici.unlp.edu.ar/handle/10915/123962
work_keys_str_mv AT andruchowileana polarizationmicrovariabilityofbllacertaeobjects
AT romerogustavoesteban polarizationmicrovariabilityofbllacertaeobjects
AT cellonesergioaldo polarizationmicrovariabilityofbllacertaeobjects
bdutipo_str Repositorios
_version_ 1764820450581413888

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