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Galaxies 2018, 6(1), 18; doi:10.3390/galaxies6010018

Optical Polarimetry and Radio Observations of PKS1510-089 between 2009 and 2013

1
Instituto de Astronomia, Geofísica e Ciências Atmosfericas, Universidade de São Paulo, Rua do Matão 1226, 05508-090 São Paulo, Brazil
2
Museu de Astronomia e Ciências Afins, Ministério da Ciência, Tecnologia, Inovações e Comunicações (MAST/MCTIC), Rua General Bruce 586, Bairro Imperial de São Cristovão, 20921-030 Rio de Janeiro, Brazil
*
Author to whom correspondence should be addressed.
Received: 15 October 2017 / Revised: 19 December 2017 / Accepted: 23 January 2018 / Published: 1 February 2018
(This article belongs to the Special Issue Polarised Emission from Astrophysical Jets)
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Abstract

The blazar PKS 1510-089 has shown intense activity at γ -rays in the recent years. In this work, we discussed the results of our 7 mm radio continuum and optical polarimetric monitoring between 2009 and 2013. In 2009, we detected a large rotation of the optical polarization angle that we attributed to the ejection of new polarized components. In 2011, after the occurrence of several γ -rays flares, the radio emission started to increase, reaching values never observed before. We interpreted this increase as the consequence of the superposition of several new components ejected during the γ -rays flares. A delay was measured between the maximum in the radio emission and the γ -ray flares, which favors models involving expanding components like the shock-in-jet models. Finally, we tried to understand the polarization angle variability behavior filling the gaps in our observations with published results of other polarimetric campaigns, and using the criterion of minimum variation in the polarization angle between successive observations to solve the 180° multiplicity. View Full-Text
Keywords: Blazars; PKS1510-089; jets Blazars; PKS1510-089; jets
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Beaklini, P.P.B.; Dominici, T.P.; Abraham, Z. Optical Polarimetry and Radio Observations of PKS1510-089 between 2009 and 2013. Galaxies 2018, 6, 18.

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