Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/28451
Title: | Searching for Jet Emission in LMXBs: A Polarimetric View | Authors: | Baglio, Maria D'AVANZO, Paolo CAMPANA, Sergio Russell, Dave |
Issue Date: | 2017 | Journal: | GALAXIES | Number: | 5 | Issue: | 4 | First Page: | 62 | Abstract: | We present results taken from a study aiming at detecting the emission from relativistic particles jets in neutron star-low mass X-ray binaries using optical polarimetric observations. First, we focus on a polarimetric study performed on the persistent LMXB 4U 0614+091. Once corrected for interstellar effects, we measured an intrinsic linear polarization in the r-band of ~3% at a 3σ confidence level. This is in-line with the observation of an infrared excess in the spectral energy distribution (SED) of the source, reported in a previous work, which the authors linked to the optically thin synchrotron emission of a jet. We then present a study performed on the transitional millisecond pulsar PSR J1023+0038 during quiescence. We measured a linear polarization of 1.09 ± 0.27% and 0.90 ± 0.17% in the V and R bands, respectively. The phase-resolved polarimetric curve of the source in the R-band reveals a hint of a sinusoidal modulation at the source orbital period. The NIR -optical SED of the system did not suggest the presence of a jet. We conclude that the optical linear polarization observed for PSR J1023+0038 is possibly due to Thomson scattering with electrons in the disc, as also suggested by the hint of the modulation of the R-band linear polarization at the system orbital period. | URI: | http://hdl.handle.net/20.500.12386/28451 | URL: | https://www.mdpi.com/2075-4434/5/4/62 | ISSN: | 2075-4434 | DOI: | 10.3390/galaxies5040062 | Bibcode ADS: | 2017Galax...5...62B | Fulltext: | open |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
galaxies-05-00062.pdf | Pdf editoriale | 348.88 kB | Adobe PDF | View/Open |
Page view(s)
31
checked on Apr 19, 2024
Download(s)
9
checked on Apr 19, 2024
Google ScholarTM
Check
Altmetric
Altmetric
Items in DSpace are published in Open Access, unless otherwise indicated.