VLBA polarimetry monitoring of 3C 111 as a tool to probe AGN jet physics on parsec scales

27 Pages·2017·7.03 MB·English

VLBA polarimetry monitoring of 3C 111
as a tool to probe AGN jet physics on
parsec scales
T.Beuchert, M.Kadler, M.Perucho, C.Großberger, R.Schulz,
I.Agudo, C.Casadio, D.Gabuzda, J.L.Gómez, M.Gurwell,
D.Homan, Y.Y.Kovalev, M.L.Lister, S.Markoff, S.N.Molina,
A.B.Pushkarev, E.Ros, T.Savolainen, T.Steinbring, C.Thum,
J.Wilms
2017 June 15
Polarised Emission from Astrophysical Jets 2017, Ierapetra
Fromm et al. (2016)
Motivation
Roca-Sogorb et al. (2008)
Cawthorne et al. (2009)
Myserlis et al. (2016)
TEMZ model: Marscher (2014); MacDonald & Marscher (2016)
RAISHIN code: Mizuno et al. (2006,2011,2015); Gomez et al. (2016)
Porth et al. (2011)
talks and papers, e.g., by A. Fuentes, C. Fromm, K.I. Nishikawa
TobiasBeuchert | PolarisedEmissionfromAstrophysicalJets
Motivation
Roca-Sogorb et al. (2008)
Fromm et al. (2016)
Cawthorne et al. (2009)
Myserlis et al. (2016)
TEMZ model: Marscher (2014); MacDonald & Marscher (2016)
RAISHIN code: Mizuno et al. (2006,2011,2015); Gomez et al. (2016)
Porth et al. (2011)
talks and papers, e.g., by A. Fuentes, C. Fromm, K.I. Nishikawa
TobiasBeuchert | PolarisedEmissionfromAstrophysicalJets
Previous work
Kadler et al. (2008)
Perucho et al. (2008)
• 10 years, 18 epochs
• 7 epochs with
polarimetry data
• great study of
kinematics and
jet physics
TobiasBeuchert | PolarisedEmissionfromAstrophysicalJets
Continued MOJAVE monitoring at 15 GHz
time
e
c
n
a
t
s
i
d
• 36 epochs in 5 years
• most dense sampling of polarized flux
• study complex jet-intrinsic dynamics with polarimetry
Beuchert et al., 2017, in prep.
TobiasBeuchert | PolarisedEmissionfromAstrophysicalJets
l
direct measure of d r
/
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Core Distance [mas]
TobiasBeuchert | PolarisedEmissionfromAstrophysicalJets
s
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/
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l
d r
/
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B r or B r
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/ /
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Core Distance [mas]
TobiasBeuchert | PolarisedEmissionfromAstrophysicalJets
Peculiar behavior at 3 mas
⇠
2 5 10
1.0 1.0 l
direct measure of d r
] /
s
a
m steepening & 3 mas
.
p [
e s
pr xi
a
n
r
i o
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,
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2 5 10 n
N r with n < 0
Core Distance [mas] >3 mas
/
TobiasBeuchert | PolarisedEmissionfromAstrophysicalJets
see talks, e.g., by
T. Savolainen
S.N. Molina,
Y.K. Ma,
T. Hovatta,
H. Nagai,
A. Pasetto
Polarimetry
Beuchert et al., 2017, in prep.
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]
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R y
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(a)
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Relative RA [mas]
TobiasBeuchert | PolarisedEmissionfromAstrophysicalJets
see talks, e.g., by
T. Savolainen
S.N. Molina,
Y.K. Ma,
T. Hovatta,
H. Nagai,
A. Pasetto
Polarimetry
Beuchert et al., 2017, in prep.
5 400
0415+379 2007.1-2012.5
4
]
s P
a 200
o
m
3 l
[ a
[ m r
C i
J z
100
E 2 y e
D / d
70 b
I
e 1 e n
v 50 a t
m e
i
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a ]
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150 (a)
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]
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Relative RA [mas] [ 50
A
P A
V 0 B
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(((PPPAAA 999000 )))
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-100 (d)
0 2 4 6 8
Core Distance [mas]
TobiasBeuchert | PolarisedEmissionfromAstrophysicalJets