Description
Mrk 3 is an early-type galaxy at a redshift of z = 0.0135 (D ~ 56 Mpc) with an AGN classified as a Sy 2
[khachikian_atlas_1974] with polarized broad emission lines [miller_spectropolarimetry_1990]. It is also a
member of the nine-month BAT AGN sample. Mrk 3 possesses a slightly bended, collimated radio jet with a total
extend of ~ 2arcsec (~ 530pc; PA~ 84∘; [kukula_high-resolution_1993]), and an extended NLR with ~ 2.1arcsec
diameter, which coincides with the radio emission (~ 555pc; PA~ 70∘; [capetti_morphology_1995,
schmitt_comparison_1996]). In addition, water maser emission was detected in Mrk 3 [braatz_green_2004]. The
first MIR observations of Mrk 3 were performed by [neugebauer_optical_1976] and [rieke_infrared_1978],
followed by ISO/ISOCAM observations after IRAS [ramos_almeida_mid-infrared_2007]. In the Spitzer/IRAC and
MIPS images, Mrk 3 appears rather point-like, and the Spitzer/IRS LR staring-mode spectrum shows weak
silicate 10 μm absorption, strong forbidden emission lines, and a steep spectral slope with an emission
peak at ~ 18 μm in νFν-space (see also [weedman_mid-infrared_2005, deo_mid-infrared_2009,
mullaney_defining_2011]). Mrk 3 was observed with Michelle in the Si-5 filter in 2010 (unpublished, to our
knowledge). An elongated nucleus was detected (FWHM(major axis)~ 0.65arcsec ~ 170 pc; PA~ 70∘),
which matches the NLR and radio elongation. However, at least a second epoch of subarcsecond MIR
imaging is required to verify this extension. Our total nuclear photometry is consistent with the Spitzer
spectrophotometry.
-
[braatz_green_2004] J. A. Braatz, C. Henkel, L. J.
Greenhill, J. M. Moran, and A. S. Wilson.
A green bank
telescope search for water masers in nearby active galactic nuclei
.
ApJL
,
617
pp. L29–L32, December 2004.
-
[capetti_morphology_1995] A. Capetti,
F. Macchetto, D. J. Axon, W. B. Sparks, and A. Boksenberg.
The morphology
of the narrow-line region of markarian 3
.
ApJ
,
448
pp. 600, August 1995.
-
[deo_mid-infrared_2009] Rajesh P. Deo, Gordon T.
Richards, D. M. Crenshaw, and S. B. Kraemer.
The mid-infrared
continua of seyfert galaxies
.
ApJ
,
705
pp. 14–31, November 2009.
-
[khachikian_atlas_1974] E. Y. Khachikian and
D. W. Weedman.
An atlas of
seyfert galaxies
.
ApJ
,
192
pp. 581–589, September 1974.
-
[kukula_high-resolution_1993] M. J.
Kukula, T. Ghosh, A. Pedlar, R. T. Schilizzi, G. K. Miley, A. G. de Bruyn,
and D. J. Saikia.
High-resolution
radio observations of MARKARIAN:3
.
MNRAS
,
264
pp. 893, October 1993.
-
[miller_spectropolarimetry_1990] J. S.
Miller and R. W. Goodrich.
Spectropolarimetry of high-polarization seyfert 2 galaxies and unified
seyfert theories
.
ApJ
,
355
pp. 456–467, June 1990.
-
[mullaney_defining_2011] J. R. Mullaney, D. M.
Alexander, A. D. Goulding, and R. C. Hickox.
Defining the
intrinsic AGN infrared spectral energy distribution and measuring its
contribution to the infrared output of composite galaxies
.
MNRAS
, page 474, April 2011.
-
[neugebauer_optical_1976] G. Neugebauer, E. E.
Becklin, J. B. Oke, and L. Searle.
Optical and
infrared spectrophotometry of 18 markarian galaxies
.
ApJ
,
205
pp. 29–43, April 1976.
-
[ramos_almeida_mid-infrared_2007]
C. Ramos Almeida, A. M. Pérez García, J. A. Acosta-Pulido, and J. M.
Rodríguez Espinosa.
The mid-infrared
emission of seyfert galaxies: A new analysis of ISOCAM data
.
AJ
,
134
pp. 2006–2019, November 2007.
-
[rieke_infrared_1978] G. H. Rieke.
The infrared
emission of seyfert galaxies
.
ApJ
,
226
pp. 550–558, December 1978.
-
[schmitt_comparison_1996] Henrique R. Schmitt
and Anne L. Kinney.
A comparison
between the narrow-line regions of seyfert 1 and seyfert 2 galaxies
.
ApJ
,
463
pp. 498, June 1996.
-
[weedman_mid-infrared_2005] D. W. Weedman,
Lei Hao, S. J. U. Higdon, D. Devost, Yanling Wu, V. Charmandaris, B. Brandl,
E. Bass, and J. R. Houck.
Mid-infrared
spectra of classical AGNs observed with the spitzer space telescope
.
ApJ
,
633
pp. 706–716, November 2005.
Images
Optical image (DSS, red filter). Displayed are the
central 4 arcmin with North being up and East to the left. The colour
scaling is linear with white corresponding to the median background (BG)
and black to the 0.01% pixels with the highest intensity.
Spitzer MIR images. Displayed are the inner 40 arcsec
with North being up and East to the left. The colour scaling is logarithmic
with white corresponding to median BG and black to the 0.1% pixels with the
highest intensity. The label in the bottom left states instrument and
central wavelength of the filter in micron (I: IRAC, M: MIPS).
Subarcsecond-resolution MIR images sorted by increasing
filter central wavelength. Displayed are the inner 4 arcsec with North
being up and East to the left. The colour scaling is logarithmic with white
corresponding to median BG and black to the 75% of the highest intensity of
all images in units of sig_bg. The inset image (where present; either
bottom or top right) shows the central arcsecond of the PSF from the
calibrator star, scaled to match the science target. The labels in the
bottom left state instrument and filter names (C: COMICS, M: Michelle, T:
T-ReCS, V: VISIR).
SEDs
MIR SED. The description of the symbols in all the SED plots (where
present) is the following: Grey crosses and solid lines mark the
Spitzer/IRAC, MIPS and IRS data. The colour coding of the other symbols is
as follows: green for COMICS, magenta for Michelle, blue for T-ReCS and red
for VISIR data. Darker-coloured solid lines mark spectra of the
corresponding instrument. The black filled circles mark the nuclear 12 and
18 micron continuum emission estimate from the data (where present). The
ticks on the top axis mark positions of common MIR emission lines, while
the light grey horizontal bars mark wavelength ranges affected by the
silicate 10 and 18 micron features.