Sasmirala Individual Information for NGC 5005
Description
NGC 5005 is an inclined barred spiral galaxy at a distance of D = 16.9 ± 6.7 Mpc (NED redshift-independent median) with a broad-line LINER nucleus [ho_search_1997-1]. In X-rays, it appears as a compact source embedded within extended emission [dudik_chandra_2005, gonzalez-martin_x-ray_2009]. An elongated radio nucleus was detected in arcsecond-scale radio observations (PA~ 135∘; [vila_compact_1990]; not detected at 2cm [nagar_radio_2000]). Furthermore, NGC 5005 features a wide NLR cone extending ~ 3arcsec ~ 240 pc south-east (PA~ 135∘; [pogge_narrow-line_2000]) and a circum-nuclear clumpy, dusty star-forming region parallel to the galaxy major axis [barth_search_1998]. The first ground-based MIR observations were performed by [cizdziel_multiaperture_1985], followed by [devereux_spatial_1987] and [maiolino_new_1995]. A first subarcsecond-resolution N-band imaging attempt was reported by [gorjian_10_2004] with Palomar 5 m/MIRLIN, but the nucleus remained undetected. The Spitzer/IRAC and MIPS images show a nucleus elongated parallel to the major-axis. It is embedded within the spiral-like host emission. Our nuclear IRAC 5.8 and 8.0 μm fluxes are significantly lower than the fluxes given in [gallimore_infrared_2010] but roughly match the Spitzer/IRS flux levels. The IRS LR staring-mode spectrum is dominated by PAH features with possibly weak silicate 10 μm absorption and a red spectral slope in νFν-space (see also [buchanan_spitzer_2006, shi_9.7_2006, wu_spitzer/irs_2009, tommasin_spitzer-irs_2010, gallimore_infrared_2010]). Therefore, the arcsecond-scale MIR SED appears to be completely star-formation dominated. The nuclear region of NGC 5005 was observed with Michelle in the N’ filter in 2008 [mason_nuclear_2012], and a compact nucleus, embedded within ~ 6arcsec ~ 0.5 kpc elongated emission, is weakly detected (PA~ 62∘). Our manually-scaled PSF flux is consistent with [mason_nuclear_2012] and ~ 95% lower than the Spitzer spectrophotometry. Therefore, we conclude that the central ~ 0.4 kpc MIR emission of NGC 5005 is completely star-formation dominated and our nuclear flux has to be regarded as an upper limit to the AGN-powered emission.
- [barth_search_1998] Aaron J. Barth, Luis C. Ho, Alexei V. Filippenko, and Wallace L. W. Sargent. A search for ultraviolet emission from LINERs . ApJ , 496 pp. 133, March 1998.
- [buchanan_spitzer_2006] Catherine L. Buchanan, Jack F. Gallimore, Christopher P. O'Dea, Stefi A. Baum, David J. Axon, Andrew Robinson, Moshe Elitzur, and Martin Elvis. Spitzer IRS spectra of a large sample of seyfert galaxies: A variety of infrared spectral energy distributions in the local active galactic nucleus population . AJ , 132 pp. 401–419, July 2006.
- [cizdziel_multiaperture_1985] P. J. Cizdziel, E. E. Becklin, and C. G. Wynn-Williams. Multiaperture infrared photometry of the nuclei of spiral galaxies . AJ , 90 pp. 731–735, May 1985.
- [devereux_spatial_1987] Nicholas Devereux. The spatial distribution of 10 micron luminosity in spiral galaxies . ApJ , 323 pp. 91–107, December 1987.
- [dudik_chandra_2005] R. P. Dudik, S. Satyapal, M. Gliozzi, and R. M. Sambruna. A chandra snapshot survey of infrared-bright LINERs: a possible link between star formation, active galactic nucleus fueling, and mass accretion . ApJ , 620 pp. 113–125, February 2005.
- [gallimore_infrared_2010] J. F. Gallimore, A. Yzaguirre, J. Jakoboski, M. J. Stevenosky, D. J. Axon, S. A. Baum, C. L. Buchanan, M. Elitzur, M. Elvis, C. P. O'Dea, and A. Robinson. Infrared spectral energy distributions of seyfert galaxies: Spitzer space telescope observations of the 12 μm sample of active galaxies . ApJS , 187 pp. 172–211, March 2010.
- [gonzalez-martin_x-ray_2009] O. González-Martín, J. Masegosa, I. Márquez, M. Guainazzi, and E. Jiménez-Bailón. An x-ray view of 82 LINERs with chandra and XMM-Newton data . A&A , 506 pp. 1107–1121, November 2009.
- [gorjian_10_2004] V. Gorjian, M. W. Werner, T. H. Jarrett, D. M. Cole, and M. E. Ressler. 10 micron imaging of seyfert galaxies from the 12 micron sample . ApJ , 605 pp. 156–167, April 2004.
- [ho_search_1997-1] Luis C. Ho, Alexei V. Filippenko, and Wallace L. W. Sargent. A search for ``Dwarf'' seyfert nuclei. III. spectroscopic parameters and properties of the host galaxies . ApJS , 112 pp. 315, October 1997.
- [maiolino_new_1995] R. Maiolino, M. Ruiz, G. H. Rieke, and L. D. Keller. New constraints on the unified model of seyfert galaxies . ApJ , 446 pp. 561, June 1995.
- [mason_nuclear_2012] R. E. Mason, E. Lopez-Rodriguez, C. Packham, A. Alonso-Herrero, N. A. Levenson, J. Radomski, C. Ramos Almeida, L. Colina, M. Elitzur, I. Aretxaga, P. F. Roche, and N. Oi. The nuclear infrared emission of low-luminosity active galactic nuclei. AJ , 144 pp. 11, July 2012.
- [nagar_radio_2000] Neil M. Nagar, Heino Falcke, Andrew S. Wilson, and Luis C. Ho. Radio sources in low-luminosity active galactic nuclei. i. VLA detections of compact, flat-spectrum cores . ApJ , 542 pp. 186–196, October 2000.
- [pogge_narrow-line_2000] Richard W. Pogge, Dan Maoz, Luis C. Ho, and Michael Eracleous. The narrow-line regions of LINERS as resolved with the hubble space telescope . ApJ , 532 pp. 323–339, March 2000.
- [shi_9.7_2006] Y. Shi, G. H. Rieke, D. C. Hines, V. Gorjian, M. W. Werner, K. Cleary, F. J. Low, P. S. Smith, and J. Bouwman. 9.7 μm silicate features in active galactic nuclei: New insights into unification models . ApJ , 653 pp. 127–136, December 2006.
- [tommasin_spitzer-irs_2010] Silvia Tommasin, Luigi Spinoglio, Matthew A. Malkan, and Giovanni Fazio. Spitzer-IRS high-resolution spectroscopy of the 12 μm seyfert galaxies. II. results for the complete data set . ApJ , 709 pp. 1257–1283, February 2010.
- [vila_compact_1990] M. B. Vila, A. Pedlar, R. D. Davies, E. Hummel, and D. J. Axon. Compact radio components in SBC galaxies . MNRAS , 242 pp. 379–394, February 1990.
- [wu_spitzer/irs_2009] Yanling Wu, Vassilis Charmandaris, Jiasheng Huang, Luigi Spinoglio, and Silvia Tommasin. Spitzer/IRS 5-35 μm low-resolution spectroscopy of the 12 μm seyfert sample . ApJ , 701 pp. 658–676, August 2009.
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.