Sasmirala Individual Information for 3C 382
Description
3C 382 is a flat-spectrum FR II radio source identified with the elliptical galaxy Z 173-14 [martel_hubble_1999] at a redshift of z = 0.0579 (D ~ 267 Mpc). It contains an AGN with a Sy 1 classification [veron-cetty_catalogue_2010] that is a member of the nine-month BAT AGN sample. 3C 382 features supergalactic-scale biconical radio lobes with a prominent jet extending to the north-eastern lobe (PA~ 50∘; e.g., [black_study_1992]). The first N-band photometry of 3C 382 was performed in 1980 [puschell_visual-infrared_1981], followed by [heckman_infrared_1983] and [impey_infrared_1990]. The MIR emission level has monotonically increased over the last few decades. The ISO/ISOCAM photometry from 1996 provides a ~ 50% higher flux than that from 1980 [clavel_2.5-11_2000, siebenmorgen_isocam_2004, ramos_almeida_mid-infrared_2007]. The Spitzer/IRS, IRAC and MIPS data taken in 2005 again exhibits ~ 50% higher fluxes (see [dicken_origin_2010] for MIPS 24 μm). 3C 382 is nearly unresolved in all Spitzer images. The IRS LR staring-mode spectrum shows strong silicate emission features and a blue spectral slope in νFν-space but no PAH or other line emission (see also [dicken_spitzer_2012]). Our COMICS N11.7 observation from 2009 shows an unresolved nuclear source, and the corresponding nuclear photometry is ~ 4% higher and, thus, is still consistent with the Spitzer spectrophotometry. Therefore, the silicate emission originates in the projected subarcsecond-scale nucleus, and thermal dust emission contributes significantly to the nuclear MIR emission. We correct our 12 μm continuum emission estimate for the strong silicate emission using the IRS spectrum.
- [black_study_1992] A. R. S. Black, S. A. Baum, J. P. Leahy, R. A. Perley, J. M. Riley, and P. A. G. Scheuer. A study of FRII radio galaxies with z less than 0.15. i - high-resolution maps of eight sources at 3.6 CM . MNRAS , 256 pp. 186–208, May 1992.
- [clavel_2.5-11_2000] J. Clavel, B. Schulz, B. Altieri, P. Barr, P. Claes, A. Heras, K. Leech, L. Metcalfe, and A. Salama. 2.5-11 micron spectroscopy and imaging of AGNs. implication for unification schemes . A&A , 357 pp. 839–849, May 2000.
- [dicken_origin_2010] D. Dicken, C. Tadhunter, D. Axon, A. Robinson, R. Morganti, and P. Kharb. The origin of the infrared emission in radio galaxies. III. analysis of 3CRR objects . ApJ , 722 pp. 1333–1341, October 2010.
- [dicken_spitzer_2012] D. Dicken, C. Tadhunter, D. Axon, R. Morganti, A. Robinson, M. B. N. Kouwenhoven, H. Spoon, P. Kharb, K. J. Inskip, J. Holt, C. Ramos Almeida, and N. P. H. Nesvadba. Spitzer mid-IR spectroscopy of powerful 2 jy and 3CRR radio galaxies. i. evidence against a strong starburst-AGN connection in radio-loud AGN . ApJ , 745 pp. 172, February 2012.
- [heckman_infrared_1983] T. M. Heckman, M. J. Lebofsky, G. H. Rieke, and W. van Breugel. An infrared and optical investigation of galactic nuclei with compact radio sources . ApJ , 272 pp. 400–410, September 1983.
- [impey_infrared_1990] C. D. Impey, C. G. Wynn-Williams, and E. E. Becklin. Infrared studies of elliptical galaxies. II - a radio-selected sample . ApJ , 356 pp. 62–74, June 1990.
- [martel_hubble_1999] André R. Martel, Stefi A. Baum, William B. Sparks, Eric Wyckoff, John A. Biretta, Daniel Golombek, Ferdinando D. Macchetto, Sigrid de Koff, Patrick J. McCarthy, and George K. Miley. Hubble space telescope snapshot survey of 3CR radio source counterparts. III. radio galaxies with z<0.1 . ApJS , 122 pp. 81–108, May 1999.
- [puschell_visual-infrared_1981] J. J. Puschell. Visual-infrared variations in the broad-line radio galaxy 3C 382 . AJ , 86 pp. 16–18, January 1981.
- [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.
- [siebenmorgen_isocam_2004] R. Siebenmorgen, W. Freudling, E. Krügel, and M. Haas. ISOCAM survey and dust models of 3CR radio galaxies and quasars . A&A , 421 pp. 129–145, July 2004.
- [veron-cetty_catalogue_2010] M.-P. Véron-Cetty and P. Véron. A catalogue of quasars and active nuclei: 13th edition . A&A , 518 pp. 10, July 2010.
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.