Sasmirala Individual Information for NGC 4785
Description
NGC 4785 is an inclined barred spiral galaxy at a redshift of z = 0.0123 (D ~ 59 Mpc) with a very little-studied Sy 2 nucleus [veron-cetty_catalogue_2010]. No high-angular resolution X-ray and radio observations have been published. It was not detected with HEAO1 [polletta_multiwavelength_1996]. We conservatively treat NGC 4785 as an uncertain AGN. No Spitzer observations are available for NGC 4785. The WISE images show the extended flattened host emission without a clearly separable unresolved nuclear component. The nuclear region of NGC 4785 was observed with VISIR in the PAH2 filter in 2005 but no nucleus was detected (unpublished, to our knowledge). This lack of data prohibits any conclusions about the presence of a weak AGN in NGC 4785.
- [polletta_multiwavelength_1996] M. Polletta, L. Bassani, G. Malaguti, G. G. C. Palumbo, and E. Caroli. A multiwavelength catalog of seyfert 2 galaxies observed in the 2–10 keV energy band . ApJS , 106 pp. 399, October 1996.
- [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.
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.