Sasmirala Individual Information for NGC 788
Description
NGC 788 is a low-inclination spiral galaxy at a redshift of z = 0.0136 (D ~57.2 Mpc) with a Sy 2 nucleus with polarized broad emission lines [kay_hidden_1998]. The AGN was discovered by [huchra_new_1982] and belongs to the nine-month BAT AGN sample.. At radio wavelengths the nucleus is slightly elongated (PA~ 62∘; [nagar_radio_1999]). It also possesses visible ionization cones [martini_circumnuclear_2003]. NGC 788 has observed with Spitzer/IRAC, IRS and MIPS and appears as a compact MIR nucleus. In the IRAC 8.0 μm image the host galaxy is weakly detected as well. The IRS LR staring-mode spectrum exhibits silicate 10 μm absorption, weak PAH emission and an emission peak at ~ 18 μm (see also [deo_mid-infrared_2009, weaver_mid-infrared_2010]). NGC 788 was observed with VISIR in five N-band filters in 2008, and an unresolved MIR nucleus was detected in all cases (unpublished, to our knowledge). The nuclear VISIR photometry provides fluxes consistent with the Spitzer spectrophotometry.
- [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.
- [huchra_new_1982] J. P. Huchra, W. F. Wyatt, and M. Davis. New bright seyfert galaxies . AJ , 87 pp. 1628–1633, December 1982.
- [kay_hidden_1998] Laura E. Kay and Edward C. Moran. A hidden broad-line region in the weak seyfert 2 galaxy NGC 788 . PASP , 110 pp. 1003–1006, September 1998.
- [martini_circumnuclear_2003] Paul Martini, Michael W. Regan, John S. Mulchaey, and Richard W. Pogge. Circumnuclear dust in nearby active and inactive galaxies. i. data . ApJS , 146 pp. 353–406, June 2003.
- [nagar_radio_1999] Neil M. Nagar, Andrew S. Wilson, John S. Mulchaey, and Jack F. Gallimore. Radio structures of seyfert galaxies. VIII. a distance- and magnitude-limited sample of early-type galaxies . ApJS , 120 pp. 209–245, February 1999.
- [weaver_mid-infrared_2010] K. A. Weaver, M. Meléndez, R. F. Mushotzky, S. Kraemer, K. Engle, E. Malumuth, J. Tueller, C. Markwardt, C. T. Berghea, R. P. Dudik, L. M. Winter, and L. Armus. Mid-infrared properties of the swift burst alert telescope active galactic nuclei sample of the local universe. i. emission-line diagnostics . ApJ , 716 pp. 1151–1165, June 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.