NGC 3312 is a highly-inclined disturbed spiral galaxy at a redshift of z = 0.0096 (D ~ 48.4 Mpc) with a little-studied LINER nucleus [veron-cetty_catalogue_2010]. No Spitzer observations are available. In the WISE images, a compact MIR nucleus embedded within spiral-like host emission is visible. We observed the nuclear region of NGC 3312 with VISIR in the PAH2 filter in 2009 but failed to clearly detect the nucleus [asmus_mid-infrared_2011]. In 2010, we followed up with PAH2_2 imaging and detected an unresolved nucleus without any further host emission. Owing to the lack of information, no conclusion about the nature of this object can be drawn.
Object | RA [deg] | Dec [deg] | Filter | Image | Info | λ_c [um] | HWHM [um] | Instr | Pix. size [arcsec/pix] | T_exp [s] | Mode | Chop Throw [arcsec] | Chop Angle [deg] | Rot [deg] | Prog Id | Cal. Star | Cal. Date | Date Obs. | Factor [mJy/ct] | Err. Factor [mJy/ct] | Cal. Flux [mJy] | Upper Lim. Gauss? | F_Gauss [mJy] | E(F_Gauss) [mJy] | Upper Lim. PSF? | F_PSF [mJy] | E(F_PSF) [mJy] | Cal. Maj. [arcsec] | Cal. Min. [arcsec] | Cal. PA. [deg] | Maj. Ax [arcsec] | Min. Ax [arcsec] | Pos. Ang. [deg] |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
NGC 3312 | 159.260417 | -27.565000 | PAH2 | NGC3312_PAH2_2009-07-15T22-40.fits | [Details] | 11.25 | 0.59 | VISIR | 0.075 | 725.0 | PARA | 8.0 | 45.0 | 0.0 | 083.B-0536(C) | HD99167 | 2009-07-15T23:02:24Z | 2009-07-15T22:40:48Z | 0.01271 | 0.00017 | 15044.4 | True | 8.4 | N/A | True | 8.4 | N/A | 0.4 | 0.38 | 162.0 | N/A | N/A | N/A |
NGC 3312 | 159.260417 | -27.565000 | PAH2_2 | NGC3312_PAH2_2_2010-12-29T07-18.fits | [Details] | 11.88 | 0.37 | VISIR | 0.075 | 1986.0 | PARA | 8.0 | 45.0 | 0.0 | 086.B-0349(C) | HD75691 | 2010-12-29T07:12:00Z | 2010-12-29T07:17:46Z | 0.01876 | 0.00016 | 10819.2 | False | 7.7 | 1.0 | False | 7.2 | 1.0 | 0.3 | 0.3 | 65.0 | 0.34 | 0.29 | 85.0 |