IRAS 00188-0856 is an ultra-luminous infrared galaxy at a redshift of z = 0.1284 (D ~ 574 Mpc) with an optical nuclear classification as a LINER [kim_optical_1995, veilleux_optical_1995, veilleux_new_1999] or as borderline Sy 2/starburst [yuan_role_2010]. Here, we treat it as AGN/starburst composite. It was observed with Spitzer/IRAC and IRS and appears nearly unresolved in all corresponding images. The IRS LR staring-mode spectrum shows extremely deep silicate 10 μm absorption and silicate 18 μm absorption with PAH emission and a steep red spectral slope in νFν-space (see also [imanishi_spitzer_2007]). The MIR SED thus indicates strong star formation but also a highly obscured active nucleus in agreement with the results of [imanishi_spitzer_2007]. IRAS 00188-0856 was observed with T-ReCS in the Qa filter in 2009 and a compact MIR nucleus was weakly detected [imanishi_subaru_2011]. The low S/N prevents us from the extension analysis. Our measured nuclear Qa flux is consistent with the value from [imanishi_subaru_2011] and matches well the Spitzer spectrophotometry. Therefore, we use the IRS spectrum to compute 12 and 18 μm continuum emission estimates, which are corrected for the silicate features.
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] |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
IRAS 00188-0856 | 5.360417 | -8.657222 | Qa | IRAS00188-0856_Qa_2009-09-09T03-28.fits | [Details] | 18.3 | 0.76 | TRECS | 0.09 | 1853.0 | PARA | 15.0 | -90.0 | -90.0 | GS-2009B-C-3 | HD2637 | 2009-09-09T03:11:31Z | 2009-09-09T03:28:48Z | 0.06482 | 0.00101 | 2555.0 | False | 73.9 | 1.3 | False | 89.1 | 9.8 | 0.71 | 0.64 | 76.0 | 0.63 | 0.59 | 147.0 |