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Date and Time of the Query: 2019-06-20 T10:34:29 PDT
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For refcode 2005ApJ...633...86S:
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2005ApJ...633...86S The Link between Star Formation and Accretion in LINERs: A Comparison with Other Active Galactic Nucleus Subclasses S. Satyapal, R. P. Dudik, B. O'Halloran, and M. Gliozzi Abstract. We present archival high-resolution X-ray imaging observations of 25 nearby LINERs observed by ACIS on board Chandra. This sample builds on our previously published proprietary and archival X-ray observations and includes the complete set of LINERs with published black hole masses and FIR luminosities that have been observed by Chandra. Of the 82 LINERs observed by Chandra, 41 (50%) display hard nuclear cores consistent with an AGN. The nuclear 2 -- 10 keV luminosities of these AGN-LINERs range from ~2x10^38^ to ~1x10^44^ ergs s^-1^. Reinforcing our previous work, we find a significant correlation between the Eddington ratio, L_bol_/L_Edd_, and the FIR luminosity, L_FIR_, as well as the IR brightness ratio, L_FIR_/L_B_, in the host galaxy of AGN-LINERs that extends over 7 orders of magnitude in L_bol_/L_Edd_. Combining our AGN-LINER sample with galaxies from other AGN subclasses, we find that this correlation is reinforced in a sample of 129 AGNs, extending over almost 9 orders of magnitude in L_bol_/L_Edd_. Using archival and previously published observations of the 6.2 microns PAH feature from ISO, we find that it is unlikely that dust heating by the AGN dominates the FIR luminosity in our sample of AGNs. Our results may therefore imply a fundamental link between the mass accretion rate (M^dot^), as measured by the Eddington ratio, and the star formation rate (SFR), as measured by the FIR luminosity. Apart from the overall correlation, we find that the different AGN subclasses occupy distinct regions in the L_FIR_ and L_bol_/L_Edd_ plane. Assuming a constant radiative efficiency for accretion, our results may imply a variation in the SFR/M^dot^ ratio as a function of AGN activity level, a result that may have significant consequences for our understanding of galaxy formation and black hole growth. Key words: Galaxies: Active, Galaxies: Starburst, Infrared: Galaxies, X-Rays: Galaxies =========================================================================== 2006ApJ...642..615S Erratum: "The Link between Star Formation and Accretion in LINERs: A Comparison with Other Active Galactic Nucleus Subclasses" (2005ApJ...633...86S" [2005]) S. Satyapal, R. P. Dudik, B. O'Halloran, and M. Gliozzi In Table 4, for NGC 3245, the value of logL_X,generic_ (col. [6]) should be 39.16, not 36.16. All other values in the table are correct, and the correct value was used in all of the calculations and plots. In the last section of Table 2, "Narrow-Line Type 1 Seyfert Galaxies,'' and in this section only, the units for column (4), the bolometric luminosities, are Watts, not ergs s^-1^, as in the rest of the table. In equation (6) {see text} The correct formula was used in all calculations and plots. We would also like to reference A. M. Hopkins et al. (ApJ, 633, 86 [2005]), in addition to Bell (2003), for this formula. =========================================================================
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