J/MNRAS/487/1823 MIR spectra of AGNs heating molecular gas (Lambrides+, 2019)
Mid-infrared spectroscopic evidence for AGN heating warm molecular gas.
Lambrides E.L., Petric A.O., Tchernyshyov K., Zakamska N.L., Watts D.J.
<Mon. Not. R. Astron. Soc., 487, 1823-1843 (2019)>
=2019MNRAS.487.1823L 2019MNRAS.487.1823L (SIMBAD/NED BibCode)
ADC_Keywords: Active gal. nuclei ; Galaxies, IR ; Galaxies, spectra ;
Interstellar medium
Keywords: techniques: spectroscopic - surveys - galaxies: active -
galaxies: ISM - galaxies: starburst - infrared: galaxies
Abstract:
We analyse 2015 mid-infrared (MIR) spectra of galaxies observed with
Spitzer's Infrared Spectrograph, including objects with growing
supermassive black holes (SMBHs) and objects where most of the
infrared emission originates from newly formed stars. We determine if
and how accreting SMBHs at the centre of galaxies - known as active
galactic nuclei (AGNs) - heat and ionize their host galaxies' dust and
molecular gas. We use four MIR diagnostics to estimate the
contribution of the AGN to the total MIR emission. We refer to
galaxies whose AGNs contribute more than 50 per cent of the total MIR
emission as AGN dominated. We compare the relative strengths of
polycyclic aromatic hydrocarbon (PAH) emission features and find that
PAH grains in AGN-dominated sources have a wider range of sizes and
fractional ionizations than PAH grains in non-AGN-dominated sources.
We measure rotational transitions of H2 and estimate H2 excitation
temperatures and masses for individual targets, H2 excitation
temperatures for spectra stacked by their AGN contribution to the MIR,
and the H2 excitation temperature distributions via a hierarchical
Bayesian model. Using the hierarchical Bayesian model, we find an
average 200K difference between the excitation temperatures of the
H2S(5) and H2S(7) pure rotational molecular hydrogen transition
pair in AGN-dominated versus non-AGN-dominated galaxies. Our findings
suggest that AGNs impact the interstellar medium of their host
galaxies.
Description:
The Infrared Spectrograph (IRS) aboard the Spitzer Space Telescope has
four separate modules that cover 5.2-3.8µm: Short-Low (SL),
Short-High (SH), Long-Low (LL), and Long-High (LH) (Houck et al.
2004ApJS..154...18H 2004ApJS..154...18H). Here, we amass spectra obtained with the
low-resolution modules, SL (60<R<128) and LL (57<R<126). Each
low-resolution module is divided into two in-line sub-slits:
SL1(7.46um<λ<14.29um), SL2(5.13um<λ<14.29um),
LL1(19.91um<λ<39.90um), and LL2(13.90um<λ<21.27um).
Each observation has an associated unique identifier, an AORkey, which
we used to find the observation within the Spitzer mission, including
coordinates and observation type. The Spitzer Space Telescope team
stores this information from all Spitzer observations on the NASA/IPAC
Infrared Science Archive (SHA). We use a technique known as 'web
scraping' to extract data from websites by parsing the html source of
the website. We extract all observing programs that contain the
following keywords in their abstract text: AGN, Radio Galaxy, QSO,
Quasar, Starburst Galaxy, and ULIRG/LIRG.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 132 1923 Sample properties
table2.dat 386 1923 Molecular hydrogen results
table3.dat 225 1923 PAH results
spectra.dat 3147 2533 Stacked Spitzer spectra binned by EQW[PAH6.2um]
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Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 8 I8 --- AORkey Spizter AORkey identifier
10- 25 F16.12 deg RAdeg Right ascension (J2000)
27- 43 F17.13 deg DEdeg Declination (J2000)
45- 49 F5.1 --- Det Level of the detection as provided by the
CASSIS reduction pipeline
51- 68 F18.16 --- z Redshift
70- 83 F14.11 --- SL1-LL2 SL1-LL2 scale factor (1)
85- 90 F6.3 mag W1mag ? WISE W1 (3.4um) band magnitude (2)
92- 97 F6.3 mag W2mag ? WISE W2 (4.6um) band magnitude (2)
99-104 F6.3 mag W3mag ? WISE W3 (12um) band magnitude (2)
106-111 F6.3 mag W4mag ? WISE W4 (22um) band magnitude (2)
113-118 F6.3 mag Jmag ? 2MASS J band magnitude (3)
120-125 F6.3 mag Hmag ? 2MASS H band magnitude (3)
127-132 F6.3 mag Ksmag ? 2MASS Ks band magnitude (3)
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Note (1): In 25 per cent of our spectra, we find a difference between the flux
in the spectral region of 13.9-14.2µm as measured in the Short-Low
(SL) and Long-Low (LL) data, respectively. This is partially due to
the different widths of the SL and LL slits (3.7arcsec and 10.5arcsec
respectively).
We use the overlap region to scale the SL spectra to the LL
measurements. We provide the resultant scale factors here.
Note (2): Magnitudes from Wright et al. (2010AJ....140.1868W 2010AJ....140.1868W)
Note (3): Magnitudes from Skrutskie et al. (2006AJ....131.1163S 2006AJ....131.1163S, Cat. VII/233)
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Byte-by-byte Description of file: table2.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 8 I8 --- AORkey Spizter AORkey identifier
10- 26 E17.15 10-7W LH2S0 ? H2S(0) line luminosity (1)
28- 44 E17.15 10-7W e_LH2S0 ? Error on LH2S0 (G1)
46- 62 E17.15 10-7W B_LH2S0 ? Upper bound of LH2S0 (G2)
64- 80 E17.15 10-7W LH2S1 ? H2S(1) line luminosity (1)
82- 98 E17.15 10-7W e_LH2S1 ? Error on LH2S1 (G1)
100-116 E17.15 10-7W B_LH2S1 ? Upper bound of LH2S1 (G2)
118-134 E17.15 10-7W LH2S2 ? H2S(G1) line luminosity (1)
136-152 E17.15 10-7W e_LH2S2 ? Error on LH2S2 (G1)
154-170 E17.15 10-7W B_LH2S2 ? Upper bound of LH2S2 (G2)
172-188 E17.15 10-7W LH2S3 ? H2S(G2) line luminosity (1)
190-206 E17.15 10-7W e_LH2S3 ? Error on LH2S3 (G1)
208-224 E17.15 10-7W B_LH2S3 ? Upper bound of LH2S3 (G2)
226-242 E17.15 10-7W LH2S5 ? H2S(5) line luminosity (1)
244-260 E17.15 10-7W e_LH2S5 ? Error on LH2S5 (G1)
262-278 E17.15 10-7W B_LH2S5 ? Upper bound of LH2S5 (G2)
280-296 E17.15 10-7W LH2S6 ? H2S(6) line luminosity (1)
298-314 E17.15 10-7W e_LH2S6 ? Error on LH2S6 (G1)
316-332 E17.15 10-7W B_LH2S6 ? Upper bound of LH2S6 (G2)
334-350 E17.15 10-7W LH2S7 ? H2S(7) line luminosity (1)
352-368 E17.15 10-7W e_LH2S7 ? Error on LH2S7 (G1)
370-386 E17.15 10-7W B_LH2S7 ? Upper bound of LH2S7 (G2)
--------------------------------------------------------------------------------
Note (1): We denote the H2 emission lines as H2S(J) for a transition from
rotational level J+2 to J
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table3.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 8 I8 --- AORkey Spizter AORkey identifier
10- 26 F17.14 um EW6.2 ? Equivalent width of the 6.2µm PAH band
28- 44 F17.14 um B_EW6.2 ? Upper bound on EW6.2 (G2)
46- 62 E17.15 10-7W L6.2 ? PAH 6.2µm luminosity
64- 80 E17.15 10-7W e_L6.2 ? Error on L6.2 (G1)
82- 98 E17.15 10-7W B_L6.2 ? Upper bound on L6.2 (G2)
100-116 E17.15 10-7W L7.7 ? PAH 7.7µm luminosity
118-134 E17.15 10-7W e_L7.7 ? Error on L7.7 (G1)
136-152 E17.15 10-7W B_L7.7 ? Upper bound on L7.7 (G2)
154-170 E17.15 10-7W L11.3 ? PAH 11.3µm luminosity
172-188 E17.15 10-7W e_L11.3 ? Error on L11.3 (G1)
190-206 E17.15 10-7W B_L11.3 ? Upper bound on L11.3 (G2)
208-225 F18.15 10-7W tau9.7 ? Silicate 9.7µm feature strength
--------------------------------------------------------------------------------
Byte-by-byte Description of file: spectra.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 5 F5.2 um lambda Rest wavelenght
7- 22 F16.14 --- F0.003 Normalized flux density for
EQW[PAH6.2um]=0.003um (1)
24- 40 F17.15 --- e_F0.003 Error on F0.003
42- 56 F15.13 --- F0.004 Normalized flux density for
EQW[PAH6.2um]=0.004um (1)
58- 74 F17.15 --- e_F0.004 Error on F0.004
76- 90 F15.13 --- F0.005 Normalized flux density for
EQW[PAH6.2um]=0.005um (1)
92-107 F16.14 --- e_F0.005 Error on F0.005
109-123 F15.13 --- F0.007 Normalized flux density for
EQW[PAH6.2um]=0.007um (1)
125-140 F16.14 --- e_F0.007 Error on F0.007
142-156 F15.13 --- F0.009 Normalized flux density for
EQW[PAH6.2um]=0.009um (1)
158-173 F16.14 --- e_F0.009 Error on F0.009
175-189 F15.13 --- F0.01 Normalized flux density for
EQW[PAH6.2um]=0.01um (1)
191-206 F16.14 --- e_F0.01 Error on F0.01
208-223 F16.14 --- F0.013 Normalized flux density for
EQW[PAH6.2um]=0.013um (1)
225-241 F17.15 --- e_F0.013 Error on F0.013
243-258 F16.14 --- F0.014 Normalized flux density for
EQW[PAH6.2um]=0.014um (1)
260-276 F17.15 --- e_F0.014 Error on F0.014
278-292 F15.13 --- F0.016 Normalized flux density for
EQW[PAH6.2um]=0.016um (1)
294-309 F16.14 --- e_F0.016 Error on F0.016
311-325 F15.13 --- F0.018 Normalized flux density for
EQW[PAH6.2um]=0.018um (1)
327-343 F17.15 --- e_F0.018 Error on F0.018
345-359 F15.13 --- F0.019 Normalized flux density for
EQW[PAH6.2um]=0.019um (1)
361-376 F16.14 --- e_F0.019 Error on F0.019
378-392 F15.13 --- F0.024 Normalized flux density for
EQW[PAH6.2um]=0.024um (1)
394-409 F16.14 --- e_F0.024 Error on F0.024
411-425 F15.13 --- F0.027 Normalized flux density for
EQW[PAH6.2um]=0.027um (1)
427-442 F16.14 --- e_F0.027 Error on F0.027
444-458 F15.13 --- F0.03 Normalized flux density for
EQW[PAH6.2um]=0.03um (1)
460-475 F16.14 --- e_F0.03 Error on F0.03
477-491 F15.13 --- F0.034 Normalized flux density for
EQW[PAH6.2um]=0.034um (1)
493-508 F16.14 --- e_F0.034 Error on F0.034
510-524 F15.13 --- F0.038 Normalized flux density for
EQW[PAH6.2um]=0.038um (1)
526-541 F16.14 --- e_F0.038 Error on F0.038
543-557 F15.13 --- F0.04 Normalized flux density for
EQW[PAH6.2um]=0.04um (1)
559-574 F16.14 --- e_F0.04 Error on F0.04
576-590 F15.13 --- F0.043 Normalized flux density for
EQW[PAH6.2um]=0.043um (1)
592-607 F16.14 --- e_F0.043 Error on F0.043
609-623 F15.13 --- F0.048 Normalized flux density for
EQW[PAH6.2um]=0.048um (1)
625-640 F16.14 --- e_F0.048 Error on F0.048
642-657 F16.14 --- F0.05 Normalized flux density for
EQW[PAH6.2um]=0.05um (1)
659-675 F17.15 --- e_F0.05 Error on F0.05
677-691 F15.13 --- F0.054 Normalized flux density for
EQW[PAH6.2um]=0.054um (1)
693-708 F16.14 --- e_F0.054 Error on F0.054
710-724 F15.13 --- F0.06 Normalized flux density for
EQW[PAH6.2um]=0.06um (1)
726-741 F16.14 --- e_F0.06 Error on F0.06
743-759 F17.15 --- F0.066 Normalized flux density for
EQW[PAH6.2um]=0.066um (1)
761-776 F16.14 --- e_F0.066 Error on F0.066
778-792 F15.13 --- F0.084 Normalized flux density for
EQW[PAH6.2um]=0.084um (1)
794-809 F16.14 --- e_F0.084 Error on F0.084
811-825 F15.13 --- F0.093 Normalized flux density for
EQW[PAH6.2um]=0.093um (1)
827-842 F16.14 --- e_F0.093 Error on F0.093
844-859 F16.14 --- F0.097 Normalized flux density for
EQW[PAH6.2um]=0.097um (1)
861-876 F16.14 --- e_F0.097 Error on F0.097
878-892 F15.13 --- F0.109 Normalized flux density for
EQW[PAH6.2um]=0.109um (1)
894-909 F16.14 --- e_F0.109 Error on F0.109
911-925 F15.13 --- F0.116 Normalized flux density for
EQW[PAH6.2um]=0.116um (1)
927-942 F16.14 --- e_F0.116 Error on F0.116
944-959 F16.14 --- F0.127 Normalized flux density for
EQW[PAH6.2um]=0.127um (1)
961-976 F16.14 --- e_F0.127 Error on F0.127
978-992 F15.13 --- F0.134 Normalized flux density for
EQW[PAH6.2um]=0.134um (1)
994-1009 F16.14 --- e_F0.134 Error on F0.134
1011-1025 F15.13 --- F0.146 Normalized flux density for
EQW[PAH6.2um]=0.146um (1)
1027-1042 F16.14 --- e_F0.146 Error on F0.146
1044-1058 F15.13 --- F0.156 Normalized flux density for
EQW[PAH6.2um]=0.156um (1)
1060-1075 F16.14 --- e_F0.156 Error on F0.156
1077-1091 F15.13 --- F0.175 Normalized flux density for
EQW[PAH6.2um]=0.175um (1)
1093-1108 F16.14 --- e_F0.175 Error on F0.175
1110-1125 F16.14 --- F0.183 Normalized flux density for
EQW[PAH6.2um]=0.183um (1)
1127-1143 F17.15 --- e_F0.183 Error on F0.183
1145-1160 F16.14 --- F0.19 Normalized flux density for
EQW[PAH6.2um]=0.19um (1)
1162-1178 F17.15 --- e_F0.19 Error on F0.19
1180-1194 F15.13 --- F0.2 Normalized flux density for
EQW[PAH6.2um]=0.2um (1)
1196-1211 F16.14 --- e_F0.2 Error on F0.2
1213-1227 F15.13 --- F0.221 Normalized flux density for
EQW[PAH6.2um]=0.221um (1)
1229-1244 F16.14 --- e_F0.221 Error on F0.221
1246-1261 F16.14 --- F0.24 Normalized flux density for
EQW[PAH6.2um]=0.24um (1)
1263-1279 F17.15 --- e_F0.24 Error on F0.24
1281-1295 F15.13 --- F0.251 Normalized flux density for
EQW[PAH6.2um]=0.251um (1)
1297-1312 F16.14 --- e_F0.251 Error on F0.251
1314-1329 F16.14 --- F0.264 Normalized flux density for
EQW[PAH6.2um]=0.264um (1)
1331-1346 F16.14 --- e_F0.264 Error on F0.264
1348-1363 F16.14 --- F0.278 Normalized flux density for
EQW[PAH6.2um]=0.278um (1)
1365-1381 F17.15 --- e_F0.278 Error on F0.278
1383-1398 F16.14 --- F0.296 Normalized flux density for
EQW[PAH6.2um]=0.296um (1)
1400-1416 F17.15 --- e_F0.296 Error on F0.296
1418-1432 F15.13 --- F0.321 Normalized flux density for
EQW[PAH6.2um]=0.321um (1)
1434-1449 F16.14 --- e_F0.321 Error on F0.321
1451-1466 F16.14 --- F0.347 Normalized flux density for
EQW[PAH6.2um]=0.347um (1)
1468-1483 F16.14 --- e_F0.347 Error on F0.347
1485-1500 F16.14 --- F0.389 Normalized flux density for
EQW[PAH6.2um]=0.389um (1)
1502-1518 F17.15 --- e_F0.389 Error on F0.389
1520-1534 F15.13 --- F0.407 Normalized flux density for
EQW[PAH6.2um]=0.407um (1)
1536-1552 F17.15 --- e_F0.407 Error on F0.407
1554-1569 F16.14 --- F0.445 Normalized flux density for
EQW[PAH6.2um]=0.445um (1)
1571-1587 F17.15 --- e_F0.445 Error on F0.445
1589-1604 F16.14 --- F0.479 Normalized flux density for
EQW[PAH6.2um]=0.479um (1)
1606-1621 F16.14 --- e_F0.479 Error on F0.479
1623-1637 F15.13 --- F0.515 Normalized flux density for
EQW[PAH6.2um]=0.515um (1)
1639-1654 F16.14 --- e_F0.515 Error on F0.515
1656-1674 F19.17 --- F0.543 Normalized flux density for
EQW[PAH6.2um]=0.543um (1)
1676-1695 F20.18 --- e_F0.543 Error on F0.543
1697-1712 F16.14 --- F0.587 Normalized flux density for
EQW[PAH6.2um]=0.587um (1)
1714-1729 F16.14 --- e_F0.587 Error on F0.587
1731-1746 F16.14 --- F0.615 Normalized flux density for
EQW[PAH6.2um]=0.615um (1)
1748-1764 F17.15 --- e_F0.615 Error on F0.615
1766-1781 F16.14 --- F0.658 Normalized flux density for
EQW[PAH6.2um]=0.658um (1)
1783-1798 F16.14 --- e_F0.658 Error on F0.658
1800-1815 F16.14 --- F0.696 Normalized flux density for
EQW[PAH6.2um]=0.696um (1)
1817-1832 F16.14 --- e_F0.696 Error on F0.696
1834-1848 F15.13 --- F0.715 Normalized flux density for
EQW[PAH6.2um]=0.715um (1)
1850-1865 F16.14 --- e_F0.715 Error on F0.715
1867-1882 F16.14 --- F0.761 Normalized flux density for
EQW[PAH6.2um]=0.761um (1)
1884-1899 F16.14 --- e_F0.761 Error on F0.761
1901-1917 F17.15 --- F0.798 Normalized flux density for
EQW[PAH6.2um]=0.798um (1)
1919-1934 F16.14 --- e_F0.798 Error on F0.798
1936-1952 F17.15 --- F0.818 Normalized flux density for
EQW[PAH6.2um]=0.818um (1)
1954-1970 F17.15 --- e_F0.818 Error on F0.818
1972-1987 F16.14 --- F0.849 Normalized flux density for
EQW[PAH6.2um]=0.849um (1)
1989-2004 F16.14 --- e_F0.849 Error on F0.849
2006-2021 F16.14 --- F0.885 Normalized flux density for
EQW[PAH6.2um]=0.885um (1)
2023-2038 F16.14 --- e_F0.885 Error on F0.885
2040-2055 F16.14 --- F0.907 Normalized flux density for
EQW[PAH6.2um]=0.907um (1)
2057-2073 F17.15 --- e_F0.907 Error on F0.907
2075-2090 F16.14 --- F0.922 Normalized flux density for
EQW[PAH6.2um]=0.922um (1)
2092-2108 F17.15 --- e_F0.922 Error on F0.922
2110-2125 F16.14 --- F0.942 Normalized flux density for
EQW[PAH6.2um]=0.942um (1)
2127-2143 F17.15 --- e_F0.942 Error on F0.942
2145-2160 F16.14 --- F0.952 Normalized flux density for
EQW[PAH6.2um]=0.952um (1)
2162-2177 F16.14 --- e_F0.952 Error on F0.952
2179-2195 F17.15 --- F0.974 Normalized flux density for
EQW[PAH6.2um]=0.974um (1)
2197-2212 F16.14 --- e_F0.974 Error on F0.974
2214-2229 F16.14 --- F0.988 Normalized flux density for
EQW[PAH6.2um]=0.988um (1)
2231-2246 F16.14 --- e_F0.988 Error on F0.988
2248-2263 F16.14 --- F1.015 Normalized flux density for
EQW[PAH6.2um]=1.015um (1)
2265-2281 F17.15 --- e_F1.015 Error on F1.015
2283-2298 F16.14 --- F1.024 Normalized flux density for
EQW[PAH6.2um]=1.024um (1)
2300-2315 F16.14 --- e_F1.024 Error on F1.024
2317-2332 F16.14 --- F1.042 Normalized flux density for
EQW[PAH6.2um]=1.042um (1)
2334-2349 F16.14 --- e_F1.042 Error on F1.042
2351-2370 F20.18 --- F1.057 Normalized flux density for
EQW[PAH6.2um]=1.057um (1)
2372-2388 F17.15 --- e_F1.057 Error on F1.057
2390-2405 F16.14 --- F1.077 Normalized flux density for
EQW[PAH6.2um]=1.077um (1)
2407-2422 F16.14 --- e_F1.077 Error on F1.077
2424-2438 F15.13 --- F1.106 Normalized flux density for
EQW[PAH6.2um]=1.106um (1)
2440-2455 F16.14 --- e_F1.106 Error on F1.106
2457-2472 F16.14 --- F1.139 Normalized flux density for
EQW[PAH6.2um]=1.139um (1)
2474-2490 F17.15 --- e_F1.139 Error on F1.139
2492-2506 F15.13 --- F1.16 Normalized flux density for
EQW[PAH6.2um]=1.16um (1)
2508-2523 F16.14 --- e_F1.16 Error on F1.16
2525-2542 F18.16 --- F1.183 Normalized flux density for
EQW[PAH6.2um]=1.183um (1)
2544-2561 F18.16 --- e_F1.183 Error on F1.183
2563-2578 F16.14 --- F1.214 Normalized flux density for
EQW[PAH6.2um]=1.214um (1)
2580-2595 F16.14 --- e_F1.214 Error on F1.214
2597-2612 F16.14 --- F1.257 Normalized flux density for
EQW[PAH6.2um]=1.257um (1)
2614-2629 F16.14 --- e_F1.257 Error on F1.257
2631-2646 F16.14 --- F1.289 Normalized flux density for
EQW[PAH6.2um]=1.289um (1)
2648-2664 F17.15 --- e_F1.289 Error on F1.289
2666-2681 F16.14 --- F1.327 Normalized flux density for
EQW[PAH6.2um]=1.327um (1)
2683-2698 F16.14 --- e_F1.327 Error on F1.327
2700-2715 F16.14 --- F1.377 Normalized flux density for
EQW[PAH6.2um]=1.377um (1)
2717-2732 F16.14 --- e_F1.377 Error on F1.377
2734-2749 F16.14 --- F1.403 Normalized flux density for
EQW[PAH6.2um]=1.403um (1)
2751-2767 F17.15 --- e_F1.403 Error on F1.403
2769-2785 F17.15 --- F1.46 Normalized flux density for
EQW[PAH6.2um]=1.46um (1)
2787-2802 F16.14 --- e_F1.46 Error on F1.46
2804-2821 F18.16 --- F1.5 Normalized flux density for
EQW[PAH6.2um]=1.5um (1)
2823-2839 F17.15 --- e_F1.5 Error on F1.5
2841-2856 F16.14 --- F1.54 Normalized flux density for
EQW[PAH6.2um]=1.54um (1)
2858-2873 F16.14 --- e_F1.54 Error on F1.54
2875-2890 F16.14 --- F1.613 Normalized flux density for
EQW[PAH6.2um]=1.613um (1)
2892-2907 F16.14 --- e_F1.613 Error on F1.613
2909-2924 F16.14 --- F1.701 Normalized flux density for
EQW[PAH6.2um]=1.701um (1)
2926-2941 F16.14 --- e_F1.701 Error on F1.701
2943-2958 F16.14 --- F1.848 Normalized flux density for
EQW[PAH6.2um]=1.848um (1)
2960-2975 F16.14 --- e_F1.848 Error on F1.848
2977-2992 F16.14 --- F1.909 Normalized flux density for
EQW[PAH6.2um]=1.909um (1)
2994-3009 F16.14 --- e_F1.909 Error on F1.909
3011-3026 F16.14 --- F2.068 Normalized flux density for
EQW[PAH6.2um]=2.068um (1)
3028-3043 F16.14 --- e_F2.068 Error on F2.068
3045-3061 F17.15 --- F2.337 Normalized flux density for
EQW[PAH6.2um]=2.337um (1)
3063-3078 F16.14 --- e_F2.337 Error on F2.337
3080-3095 F16.14 --- F2.624 Normalized flux density for
EQW[PAH6.2um]=2.624um (1)
3097-3112 F16.14 --- e_F2.624 Error on F2.624
3114-3130 F17.15 --- F4.853 Normalized flux density for
EQW[PAH6.2um]=4.853um (1)
3132-3147 F16.14 --- e_F4.853 Error on F4.853
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Note (1): We split our sample into 100 evenly populated bins of
EQW[PAH6.2µm]. We normalize each pre-stacked individual spectrum
by its IRS fν[24µm].
For MIR AGN-dominated galaxies we have EQW[PAH6.2µm]<0.27µm,
and EQW[PAH6.2µm]>0.54µm when star formation dominates.
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Global Notes:
Note (G1): The errors are given for ≥2σ detections
Note (G2): For <2σ detections, we only report the upper limit of the
luminosity
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History:
From electronic version of the journal
(End) Ana Fiallos [CDS] 09-Nov-2022