2015MNRAS.446.2823R

Query : 2015MNRAS.446.2823R

2015MNRAS.446.2823R - Mon. Not. R. Astron. Soc., 446, 2823-2836 (2015/January-3)

Differences between CO- and calcium triplet-derived velocity dispersions in spiral galaxies: evidence for central star formation?

RIFFEL R.A., HO L.C., MASON R., RODRIGUEZ-ARDILA A., MARTINS L., RIFFEL R., DIAZ R., COLINA L., ALONSO-HERRERO A., FLOHIC H., GONZALEZ MARTIN O., LIRA P., McDERMID R., RAMOS ALMEIDA C., SCHIAVON R., THANJAVUR K., RUSCHEL-DUTRA D., WINGE C. and PERLMAN E.

Abstract (from CDS):

We examine the stellar velocity dispersions (σ) of a sample of 48 galaxies, 35 of which are spirals, from the Palomar nearby galaxy survey. It is known that for ultra-luminous infrared galaxies (ULIRGs) and merger remnants, the σ derived from the near-infrared CO band heads is smaller than that measured from optical lines, while no discrepancy between these measurements is found for early-type galaxies. No such studies are available for spiral galaxies - the subject of this paper. We used cross-dispersed spectroscopic data obtained with the Gemini Near-Infrared Spectrograph, with spectral coverage from 0.85 to 2.5 µm, to obtain σ measurements from the 2.29 µm CO band heads (σCO) and the 0.85 µm calcium triplet (σCaT). For the spiral galaxies in the sample, we found that σCO is smaller than σCaT, with a mean fractional difference of 14.3 per cent. The best fit to the data is given by σopt = (46.0±18.1) + (0.85±0.12)σCO. This `σ-discrepancy' may be related to the presence of warm dust, as suggested by a slight correlation between the discrepancy and the infrared luminosity. This is consistent with studies that have found no σ-discrepancy in dust-poor early-type galaxies, and a much larger discrepancy in dusty merger remnants and ULIRGs. That σCO is lower than σopt may also indicate the presence of a dynamically cold stellar population component. This would agree with the spatial correspondence between low-σCO and young/intermediate-age stellar populations that has been observed in spatially resolved spectroscopy of a handful of galaxies.

Abstract Copyright: © 2014 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2014)

Journal keyword(s): galaxies: active - galaxies: kinematics and dynamics - galaxies: star formation - infrared: galaxies

VizieR on-line data: <Available at CDS (J/MNRAS/446/2823): table1.dat tableb1.dat>

CDS comments: Misprints in Table 2: IRAS 12540-5708 = IRAS 12540+5708; IRAS 23365-3604 = IRAS 23365+3604.

Simbad objects: 163

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Number of rows : 163
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 HD 2490 PM* 00 28 26.5213084992 -39 54 53.997198336   6.956 5.415     M0III 49 0
2 M 110 GiG 00 40 22.0572349992 +41 41 07.507220136   8.92 8.07     ~ 1370 1
3 M 32 GiG 00 42 41.82480 +40 51 54.6120 9.51 9.03 8.08     ~ 2236 2
4 NGC 266 LIN 00 49 47.8149787992 +32 16 39.786194928 12.98 12.54 11.63     ~ 202 1
5 NGC 315 LIN 00 57 48.88334410 +30 21 08.8119345 12.80 12.20 11.16 11.26   ~ 869 2
6 HD 6461 HB* 01 05 25.4452259760 -12 54 12.091479948   8.43 7.67     G3V 68 0
7 NGC 404 LIN 01 09 27.02 +35 43 05.3   12.56 11.73     ~ 511 0
8 NGC 410 GiG 01 10 58.9016492712 +33 09 07.053878052 13.08 12.52 11.48     ~ 163 2
9 NGC 474 GiP 01 20 06.6870520512 +03 24 55.861973100 12.75 12.37 11.51 11.42 10.56 ~ 371 1
10 * mu. Psc PM* 01 30 11.1150260499 +06 08 37.758162354 7.75 6.22 4.84 3.78 3.04 K3III 192 0
11 BD+59 274 V* 01 33 29.2148328144 +60 38 47.710826664 12.90 10.64 8.54     M0.5Ib-II 51 0
12 NGC 660 Sy2 01 43 02.350 +13 38 44.45   12.02 11.16     ~ 588 2
13 LEDA 7897 G 02 04 27.3254183088 -20 49 41.237644872   17.45       ~ 44 0
14 NGC 821 AG? 02 08 21.1358498040 +10 59 41.832436704   12.210 11.310 10.739 9.744 ~ 592 0
15 NGC 1023 AG? 02 40 24.0133575864 +39 03 47.663392896 10.91 10.35 9.35 7.83   ~ 689 2
16 NGC 1052 Bla 02 41 04.79849989 -08 15 20.7519527 11.84 11.41 10.47 10.71   ~ 1397 2
17 M 77 Sy2 02 42 40.7091669408 -00 00 47.859690204 9.70 9.61 8.87 10.1 9.9 ~ 4897 2
18 V* Z Eri AB* 02 47 55.9221088152 -12 27 38.321064756 9.83 8.46 6.90     M5III 120 0
19 * rho02 Ari LP* 02 55 48.4979998 +18 19 53.902936 8.56 7.44 5.93 3.51 1.34 M6-III: 232 0
20 NGC 1161 Sy2 03 01 14.1715734192 +44 53 50.674920288   13.20 12.08     ~ 84 0
21 NGC 1167 LIN 03 01 42.3322774176 +35 12 20.300948892   13.84 12.77     ~ 382 1
22 NGC 1316 rG 03 22 41.789 -37 12 29.52 9.81 9.15 8.53 7.66   ~ 1491 1
23 NGC 1336 GiG 03 26 32.1845365512 -35 42 48.662672184   13.12   11.95   ~ 150 0
24 MCG-06-08-019 GiG 03 27 18.0282957096 -34 31 35.315736492   14.15   12.95   ~ 98 0
25 NGC 1339 EmG 03 28 06.5493649512 -32 17 09.840527844   12.63   11.18   ~ 171 0
26 NGC 1340 GiG 03 28 19.6251763296 -31 04 05.435465520   11.20 10.32 9.70   ~ 222 1
27 NGC 1351 GiG 03 30 34.9598617824 -34 51 14.242996620   12.30   10.85   ~ 190 0
28 NGC 1358 Sy2 03 33 39.6807616872 -05 05 22.213915692   14.10 13.05 11.76   ~ 220 1
29 NGC 1373 GiP 03 34 59.1993515280 -35 10 15.879086760 14.44 14.03 13.26     ~ 136 1
30 NGC 1374 EmG 03 35 16.5885737352 -35 13 34.563417168 12.46 11.97 11.08 10.59   ~ 322 1
31 NGC 1375 GiG 03 35 16.8025873104 -35 15 56.371399740 13.50 13.02 12.40 11.74   ~ 175 1
32 IC 335 GiG 03 35 31.0692175536 -34 26 49.368859656   12.90   11.71   ~ 147 0
33 NGC 1379 GiP 03 36 03.9668625792 -35 26 28.547476800 12.17 12.04 10.91 10.60   ~ 277 1
34 NGC 1380 Sy2 03 36 27.590 -34 58 34.68 11.32 10.94 9.93 9.37   ~ 460 1
35 NGC 1381 GiP 03 36 31.6592184144 -35 17 42.739221912 12.90 12.47 11.50 11.02   ~ 269 1
36 NGC 1380A GiG 03 36 47.5007323848 -34 44 22.739259552 13.63 13.36 12.41 12.00   ~ 156 1
37 NGC 1399 rG 03 38 29.083 -35 27 02.67 11.05 9.74 9.59 8.12   ~ 1636 1
38 ACO S 373 ClG 03 38 29.4 -35 27 08           ~ 2029 0
39 NGC 1404 rG 03 38 51.917 -35 35 39.81 11.53 10.69 10.00 9.03   ~ 787 1
40 NGC 1400 EmG 03 39 30.851 -18 41 17.25 12.48 12.01 10.96 10.45   ~ 309 1
41 NGC 1407 rG 03 40 11.904 -18 34 49.36   10.64 9.67 9.13   ~ 613 2
42 NGC 1419 GiG 03 40 42.1036600944 -37 30 38.778564456   13.56   12.07   ~ 146 0
43 NGC 1427 GiG 03 42 19.4455150392 -35 23 33.169251120   11.89   10.44   ~ 298 0
44 MCG-06-09-026 GiG 03 45 03.5753235792 -35 58 21.372259872   14.08   12.85   ~ 131 0
45 IC 2006 EmG 03 54 28.4628183240 -35 58 01.673622516   12.39   10.94 11.9 ~ 217 0
46 HD 27796 * 04 24 25.4872394616 +29 01 11.405806896   9.43 7.72     M5III 21 0
47 NGC 1614 Sy1 04 34 00.027 -08 34 44.57   14.66 13.99     ~ 697 1
48 HD 30354 AB* 04 47 47.9312261952 +22 08 21.898941180   10.17 8.43     M5III 19 0
49 * omi Col PM* 05 17 29.0887389637 -34 53 42.722762056 6.62 5.83 4.83 4.09 3.54 K1IV 98 0
50 IRAS 05189-2524 Sy2 05 21 01.3994605776 -25 21 45.321827832   15.47 14.75     ~ 545 0
51 * bet Lep PM* 05 28 14.7228880318 -20 45 33.997988694 4.13 3.66 2.84 2.19 1.75 G5II-IIIa: 254 0
52 NGC 1961 LIN 05 42 04.6327819680 +69 22 42.411028872   11.73 10.99     ~ 362 3
53 NGC 2110 Sy2 05 52 11.3768668776 -07 27 22.507465392   14.77 13.51 11.86   ~ 712 1
54 MCG-06-14-014 Sy2 06 13 47.6258341728 -37 40 36.600431556   14.76   12.95   ~ 28 0
55 NGC 2293 AG? 06 47 42.912 -26 45 15.70   11.70   12.0 11.3 ~ 70 0
56 NGC 2273 Sy1 06 50 08.6691789600 +60 50 44.864645136   14.50 13.54     ~ 566 2
57 NGC 2380 GiG 07 23 54.749 -27 31 44.62   12.52   10.77   ~ 57 0
58 NGC 2418 AG? 07 36 37.4992142280 +17 53 01.870386972   13.7       ~ 66 0
59 V* V394 Pup LP* 07 47 07.3535366400 -41 31 02.999594748   9.10 7.65     K7III 23 0
60 HD 64606 SB* 07 54 34.1880221064 -01 24 44.300470716 8.32 8.165 7.433 7.007 6.569 K0V 265 0
61 NGC 2623 LIN 08 38 24.016 +25 45 16.29 14.10 13.99 13.36     ~ 533 2
62 NGC 2639 Sy2 08 43 38.0682469032 +50 12 19.942091604 12.90 12.56 11.65     ~ 451 2
63 NGC 2681 LIN 08 53 32.7183058512 +51 18 49.159212120 11.40 11.09 10.29     ~ 332 1
64 NGC 2655 Sy2 08 55 37.731 +78 13 23.10   12.03 11.08     ~ 318 2
65 NGC 2768 SyG 09 11 37.504 +60 02 13.95 11.30 10.84 9.87     ~ 526 2
66 NGC 2778 GiP 09 12 24.3741783168 +35 01 39.140496840   13.1       ~ 303 0
67 NGC 2787 LIN 09 19 18.6046606656 +69 12 11.630716128   12.92 11.79     ~ 381 0
68 NGC 2832 LIN 09 19 46.853 +33 44 59.07   13.3 13.17     ~ 274 3
69 NGC 2914 LIN 09 34 02.7855845040 +10 06 31.380212052   13.7       ~ 71 0
70 NGC 2974 Sy2 09 42 33.2918467632 -03 41 57.038311068   12.19   10.77   ~ 463 0
71 M 81 Sy2 09 55 33.1726556496 +69 03 55.062505368   7.89 6.94     ~ 4725 3
72 NGC 3079 Sy2 10 01 57.8789863992 +55 40 47.449758324 11.57 11.54 10.86     ~ 1476 3
73 NGC 3115 GiG 10 05 13.9270507008 -07 43 06.982712292   11   9.37   ~ 1067 2
74 NGC 3169 SyG 10 14 15.0379414272 +03 27 57.941639856   13.46 12.41     ~ 381 1
75 NGC 3147 Sy2 10 16 53.6388580752 +73 24 02.641798224   11.43 10.61     ~ 533 2
76 NGC 3189 GiP 10 18 05.643 +21 49 54.98 12.60 12.12 11.15 11.14   ~ 422 2
77 NGC 3245 LIN 10 27 18.3864983136 +28 30 26.621599932   11.6       ~ 372 0
78 NGC 3256 Sy2 10 27 51.284 -43 54 13.55   11.83 11.33 10.62 11.9 ~ 920 2
79 NGC 3377 GiP 10 47 42.400 +13 59 08.30 11.55 11.24 10.38     ~ 798 1
80 M 105 LIN 10 47 49.600 +12 34 53.87   10.56 9.76 9.12 8.18 ~ 1504 0
81 NGC 3384 GiG 10 48 16.8855574392 +12 37 45.371165844   10.0       ~ 617 1
82 * 56 Leo LP? 10 56 01.4682688998 +06 11 07.341317877 8.45 7.24 5.78 3.53 1.44 M5.5III: 179 0
83 NGC 3607 Sy2 11 16 54.65687 +18 03 06.5120   13.84 12.76     ~ 490 1
84 NGC 3608 LIN 11 16 58.967 +18 08 54.71   11.7       ~ 527 0
85 NGC 3718 Sy2 11 32 34.8571790688 +53 04 04.520222040   11.35 10.61     ~ 408 1
86 HD 102328 * 11 46 55.6222860288 +55 37 41.480416020   6.528 5.254     K2.5IIIbCN1 169 0
87 BD-01 2582 RG* 11 53 37.3231720128 -02 00 36.728298108   10.29 9.60     CEMP-s 125 0
88 NGC 3998 Sy2 11 57 56.1334044408 +55 27 12.922443432   11.64 12.10 10.09   ~ 682 2
89 NGC 4150 GiG 12 10 33.655 +30 24 05.35 12.72 12.44 11.64     ~ 331 2
90 NGC 4194 rG 12 14 09.615 +54 31 35.93   13.79 13.30     ~ 467 2
91 NGC 4203 LIN 12 15 05.0549203560 +33 11 50.383965120   12.98 11.99     ~ 514 2
92 NGC 4235 Sy1 12 17 09.8818997904 +07 11 29.673389004   14.70 13.60     ~ 441 0
93 M 106 Sy2 12 18 57.620 +47 18 13.39   9.14 8.41 8.11   ~ 2512 4
94 NGC 4261 LIN 12 19 23.2160630 +05 49 29.700024   13.92 12.87     ~ 1290 0
95 NGC 4291 GiG 12 20 17.699 +75 22 15.47   17.0       ~ 321 1
96 NGC 4346 GiG 12 23 27.9622537560 +46 59 37.642074396   12.3       ~ 122 0
97 NGC 4342 GiP 12 23 39.0032044488 +07 03 14.359499100   13.0       ~ 337 0
98 NGC 4365 GiG 12 24 28.228 +07 19 03.07   11.5       ~ 871 0
99 M 84 Sy2 12 25 03.74333 +12 53 13.1393 12.67 12.09 10.49     ~ 1841 2
100 NGC 4388 Sy2 12 25 46.820 +12 39 43.45 11.91 11.76 11.02     ~ 1433 2
101 NGC 4450 LIN 12 28 29.5910654016 +17 05 05.976112020   10.90 10.08     ~ 587 2
102 NGC 4459 H2G 12 29 00.0329905416 +13 58 42.826603332   11.6       ~ 567 0
103 M 49 Sy2 12 29 46.8 +08 00 01   13.21 12.17     ~ 2174 2
104 NGC 4473 GiG 12 29 48.878 +13 25 45.55 11.60 11.16 10.20     ~ 671 1
105 M 87 AGN 12 30 49.42338414 +12 23 28.0436859 10.16 9.59 8.63   7.49 ~ 7815 3
106 M 91 LIN 12 35 26.4446761320 +14 29 46.760333748   14.63 13.57     ~ 639 0
107 NGC 4565 Sy2 12 36 20.804 +25 59 14.61   13.61 12.43     ~ 991 0
108 NGC 4564 GiG 12 36 26.9869512504 +11 26 21.204472848 12.51 12.05 11.12     ~ 615 1
109 M 90 Sy2 12 36 49.8009839880 +13 09 46.523813040 10.56 10.26 9.54     ~ 953 1
110 M 58 Sy2 12 37 43.59747 +11 49 05.1240 10.80 10.48 9.66     ~ 1140 2
111 NGC 4596 GiP 12 39 55.9544722920 +10 10 34.185047628   12.4       ~ 387 0
112 M 104 LIN 12 39 59.43185902 -11 37 22.9961800 9.51 9.55 8.00 8.05   ~ 1465 2
113 M 60 GiC 12 43 39.9708251934 +11 33 09.688174067   10.3       ~ 1395 1
114 NGC 4697 GiG 12 48 35.8981498824 -05 48 02.482374564   10.97   9.83   ~ 895 0
115 NGC 4750 LIN 12 50 07.3113940944 +72 52 28.653179520   11.8       ~ 153 0
116 NGC 4725 Sy2 12 50 26.5716367992 +25 30 02.733090588   13.45 12.44     ~ 727 2
117 M 94 SyG 12 50 53.0737971432 +41 07 12.900884628 9.15 8.96 8.24 7.78   ~ 1476 2
118 NGC 4742 GiG 12 51 48.0416784480 -10 27 17.196625800   12   11.55   ~ 235 1
119 Z 294-4 Sy1 12 56 14.2341182928 +56 52 25.238373852   14.68 13.84     ~ 2096 3
120 HD 113538 PM* 13 04 57.4765361506 -52 26 34.525896996 11.733 10.433 9.057 8.202 7.418 K9Vk: 95 1
121 NGC 5005 LIN 13 10 56.312 +37 03 32.19   14.67 13.67     ~ 567 2
122 NGC 5018 GiP 13 13 01.0452720960 -19 31 05.649751992   11.71   10.31   ~ 335 1
123 NGC 5033 Sy2 13 13 27.535 +36 35 37.14   11.01 12.03 9.73   ~ 909 1
124 V* SW Vir AB* 13 14 04.3830437280 -02 48 25.130666916 9.24 8.52 6.85     M7III: 274 0
125 * 20 CVn dS* 13 17 32.5411518092 +40 34 21.384382657   5.010 4.698     A9IImF2 248 0
126 IC 883 SBG 13 20 35.37960 +34 08 21.8400   14.8       ~ 421 1
127 NAME Centaurus A BLL 13 25 27.61521044 -43 01 08.8050291   8.18 6.84 6.66   ~ 4774 3
128 M 51 Sy2 13 29 52.698 +47 11 42.93   9.26 8.36 8.40   ~ 4565 4
129 NGC 5195 GiG 13 29 59.590 +47 15 58.06 10.76 10.45 9.55 9.31   ~ 816 3
130 NGC 5390 LIN 13 55 39.9385716624 +40 27 42.380606592   12.81 11.93 10.04   ~ 373 1
131 MCG-04-34-014 EmG 14 22 06.6122328120 -26 51 26.716546872   14.24   12.70   ~ 25 0
132 HD 130705 PM* 14 49 26.1552733584 +10 02 38.965893360   7.897 6.627     K3IIIb:Fe2 68 0
133 NGC 5812 EmG 15 00 55.708 -07 27 26.33   12   11.19   ~ 164 0
134 NGC 5845 GiG 15 06 00.7823239488 +01 38 01.704838596   13.8 11.20 12.06 9.94 ~ 403 0
135 M 102 SyG 15 06 29.561 +55 45 47.91 11.12 10.74 9.89     ~ 578 2
136 NGC 5850 LIN 15 07 07.6828131840 +01 32 39.513281352   11.5   10.79 11.1 ~ 330 1
137 * tet UMi V* 15 31 24.9136103328 +77 20 57.695859924   6.535 4.982     K5-IIICN0.5 126 0
138 NGC 6251 Bla 16 32 31.96989253 +82 32 16.3999044 15.24 14.66 12.89 7.62   ~ 772 1
139 * h Her PM* 16 32 36.2919789280 +11 29 16.948144457 8.16 6.34 4.85 3.65 2.79 K4.5III 164 0
140 * 12 Oph BY* 16 36 21.4496896968 -02 19 28.513024233 7.00 6.55 5.77 5.13 4.74 K1V 525 0
141 LEDA 60189 LIN 17 23 21.96264 -00 17 00.8088   15.1       ~ 454 0
142 NGC 6500 LIN 17 55 59.78218885 +18 20 17.6673590   13.43 12.54     ~ 232 1
143 NGC 6548 GiP 18 05 59.2439762424 +18 35 14.256371040   13.1       ~ 82 0
144 V* V3879 Sgr LP* 18 42 55.0997191368 -19 17 03.155956692 9.66 8.10 6.35     M4III 93 0
145 NGC 6703 AG? 18 47 18.8166660360 +45 33 02.274865812   12.29 11.34     ~ 225 0
146 * 13 Lyr LP* 18 55 20.1023376286 +43 56 45.922489780 7.00 5.59 4.00 1.95 0.04 M4.5III 324 1
147 V* NR Vul s*r 19 50 11.9276355408 +24 55 24.180686508   12.41 9.36 6.60 4.49 M1Ia: 84 0
148 MCG-06-45-009 AG? 20 41 13.872 -38 11 36.38   13.40 12.75 12.35   ~ 51 0
149 * bet Ind * 20 54 48.5980921153 -58 27 14.921144930 6.13 4.90 3.65     K1II 77 0
150 ESO 286-19 LIN 20 58 26.8183783008 -42 38 59.411838156   14.79 14.79 14.20   ~ 318 0
151 NGC 7052 rG 21 18 33.0441963648 +26 26 49.174586196 15.52 14.85 13.09     ~ 348 1
152 V* EP Aqr AB* 21 46 31.8494911920 -02 12 45.928582560   7.93 6.78     M7-III: 252 0
153 NGC 7217 LIN 22 07 52.3984675584 +31 21 33.632293572   12.94 11.92     ~ 511 0
154 NGC 7252 AGN 22 20 44.7748209648 -24 40 41.909518200 12.26 12.46 12.06 11.57   ~ 720 1
155 NGC 7331 LIN 22 37 04.0506038088 +34 24 56.800076508 10.65 10.35 9.48     ~ 1284 2
156 NGC 7332 GiP 22 37 24.5373044952 +23 47 53.830708800   12.0       ~ 391 0
157 NGC 7457 AG? 23 00 59.9263288440 +30 08 41.764398792   11.04 11.87     ~ 459 0
158 IC 5298 Sy2 23 16 00.6756811155 +25 33 24.081139422   15.0       ~ 205 0
159 NGC 7619 GiG 23 20 14.524 +08 12 22.63   12.7       ~ 472 0
160 NGC 7626 rG 23 20 42.524 +08 13 01.43   12.8       ~ 438 1
161 BD+19 5116 ** 23 31 52.17898 +19 56 14.1505 12.737 11.749 10.165 8.982 7.446 M3.5V 469 0
162 LEDA 90429 SyG 23 39 01.26960 +36 21 08.5896   16.17       ~ 232 1
163 NGC 7743 Sy2 23 44 21.1607807112 +09 56 02.970989664   14.19 13.28     ~ 334 0

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