2015MNRAS.454.1332S

Query : 2015MNRAS.454.1332S

2015MNRAS.454.1332S - Mon. Not. R. Astron. Soc., 454, 1332-1357 (2015/December-1)

Observed trend in the star formation history and the dark matter fraction of galaxies at redshift z ∼ 0.8.

SHETTY S. and CAPPELLARI M.

Abstract (from CDS):

We study the star formation history for a sample of 154 galaxies with stellar mass 10^10\lesssim M_* \lesssim 10^12  M_☉ in the redshift range 0.7 < z < 0.9. We do this using stellar population models combined with full-spectrum fitting of good quality spectra and high-resolution photometry. For a subset of 68 galaxies (M_*\gtrsim 10^11 M_☉) we additionally construct dynamical models. These use an axisymmetric solution to the Jeans equations, which allows for velocity anisotropy, and adopts results from abundance matching techniques to account for the dark matter content. We find that (i) the trends in star formation history observed in the local Universe are already in place by z ∼ 1: the most massive galaxies are already passive, while lower mass ones have a more extended star formation histories, and the lowest mass galaxies are actively forming stars; (ii) we place an upper limit of a factor 1.5 to the size growth of the massive galaxy population; (iii) we present strong evidence for low dark matter fractions within 1Re (median of 9 per cent and 90th percentile of 21 per cent) for galaxies with M_* \gtrsim 10^11  M_☉ at these redshifts; and (iv) we confirm that these galaxies have, on average, a Salpeter normalization of the stellar initial mass function.

Abstract Copyright: © 2015 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2015)

Journal keyword(s): galaxies: evolution - galaxies: formation - galaxies: haloes - galaxies: high redshift - galaxies: star formation - galaxies: stellar content

Simbad objects: 155

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Number of rows : 155
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 EGSIRAC J141643.07+522806.4 G 14 16 43.09440 +52 28 06.2580   24.08   22.63 21.53 ~ 3 0
2 EGSIRAC J141647.81+522804.1 G 14 16 47.82108 +52 28 04.0794   23.02   20.960 19.947 ~ 5 0
3 EGSIRAC J141649.76+522952.2 G 14 16 49.77795 +52 29 52.0292   23.67   22.07 21.14 ~ 4 0
4 EGSIRAC J141707.51+522921.7 G 14 17 07.50804 +52 29 21.7132   22.92   21.94 21.04 ~ 3 0
5 DEEP2-GRS 12004516 G 14 17 08.9772 +52 24 40.962   23.88   22.42 21.16 ~ 10 0
6 EGSIRAC J141713.61+523213.9 G 14 17 13.62049 +52 32 13.9464   24.6   21.74 20.352 ~ 5 0
7 DEEP2-GRS 12012905 G 14 17 13.7521 +52 31 44.955   22.09   21.72 21.18 ~ 7 0
8 DEEP2-GRS 12004497 G 14 17 13.7806 +52 25 25.388   23.37   22.59 21.88 ~ 5 0
9 DEEP2-GRS 12012829 G 14 17 14.1649 +52 30 34.854   24.28   21.52 20.328 ~ 8 0
10 EGSIRAC J141716.20+522421.4 G 14 17 16.20318 +52 24 21.4903   24.28 22.47 22.23 20.96 ~ 9 0
11 DEEP2-GRS 12008537 G 14 17 16.3092 +52 27 53.557   23.72   22.72 21.99 ~ 6 0
12 DEEP2-GRS 12008360 G 14 17 16.6800 +52 29 28.878   25.6   23.04 21.67 ~ 7 0
13 DEEP2-GRS 12008441 G 14 17 16.7389 +52 28 39.487   23.56   22.38 21.30 ~ 9 0
14 DEEP2-GRS 12004515 G 14 17 18.1213 +52 24 42.022   23.52   22.59 21.81 ~ 9 0
15 DEEP2-GRS 12008211 G 14 17 19.4157 +52 27 50.558   24.8   22.86 21.67 ~ 5 0
16 DEEP2-GRS 12008202 G 14 17 20.4865 +52 28 39.537   23.30   22.78 22.20 ~ 5 0
17 EGSIRAC J141721.50+522117.0 G 14 17 21.50234 +52 21 17.0223   22.30   21.298 20.518 ~ 5 0
18 EGSIRAC J141722.24+522303.7 G 14 17 22.23934 +52 23 03.7592   23.21   22.09 21.44 ~ 4 0
19 DEEP2-GRS 12008254 G 14 17 24.6708 +52 28 47.059   25.3   22.25 20.89 ~ 8 0
20 EGSIRAC J141727.10+523509.9 G 14 17 27.11491 +52 35 09.8239   22.81   21.23 20.264 ~ 5 0
21 EGSIRAC J141731.68+522351.3 G 14 17 31.66957 +52 23 51.4397   25.2   22.30 20.94 ~ 5 0
22 DEEP2-GRS 12004067 G 14 17 34.2862 +52 25 26.617   22.36   21.44 20.75 ~ 7 0
23 [TCB2007] 12021111 G 14 17 35.18748 +52 38 29.5561   24.9   22.17 20.98 ~ 6 0
24 DEEP2-GRS 12004122 G 14 17 35.2144 +52 25 20.157   23.25   21.97 21.18 ~ 6 0
25 CFRS 14.1311 G 14 17 35.70 +52 26 45.9   24.04 21.53 21.38 19.971 ~ 63 1
26 EGSIRAC J141735.68+523806.1 G 14 17 35.73614 +52 38 05.5999   24.03   22.36 21.32 ~ 4 0
27 DEEP2-GRS 12003915 G 14 17 35.7750 +52 25 33.986   23.22   22.33 21.70 ~ 7 0
28 [TCB2007] 12021129 G 14 17 36.34200 +52 37 49.1624   24.5   21.63 20.387 ~ 7 0
29 CFRS 14.1277 G 14 17 37.21 +52 26 50.3   23.75   22.17 20.95 ~ 21 0
30 DEEP2-GRS 12008187 G 14 17 39.8442 +52 28 21.787   22.86   21.66 20.82 ~ 9 0
31 CFRS 14.1189 G 14 17 40.43 +52 29 49.1   23.44   22.59 21.97 ~ 16 0
32 CFRS 14.1190 rG 14 17 40.48 +52 27 13.8   23.10   21.68 20.84 ~ 24 0
33 EGSIRAC J141741.88+523908.5 G 14 17 41.93315 +52 39 08.0694   23.69   22.68 21.76 ~ 3 0
34 ACS-GC 12007926 Sy2 14 17 45.37 +52 29 51.2   24.00 23.586 22.48 21.32 ~ 31 0
35 DEEP2-GRS 12025308 G 14 17 51.62 +52 41 27.2   24.2   21.38 20.058 ~ 4 0
36 EGSIRAC J141758.77+524225.8 G 14 17 58.82539 +52 42 25.6622   25.4   22.57 21.48 ~ 4 0
37 DEEP2-GRS 12025032 G 14 17 59.92541 +52 41 45.2166   23.18   22.00 21.17 ~ 5 0
38 EGSIRAC J141800.26+524228.6 G 14 18 00.30723 +52 42 28.3098   25.7   22.82 21.50 ~ 6 0
39 EGSIRAC J141804.72+523903.3 G 14 18 04.72168 +52 39 03.3433   23.18   21.77 20.90 ~ 4 0
40 EGSIRAC J141808.98+523043.5 G 14 18 08.87 +52 30 42.8   23.30   21.41 20.382 ~ 9 0
41 EGSIRAC J141810.17+524053.6 G 14 18 10.21622 +52 40 53.5480   22.90   22.05 21.44 ~ 3 0
42 [TCB2007] 12011900 G 14 18 10.77 +52 30 57.2   25.2   22.38 21.25 ~ 8 0
43 EGSIRAC J141814.66+523850.2 G 14 18 14.66834 +52 38 50.2095   22.60   21.36 20.716 ~ 4 0
44 EGSIRAC J141815.73+523250.8 G 14 18 15.72459 +52 32 50.9166   22.00   21.12 20.292 ~ 3 0
45 [BPG2011] irac153540 G 14 18 16.75739 +52 36 37.2626   25.6   23.08 21.89 ~ 5 0
46 EGSIRAC J141817.01+524026.7 G 14 18 17.01849 +52 40 26.6183   23.32   22.23 21.45 ~ 3 0
47 EGSIRAC J141817.43+523833.3 G 14 18 17.44374 +52 38 33.2853   22.40   21.66 21.14 ~ 3 0
48 EGSIRAC J141819.09+524027.7 G 14 18 19.09483 +52 40 27.6780   25.1   22.47 21.02 ~ 5 0
49 EGSIRAC J141819.09+524359.8 G 14 18 19.10023 +52 43 59.6573   24.50   22.16 20.922 ~ 3 0
50 EGSIRAC J141820.99+524620.2 G 14 18 21.04078 +52 46 20.0184   25.2   21.97 20.628 ~ 6 0
51 EGSIRAC J141822.46+524247.0 G 14 18 22.45916 +52 42 47.0801   23.94   22.62 21.87 ~ 3 0
52 CANDELS EGS F160W J141825.4+524421.4 G 14 18 25.45679 +52 44 21.3017   24.8   21.98 20.660 ~ 9 0
53 EGSIRAC J141825.84+523606.8 G 14 18 25.84364 +52 36 06.8931   24.7   22.34 21.11 ~ 5 0
54 EGSIRAC J141828.93+523724.4 G 14 18 28.92876 +52 37 24.3861   22.75   21.99 21.49 ~ 3 0
55 EGSIRAC J141829.25+523317.8 G 14 18 29.22613 +52 33 17.9738   23.38   22.08 21.32 ~ 3 0
56 EGSIRAC J141832.45+524019.0 G 14 18 32.49934 +52 40 19.1057   25.5   22.40 21.13 ~ 5 0
57 EGSIRAC J141834.98+523836.6 G 14 18 34.98844 +52 38 36.6701   25.3   22.20 20.99 ~ 5 0
58 EGSIRAC J141835.15+523942.5 G 14 18 35.15230 +52 39 42.5716   23.28   22.19 21.45 ~ 5 0
59 EGSIRAC J141835.24+523425.4 G 14 18 35.22750 +52 34 25.5025   23.61   22.60 21.75 ~ 3 0
60 EGSIRAC J141836.37+523545.4 G 14 18 36.35291 +52 35 45.5717   25.8   23.09 21.87 ~ 4 0
61 EGSIRAC J141836.45+524020.5 G 14 18 36.45358 +52 40 20.5480   23.73   22.21 21.41 ~ 4 0
62 EGSIRAC J141837.66+523710.6 G 14 18 37.66224 +52 37 10.6650   24.64   21.77 20.603 ~ 5 0
63 CANDELS EGS F160W J141850.8+524608.8 G 14 18 50.84433 +52 46 08.8681   25.6   22.54 21.23 ~ 8 0
64 EGSIRAC J141853.82+523841.0 G 14 18 53.80540 +52 38 41.2602   25.7   22.73 21.29 ~ 6 0
65 EGSIRAC J141857.15+523823.9 G 14 18 57.12691 +52 38 24.4644   25.3   22.87 21.58 ~ 6 0
66 CANDELS EGS F160W J141858.7+524246.3 G 14 18 58.66176 +52 42 46.1579   25.9   22.73 21.47 ~ 11 0
67 EGSIRAC J141858.70+525044.4 G 14 18 58.70709 +52 50 44.4707   26.1   22.77 21.477 ~ 6 0
68 NAME Extended Groth Strip reg 14 19 +52.8           ~ 1023 0
69 SDSS J141901.47+524509.5 QSO 14 19 01.47744 +52 45 09.4097   23.49   21.93 21.056 ~ 14 0
70 EGSIRAC J141906.79+525300.3 G 14 19 06.80227 +52 53 00.2944   22.94   21.862 21.052 ~ 3 0
71 [BPG2011] irac137900 G 14 19 07.88105 +52 42 36.6193   23.41   22.52 21.66 ~ 7 0
72 EGSIRAC J141908.57+524057.6 G 14 19 08.54475 +52 40 57.8297   26.1   22.84 21.40 ~ 5 0
73 DEEP2-GRS 12024136 AGN 14 19 09.62308 +52 41 01.2409   22.35   21.26 20.451 ~ 8 0
74 ACS-GC 12028330 AGN 14 19 10.70297 +52 47 02.6891   24.07   22.26 20.95 ~ 14 0
75 CANDELS EGS F160W J141913.7+525159.7 G 14 19 13.66117 +52 51 59.5822   25.4   22.90 21.47 ~ 10 0
76 CANDELS EGS F160W J141914.0+525214.5 G 14 19 14.02298 +52 52 14.4016   25.7   23.23 21.76 ~ 10 0
77 CANDELS EGS F160W J141914.1+525234.5 G 14 19 14.15135 +52 52 34.4178   24.7   21.623 20.425 ~ 7 0
78 CANDELS EGS F160W J141914.4+525106.1 AGN 14 19 14.39376 +52 51 06.0058   21.734   21.153 20.741 ~ 9 0
79 EGSIRAC J141915.03+524127.5 G 14 19 15.00011 +52 41 27.8125   26.3   22.77 21.28 ~ 5 0
80 CANDELS EGS F160W J141915.7+525054.9 G 14 19 15.68378 +52 50 54.6859   24.5   22.58 21.356 ~ 9 0
81 EGSIRAC J141916.21+525546.1 G 14 19 16.24921 +52 55 45.8047   25.1   22.23 20.833 ~ 5 0
82 AEGIS20 J141922.06+525519.0 rG 14 19 22.05003 +52 55 19.0051   23.93   21.968 20.860 ~ 11 0
83 [TCB2007] 13019286 G 14 19 23.92259 +52 54 38.9404   26.6   22.37 21.22 ~ 9 0
84 DEEP2-GRS 12027757 AGN 14 19 27.51 +52 46 57.8   23.85   22.83 21.91 ~ 5 0
85 CANDELS EGS F160W J141928.3+524755.5 G 14 19 28.27631 +52 47 55.1667   23.77   21.75 20.361 ~ 9 0
86 DEEP2-GRS 13027442 G 14 19 29.66822 +52 57 21.7326   24.5   21.80 20.484 ~ 9 0
87 CANDELS EGS F160W J141936.1+525422.6 G 14 19 36.12877 +52 54 22.4110   25.0   22.72 21.47 ~ 8 0
88 SDSS J141939.31+525548.7 AGN 14 19 39.31931 +52 55 48.7874   22.12   21.660 21.153 ~ 8 1
89 CANDELS EGS F160W J141939.5+525233.5 G 14 19 39.45354 +52 52 33.4156   22.16   21.009 20.240 ~ 14 0
90 ACS-GC 13019240 rG 14 19 39.84790 +52 56 14.5823   24.9   22.72 21.436 ~ 16 0
91 CANDELS EGS F160W J141941.0+525500.9 G 14 19 41.02740 +52 55 00.7641   24.8   22.095 20.981 ~ 10 0
92 CANDELS EGS F160W J141941.7+525541.2 G 14 19 41.70714 +52 55 41.0729   23.29   21.932 20.962 ~ 10 0
93 CANDELS EGS F160W J141943.6+525642.5 G 14 19 43.55378 +52 56 42.4946   23.53   22.60 21.77 ~ 9 0
94 CANDELS EGS F160W J141944.0+525129.3 AGN 14 19 44.04 +52 51 29.7   23.97   22.51 21.43 ~ 9 0
95 CANDELS EGS F160W J141945.3+525715.4 G 14 19 45.28524 +52 57 15.4284   22.63   21.529 20.824 ~ 8 0
96 CANDELS EGS F160W J141945.4+525551.0 G 14 19 45.43175 +52 55 50.8836   22.71   21.856 21.162 ~ 9 0
97 CANDELS EGS F160W J141946.4+525437.1 G 14 19 46.35669 +52 54 36.9689   23.36   22.106 21.32 ~ 10 0
98 [TCB2007] 13035326 G 14 19 48.36074 +53 00 53.1673   25.4   22.34 21.055 ~ 7 0
99 ACS-GC 13035323 AGN 14 19 51.53558 +53 01 04.4890   24.01   22.35 21.37 ~ 8 0
100 EGSIRAC J141951.79+530036.9 G 14 19 51.80166 +53 00 36.9546   24.8   22.159 20.948 ~ 6 0
101 EGSIRAC J141951.80+530240.2 G 14 19 51.82478 +53 02 39.9732   25.0   22.37 21.027 ~ 5 0
102 [BPG2011] irac111909 G 14 19 52.37928 +53 00 55.3685   25.7   23.12 21.94 ~ 6 0
103 CANDELS EGS F160W J141956.4+525724.5 G 14 19 56.38072 +52 57 24.3748   22.55   21.83 21.27 ~ 7 0
104 EGSIRAC J142002.02+530407.3 G 14 20 02.05942 +53 04 07.2162   22.84   21.613 20.748 ~ 3 0
105 [BPG2011] irac117027 G 14 20 07.31087 +52 52 16.3489   25.4   23.29 22.13 ~ 7 0
106 EGSIRAC J142008.43+530255.7 G 14 20 08.43845 +53 02 55.6988   24.12   22.89 22.05 ~ 4 0
107 CANDELS EGS F160W J142009.2+525334.7 G 14 20 09.17409 +52 53 34.7558   22.75   21.691 20.905 ~ 9 0
108 CANDELS EGS F160W J142012.3+525654.4 AGN 14 20 12.25342 +52 56 54.5508   23.25   21.51 20.380 ~ 11 0
109 CANDELS EGS F160W J142012.7+525736.3 G 14 20 12.64914 +52 57 36.3965   24.08   22.71 21.79 ~ 9 0
110 CANDELS EGS F160W J142012.8+525849.9 G 14 20 12.78258 +52 58 49.8251   23.47   21.559 20.641 ~ 6 0
111 CANDELS EGS F160W J142013.9+525723.2 AGN 14 20 13.89444 +52 57 23.2863   22.33   21.584 21.027 ~ 8 0
112 ACS-GC 13034447 AGN 14 20 14.47137 +53 01 25.9829   24.16   21.986 20.906 ~ 14 0
113 CANDELS EGS F160W J142015.3+530128.1 G 14 20 15.34771 +53 01 28.0782   22.68   21.728 21.063 ~ 7 0
114 CANDELS EGS F160W J142015.8+525655.3 AGN 14 20 15.77016 +52 56 55.3255   23.69   22.25 21.273 ~ 9 0
115 EGSIRAC J142020.37+530534.0 G 14 20 20.38100 +53 05 34.0647   25.6   22.89 21.557 ~ 4 0
116 EGSIRAC J142026.28+525430.9 G 14 20 26.24119 +52 54 31.3403   23.34   22.04 21.164 ~ 3 0
117 EGSIRAC J142028.66+525846.5 AGN 14 20 28.75 +52 58 46.9   25.2   22.62 21.324 ~ 5 0
118 CANDELS EGS F160W J142031.3+525807.1 G 14 20 31.27484 +52 58 07.2107   22.80   21.980 21.32 ~ 8 0
119 CANDELS EGS F160W J142032.4+530437.5 G 14 20 32.44599 +53 04 37.4770   25.1   22.50 21.236 ~ 7 0
120 CANDELS EGS F160W J142034.4+530055.1 G 14 20 34.36342 +53 00 55.2438   25.9   22.93 21.699 ~ 8 0
121 CANDELS EGS F160W J142035.7+530141.7 G 14 20 35.64301 +53 01 41.8026   26.4   23.19 21.96 ~ 7 0
122 EGSIRAC J142036.56+531035.7 AGN 14 20 36.58269 +53 10 35.5671   22.59   21.745 21.220 ~ 3 0
123 EGSIRAC J142036.68+530817.1 G 14 20 36.68520 +53 08 17.1952   24.24   21.944 20.812 ~ 4 0
124 CANDELS EGS F160W J142037.2+530345.3 AGN 14 20 37.16038 +53 03 45.5761   24.6   22.90 21.97 ~ 8 0
125 EGSIRAC J142038.01+531005.0 G 14 20 38.01841 +53 10 04.9851   24.5   21.962 20.751 ~ 4 0
126 [TCB2007] 13050602 G 14 20 39.95395 +53 08 17.3404   24.9   21.886 20.601 ~ 6 0
127 EGSIRAC J142042.01+530944.4 G 14 20 42.01336 +53 09 44.4015   26.2   23.11 21.60 ~ 5 0
128 CANDELS EGS F160W J142042.5+530149.7 G 14 20 42.47485 +53 01 49.8685   23.70   22.033 21.075 ~ 7 0
129 [BPG2011] irac105562 1 G 14 20 42.76740 +52 57 21.6011   24.11   22.49 21.459 ~ 5 0
130 [BPG2011] irac104773 G 14 20 43.11263 +52 58 08.5405   22.57   21.885 21.401 ~ 3 0
131 EGSIRAC J142043.66+531011.0 AGN 14 20 43.72 +53 10 11.2   23.61   22.12 20.773 ~ 7 0
132 EGSIRAC J142044.22+531124.9 G 14 20 44.23059 +53 11 24.8534   22.62   21.797 20.990 ~ 4 0
133 CANDELS EGS F160W J142044.8+525918.4 G 14 20 44.80290 +52 59 18.4669   22.15   21.295 20.634 ~ 5 0
134 DEEP2-GRS 13042352 G 14 20 45.60292 +53 05 30.8854   25.0   22.008 20.728 ~ 7 0
135 CANDELS EGS F160W J142046.0+525944.4 G 14 20 46.03572 +52 59 44.4775   26.4   23.43 22.35 ~ 8 0
136 EGSIRAC J142046.81+525748.9 G 14 20 46.76112 +52 57 49.5850   23.51   22.56 21.66 ~ 3 0
137 EGSIRAC J142047.28+525817.8 AGN 14 20 47.34 +52 58 18.5   23.95   21.569 20.367 ~ 7 0
138 ACS-GC 13025494 AGN 14 20 48.61339 +52 58 42.5221   25.0   22.31 21.165 ~ 10 0
139 CANDELS EGS F160W J142048.8+530225.5 G 14 20 48.75914 +53 02 25.5678   22.33   21.592 21.106 ~ 7 0
140 ACS-GC 13025485 AGN 14 20 50.81448 +52 59 10.7815   24.04   22.52 21.61 ~ 5 0
141 CANDELS EGS F160W J142052.2+530303.7 G 14 20 52.17746 +53 03 03.7333   25.3   22.91 21.71 ~ 7 0
142 DEEP2-GRS 13033927 AGN 14 20 52.47 +53 02 17.6   25.2   22.78 21.595 ~ 4 0
143 CANDELS EGS F160W J142054.9+530230.5 G 14 20 54.90082 +53 02 30.5353   23.79   22.52 21.75 ~ 8 0
144 EGSIRAC J142055.57+531210.9 G 14 20 55.57641 +53 12 10.8871   27.1   23.21 21.89 ~ 5 0
145 CANDELS EGS F160W J142056.5+530235.6 G 14 20 56.50082 +53 02 35.5820   22.82   21.338 20.393 ~ 11 0
146 DEEP2-GRS 13058235 Sy2 14 20 57.22347 +53 11 03.9065   24.9   22.64 21.490 ~ 10 0
147 EGSIRAC J142059.26+531043.9 G 14 20 59.26812 +53 10 43.9870   25.7   22.74 21.511 ~ 5 0
148 EGSIRAC J142101.24+531344.0 G 14 21 01.30121 +53 13 43.5666   24.6   22.36 21.185 ~ 4 0
149 EGSIRAC J142106.46+530723.0 G 14 21 06.46443 +53 07 23.0719   26.0   22.88 21.51 ~ 5 0
150 EGSIRAC J142113.95+531220.1 G 14 21 13.94338 +53 12 20.2238   24.27   22.83 21.641 ~ 4 0
151 AEGIS20 J142114.17+531342.8 rG 14 21 14.20529 +53 13 42.7849   23.53   22.79 21.586 ~ 4 0
152 EGSIRAC J142119.06+530530.6 G 14 21 19.03485 +53 05 30.6881   25.2   22.98 21.735 ~ 5 0
153 EGSIRAC J142125.43+530555.2 G 14 21 25.36413 +53 05 54.9170   23.26   21.977 21.267 ~ 4 0
154 EGSIRAC J142129.16+530558.9 AGN 14 21 29.13605 +53 05 59.0815   24.9   22.62 21.461 ~ 7 0
155 EGSIRAC J142130.91+530529.7 G 14 21 30.89296 +53 05 30.0106   24.7   22.42 21.304 ~ 4 0

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