2013ApJ...768...74T

Query : 2013ApJ...768...74T

2013ApJ...768...74T - Astrophys. J., 768, 74 (2013/May-1)

PHIBSS: molecular gas content and scaling relations in z ∼ 1-3 massive, main-sequence star-forming galaxies.

TACCONI L.J., NERI R., GENZEL R., COMBES F., BOLATTO A., COOPER M.C., WUYTS S., BOURNAUD F., BURKERT A., COMERFORD J., COX P., DAVIS M., FORSTER SCHREIBER N.M., GARCIA-BURILLO S., GRACIA-CARPIO J., LUTZ D., NAAB T., NEWMAN S., OMONT A., SAINTONGE A., SHAPIRO GRIFFIN K., SHAPLEY A., STERNBERG A. and WEINER B.

Abstract (from CDS):

We present PHIBSS, the IRAM Plateau de Bure high-z blue sequence CO 3-2 survey of the molecular gas properties in massive, main-sequence star-forming galaxies (SFGs) near the cosmic star formation peak. PHIBSS provides 52 CO detections in two redshift slices at z ∼ 1.2 and 2.2, with log(M*(M☉)) ≥ 10.4 and log(SFR(M☉/yr)) ≥ 1.5. Including a correction for the incomplete coverage of the M*-SFR plane, and adopting a "Galactic" value for the CO-H2 conversion factor, we infer average gas fractions of ∼0.33 at z ∼ 1.2 and ∼0.47 at z ∼ 2.2. Gas fractions drop with stellar mass, in agreement with cosmological simulations including strong star formation feedback. Most of the z ∼ 1-3 SFGs are rotationally supported turbulent disks. The sizes of CO and UV/optical emission are comparable. The molecular-gas-star-formation relation for the z = 1-3 SFGs is near-linear, with a ∼0.7 Gyr gas depletion timescale; changes in depletion time are only a secondary effect. Since this timescale is much less than the Hubble time in all SFGs between z ∼ 0 and 2, fresh gas must be supplied with a fairly high duty cycle over several billion years. At given z and M*, gas fractions correlate strongly with the specific star formation rate (sSFR). The variation of sSFR between z ∼ 0 and 3 is mainly controlled by the fraction of baryonic mass that resides in cold gas.

Abstract Copyright: ∼

Journal keyword(s): galaxies: evolution - galaxies: high-redshift - galaxies: ISM - ISM: molecules

VizieR on-line data: <Available at CDS (J/ApJ/768/74): table1.dat table2.dat>

Simbad objects: 82

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Number of rows : 82
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 NGC 253 SyG 00 47 33.134 -25 17 19.68   8.03   6.94 8.1 ~ 3588 2
2 NGC 1614 Sy1 04 34 00.027 -08 34 44.57   14.66 13.99     ~ 697 1
3 NGC 2146 AGN 06 18 37.710 +78 21 25.27 11.67 11.38 10.59     ~ 765 2
4 M 82 AGN 09 55 52.430 +69 40 46.93 9.61 9.30 8.41     ~ 6156 6
5 COSMOS 1323716 G 09 58 59.10 +02 05 04.5   22.58 22.15     ~ 34 0
6 NAME COSMOS Field reg 10 00 28.60 +02 12 21.0           ~ 3639 0
7 NAME BzK 4171 rG 12 36 26.55 +62 08 35.2 26.53 25.7766 25.9   24.3899 ~ 37 0
8 NAME BzK 16000 G 12 36 30.0982 +62 14 28.357 24.73 24.5722 25.14   23.1990 ~ 35 0
9 ACS-GC 50012028 rG 12 36 33.656 +62 10 06.12 23.59 23.5851 24.48 22.15 21.8962 ~ 52 0
10 [TSW99] 198.000 EmG 12 36 46.27 +62 11 42.0 22.87 22.8013 23.94 21.52 21.4006 ~ 51 0
11 GNS 1276 G 12 36 53.6579 +62 17 24.531 24.48 24.4588 24.65 23.90 23.9311 ~ 26 0
12 GNS 1969 EmG 12 37 09.1352 +62 15 08.328 24.58 23.8698 24.10 23.25 22.8112 ~ 19 0
13 NAME BzK 21000 rG 12 37 10.63 +62 22 34.7 23.93 25.0574     23.7554 ~ 55 0
14 ACS-GC 50015762 rG 12 37 12.146 +62 17 54.33 24.95 25.1017 25.11 24.02 23.4143 ~ 26 0
15 NAME BzK 25536 rG 12 37 28.33 +62 18 55.0 24.89 24.8702 25.26   23.8229 ~ 22 0
16 NAME BzK 12591 rG 12 37 41.383 +62 12 51.58 25.2 24.3633   23.7 23.0851 ~ 32 0
17 GOODS J123750.89+621601.1 rG 12 37 50.92 +62 16 00.7 24.40 24.1014 24.28 23.0 21.9772 ~ 23 0
18 NAME BzK 17999 rG 12 37 51.85 +62 15 20.1 25.87 25.9037     25.4331 ~ 28 0
19 GOODS J123759.47+621733.1 G 12 37 59.4715 +62 17 33.248 23.07 22.9063 24.25 22.7 21.7474 ~ 15 0
20 EGSIRAC J141642.08+522519.2 G 14 16 42.08409 +52 25 19.2082   22.87   22.06 21.20 ~ 7 0
21 [TCB2007] 12004280 G 14 17 00.85701 +52 27 01.2970   23.63   22.57 21.78 ~ 9 0
22 EGSIRAC J141701.88+522658.9 G 14 17 01.94273 +52 26 58.2497   25.3   22.64 21.10 ~ 5 0
23 [BPG2011] irac161478 G 14 17 56.81004 +52 32 00.1478   22.73   22.15 21.52 ~ 8 0
24 DEEP-GSS 054-7049 G 14 18 03.47 +52 30 21.7   21.89   21.48 20.86 ~ 22 0
25 EGSIRAC J141804.99+524025.3 G 14 18 04.99813 +52 40 25.1812   22.83   22.55 22.12 ~ 4 0
26 EGSIRAC J141819.27+524221.4 G 14 18 19.27869 +52 42 21.3909   23.30   22.53 21.68 ~ 5 0
27 [TCB2007] 12011767 G 14 18 24.71197 +52 32 55.5155   22.80   22.32 21.70 ~ 11 0
28 CANDELS EGS F160W J141837.4+524418.4 G 14 18 37.40338 +52 44 18.1768   23.13   22.32 21.57 ~ 9 0
29 DEEP2-GRS 13004661 G 14 18 40.83906 +52 48 35.4808   23.45   22.64 21.92 ~ 11 0
30 EGSIRAC J141842.08+523619.8 G 14 18 42.09538 +52 36 20.2626   24.6   23.40 22.67 ~ 7 0
31 CANDELS EGS F160W J141855.8+524748.9 G 14 18 55.76276 +52 47 48.8912   23.77   22.41 21.08 ~ 10 0
32 CANDELS EGS F160W J141859.2+524716.8 G 14 18 59.20044 +52 47 16.5845   22.17   21.59 21.09 ~ 8 0
33 NAME Extended Groth Strip reg 14 19 +52.8           ~ 1023 0
34 CANDELS EGS F160W J141906.0+524311.7 G 14 19 06.04834 +52 43 11.6791   24.52   24.1 23.23 ~ 9 0
35 DEEP2-GRS 13011439 G 14 19 09.43577 +52 53 05.9312   23.69   22.71 21.75 ~ 9 0
36 AEGIS20 J141914.96+524930.0 rG 14 19 14.93758 +52 49 29.4085   23.13   22.67 21.74 ~ 24 0
37 CANDELS EGS F160W J141929.8+525313.0 G 14 19 29.83850 +52 53 13.0214   23.61   22.74 21.85 ~ 15 0
38 CANDELS EGS F160W J141938.1+525540.4 G 14 19 38.07582 +52 55 40.3323   24.05   23.38 22.61 ~ 9 0
39 ACS-GC 13003805 rG 14 19 40.07172 +52 49 38.4351   24.7   23.50 22.44 ~ 27 0
40 CANDELS EGS F160W J141941.1+525616.6 G 14 19 41.06709 +52 56 16.5161   24.0   22.83 21.80 ~ 10 0
41 AEGIS20 J141941.60+525255.3 rG 14 19 41.55084 +52 52 56.0629   23.40   23.07 22.02 ~ 13 0
42 [NLA2015] aegis 544 AGN 14 19 45.1386 +52 52 27.466           ~ 10 0
43 CANDELS EGS F160W J141949.0+525638.8 G 14 19 49.05467 +52 56 38.8139   24.7   23.78 22.94 ~ 10 0
44 [TCB2007] 13018312 G 14 19 58.22431 +52 55 49.4623   25.7   23.76 22.58 ~ 8 0
45 CXOEGS J142005.4+530115 G 14 20 05.40268 +53 01 15.2676   22.17   21.185 20.354 ~ 25 0
46 CANDELS EGS F160W J142010.7+525340.7 G 14 20 10.71934 +52 53 40.7382   22.91   22.55 21.95 ~ 7 0
47 CANDELS EGS F160W J142013.0+525613.4 G 14 20 13.00685 +52 56 13.4448   22.30   21.85 21.11 ~ 12 0
48 AEGIS20 J142013.01+525533.2 EmG 14 20 13.01 +52 55 33.2       24.65   ~ 14 0
49 CANDELS EGS F160W J142018.8+525605.1 G 14 20 18.85555 +52 56 05.0251   25.2   24.00 22.86 ~ 12 0
50 CANDELS EGS F160W J142021.1+530214.6 G 14 20 21.14868 +53 02 14.8023   24.040   23.517 22.917 ~ 6 0
51 CANDELS EGS F160W J142021.9+530221.8 G 14 20 21.931 +53 02 21.85   25.407   24.544 23.862 ~ 7 0
52 CANDELS EGS F160W J142022.1+530214.5 AGN 14 20 22.116 +53 02 14.38   23.59   22.58 21.76 ~ 8 0
53 CANDELS EGS F160W J142024.2+525541.0 G 14 20 24.21657 +52 55 40.9950   23.75   22.70 21.86 ~ 15 0
54 CANDELS EGS F160W J142026.4+525939.3 G 14 20 26.40725 +52 59 39.3894   23.61   22.84 22.03 ~ 10 0
55 CANDELS EGS F160W J142030.7+530148.2 G 14 20 30.71418 +53 01 48.1288   24.2   23.29 22.29 ~ 5 0
56 CANDELS EGS F160W J142040.8+530459.1 G 14 20 40.81421 +53 04 59.2539   23.946   23.496 22.850 ~ 6 0
57 CANDELS EGS F160W J142043.3+530348.8 G 14 20 43.29547 +53 03 48.7285   23.29   23.01 22.47 ~ 7 0
58 AEGIS20 J142047.63+530344.4 rG 14 20 47.63 +53 03 44.4       23.84   ~ 6 0
59 NAME MS 1512-cB58 AGN 15 14 22.2751 +36 36 25.674     20.64   20.35 ~ 326 0
60 [ESS2003] Q1623-MD66 G 16 25 40.39 +26 50 08.9           ~ 5 0
61 [ESS2003] Q1623-BX453 G 16 25 50.84 +26 49 31.4           ~ 12 0
62 [ESS2003] Q1623-BX528 G 16 25 56.44 +26 50 15.4           ~ 16 0
63 [ESS2003] Q1623-BX599 G 16 26 02.54 +26 45 31.9           ~ 26 0
64 [ESS2003] Q1623-BX663 G 16 26 04.58 +26 48 00.2           ~ 21 0
65 [ESS2003] Q1700-MD94 G 17 00 42.020 +64 11 24.22           ~ 18 0
66 [ESS2003] Q1700-MD69 G 17 00 47.610 +64 09 44.78           ~ 15 0
67 [ESS2003] Q1700-MD174 G 17 00 54.542 +64 16 24.76           ~ 15 0
68 [ESS2003] Q1700-MD103 G 17 01 00.21 +64 11 55.6           ~ 19 0
69 [ESS2003] Q1700-BX561 G 17 01 04.180 +64 10 43.83           ~ 7 0
70 [ESS2003] Q1700-BX691 G 17 01 05.99 +64 12 10.3           ~ 21 0
71 EM* MWC 349 ** 20 32 45.499080 +40 39 36.74124   15.88 13.15 12.13   Bep 837 0
72 EQ J2135-0102 ? 21 35.0 -01 02           ~ 3 0
73 NAME Eyelash LeG 21 35 11.60 -01 02 52.0           ~ 245 0
74 NAME Cosmic Eye G 21 35 12.730 -01 01 42.90           ~ 92 0
75 NGC 7469 Sy1 23 03 15.6 +08 52 26 12.60 13.00 12.34     ~ 2253 3
76 [ESS2003] Q2343-BX610 G 23 46 09.43 +12 49 19.2           ~ 57 0
77 [ESS2003] Q2343-BX513 G 23 46 11.13 +12 48 32.1           ~ 11 0
78 [ESS2003] Q2343-BX442 G 23 46 19.36 +12 47 59.7           ~ 21 0
79 [ESS2003] Q2343-MD59 G 23 46 26.90 +12 47 39.9           ~ 14 0
80 [ESS2003] Q2343-BX389 G 23 46 28.90 +12 47 33.6           ~ 38 0
81 [ESS2003] Q2343-BX474 G 23 46 32.88 +12 48 14.1           ~ 5 0
82 [ESS2003] Q2346-BX482 G 23 48 12.97 +00 25 46.3           ~ 40 0

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