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J/A+A/504/751       GOODS-MUSIC catalog updated version        (Santini+, 2009)

Star formation and mass assembly in high redshift galaxies. Santini P., Fontana A., Grazian A., Salimbeni S., Fiore F., Fontanot F., Boutsia K., Castelllano M., Cristiani S.,De Santis C., Gallozzi S., Giallongo E., Nonino M., Menci N., Paris D., Pentericci L., Vanzella E. <Astron. Astrophys. 504, 751 (2009)> =2009A&A...504..751S
ADC_Keywords: Galaxies, photometry ; Galaxy catalogs ; Redshifts Keywords: galaxies: evolution - galaxies: high-redshift - galaxies: fundamental parameters - galaxies: photometry - galaxies: starburst Abstract: The goal of this work is to infer the star formation properties and the mass assembly process of high redshift (0.3≤z<2.5) galaxies from their IR emission using the 24 micron band of MIPS-Spitzer. We used an updated version of the GOODS-MUSIC catalog, which has multiwavelength coverage from 0.3 to 24 micron and either spectroscopic or accurate photometric redshifts. We describe how the catalog has been extended by the addition of mid-IR fluxes derived from the MIPS 24 micron image. We compared two different estimators of the star formation rate (SFR hereafter). One is the total infrared emission derived from 24 micron, estimated using both synthetic and empirical IR templates. The other one is a multiwavelength fit to the full galaxy SED, which automatically accounts for dust reddening and age-star formation activity degeneracies. For both estimates, we computed the SFR density and the specific SFR. We show that the two SFR indicators are roughly consistent, once the uncertainties involved are taken into account. However, they show a systematic trend, IR-based estimates exceeding the fit-based ones as the star formation rate increases. With this new catalog, we show that: a) at z>0.3, the star formation rate is correlated well with stellar mass, and this relationship seems to steepen with redshift if one relies on IR-based estimates of the SFR; b) the contribution to the global SFRD by massive galaxies increases with redshift up to ∼2.5, more rapidly than for galaxies of lower mass, but appears to flatten at higher z; c) despite this increase, the most important contributors to the SFRD at any z are galaxies of about, or immediately lower than, the characteristic stellar mass; d) at z∼2, massive galaxies are actively star-forming, with a median SFR ∼ 300M/yr. During this epoch, our targeted galaxies assemble a substantial part of their final stellar mass; e) the specific SFR (SSFR) shows a clear bimodal distribution. The analysis of the SFR density and the SSFR seems to support the downsizing scenario, according to which high mass galaxies have formed their stars earlier and more rapidly than their low mass counterparts. A comparison with renditions of theoretical simulations of galaxy formation and evolution indicates that these models follow the global increase in the SSFR with redshift and predict the existence of quiescent galaxies even at z>1.5. However, the average SSFR is systematically underpredicted by all models considered. Description: The GOODS-MUSIC multiwavelength catalog provides photometric and spectroscopic information for galaxies in the GOODS Southern field. It includes two U images obtained with the ESO 2.2m telescope and one U band image from VLT-VIMOS, the ACS-HST images in four optical (B,V,i,z) bands, the VLT-ISAAC J, H, and Ks bands as well as the Spitzer images at 3.6, 4.5, 5.8, and 8 micron (IRAC) and 24 micron (MIPS). Most of these images have been made publicly available in the coadded version by the GOODS team, while the U band data were retrieved in raw format and reduced by our team. We also collected all the available spectroscopic information from public spectroscopic surveys and cross-correlated the spectroscopic redshifts with our photometric catalog. For the unobserved fraction of the objects, we applied our photometric redshift code to obtain well-calibrated photometric redshifts. The final catalog is made up of 15208 objects, with 209 known stars and 61 AGNs. The major new feature of this updated release is the inclusion of 24 micron photometry. Further improvements concern a revised photometry in the four IRAC bands (mainly based on the use of new PSF-matching kernerls and on a revised procedure for estimating the background), the enlargement of the sample of galaxies with spectroscopic redshifts, the addition of objects selected on the IRAC 4.5 micron image and a more careful selection of AGN sources. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file catalog.dat 412 18657 Multiwavelength catalog (photometry, spectroscopy and magnitude limits)
See also: J/A+A/434/53 : GOODS-South Field redshifts (Vanzella+, 2005) J/A+A/454/423 : GOODS-South Field VLT/FORS2 redshifts. II. (Vanzella+, 2006) J/A+A/478/83 : GOODS-South Field VLT/FORS2 redshifts. III. (Vanzella+, 2008) J/A+A/449/951 : GOODS-MUSIC sample: multicolour catalog (Grazian+, 2006) Byte-by-byte Description of file: catalog.dat
Bytes Format Units Label Explanations
1- 5 I5 --- Seq Identification number (GOODS-MUSIC NNNNN in Simbad) 7- 16 F10.7 deg RAdeg Right ascension (J2000) 18- 28 F11.7 deg DEdeg Declination (J2000) 30 A1 --- l_U35 [-] Limit flag on U35 magitude (upper limit) 31- 38 F8.5 mag U35 ?=99.00000 U35 magnitude (1) 40 A1 --- l_U38 [-] Limit flag on U38 magnitude (upper limit) 41- 48 F8.5 mag U38 ?=99.00000 U38 magnitude (1) 50 A1 --- l_Uvimos [-] Limit flag on Uvimos (upper limit) 51- 58 F8.5 mag Uvimos ?=99.00000 U-VIMOS magnitude (1) 60 A1 --- l_Bmag [-] Limit flag on Bmag (upper limit) 61- 68 F8.5 mag Bmag ?=99.00000 B magnitude (1) 70 A1 --- l_Vmag [-] Limit flag on Vmag (upper limit) 71- 78 F8.5 mag Vmag ?=99.00000 V magnitude (1) 80 A1 --- l_Imag [-] Limit flag on Imag (upper limit) 81- 88 F8.5 mag Imag ?=99.00000 I magnitude (1) 90 A1 --- l_Zmag [-] Limit flag on Zmag (upper limit) 91- 98 F8.5 mag Zmag ?=99.00000 Z magnitude (1) 100 A1 --- l_Jmag [-] Limit flag on Jmag (upper limit) 101-108 F8.5 mag Jmag ?=99.00000 J magnitude (1) 110 A1 --- l_Hmag [-] Limit flag on Hmag (upper limit) 111-118 F8.5 mag Hmag ?=99.00000 H magnitude (1) 120 A1 --- l_Ksmag [-] Limit flag on Ksmag (upper limit) 121-128 F8.5 mag Ksmag ?=99.00000 Ks magnitude (1) 130 A1 --- l_3.6mag [-] Limit flag on 3.6mag (upper limit) 131-138 F8.5 mag 3.6mag ?=99.00000 IRAC 3.6 micron magnitude (1) 140 A1 --- l_4.5mag [-] Limit flag on 4.5mag (upper limit) 141-148 F8.5 mag 4.5mag ?=99.00000 IRAC 4.5 micron magnitude (1) 150 A1 --- l_5.8mag [-] Limit flag on 5.8mag (upper limit) 151-158 F8.5 mag 5.8mag ?=99.00000 IRAC 5.8 micron magnitude (1) 160 A1 --- l_8.0mag [-] Limit flag on 8.0mag (upper limit) 161-168 F8.5 mag 8.0mag ?=99.00000 IRAC 8.0 micron magnitude (1) 170 A1 --- l_24mag [-] Limit flag on 24mag (upper limit) 171-178 F8.5 mag 24mag ?=99.00000 MIPS 24 micron magnitude (1) 180-187 F8.5 mag e_U35 ?=99.00000 U35 magnitude error 189-196 F8.5 mag e_U38 ?=99.00000 U38 magnitude error 198-205 F8.5 mag e_Uvimos ?=99.00000 U-VIMOS magnitude error 207-214 F8.5 mag e_Bmag ?=99.00000 B magnitude error 216-223 F8.5 mag e_Vmag ?=99.00000 V magnitude error 225-232 F8.5 mag e_Imag ?=99.00000 I magnitude error 234-241 F8.5 mag e_Zmag ?=99.00000 Z magnitude error 243-250 F8.5 mag e_Jmag ?=99.00000 J magnitude error 252-259 F8.5 mag e_Hmag ?=99.00000 H magnitude error 261-268 F8.5 mag e_Ksmag ?=99.00000 Ks magnitude error 270-277 F8.5 mag e_3.6mag ?=99.00000 IRAC 3.6 micron magnitude error 279-286 F8.5 mag e_4.5mag ?=99.00000 IRAC 4.5 micron magnitude error 288-295 F8.5 mag e_5.8mag ?=99.00000 IRAC 5.8 micron magnitude error 297-304 F8.5 mag e_8.0mag ?=99.00000 IRAC 8.0 micron magnitude error 306-313 F8.5 mag e_24mag ?=99.00000 MIPS 24 micron magnitude error 316-324 F9.6 --- zsp ?=-1.000000 Spectroscopic redshift (1) 326-334 A9 --- Class Spectroscopic class (2) 336-343 A8 --- r_Class Spectroscopic Catalog (3) 345-346 I2 --- q_zsp ?=99 Quality of spectroscopic redshift (4) 348-356 F9.6 --- zphot ?=-1.000000 Photometric redshift 358-366 F9.6 --- zbest ?=-1.000000 Redshift (5) 368-374 F7.4 mag Zlim ?=0.0000 Z band magnitude limit (6) 376-382 F7.4 mag Kslim Ks band magnitude limit (7) 384-388 F5.3 --- S/G [0/1] Star-galaxy classifier (8) 390-392 I3 --- blKs ?=-99 Number of contaminants in Ks band 394-396 I3 --- bl3.6 ?=* Number of contaminants in IRAC 3.6um band 398 I1 --- f24 [0/2] 24 micron photometry flag (9) 400 I1 --- pos [0/1] Position flag (10) 402 I1 --- st [0/1] Star flag (11) 404 I1 --- AGN [0/1] AGN flag (12) 406 I1 --- Gal [0/1] galaxy flag (13) 408 I1 --- C.z [0/1] 90% complete sample in z band 410 I1 --- C.Ks [0/1] 90% complete sample in Ks band 412 I1 --- C4.5 [0/1] 90% complete sample in IRAC 4.5um band
Note (1): Magnitudes are in the AB photometric system. The filter characteristics are: ----------------------------- Filter lam.c Dlam name (microns) ----------------------------- U35 0.3590 0.0222 U38 0.3680 0.0170 Uvimos 0.3780 0.0197 B (F435W) 0.4330 0.0508 V (F606W) 0.5940 0.1168 i (F775W) 0.7710 0.0710 z (F850LP) 0.8860 0.0554 J (ISAAC) 1.2550 0.1499 H (ISAAC) 1.6560 0.1479 Ks(ISAAC) 2.1630 0.1383 3.6mag 3.5620 0.3797 4.5mag 4.5120 0.5043 5.8mag 5.6860 0.6846 8.0mag 7.9360 1.4797 ----------------------------- Note (2): Spectroscopic classification consists of: EARLY = early type galaxy EMISSION = late type galaxy COMPOSITE = early+late type galaxy AGN = Active Galactic Nucleus STAR = Star GALAXY = Galaxy SNa = Type Ia supernova UNKNOWN = spectrum not available Note (3): Reference spectroscopic catalog is as follows: GOODS = Vanzella et al., 2005, Cat. J/A+A/434/53, Vanzella et al., 2006, Cat. J/A+A/454/423, Vanzella et al., 2008, Cat. J/A+A/478/83 K20 = Mignoli et al., 2005, Cat. J/A+A/437/883 CXO-CDFS = Szokoly et al., 2004, Cat. J/ApJS/155/271 VVDS = Le Fevre et al., 2004, Cat. J/A+A/428/1043 MASTER = http://www.eso.org/science/goods/spectroscopy/CDFS_Mastercat/ LCIRS = Doherty et al., 2005, Cat. J/MNRAS/361/525 COMBO-17 = Wolf et al., 2004A&A...421..913W, Cat. II/253 DADDI = Daddi et al., 2005ApJ...626..680D SIC = Cristiani et al., 2000A&A...359..489C astro-ph = Strolger et al., 2004, Cat. J/ApJ/613/200S, van der Wel et al., 2005ApJ...631..145V; Roche et al., 2006MNRAS.370...74R; Ravikumar et al., 2007, Cat. J/A+A/465/1099, Teplitz et al., 2007ApJ...659..941T; Xu et al., 2007AJ....134..169X; Gronwall et al., 2007ApJ...667...79G; Nilsson et al., 2007A&A...471...71N; Hathi et al., 2008ApJ...673..686H; Finkelstein et al., 2008ApJ...678..655F; Yang et al., 2008ASPC..390..502Y VIMOS = Popesso et al., 2009A&A...494..443P UNKNOWN = spectrum not available Note (4): Quality of spectroscopic redshift: 0 =very good 1 = good 2 = uncertain 3 = bad quality 99 = not available Note (5): redshift=spectroscopic redshift if gal=1 (13) and q_zsp<2 (4), redshift=photometric redshift if gal=1 and q_zsp≥2, redshift=-1.0 if gal=0. Note (6): Magnitude limit in the z band in 1 sq. arcsec. and at S/N=1. Note (7): Magnitude limit in the Ks band in 1 sq. arcsec. and at S/N=1. Note (8): Star/Galaxy index of SExtractor. Note (9): 24 micron photometry flag: 0 = OK, 1 = uncertain, 2 = problem Note (10): Position flag: 1 = inside GOODS-MUSIC area, 0 = outside Note (11): Star flag (on the basis of spectroscopy, morphology, and BzK colours): 1 = probable star 0 = no star or outside area Note (12): AGN flag (based on spectroscopy, X-ray emission and morphology): 1 = probable AGN 0 = no AGN or outside area Note (13): Galaxy flag: 0 = not galaxy 1 = galaxy (when position flag=1 and star flag=0 and AGN flag=0)
Acknowledgements: P. Santini, santini(at)oa-roma.inaf.it
(End) P. Santini [INAF, Osser. Astron. di Roma], P. Vannier [CDS] 26-Jun-2009
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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