J/ApJS/234/35  Stellar population synthesis of clumps  (Zaragoza-Cardiel+, 2018)

Stellar population synthesis of star-forming clumps in galaxy pairs and non- interacting spiral galaxies. Zaragoza-Cardiel J., Smith B.J., Rosado M., Beckman J.E., Bitsakis T., Camps-Farina A., Font J., Cox I.S. <Astrophys. J. Suppl. Ser., 234, 35 (2018)> =2018ApJS..234...35Z 2018ApJS..234...35Z
ADC_Keywords: Galaxies, photometry; Star Forming Region; Photometry, infrared; Photometry, ultraviolet ; Photometry, SDSS Keywords: galaxies: fundamental parameters; galaxies: interactions; galaxies: photometry; galaxies: star formation Abstract: We have identified 1027 star-forming complexes in a sample of 46 galaxies from the Spirals, Bridges, and Tails (SB&T) sample of interacting galaxies, and 693 star-forming complexes in a sample of 38 non-interacting spiral (NIS) galaxies in 8µm observations from the Spitzer Infrared Array Camera. We have used archival multi-wavelength UV-to IR observations to fit the observed spectral energy distribution of our clumps with the Code Investigating GALaxy Emission using a double exponentially declined star formation history. We derive the star formation rates (SFRs), stellar masses, ages and fractions of the most recent burst, dust attenuation, and fractional emission due to an active galactic nucleus for these clumps. The resolved star formation main sequence holds on 2.5kpc scales, although it does not hold on 1kpc scales. We analyzed the relation between SFR, stellar mass, and age of the recent burst in the SB&T and NIS samples, and we found that the SFR per stellar mass is higher in the SB&T galaxies, and the clumps are younger in the galaxy pairs. We analyzed the SFR radial profile and found that the SFR is enhanced through the disk and in the tidal features relative to normal spirals. Description: The data we used for this study include the GALEX NUV and FUV, Spitzer IRAC 3.6um, 4.5um, 5.8um, 8.0um, and Spitzer MIPS 24um data used in Smith+ (2016AJ....151...63S 2016AJ....151...63S). For the current study, for the 37 out of 46 galaxy pairs, and the 31 out of 38 spirals with optical Sloan Digitized Sky Survey (SDSS) images we used those data as well. For all of the galaxies in the sample, we also carried out clump photometry using the J, H, and Ks maps from the 2MASS survey. We have identified the clumps in smoothed 8um observations from the Spitzer Infrared Array Camera (IRAC). See section 2.2 for further details. File Summary: -------------------------------------------------------------------------------- FileName Lrecl Records Explanations -------------------------------------------------------------------------------- ReadMe 80 . This file table2.dat 51 95 *Spirals, Bridges, and Tails (SB&T) galaxies sample (Smith+ 2007, J/AJ/133/791 ; 2010, J/AJ/139/1212) table3.dat 40 38 *Non-interacting spiral (NIS) galaxies sample (Kennicutt+ 2003PASP..115..928K 2003PASP..115..928K & Gil de Paz+ 2007, J/ApJS/173/185) table4.dat 340 1720 GALEX, Spitzer, SDSS, Hα, and 2MASS photometry for the clumps table5.dat 99 1528 Output parameters of CIGALE (Code for Investigating GALaxy Emission; Noll+ 2009A&A...507.1793N 2009A&A...507.1793N) table6.dat 290 130 GALEX, Spitzer, SDSS, Hα, and 2MASS photometry for the SB&T and NIS galaxies -------------------------------------------------------------------------------- Note on table2.dat & table3.dat: All the parameters, except the distance, are extracted from the Hyperleda database (Makarov+ 2014A&A...570A..13M 2014A&A...570A..13M); http://leda.univ-lyon1.fr/ -------------------------------------------------------------------------------- See also: VII/237 : HYPERLEDA. I. Catalog of galaxies (Paturel+, 2003) VII/233 : The 2MASS Extended sources (IPAC/UMass, 2003-2006) V/147 : The SDSS Photometric Catalogue, Release 12 (Alam+, 2015) J/ApJ/633/871 : Positions and photometry of HII knots in M51 (Calzetti+, 2005) J/AJ/131/716 : Ha scale length in Virgo & field spirals (Koopmann+, 2006) J/ApJS/173/185 : GALEX ultraviolet atlas of nearby galaxies (Gil de Paz+, 2007) J/AJ/133/791 : Spitzer photom. of normal & interacting gal. (Smith+, 2007) J/AJ/139/1212 : SDSS photometry of interacting galaxies (Smith+, 2010) J/MNRAS/451/1307 : HII regions in 10 galaxies (Zaragoza-Cardiel+, 2015) Byte-by-byte Description of file: table2.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 8 A8 --- Syst System 10- 15 F6.1 Mpc Dist [8.5/142]? Distance from NED (G1) 17- 25 A9 --- Gal Galaxy name 27- 30 A4 --- Morph Morphological type 32- 35 F4.2 0.1arcmin logD25 [0.3/2.2] Log of the length the projected major axis of a galaxy at the isophotal level 25mag/arcsec2 in the B-band 37- 40 F4.2 --- logR25 [0/1.1] Log of the axis ratio of the isophote 25mag/arcsec2 in the B-band 42- 46 F5.1 deg PA [0.5/179.1]? Position angle of the major axis of the isophote 25mag/arcsec^2 in the B-band (north Eastwards) 48- 51 F4.1 deg inc [0/90] Inclination -------------------------------------------------------------------------------- Byte-by-byte Description of file: table3.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 8 A8 --- Gal Galaxy name 10- 14 F5.1 Mpc Dist [3.3/132.6] Distance from NED (G1) 16- 19 A4 --- Morph Morphological type 21- 24 F4.2 0.1arcmin logD25 [1/2.3] Log of the length the projected major axis of a galaxy at the isophotal level 25mag/arcsec2 in the B-band 26- 29 F4.2 --- logR25 [0.01/1] Log of the axis ratio of the isophote 25mag/arcsec2 in the B-band 31- 35 F5.1 deg PA [23/173] Position angle of the major axis of the isophote 25mag/arcsec^2 in the B-band (north Eastwards) 37- 40 F4.1 deg inc [11/90] Inclination -------------------------------------------------------------------------------- Byte-by-byte Description of file: table4.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 27 A27 --- Name Name of the identified clump 29- 39 F11.7 deg RAdeg Right Ascension (J2000) 41- 54 F14.10 deg DEdeg Declination (J2000) 56- 64 A9 --- Gal Name of the galaxy 66- 73 F8.4 mJy NUVFlux [0.001/115]? GALEX NUV band flux 75- 80 F6.4 mJy e_NUVFlux [0.0001/0.2]? Error in NUVFlux (G2) 82- 91 F10.7 mJy FUVFlux [0.001/86.7]? GALEX FUV band flux 93-101 F9.7 mJy e_FUVFlux [2e-07/0.1]? Error in FUVFlux (G2) 103-111 F9.4 mJy 3.6Flux [0.003/2692]? Spitzer/IRAC 3.6um band flux 113-118 F6.4 mJy e_3.6Flux [0.0004/0.3]? Error in 4.5Flux (G2) 120-128 F9.4 mJy 4.5Flux [0.003/1697] Spitzer/IRAC 4.5um band flux 130-135 F6.4 mJy e_4.5Flux [0.0004/0.2]? Error in 4.5Flux (G2) 137-144 F8.3 mJy 5.8Flux [0.01/2777]? Spitzer/IRAC 5.8um band flux 146-150 F5.3 mJy e_5.8Flux [0.001/0.5]? Error in 5.8Flux (G2) 152-159 F8.3 mJy 8Flux [0.02/5358] Spitzer/IRAC 8um band flux 161-165 F5.3 mJy e_8Flux [0.002/2]? Error in 8Flux (G2) 167-174 F8.3 mJy 24Flux [0.06/8890]? Spitzer/MIPS 24um band flux 176-180 F5.2 mJy e_24Flux [0/20]? Error in 24Flux (G2) 182-189 F8.4 mJy uFlux [0.009/540]? SDSS u band flux 191-196 F6.4 mJy e_uFlux [0.0009/0.2]? Error in uFlux (G2) 198-206 F9.4 mJy gFlux [0.004/1171]? SDSS g band flux 208-213 F6.4 mJy e_gFlux [0.0006/0.3]? Error in gFlux (G2) 215-223 F9.4 mJy rFlux [0.007/2142]? SDSS r band flux 225-230 F6.4 mJy e_rFlux [0.0008/1]? Error in rFlux (G2) 232-239 F8.3 mJy iFlux [0.01/2992]? SDSS i band flux 241-245 F5.3 mJy e_iFlux [0.001/1]? Error in iFlux (G2) 247-254 F8.3 mJy zFlux [0.03/3744]? SDSS z band flux 256-260 F5.3 mJy e_zFlux [0.003/0.5]? Error in zFlux (G2) 262-270 F9.4 mJy Ha+Cont [0.02/3470]? Halpha plus continuum flux 272-277 F6.4 mJy e_Ha+Cont [0.00001/1]? Error in Ha+Cont (G2) 279-289 E11.5 mW/m2 Ha [/1.3e-11]? Halpha continuum subtracted flux 291-295 E5.0 mW/m2 e_Ha [/8e-15]? Error in Ha 297-304 F8.3 mJy HFlux [0.05/6193]? 2MASS H band flux 306-310 F5.3 mJy e_HFlux [0.009/1]? Error in HFlux (G2) 312-319 F8.3 mJy JFlux [0.03/5184]? 2MASS J band flux 321-325 F5.3 mJy e_JFlux [0.006/0.9]? Error in JFlux (G2) 327-334 F8.3 mJy KsFlux [0.06/5085]? 2MASS Ks band flux 336-340 F5.3 mJy e_KsFlux [0.009/1]? Error in KsFlux (G2) -------------------------------------------------------------------------------- Byte-by-byte Description of file: table5.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 26 A26 --- Name Name of the identified clump 28- 34 E7.1 Msun/yr SFR [0/99] Star formation rate 36- 42 E7.1 Msun/yr e_SFR [1e-06/6] Log of SFR 44- 48 F5.2 [Msun] logM* [4/11.4] Log of stellar mass 50- 53 F4.2 [Msun] e_logM* [0.05/6] Error in logM* 55- 59 F5.1 Myr Age [0/500] Age of recent burst of star formation 61- 66 F6.2 Myr e_Age [0.05/200] Error in AgeBurst 68- 71 F4.2 --- FBurst [0/1] Fraction of recent burst of star formation 73- 79 E7.1 --- e_FBurst [0/0.4] Error in FBurst 81- 85 F5.3 mag AHa [0.02/6.3]? Dust attenuation in Halpha 87- 91 F5.3 mag AFUV [0.04/7.3] Dust attenuation in FUV 93- 99 F7.4 --- Chi2 [0.007/10] Reduced chi-square -------------------------------------------------------------------------------- Byte-by-byte Description of file: table6.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 8 A8 --- Syst Name of the system 10- 26 A17 --- Gal Name of the galaxy 28- 36 F9.5 mJy NUVFlux [0.03/148]? GALEX NUV band flux 38- 44 F7.5 mJy e_NUVFlux [/0.07]? Error in NUVFlux (G2) 46- 54 F9.5 mJy FUVFlux [0.008/110.1]? GALEX FUV band flux 56- 62 F7.5 mJy e_FUVFlux [/0.03]? Error in FUVFlux (G2) 64- 71 F8.3 mJy 3.6Flux [1/3947]? Spitzer/IRAC 3.6um band flux 73- 77 F5.3 mJy e_3.6Flux [0.001/0.5]? Error in 4.5Flux (G2) 79- 86 F8.3 mJy 4.5Flux [0.7/2321] Spitzer/IRAC 4.5um band flux 88- 92 F5.3 mJy e_4.5Flux [0.001/0.3]? Error in 4.5Flux (G2) 94-101 F8.3 mJy 5.8Flux [0.08/4950]? Spitzer/IRAC 5.8um band flux 103-107 F5.3 mJy e_5.8Flux [0.007/0.8]? Error in 5.8Flux (G2) 109-119 F11.5 mJy 8Flux [0.6/12950] Spitzer/IRAC 8um band flux 121-129 F9.5 mJy e_8Flux [/100]? Error in 8Flux (G2) 131-139 F9.3 mJy 24Flux [0.3/20937]? Spitzer/MIPS 24um band flux 141-145 F5.3 mJy e_24Flux [0.001/0.08]? Error in 24Flux (G2) 147-153 F7.3 mJy uFlux [0.2/743]? SDSS u band flux 155-159 F5.3 mJy e_uFlux [0.003/0.2]? Error in uFlux (G2) 161-168 F8.3 mJy gFlux [0.9/1525]? SDSS g band flux 170-174 F5.3 mJy e_gFlux [0.001/0.4]? Error in gFlux (G2) 176-183 F8.3 mJy rFlux [1.4/2768]? SDSS r band flux 185-189 F5.3 mJy e_rFlux [0.003/0.3]? Error in rFlux (G2) 191-198 F8.3 mJy iFlux [1.9/4324.1]? SDSS i band flux 200-204 F5.3 mJy e_iFlux [0.002/0.1]? Error in iFlux (G2) 206-212 F7.2 mJy zFlux [2/5625]? SDSS z band flux 214-217 F4.2 mJy e_zFlux [0.01/1]? Error in zFlux (G2) 219-225 F7.2 mJy Ha+Cont [1.3/7960]? Halpha plus continuum flux 227-231 F5.2 mJy e_Ha+Cont [0.01/20]? Error in Ha+Cont (G2) 233-242 E10.4 mW/m2 Ha [8e-16/2e-11]? Halpha continuum subtracted flux 244-248 E5.0 mW/m2 e_Ha [2e-16/5e-14]? Error in Ha 250-256 F7.2 mJy HFlux [3/9580]? 2MASS H band flux 258-261 F4.2 mJy e_HFlux [0.05/9]? Error in HFlux (G2) 263-269 F7.2 mJy JFlux [2/7992]? 2MASS J band flux 271-275 F5.2 mJy e_JFlux [0.03/10]? Error in JFlux (G2) 277-284 F8.3 mJy KsFlux [2/7855]? 2MASS Ks band flux 286-290 F5.3 mJy e_KsFlux [0.06/7]? Error in KsFlux (G2) -------------------------------------------------------------------------------- Global notes: Note (G1): Distance from the NASA Extragalactic Database (NED), using H0=73km/s/Mpc, with Virgo, Great Attractor, and Shapley Supercluster infall models. Note (G2): A blank error when a flux is given indicates the flux is an upper limit. -------------------------------------------------------------------------------- History: From electronic version of the journal
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 23-Mar-2018
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