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:
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FileName Lrecl Records Explanations
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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
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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/
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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
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Byte-by-byte Description of file: table3.dat
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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
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Byte-by-byte Description of file: table4.dat
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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)
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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
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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)
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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.
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History:
From electronic version of the journal
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 23-Mar-2018