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J/A+A/609/A102  Inner/outer HII regions: galaxy sample  (Rodriguez-Baras+, 2018)

Inner and outer star forming regions over the disks of spiral galaxies. I. Sample characterization. Rodriguez-Baras M., Diaz A.I., Rosales-Ortega F.F., Sanchez S.F. <Astron. Astrophys. 609, A102 (2018)> =2018A&A...609A.102R (SIMBAD/NED BibCode)
ADC_Keywords: Spectroscopy ; H II regions ; Interstellar medium ; Galaxies, optical ; Galaxies, spectra Keywords: methods: data analysis - techniques: imaging spectroscopy - galaxies: spirals - ISM: HII regions Abstract: Using integral field spectroscopy (IFS) observations we aim to perform a systematic study and comparison of two inner and outer HII regions samples. The spatial resolution of the IFS, the number of objects and the homogeneity and coherence of the observations allow a complete characterization of the main observational properties and differences of the regions. We analyzed a sample of 725 inner HII regions and a sample of 671 outer HII regions, all of them detected and extracted from the observations of a sample of 263 nearby, isolated, spiral galaxies observed by the CALIFA survey. We find that inner HII regions show smaller equivalent widths, greater extinction and luminosities, along with greater values of [NII] λ6583/Hα and [OII] λ3727/[OIII] λ5007 emission-line ratios, indicating higher metallicities and lower ionization parameters. Inner regions have also redder colors and higher photometric and ionizing masses, although Mion/Mphot is slightly higher for the outer regions. This work shows important observational differences between inner and outer HII regions in star forming galaxies not previously studied in detail. These differences indicate that inner regions have more evolved stellar populations and are in a later evolution state with respect to outer regions, which goes in line with the inside-out galaxy formation paradigm. Description: Physical properties for 263 isolated spiral galaxies, observed by the CALIFA survey, are presented. These galaxies compose this work galaxy sample. For each galaxy redshift, morphological type, inclination, distance, effective radius, g and r SDSS magnitudes, absolute B magnitude and total number of HII regions extracted in the galaxy are given. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table4.dat 73 263 Physical properties for 263 galaxies
See also: J/A+A/559/A114 : Updated O3N2 and N2 abundance indicators (Marino+, 2013) J/A+A/573/A59 : Gas kinematics in CALIFA survey (Garcia-Lorenzo+, 2015) J/A+A/576/A135 : CALIFA DR2 (Garcia-Benito+, 2015) J/A+A/581/A103 : CALIFA survey across the Hubble sequence (Gonzalez+, 2015) J/A+A/582/A21 : Merging galaxies (mis)alignments (Barrera-Ballesteros+, 2015) J/A+A/584/A87 : CALIFA sample SFR calibration (Catalan-Torrecilla+, 2015) J/A+A/585/A47 : CALIFA color/metallicity gradients connections (Marino+, 2016) J/A+A/587/A70 : CALIFA face-on spiral galaxies oxygen (Sanchez-Menguiano+, 2016) J/A+A/593/A114 : CALIFA space density distribution of galaxies (Bekeraite+, 2016) J/A+A/595/A62 : CALIFA galaxies O/H and N/O slopes (Perez-Montero+, 2016) J/A+A/597/A48 : Stellar kinematics in CALIFA survey (Falcon-Barroso+, 2017) J/A+A/598/A32 : 2D decomposition of CALIFA galaxies (Mendez-Abreu+, 2017) J/A+A/604/A4 : CALIFA galaxies observational hints (Ruiz-Lara+, 2017) J/ApJ/826/71 : Growth curves of CALIFA spiral galaxies (Iglesias-Paramo+, 2016) Byte-by-byte Description of file: table4.dat
Bytes Format Units Label Explanations
1- 23 A23 --- Name Galaxy name 25- 29 F5.3 --- z Redshift 31- 33 A3 --- Mtype Morphological type 35- 38 F4.1 --- Incl Inclination 40- 45 F6.2 Mpc Dist Distance 47- 51 F5.2 kpc Reff Effective radius 53- 57 F5.2 mag gmag g SDSS magnitude 59- 63 F5.2 mag rmag r SDSS magnitude 65- 70 F6.2 mag BMAG Absolute B magnitude 72- 73 I2 --- Nt Total number of HII regions extracted
Acknowledgements: Marina Rodriguez-Baras, mrodriguezbaras(at)
(End) Marina Rodriguez-Baras [UAM, Spain], Patricia Vannier [CDS] 14-Nov-2017
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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