J/A+A/668/A60 Extreme emission line galaxies in J-PLUS (Lumbreras-Calle+, 2022)
J-PLUS:
Uncovering a large population of extreme [OIII] emitters in the local Universe.
Lumbreras-Calle A., Lopez-Sanjuan C., Sobral D., Fernandez-Ontiveros J.A.,
Vilchez J.M., Hernan-Caballero A., Akhlaghi M., Diaz-Garcia L.A.,
Alcaniz J., Angulo R.E., Cenarro A.J., Cristobal-Hornillos D., Dupke R.A.,
Ederoclite A., Hernandez-Monteagudo C., Marin-Franch A., Moles M.,
Sodre Jr.L., Vazquez Ramio H., Varela J.
<Astron. Astrophys. 668, A60 (2022)>
=2022A&A...668A..60L 2022A&A...668A..60L (SIMBAD/NED BibCode)
ADC_Keywords: Galaxies, optical ; Photometry, narrow-band ; Photometry, SDSS ;
Redshifts ; Balmer lines ; Equivalent widths ; Extinction
Keywords: galaxies: starburst - galaxies: star formation - galaxies: dwarf -
galaxies: photometry - galaxies: ISM
Abstract:
We searched for extreme emission line galaxies (EELGs) in the J-PLUS
multiband survey (Cenarro et al., 2019A&A...622A.176C 2019A&A...622A.176C). We selected
them by their excess of flux in the J0515 medium band filter, covering
the [OIII] emission line doublet at z<0.06. Over the 2000 square
degrees observed in the second data release of the survey, we
identified 466 EELGs with equivalent width (EW) above 300 Ansgroms in
[OIII], after removing higher redshift contaminants using infrared
data. Most of the galaxies are compact and 411 of them were previously
unknown. We perform spectral energy distribution (SED) fitting using
CIGALE (Boquien et al., 2019A&A...622A.103B 2019A&A...622A.103B, Cat. J/A+A/622/A103) and
we find that the sample has low stellar mass
(Mstar∼108.1M☉), low metallicity, little dust extinction,
and very young star formation bursts (∼3Myr). This selection is 20
times more efficient finding EELGs than previous broadband surveys,
and as complete as magnitude-limited spectroscopic surveys while
reaching fainter targets.
Description:
In table 3, we show the main physical properties of the sample of
galaxies, derived from SED fitting on the J-PLUS photometry using
CIGALE (Boquien et al., 2019A&A...622A.103B 2019A&A...622A.103B, Cat. J/A+A/622/A103).
In table 4, we present the corrected photometry of the 466 EELGs we
identify, and their estimated equivalent width of [OIII] and Halpha.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 148 466 Main physical properties of the sample of galaxies
table4.dat 580 466 Corrected photometry and estimated equivalent
width of [OIII] and Halpha of identified EELGs
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See also:
J/A+A/622/A103 : Python Code Investigating GALaxy Emission (Boquien+, 2019)
Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 11 I11 --- Name Galaxy designation (1)
13- 29 F17.13 deg RAdeg Right Ascension (J2000)
31- 46 F16.13 deg DEdeg Declination (J2000)
48- 53 F6.4 --- z Redshift (2)
55- 70 F16.14 Msun Mass Stellar mass (2)
72- 91 F20.18 --- MassRatio Ratio between the young and old
stellar population masses (2)
93 I1 Myr AgeYoungPop Young population (burst) age (2)
96-103 E8.4 --- Z Stellar metallicity (2)
105-108 F4.1 [-] log(U) Ionization parameter (2)
110-112 F3.1 mag E(B-V) Color excess (2)
114-130 F17.13 mW/m2 F([OIII]5007) Flux of the [OIII]5007 emission line (2)
132-148 F17.13 mW/m2 F(Halpha) Flux of the Halpha emission line (2)
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Note (1): Name constructed as follows: The first five digits correspond to the
TILE_ID of the source in the J-PLUS DR2, while the last six (excluding leading
zeroes) correspond to the NUMBER of the source.
Note (2): These results are obtained through SED fitting on the J-PLUS
photometry of the targets (see Table 4) using CIGALE (see text of the paper
for details).
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Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 11 I11 --- Name Galaxy designation (1)
13- 29 F17.13 deg RAdeg Right Ascension (J2000)
31- 46 F16.13 deg DEdeg Declination (J2000)
48- 63 F16.13 mag rmag Magnitude in J-PLUS rSDSS filter (2)
65- 82 F18.16 mag e_rmag Magnitude erro in J-PLUS rSDSS filter (2)
84- 99 F16.13 mag gmag Magnitude in J-PLUS gSDSS filter (2)
101-118 F18.16 mag e_gmag Magnitude error in J-PLUS gSDSS filter (2)
120-135 F16.13 mag imag Magnitude in J-PLUS iSDSS filter (2)
137-154 F18.16 mag e_imag Magnitude error in J-PLUS iSDSS filter (2)
156-171 F16.13 mag zmag Magnitude in J-PLUS zSDSS filter (2)
173-190 F18.16 mag e_zmag Magnitude in J-PLUS zSDSS filter (2)
192-209 F18.13 mag umag ?=9999 Magnitude in J-PLUS uJava filter (2)
211-231 F21.16 mag e_umag ?=9999 Magnitude error in J-PLUS uJava
filter (2)
233-250 F18.13 mag J0378mag ?=9999 Magnitude in J-PLUS J0378 filter (2)
252-272 F21.16 mag e_J0378mag ?=9999 Magnitude error in J-PLUS J0378
filter (2)
274-291 F18.13 mag J0395mag ?=9999 Magnitude in J-PLUS J0395 filter (2)
293-313 F21.16 mag e_J0395mag ?=9999 Magnitude error in J-PLUS J0395
filter (2)
315-332 F18.13 mag J0410mag ?=9999 Magnitude in J-PLUS J0410 filter (2)
334-354 F21.16 mag e_J0410mag ?=9999 Magnitude error in J-PLUS J0410
filter (2)
356-373 F18.13 mag J0430mag ?=9999 Magnitude in J-PLUS J0430 filter (2)
375-395 F21.16 mag e_J0430mag ?=9999 Magnitude error in J-PLUS J0430
filter (2)
397-412 F16.13 mag J0515mag Magnitude error in J-PLUS J0515 filter (2)
414-431 F18.16 mag e_J0515mag Magnitude in J-PLUS J0515 filter (2)
433-450 F18.13 mag J0660mag ?=9999 Magnitude in J-PLUS J0660 filter (2)
452-469 F18.16 mag e_J0660mag Magnitude error in J-PLUS J0660 filter (2)
471-486 F16.13 mag J0861mag ?=9999 Magnitude in J-PLUS J0861 filter (2)
488-505 F18.16 mag e_J0861mag ?=- Magnitude error in J-PLUS J0861
filter (2)
507-523 F17.12 0.1nm EW([OIII]) Equivalent width of [OIII]5007+4959 (3)
525-542 F18.14 0.1nm e_EW([OIII]) Error in the equivalent width of
[OIII]5007+4959
544-562 F19.14 0.1nm EW(Halpha) Equivalent width of Halpha (4)
564-580 F17.13 0.1nm e_EW(Halpha) Error in the equivalent width of Halpha
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Note (1): Name constructed as follows: The first five digits correspond to the
TILE_ID of the source in J-PLUS DR2, while the last six (excluding leading
zeroes) correspond to the NUMBER of the source.
Note (2): The photometry presented in this table corresponds to the PSFCOR
photometry in J-PLUS DR2, re-scaled to the AUTO photometry using the rSDSS
value and corrected for the extinction of the Milky Way (see text of the paper
for more details).
Note (3): Equivalent width derived using the continuum from a CIGALE SED fit
and the flux in the J0515 filter.
Note (4): Equivalent width derived using the continuum from a CIGALE SED fit
and the flux in the rSDSS filter.
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Acknowledgements:
Alejandro Lumbreras-Calle, alumbrerascalle(a/) gmail .com
(End) Patricia Vannier [CDS] 09-Nov-2022