J/A+A/648/A64 Star formation quenching stages of galaxies (Kalinova+, 2021)
Star formation quenching stages of active and non-active galaxies.
Kalinova V., Colombo D., Sanchez S.F., Kodaira K., Garcia-Benito R.,
Gonzalez Delgado R., Rosolowsky E., Lacerda E.A.D.
<Astron. Astrophys., 648, A64 (2021)>
=2021A&A...648A..64K 2021A&A...648A..64K (SIMBAD/NED BibCode)
ADC_Keywords: Active gal. nuclei ; Morphology
Keywords: galaxies: evolution - galaxies: structure - galaxies: star formation -
galaxies: active - galaxies: nuclei - galaxies: fundamental parameters
Abstract:
The mechanisms that bring galaxies to strongly reduce their star
formation activity (star-formation quenching) remain poorly
understood. To better study galaxy evolution, we propose a
classification based on maps of ionised hydrogen distribution traced
by the kiloparsec-resolved, equivalent width of Hα maps, and the
nuclear activity of the galaxies using information from the
Baldwin-Philips-Terlevich diagnostic diagrams. Using these tools, we
group a sample of 238 galaxies from the Calar Alto Legacy Integral
Field spectroscopy Area survey in six quenching stages (QSs): (i)
objects dominated by recent star formation; (ii) systems that present
a quiescent-nuclear-ring structure in their centre; (iii) galaxies
that are centrally quiescent; (iv) galaxies with no clear pattern in
their ionisation gas distribution (mixed); (v) systems that posses
only a few star-forming regions (nearly retired), or (vi) galaxies
that are completely quiescent (fully retired). Regarding their nuclear
activity, we further divide the galaxies into two groups: active
systems that host a weak or strong active galactic nucleus (AGN) at
their centre, and non-active objects. Galaxies grouped into
quenching-stage classes occupy specific locations on the
star-formation-rate versus stellar mass diagram. The 'blue cloud' is
populated by the star-forming and the quiescent-nuclear-ring galaxies,
the 'green valley' is populated by centrally quiescent and mixed
systems, and the 'red sequence' by the nearly- and fully retired
objects. Generally, galaxies that host a weak or strong AGN show
properties comparable to those of their non-active counterparts at the
same QSs, except for the AGN-hosting star-forming systems. The degree
of star-formation quenching increases along the present emission-line
pattern sequence from star-forming to fully retired. The proposed
emission-line classes reinforce the 'inside-out' quenching scenario,
which foresees that the suppression of star formation begins from the
central regions of the galaxies.
Description:
For this work, we adopt the sample of 238 CALIFA galaxies originally
explored in Kalinova et al. (2017, Cat. J/MNRAS/469/2539).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tableb1.dat 70 238 Properties of the 238 (E1-Sdm) CALIFA galaxies
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See also:
J/MNRAS/469/2539 : New classification of CALIFA galaxies (Kalinova+, 2017)
Byte-by-byte Description of file: tableb1.dat
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Bytes Format Units Label Explanations
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1- 13 A13 --- Galaxy Galaxy identifier (NED)
17- 21 F5.1 Mpc D Galactocentric galaxy distance (NED)
24- 27 F4.1 arcsec Re Effective radius of the galaxy, measured from
SDSS images via growth curve analysis using
elliptical apertures
(Sanchez et al., in prep.)
29- 34 F6.3 [Msun] logM* ?=- Stellar mass, adopting Chabrier IMF
36- 41 F6.3 [Msun/yr] logSFR ?=- SFR of the galaxies
43- 48 F6.3 Msun/yr dSFR ?=- logarithmic SFR distance, measured from
the SFMS
50- 52 A3 --- Type Hubble type based on by-eye morphological
classification from Walcher et al.
(2014A&A...569A...1W 2014A&A...569A...1W)
55- 56 A2 --- Bar Bar class based on by-eye morphological
classification from Walcher et al.
(2014A&A...569A...1W 2014A&A...569A...1W) (1)
59- 61 A3 --- QS Quenching stages (QS) (2)
63 I1 --- f_QS Reliability of the QS classification (3)
65- 68 A4 --- NA Nuclear activity groups for our sample (4)
70 A1 --- f_NA Reliability of the NA classification (5)
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Note (1): Bar class as follows:
A = non-barred galaxy
B = barred galaxy and
AB = unsure bar in the galaxy
Note (2): Quenching stages as follows:
SF = Star-forming
QnR = quiescent-nuclear-ring
cQ = centrally quiescent
MX = mixed
nR = nearly retired
fR = fully retired
Note (3): Reliability of the QS classification as follows:
1 = sure class
2 = unsure class due to complex structure of the galaxy
3 = unsure class due to poor data
Note (4): Nuclear activity groups as follows:
nonA = non-active galaxy
wAGN = weak AGN
sAGN = strong AGN
Note (5): Reliability of the NA classification as follows:
S = sure class based on the information of the three BPT diagrams
U = unsure class based on the information of two from the three BPT diagrams
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 02-Jun-2021