J/MNRAS/462/2878 SFR & AGN in most luminous local universe LINERs (Povic+, 2016)
Star formation and AGN activity in the most luminous LINERs in the
local universe.
Povic M., Marquez I., Netzer H., Masegosa J., Nordon R., Perez E.,
Schoenell W.
<Mon. Not. R. Astron. Soc., 462, 2878-2903 (2016)>
=2016MNRAS.462.2878P 2016MNRAS.462.2878P (SIMBAD/NED BibCode)
ADC_Keywords: Active gal. nuclei ; Star Forming Region ; Morphology ;
Infrared sources ; Spectroscopy
Keywords: galaxies: active - galaxies: nuclei - galaxies: star formation
Abstract:
This work presents the properties of 42 objects in the group of the
most luminous, highest star formation rate (SFR) low-ionization
nuclear emission-line regions (LINERs) at z=0.04-0.11. We obtained
long-slit spectroscopy of the nuclear regions for all sources, and FIR
data (Herschel and IRAS) for 13 of them. We measured emission-line
intensities, extinction, stellar populations, stellar masses, ages,
active galactic nuclei (AGN) luminosities, and SFRs. We find
considerable differences from other low-redshift LINERs, in terms of
extinction, and general similarity to star-forming galaxies. We
confirm the existence of such luminous LINERs in the local universe,
after being previously detected at z∼0.3 by Tommasin et al. The
median stellar mass of these LINERs corresponds to 6-7x1010M☉
which was found in previous work to correspond to the peak of relative
growth rate of stellar populations and therefore for the highest SFRs.
Other LINERs although showing similar AGN luminosities have lower SFR.
We find that most of these sources have LAGN∼LSF suggesting
co-evolution of black hole and stellar mass. In general, the fraction
of local LINERs on the main sequence of star-forming galaxies is
related to their AGN luminosity.
Description:
The sources were initially selected from the SDSS/DR4 (Kauffmann et
al., 2003MNRAS.341...33K 2003MNRAS.341...33K; Brinchmann et al., 2004MNRAS.351.1151B 2004MNRAS.351.1151B)
catalogue in Garching MPA-JHU based on the SDSS (http://www.sdss.org/)
DR4 data (Adelman-McCarthy et al. (2006ApJS..162...38A 2006ApJS..162...38A, Cat. II/267),
and references therein). LINERs were first selected using both
[NII]6584/Hα and [OI]6300/Hα criteria of Kewley et al.
(2006MNRAS.372..961K 2006MNRAS.372..961K). Taking into account the completeness of the
SDSS survey, only LINERs with 0.04<z<0.11 were selected (Netzer,
2009MNRAS.399.1907N 2009MNRAS.399.1907N). To eliminate LINERs ionized by pAGB stars, we
selected only those galaxies with Hα EW(Hα)>2.5Å
(Cid-Fernandes et al., 2011MNRAS.413.1687C 2011MNRAS.413.1687C).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 89 42 Summary of observations
table2.dat 49 16 Summary of FIR observations with Herschel and
IRAS
table3.dat 19 42 Dn4000 and Hδ measurements
table4.dat 56 41 The best stellar population mixture found
by STARLIGHT
table5.dat 112 42 Properties of strong emission lines
table6.dat 119 40 Properties of extinction corrected strong
emission lines
table7.dat 16 40 AGN contribution measured through L(Hα)
and STARLIGHT SFRs (obtained from young stellar
populations)
table8.dat 104 42 SFRs and AGN luminosities
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See also:
II/267 : The SDSS Photometric Catalog, Release 4 (Adelman-McCarthy+, 2006)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 3 A3 --- ID MLLINER identification
4- 5 A2 --- n_ID [*! ] Note (G1)
7- 16 F10.6 deg RAdeg Right ascension (J2000)
19- 27 F9.6 deg DEdeg Declination (J2000)
30- 34 F5.3 --- z Redshift, from SDSS public catalogues
36- 40 F5.2 mag m6500 AB continuum magnitude at 6500Å
42 A1 --- Morph Visual morphological classification (1)
44- 53 A10 "date" Date Date of observation
55- 57 F3.1 arcsec Seeing ? Average FWHM of the seeing
59- 61 I3 deg PA []? Slit position angle, orientated along
the major axis
62- 63 A2 --- n_PA [PA ] PA means that the parallactic angle
was used
65- 72 A8 s Texpb Total exposure time in blue parts in seconds
74- 81 A8 s Texpr Total exposure time in red parts in seconds
83- 85 F3.1 arcsec+2 Areanuc ? Area covered with our 'nuclear'
extraction (2)
87- 89 A3 --- IRdata [1,2 ] Availability of
Herschel (1) and IRAS (2) data
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Note (1): Classification as follows:
E = Elliptical/S0
S = spiral
P = peculiar
Note (2): just for comparison, the SDSS spectra cover an area of 7.08 arcsec2.
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 3 A3 --- ID MLLINER identification
5- 10 F6.4 Jy F70 ? FIR flux in the 70um Herschel/PACS band
12- 17 F6.4 Jy e_F70 ? FIR flux in the 70um Herschel/PACS band
19- 24 F6.4 Jy F160 ? FIR flux in the 160um Herschel/PACS band
26- 31 F6.4 Jy e_F160 ? FIR flux in the 160um Herschel/PACS band
33- 38 F6.4 Jy F60 ? IRAS FIR flux in 60um band
40 I1 --- q_F60 ? Quality flag on F60 (1)
42- 47 F6.4 Jy F100 ? IRAS FIR flux in 100um band
49 I1 --- q_F100 ? Quality flag on F100 (1)
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Note (1): Quality flag as follows:
3 = high quality
2 = moderate quality
1 = an upper limit
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 3 A3 --- ID MLLINER identification
4 A1 --- n_ID [!] Note (G1)
6- 9 F4.2 --- Dn4000 ? Strength of 4000Å break
11- 14 F4.2 --- e_Dn4000 ? rms uncertainty on Dn4000
16- 19 F4.2 --- Hd ? Balmer absorption-line index Hδ
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Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 3 A3 --- ID MLLINER identification
4 A1 --- n_ID [!] Note (G1)
6- 10 F5.2 --- adev Goodness of the fit (see the text)
12- 16 F5.2 --- S/N Measured S/N ratio (see Section 4.2)
18- 22 F5.3 mag AV ? Extinction in V band
24- 27 F4.2 10+10Msun M* Current mass in stars
29- 33 F5.2 10+10Msun M*ini Initial mass in stars
35- 39 F5.2 % stpop1 Fraction of young stars with age[yr]≤108
41- 45 F5.2 % stpop2 Fraction of intermediate stars with
108<age[yr]≤109
47- 51 F5.2 % stpop3 Fraction of old stars with age[yr]>109
53- 56 F4.2 yr logtmean Mean age
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Byte-by-byte Description of file: table5.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 3 A3 --- ID MLLINER identification
4 A1 --- n_ID [!] Note (G1)
6- 9 F4.2 --- [OII] ? Flux of [OII]3272 in Hα flux unit
11- 14 F4.2 --- e_[OII] ? rms uncertainty on [OII]
16- 19 F4.2 --- Hb ? Flux of Hβ in Hα flux unit
21- 24 F4.2 --- e_Hb ? rms uncertainty on Hb
26- 29 F4.2 --- [OIII]1 ? Flux of [OIII]4959 in Hα flux unit
31- 34 F4.2 --- e_[OIII]1 ? rms uncertainty on [OIII]1
36- 39 F4.2 --- [OIII]2 Flux of [OIII]5007 in Hα flux unit
41- 44 F4.2 --- e_[OIII]2 rms uncertainty on [OIII]2
46- 49 F4.2 --- [OI] ? Flux of [OI]6300 in Hα flux unit
51- 54 F4.2 --- e_[OI] ? rms uncertainty on [OI]
56- 59 F4.2 --- [NII]1 ? Flux of [NII]6548 in Hα flux unit
61- 64 F4.2 --- e_[NII]1 ? rms uncertainty on [NII]1
66- 69 F4.2 --- [NII]2 Flux of [NII]6584 in Hα flux unit
71- 74 F4.2 --- e_[NII]2 rms uncertainty on [NII]2
76- 79 F4.2 --- [SII]1 ? Flux of [SII]6716 in Hα flux unit
81- 84 F4.2 --- e_[SII]1 ? rms uncertainty on [SII]1
86- 89 F4.2 --- [SII]2 ? Flux of [SII]6731 in Hα flux unit
91- 94 F4.2 --- e_[SII]2 ? rms uncertainty on [SII]2
96-101 F6.2 10-19mW/m2 FHa Hα flux
103-106 F4.2 10-19mW/m2 e_FHa rms uncertainty on FHA
108-112 F5.2 0.1nm EWHa Hα equivalent width (1)
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Note (1): measured in the spectrum before the subtraction of the best model for
the underlying stellar population.
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Byte-by-byte Description of file: table6.dat
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Bytes Format Units Label Explanations
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1- 3 A3 --- ID MLLINER identification
4 A1 --- n_ID [!] Note (G1)
6- 9 F4.2 --- [OII] ? Extinction corrected flux of [OII]3272
in Hα flux unit
11- 14 F4.2 --- e_[OII] ? rms uncertainty on [OII]
16- 19 F4.2 --- [OIII]1 ? Extinction corrected flux of [OIII]4959
in Hα flux unit
21- 24 F4.2 --- e_[OIII]1 ? rms uncertainty on [OIII]1
26- 29 F4.2 --- [OIII]2 Extinction corrected flux of [OIII]5007
in Hα flux unit
31- 34 F4.2 --- e_[OIII]2 rms uncertainty on [OIII]2
36- 39 F4.2 --- [OI] ? Extinction corrected flux of [OI]6300
in Hα flux unit
41- 44 F4.2 --- e_[OI] ? rms uncertainty on [OI]
46- 49 F4.2 --- [NII]1 ? Extinction corrected flux of [NII]6548
in Hα flux unit
51- 54 F4.2 --- e_[NII]1 ? rms uncertainty on [NII]1
56- 59 F4.2 --- [NII]2 Extinction corrected flux of [NII]6584
in Hα flux unit
61- 64 F4.2 --- e_[NII]2 rms uncertainty on [NII]2
66- 69 F4.2 --- [SII]1 ? Extinction corrected flux of [SII]6716
in Hα flux unit
71- 74 F4.2 --- e_[SII]1 ? rms uncertainty on [SII]1
76- 79 F4.2 --- [SII]2 ? Extinction corrected flux of [SII]6731
in Hα flux unit
81- 84 F4.2 --- e_[SII]2 ? rms uncertainty on [SII]2
86- 92 F7.2 10-19mW/m2 FHa Hα flux
94- 99 F6.2 10-19mW/m2 e_FHa rms uncertainty on FHA
101-106 F6.2 10+33W LHa Hα luminosity
108-112 F5.2 10+33W e_LHa rms uncertainty on LHA
114-119 F6.3 mag AV Interstellar extinction parameter
in the V band
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Byte-by-byte Description of file: table7.dat
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Bytes Format Units Label Explanations
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1- 3 A3 --- ID MLLINER identification
6- 10 F5.2 10+33W L(Ha)test Hα luminosity obtained from the
STARLIGHT SFRs correspondent only to young
stellar populations
12- 16 F5.1 % AGNcont Approximation of AGN contribution to
Hα luminosity
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Byte-by-byte Description of file: table8.dat
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Bytes Format Units Label Explanations
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1- 3 A3 --- ID MLLINER identification
6- 9 F4.2 --- SFR1 SFR measured through the starlight
best-fitting model using only young
(age<108) stars
11- 15 F5.2 --- SFR2 SFR measured through the starlight
best-fitting model using young and
intermediate (age<109) stars
17- 20 F4.2 --- SFRtot Total SFR obtained from the
best-fitting model
22- 25 F4.2 --- e_SFRtot rms uncertainty on SFRtot
27- 31 F5.2 --- SFRtotsc Total SFR obtained from the best-fitting
model scaled to the entire galaxy
33- 36 F4.2 --- e_SFRtotsc rms uncertainty on SFRtotsc
38- 42 F5.2 --- SFRDn ? SFR measured using the Dn4000 index
44- 47 F4.2 --- e_SFRDn ? rms uncertainty on SFRDn4000
49- 53 F5.2 --- SFRDnsc ? SFR measured using the Dn4000 index
scaled to the entire galaxy
55- 59 F5.2 --- e_SFRDnsc ? rms uncertainty on SFRDn4000sc
61- 65 F5.2 --- SFRPACS ? SFRs measured through Herschel/PACS data
67- 70 F4.2 --- e_SFRPACS ? rms uncertainty on SFRPACS
72- 76 F5.2 --- SFRIRAS ? SFRs measured through IRAS FIR data
78- 81 F4.2 --- e_SFRIRAS ? rms uncertainty on SFRIRAS
83- 87 F5.2 [10-7W] logLAGN ? AGN luminosity, measured through Hα
and [OIII]5007 extinction corrected
emission lines
89- 92 F4.2 [10-7W] e_logLAGN ? rms uncertainty on logLAGN
94- 98 F5.2 [Msun] logMtot ? Total stellar mass, measured by MPA-JHU
team using SDSS DR7 data
100-103 F4.2 [Msun] logMBH ? Black hole mass measured for galaxies
classified as E
104 A1 --- n_logMBH [*] * for B13 that is classified as S
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Global notes:
Note (G1): Notes as follows:
* = sources observed with NOT
! = sources are possibly Sy2 galaxies and not LINERs as explained in
Section 4.3
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 14-Feb-2018