J/MNRAS/426/2601 CO lines in luminous IR galaxies (Papadopoulos+, 2012)
The molecular gas in luminous infrared galaxies.
I. CO lines, extreme physical conditions and their drivers.
Papadopoulos P.P., Van Der Werf P.P., Xilouris E.M., Isaak K.G., Gao Y.,
Muhle S.
<Mon. Not. R. Astron. Soc., 426, 2601-2629 (2012)>
=2012MNRAS.426.2601P 2012MNRAS.426.2601P
ADC_Keywords: Galaxies, IR ; Radio lines
Keywords: cosmic rays - ISM: molecules - galaxies: ISM - galaxies: starburst -
infrared: galaxies - radio lines: ISM
Abstract:
We report results from a large molecular line survey of luminous
infrared galaxies (LIRGs; LIR≳1011L☉) in the local Universe
(z≤0.1), conducted during the last decade with the James Clerk
Maxwell Telescope and the IRAM 30-m telescope. This work presents the
CO and 13CO line data for 36 galaxies, further augmented by multi-J
total CO line luminosities available for other infrared (IR) bright
galaxies from the literature. This yields a combined sample of N=70
galaxies with the star formation (SF) powered fraction of their IR
luminosities spanning L(*)IR∼1010-2x1012^)L☉ and a wide
range of morphologies.
Description:
We used the A3 receiver (211-276GHz, DSB operation) on the 15-m JCMT
on Mauna Kea in Hawaii (USA) to observe the CO J=2-1 (230.538GHz) and
13CO J=2-1 (220.398GHz) lines, and its B3 (315-370GHz) and W/C
(430-510GHz) receivers operating single sideband (SSB) for CO J=3-2
(345.796GHz) and J=4-3 (461.041GHz) line observations in our sample.
The observations were conducted during several periods from 1999 up to
2010.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 121 70 Observational parameters of the combined LIRG
sample
table4.dat 125 72 12CO J=1-0, 2-1 and 3-2 data for the combined
LIRG sample
table7.dat 81 70 12CO line ratios and SF-powered IR luminosities
refs.dat 68 68 References
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 11 A11 --- Name Galaxy name (HHMMm+DDMM for IRAS)
12 A1 --- n_Name [*g] Note on Name (1)
14- 33 A20 --- OName Most common alternative name(s)
35- 36 I2 h RAh Right ascension (J2000) (2)
38- 39 I2 min RAm Right ascension (J2000)
41- 45 F5.2 s RAs Right ascension (J2000)
47 A1 --- DE- Declination sign (J2000)
48- 49 I2 deg DEd Declination (J2000)
51- 52 I2 arcmin DEm Declination (J2000)
54- 57 F4.1 arcsec DEs Declination (J2000)
59- 64 F6.4 --- z Redshift (3)
66- 70 F5.1 Mpc DL Luminosity distance (from z)
72- 76 F5.2 arcsec oRA Offset between expected CO source centre Rcm
and observed position in θRA (4)
78- 81 F4.1 arcsec oDE Offset between expected CO source centre Rcm
and observed position in θDE (4)
83- 84 A2 --- l_Size [~< ] Limit flag on Size
85- 89 F5.2 arcsec Size CO region angular size θs from
interferometric maps (5)
92- 95 F4.1 arcsec Sep ? Separation, if n_Size indicates 'dbl' (5)
98-106 A9 --- n_Size Note on Size (5)
109-110 I2 --- Ref1 Reference, in refs.dat file
111-112 A2 --- n_Ref1 [pm ] position (p) and/or morphology/size (m)
115-116 I2 --- Ref2 ? Reference, in refs.dat file
117 A1 --- n_Ref2 [pm] position (p) and/or morphology/size (m)
119-120 I2 --- Ref3 ? Reference, in refs.dat file
121 A1 --- n_Ref3 [pm] position (p) and/or morphology/size (m)
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Note (1): Notes as follows:
* = marks sources for which CO line fluxes were obtained from an extensive
literature search and line flux rectification process
g = Double nuclei in near-IR (Scoville et al., 2000AJ....119..991S 2000AJ....119..991S),
but only one is CO bright (Evans et al., 2002ApJ...580..749E 2002ApJ...580..749E).
Note (2): Source coordinates (Rbeam) used for CO observations.
Note (3): The redshift used for receiver tuning (or the zco reported in the
literature for LIRGs not in the original sample).
Note (4): Offsets between expected CO source centre Rcm (assumed coincident with
peak cm continuum) and observed position: ΔR=Rcm-Rbeam (ΔR=0 when
available CO or submm images defined the CO source centre.
Thus Rcm marks the true CO source centre whenever ΔR{diff}0.
Note (5): CO region angular size θs=(θmin,θmaj)0.5.
If these were not available, then cm, near-IR or submm continuum images were
used to set upper limits on θs. The qualifiers for the images used are
(co), (cm), (ir), (sm) for CO, cm, IR and submm images, (x) = complex source
morphology (θs then denotes the overall source size), (dbl) = double
CO-bright nuclei. In the latter case, θs refers to the largest one,
and the second number denotes their separation.
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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 A11 --- Name Galaxy name
12- 23 A12 --- m_Name Indication on nucleus part
25 A1 --- n_Name [*] CO flux from literature (1)
27- 32 F6.1 Jy.km/s S10 ? CO J=1-0 velocity-integrated line flux density
34- 38 F5.1 Jy.km/s e_S10 ? rms uncertainty on S10
40 A1 --- f_S10 [cg] flag on S10 (2)
41- 52 A12 --- n_S10 Applied correction on S10 (3)
53- 57 I5 Jy.km/s S21 ? CO J=2-1 velocity-integrated line flux density
59- 62 I4 Jy.km/s e_S21 ? rms uncertainty on S21
63 A1 --- f_S21 [cdi] Flag on S21 (2)
64- 74 A11 --- n_S21 Applied correction on S21 (3)
75- 76 A2 --- l_S32 [~< ] Limit flag on S32
77- 81 I5 Jy.km/s S32 ? CO J=3-2 velocity-integrated line flux density
83- 86 I4 Jy.km/s e_S32 ? rms uncertainty on S32
87 A1 --- f_S32 [hckpel] Flag on S32 (2)
88- 99 A12 --- n_S32 Applied correction on S32 (3)
104-124 A21 --- Ref References, in refs.dat file
125 A1 --- f_Ref [f] Flag on Ref (2)
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Note (1): Notes as follows:
* = Sources for which CO line fluxes were obtained from an extensive
literature search and line flux rectification process
Note (2): Notes as follows:
c = J=1-0 and 3-2 for the central 40", J=2-1 for the inner 20"
(from Zhu et al. 2009ApJ...706..941Z 2009ApJ...706..941Z)
d = From CO J=1-0 and the <(2-1)/(1-0)> ratio over the inner 22"
(Casoli et al. 1992A&A...264...55C 1992A&A...264...55C)
e = Probably an underestimate (source significantly larger than the JCMT beam)
f = Fluxes for the inner 20" of the galaxy
g = Shift factor Ksh=1.25 applied for the Sanders et al. (1991ApJ...370..158S 1991ApJ...370..158S)
value
h = 3σ upper limit
i = Flux from an Submillimeter Array image most likely collecting all of it
given its single dish CO 3-2 flux is also recovered by the interferometer
j = Uncertain value, large correction of a single CO 2-1 observation of a
widely separated pair, pointing ∼6" away from south-west (SW) nucleus
k = A 3x3 grid map at 7" grid size was made to obtain total line flux
l = A large correction factor makes this value uncertain
Note (3): Value and type of any applied corrections on velocity.
G: the pointing error bias, Ksh = Ksh(Δθ)
(with Δθ=[ΔθRA)2+(ΔθDE)2]1/2):
position offset correction, Kc: beam-source geometric coupling correction
for sources with known CO or submm dust emission source size θs.
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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- 11 A11 --- Name Galaxy name (HHMMm+DDMM for IRAS)
12 A1 --- n_Name [*] CO flux from literature (1)
14- 17 F4.2 --- r21 ? r21 CO line ratio (2)
19- 22 F4.2 --- e_r21 ? rms uncertainty on r21
24- 27 F4.2 --- r32 ? r32 CO line ratio (2)
29- 32 F4.2 --- e_r32 ? rms uncertainty on r32
33 A1 --- u_r32 [h] uncertain value (3)
34- 35 A2 --- l_r43 [≲ ] Limit flag on r43
36- 39 F4.2 --- r43 ? r43 CO line ratio (2)
41- 44 F4.2 --- e_r43 ? rms uncertainty on r43
45 A1 --- n_r43 [df] uncertain line (3)
46- 47 A2 --- l_r65 [≲ ] Limit flag on r43
48- 51 F4.2 --- r65 ? r65 CO line ratio (2)
53- 57 F5.3 --- e_r65 ? rms uncertainty on r65
58 A1 --- n_r65 [dehg] Note on r65 (3)
60- 65 F6.3 10+9K.km/s.pc2 L'CO CO(1-0) luminosity
67- 71 F5.3 10+9K.km/s.pc2 e_L'CO Mean error on L'CO
73- 78 F6.3 10+11Lsun LIR SF-powered part of infrared luminosity
80- 81 I2 K Td ? Dust temperature (associated to LIR)
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Note (1): Notes as follows:
* = Sources for which CO line fluxes were obtained from an extensive
literature search and line flux rectification process
Note (2): CO line ratios relative to (1-0): rj+1,j=L'CO(j+1,j)/L'CO(1-0).
Note (3): Notes as follows:
d = 3σ upper limit
e = CO J = 6-5 flux from the NW nucleus where most of the CO emission is
(Evans et al. 2002ApJ...580..749E 2002ApJ...580..749E)
f = Likely higher as CO 4-3 is obtained from a partially completed map.
g = Estimated for the NE nucleus where 75 per cent of CO(1-0) emission
arises (Evans et al. 2002ApJ...580..749E 2002ApJ...580..749E)
h = Uncertain value
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Byte-by-byte Description of file: refs.dat
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Bytes Format Units Label Explanations
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1- 2 A2 --- Ref Reference code
4- 22 A19 --- BibCode BibCode
24- 46 A23 --- Aut Author's name
48- 68 A21 --- Com Comments
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History:
From electronic version of the journal
References:
Papadopoulos et al., Paper II 2012ApJ...751...10P 2012ApJ...751...10P
(End) Patricia Vannier [CDS] 25-Apr-2013