J/A+A/411/381 CO observation of isolated galaxies (Sauty+, 2003)
12CO(1-0) observation of isolated late-type galaxies.
Sauty S., Casoli F., Boselli A., Gerin M., Lequeux J., Braine J.,
Gavazzi G., Dickey J., Kazes I., Fouque P.
<Astron. Astrophys. 411, 381 (2003)>
=2003A&A...411..381S 2003A&A...411..381S
ADC_Keywords: Galaxies, radio ; Radial velocities ; H I data ; CO ; Radio lines
Keywords: galaxies: spiral -ISM - intergalactic medium - star formation -
radio lines: galaxies
Abstract:
We present 12CO(J=1-0) line observations of 99 galaxies obtained
with the SEST 15m, the Kitt Peak 12m and the IRAM 30m telescopes. The
target galaxies were selected from the catalogue of isolated galaxies
of Karachentseva (1973, Cat. VII/82). These data are thus
representative of the CO properties of isolated late-type galaxies.
All objects were observed in their central position, those with large
angular sizes were mapped. These new measurements are used to estimate
the molecular gas mass of the target galaxies. The molecular gas is on
average ∼18% of the atomic gas mass.
Description:
The observations were carried out during 4 observing runs at the SEST
15m (November 1993-November 1996), one run at the NRAO Kitt Peak2 12m
(December 1994) done in remote from the Observatoire de Paris and one
run at the IRAM 30m telescope (June 1996). At 115GHz [12CO(1-0)],
the telescope half-power beam widths (HPBW) are 43-arcsec, 55-arcsec
and 22-arcsec, respectively.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 100 99 Parameters of the target galaxies
table2.dat 58 177 Results of the observations
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See also:
VII/82 : Isolated Galaxies (Karachentseva+ 1973)
J/A+A/411/391 : Revised positions for CIG galaxies (Leon+, 2003)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- KIG Name from Karachentseva 1973 (Cat. VII/82)
6- 17 A12 --- Name Alternative name
19- 20 I2 h RAh Right ascension (J2000)
22- 23 I2 min RAm Right ascension (J2000)
25- 28 F4.1 s RAs Right ascension (J2000)
30 A1 --- DE- Declination sign (J2000)
31- 32 I2 deg DEd Declination (J2000)
34- 35 I2 arcmin DEm Declination (J2000)
37- 38 I2 arcsec DEs Declination (J2000)
40- 48 A9 --- MType Morphological type
50 I1 --- Class [0/2] Isolation class (1)
52- 56 I5 km/s HRV Heliocentric velocity
58- 62 F5.2 mag BTmag Total B magnitude
64- 66 F3.1 arcmin adiam Major diameter
68- 70 F3.1 arcmin bdiam Minor diameter
72- 76 F5.2 [solMass] logMHI ? logarithm of the HI mass
78- 80 I3 km/s WHI ? HI width
82- 85 A4 --- Tel Used telescope
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Note (1): Isolation class:
0: isolated,
1: marginally isolated,
2: group or cluster member
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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- 4 I4 --- KIG Name from Karachentseva 1973, Cat. VII/82
6- 8 I3 arcsec RAoff Right ascension offset
10- 12 I3 arcsec DEoff Declination offset
14- 17 F4.1 mK rms rms
19 A1 --- l_I(CO) Limit flag on I(CO)
20- 24 F5.2 K.km/s I(CO) 12CO(1-0) line intensity or upper limit
26- 29 F4.2 K.km/s e_I(CO) ? 12CO(1-0) line intensity error
31- 35 I5 km/s HRV ? 12CO(1-0) heliocentric velocity
37- 39 I3 km/s WCO ? CO line width
41 A1 --- Note [am] m: marginally detected,
a: distance uncertain
43- 46 F4.2 --- FF ? Beam Filling factor
48 A1 --- l_logMH2(co) Limit flag on logMH2(co)
49- 52 F4.2 [solMass] logMH2(co) ? logarithm of the mass of molecular H2
determined using a constant conversion
factor
54 A1 --- l_logMH2 Limit flag on logMH2
55- 58 F4.2 [solMass] logMH2 ? logarithm of the mass of molecular H2
determined using a variable conversion
factor
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Acknowledgements: Alessandro Boselli
(End) Patricia Bauer [CDS] 15-Sep-2003