J/A+A/455/971 Organic molecules in the Galactic center (Requena-Torres+, 2006)
Organic molecules in the Galactic center.
Requena-Torres M.A., Martin-Pintado J., Rodriguez-Franco A., Martin S.,
Rodriguez-Fernandez N.J., de Vicente P.
<Astron. Astrophys. 455, 971 (2006)>
=2006A&A...455..971R 2006A&A...455..971R
ADC_Keywords: Molecular clouds ; Radio lines
Keywords: astrochemistry - ISM: clouds - ISM: molecules - radio lines: ISM -
Galactic: center
Abstract:
We carried out a systematic study of the complex organic molecules
CH3OH, C2H5OH, (CH3)2O, HCOOCH3, HCOOH, CH3COOH,
H2CO, and CS toward 40 GC molecular clouds. Using the LTE
approximation, we derived the physical properties of GC molecular
clouds and the abundances of the complex molecules.The abundances of
complex organic molecules in the GC are compared with those measured
in hot cores and hot corinos, in which these complex molecules are
also abundant.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 53 34 Molecular line parameters
table2.dat 61 35 Source positions
table7.dat 108 1000 Observed parameters
table7.tex 210 411 LaTeX version of table7
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Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 11 A11 --- Mol Molecule (1)
13- 31 A19 --- Trans Transition
32- 40 F9.2 MHz Freq ? Frequency
41 A1 --- n_Freq [*] Note on Freq (2)
43- 47 F5.2 K Eu/kappa Energy of the upper level
49- 53 F5.2 --- mu2S Dipole moment*line strength, (µx)2*S
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Note (1): For (CH3)2O, EE, AA, EA, and AE substates blended.
Only the most intense transition is given
Note (2): For CH3COOH (808-->707)E+A,
90246.25MHz for (8*8-->7*7A) and 90203.44MHz for (8*8-->7*7B)
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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- 16 A16 --- Source Source name
18- 23 F6.3 deg GLON [-1/1] Galactic longitude
25- 30 F6.3 deg GLAT Galactic latitude
32- 33 I2 h RAh Right ascension (B1950)
35- 36 I2 min RAm Right ascension (B1950)
38- 41 F4.1 s RAs Right ascension (B1950)
43 A1 --- DE- Declination sign (B1950)
44- 45 I2 deg DEd Declination (B1950)
47- 48 I2 arcmin DEm Declination (B1950)
50- 51 I2 arcsec DEs Declination (B1950)
53- 60 A8 --- Region Name of the region containing the source
61 A1 --- Note [a] a: to difference two observation sessions
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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 --- Mol Molecule
13- 30 A18 --- Trans Transition
31 A1 --- n_Trans [*] Note on transition (1)
33- 48 A16 --- Source Source name
50- 51 A2 --- l_T*A [≤] Limit flag on T*A
52- 56 F5.2 K T*A ? Antenna temperature scale
58- 60 F3.1 K e_T*A ? rms uncertainty on T*A
62- 63 A2 --- l_T*Adv [≤] Limit flag on T*Adv
64- 69 F6.2 K.km/s T*Adv ? Integrated intensity
71- 75 F5.2 K.km/s e_T*Adv ? rms uncertainty on T*Adv
77 A1 --- --- Flag for VLSR interval ([) (2)
78- 84 F7.2 km/s VLSR ? LSR velocity or lower limit of
LSR velocity interval
86- 90 F5.1 km/s VLSRu ? Upper limit of LSR velocity interval
91 A1 --- --- Flag for VLSR interval (]) (2)
93- 96 F4.2 km/s e_VLSR ? rms uncertainty on VLSR
98-102 F5.2 km/s Deltav ? Linewidth
104-108 F5.2 km/s e_Deltav ? rms uncertainty on Deltav
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Note (1): * indicates that A multi-Gaussian fit has been used, the antenna
temperature is (Trot-Tbg)(1-e-tau)
Note (2): Velocity range used to calculate the integrated intensity for the
lines with wider profiles than the complex organic molecules.
This velocity range was derived from C2H5OH emission when
detected, or from CH3OH when C2H5OH was not detected.
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Acknowledgements: Miguel Angel Requena-Torres, requena(at)damir.iem.csic.es
(End) Patricia Vannier [CDS] 22-May-2006