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J/ApJS/232/3     Spectral line surveys of 30 regions     (Widicus Weaver+, 2017)

Deep, broadband spectral line surveys of molecule-rich interstellar clouds. Widicus Weaver S.L., Laas J.C., Zou L., Kroll J.A., Rad M.L., Hays B.M., Sanders J.L., Lis D.C., Cross T.N., Wehres N., McGuire B.A., Sumner M.C. <Astrophys. J. Suppl. Ser., 232, 3-3 (2017)> =2017ApJS..232....3W (SIMBAD/NED BibCode)
ADC_Keywords: H II regions ; Molecular clouds ; Interstellar medium ; Spectra, millimetric/submm ; Surveys Keywords: astrochemistry; ISM: abundances; ISM: clouds; ISM: molecules Abstract: Spectral line surveys are an indispensable tool for exploring the physical and chemical evolution of astrophysical environments due to the vast amount of data that can be obtained in a relatively short amount of time. We present deep, broadband spectral line surveys of 30 interstellar clouds using two broadband λ=1.3mm receivers at the Caltech Submillimeter Observatory. This information can be used to probe the influence of physical environment on molecular complexity. We observed a wide variety of sources to examine the relative abundances of organic molecules as they relate to the physical properties of the source (i.e., temperature, density, dynamics, etc.). The spectra are highly sensitive, with noise levels ≤25mK at a velocity resolution of ∼0.35km/s. In the initial analysis presented here, column densities and rotational temperatures have been determined for the molecular species that contribute significantly to the spectral line density in this wavelength regime. We present these results and discuss their implications for complex molecule formation in the interstellar medium. Description: The observations were performed in the 1.3mm band (220-267GHz) with the 10.4m Leighton Telescope of the Caltech Submillimeter Observatory (CSO) between 2007 September and 2013 June. The nominal source positions and values assumed for vlsr are listed in Table 1. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 102 30 The 30 star-forming region positions, and velocities used in the observations, and source physical parameters table3a.dat 104 991 Detected molecules in 30 sources, their LTE parameters, and associated 1σ uncertainties table3b.dat 104 991 Detected molecules in 30 sources, their LTE parameters, and associated 1σ uncertainties with non-LTE parameters as blanks figure1.dat 42 1714794 Baseline-subtracted, deconvolved spectra for the 30 star-forming regions refs.dat 70 43 References
See also: J/ApJS/69/99 : NGC 6334 centers of star formation JHK photom. (Straw+ 1989) J/A+AS/124/205 : W3 star-forming region 345 GHz survey (Helmich+ 1997) J/A+AS/133/29 : Molecular line survey towards UC HII (Hatchell+ 1998) J/ApJS/117/427 : Sgr B2 spectral survey (Nummelin+, 1998) J/A+A/357/1020 : JHK photometry in NGC 6334 IV (Persi+, 2000) J/A+A/426/97 : SIMBA survey. 1.2-mm/IRAS sources (Faundez+, 2004) J/ApJS/156/127 : 350µm molecular line survey of Orion KL (Comito+, 2005) J/A+A/455/971 : Organic molecules in Galactic center (Requena-Torres+, 2006) J/A+A/482/179 : Interferometric study of SgrB2(N) (Belloche+, 2008) J/AJ/136/2391 : GLIMPSE Extended Green Objects catalog (Cyganowski+, 2008) J/AJ/136/2083 : Clumps in NGC 6334 from 450/850um obs. (Matthews+, 2008) J/A+A/486/191 : Distances towards 6.7GHz methanol masers (Pandian+, 2008) J/ApJ/707/1 : Water and Methanol masers in NGC 6334I(N) (Brogan+, 2009) J/MNRAS/409/29 : Methanol line formation in outflow sources (Flower+, 2010) J/ApJ/714/1120 : Rotational spectrum and DCOOCH3 in Orion (Margules+, 2010) J/ApJ/720/1055 : VBLA observations of W51 Main/South (Sato+, 2010) J/A+A/532/A32 : HCOOCH3 map of Orion-KL (Favre+, 2011) J/ApJS/202/1 : 1mm spectral line survey toward GLIMPSE EGOs (He+, 2012) J/A+A/559/A47 : Sgr B2(N) & Sgr B2(M) IRAM 30m line survey (Belloche+, 2013) J/A+A/558/A94 : L1157 blue lobe SiO, H2CO, and CH3OH maps (Gomez-Ruiz+, 2013) J/ApJ/766/114 : Water & methanol masers in G75.78+0.34 (Sanchez-Monge+, 2013) J/ApJS/215/25 : Methyl formate (HCOOCH3) observations (Favre+, 2014) J/A+A/563/A97 : IRAM 30m reduced spectra of 59 sources (Gerner+, 2014) J/AJ/149/162 : 67-93.6GHz spectral line survey of Orion-KL (Frayer+, 2015) J/A+A/582/A64 : W51/e2 and G34.3+0.2 IRAM spectra (Lykke+, 2015) J/MNRAS/453/645 : Massive molecular outflows distance-limited sample (Maud+, 2015) J/A+A/599/A121 : Glycolaldehyde in Perseus young solar analogs (De Simone+, 2017) http://www.astro.uni-koeln.de/cdms/ : The Cologne Database for Molecular Spectroscopy Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 16 A16 --- Name Source identifier (as in table 3) 18 A1 --- f_Name [a] a: this source has not been well-characterized 20- 36 A17 --- Type Source type 38- 39 I2 h RAh Hour of right ascension (J2000) 41- 42 I2 min RAm Minute of right ascension (J2000) 44- 48 F5.2 s RAs Second of right ascension (J2000) 50 A1 --- DE- Sign of declination (J2000) 51- 52 I2 deg DEd Degree of declination (J2000) 54- 55 I2 arcmin DEm Arcminute of declination (J2000) 57- 60 F4.1 arcsec DEs Arcsecond of declination (J2000) 62- 67 F6.2 km/s Vlsr [-57/114] LSR velocity 69- 73 I5 pc Dist [230/13600]? Distance 75 A1 --- l_Lum [~><] Limit or uncertainty flag on Lum 76- 81 A6 Lsun Lum Luminosity 83 A1 --- l_Mass [~><] Limit or uncertainty flag on Mass 84- 91 F8.2 Msun Mass [0.1/14000]? Mass (gas and dust) 93-102 A10 --- Ref Reference(s) (see refs.dat file)
Byte-by-byte Description of file: table3[ab].dat
Bytes Format Units Label Explanations
1- 16 A16 --- Name Source identifier 18- 26 A9 --- Mol Molecule identifier 28- 32 F5.2 [cm-2] logNT [11/18.3]? log of the column density 34- 39 F6.2 [cm-2] e_logNT [0/510]? The 1σ uncertainty in logNT 41- 49 E9.3 cm-2 NT ? Column density (1) 51- 59 E9.3 cm-2 e_NT ? The 1σ uncertainty in NT (1) 61- 67 F7.2 K Trot [2.7/1141]? Rotational temperature (1) 69- 77 F9.2 K e_Trot [0.04/183360]? Trot 1σ uncertainty (1) 79- 83 F5.2 km/s FWHM [0.5/40] Full-Width at Half-Maximum of line 85- 90 F6.2 km/s e_FWHM [0.01/461]? The 1σ uncertainty in FWHM (1) 92- 97 F6.2 km/s delV [-11.4/15] Velocity shift (2) 99-104 F6.2 km/s e_delV [0.01/188]? The 1σ uncertainty in delV (1)
Note (1): Only molecules with more than three unblended lines at different upper state energies can be fit to a reliable NT and Trot. In table3a.dat, other small molecules are fit with arbitrary NT and Trot, and their associated uncertainties may be non-physically large. In table3b.dat, other detected small molecules are reported with non-LTE parameters as blanks. Note (2): With respect to the Local Standard of Rest velocity.
Byte-by-byte Description of file: figure1.dat
Bytes Format Units Label Explanations
1- 16 A16 --- Name Source identifier (as in table 3) 19- 30 E12.6 MHz Freq [212808/268574] Frequency 32- 42 E11.4 K Tb [-9.6/100.7] Brightness temperature
Byte-by-byte Description of file: refs.dat
Bytes Format Units Label Explanations
1- 2 I2 --- Ref Reference code 4- 22 A19 --- BibCode Bibcode of the reference 24- 49 A26 --- Auth First author's name(s) 51- 70 A20 --- Comm Comment
History: From electronic version of the journal
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 29-Sep-2017
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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