J/A+A/590/A131 Giant molecular filaments in the Milky Way (Abreu-Vicente+, 2016)
Giant molecular filaments in the Milky Way.
II. The fourth Galactic quadrant.
Abreu-Vicente J., Ragan S., Kainulainen J., Henning T., Beuther H.,
Johnston K.
<Astron. Astrophys. 590, A131 (2016)>
=2016A&A...590A.131A 2016A&A...590A.131A (SIMBAD/NED BibCode)
ADC_Keywords: Milky Way ; Masers ; Molecular clouds ; H II regions ; YSOs
Keywords: ISM: general - ISM: clouds - ISM: structure
Abstract:
Filamentary structures are common morphological features of the cold,
molecular interstellar medium (ISM). Recent studies have discovered
massive, hundred-parsec-scale filaments that may be connected to the
large-scale, Galactic spiral arm structure. Addressing the nature of
these giant molecular filaments (GMFs) requires a census of their
occurrence and properties.
We perform a systematic search of GMFs in the fourth Galactic quadrant
and determine their basic physical properties.
We perform a systematic search of GMFs in the fourth Galactic quadrant
and determine their basic physical properties. Methods. We identify
GMFs based on their dust extinction signatures in the near- and
mid-infrared and the velocity structure probed by 13CO line
emission. We use the 13CO line emission and ATLASGAL dust emission
data to estimate the total and dense gas masses of the GMFs. We
combine our sample with an earlier sample from literature and study
the Galactic environment of the GMFs.
Description:
We have used the 2MASS, GLIMPSE, and ThruMMS surveys to extend the GMF
catalog initiated in Ragan et al. (2014A&A...568A..73R 2014A&A...568A..73R) to the fourth
Galactic quadrant. We inspected visually the NIR/MIR images to look
for filamentary extinction features of at least one degree in angular
length. We then used spectral 13CO information from the ThruMMS
survey to confirm that those features are continuous in velocity
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tablea2.dat 79 601 Dense gas tracers and star-forming signs
associated to our GMFs
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See also:
J/MNRAS/416/1764 : H2O Southern Galactic Plane Survey (HOPS) (Walsh+, 2011)
J/MNRAS/426/1972 : H2O Southern Galactic Plane Survey HOPS II (Purcell+ 2012)
J/ApJS/197/25 : MALT90 pilot survey (Foster+, 2011)
J/ApJS/208/11 : Red MSX Source Survey: massive protostars (Lumsden+, 2013)
J/ApJS/212/1 : The WISE catalog of Galactic HII regions (Anderson+, 2014)
J/MNRAS/431/1752 : ATLASGAL 6.7GHz methanol masers (Urquhart+, 2013)
J/MNRAS/443/1555 : ATLASGAL massive star forming clumps sample (Urquhart+ 2014)
J/A+A/570/A65 : ATLASGAL massive clumps CO depletion (Giannetti+, 2014)
Byte-by-byte Description of file: tablea2.dat
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Bytes Format Units Label Explanations
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1- 6 F6.2 deg GLON Galactic longitude
8- 12 F5.2 deg GLAT Galactic latitude
14- 18 F5.1 km/s vLSR Velocity of the source relative to the local
standard of rest
20- 22 A3 --- --- [GMF]
23- 32 A10 --- GMF Filament to which the source is associated
34- 68 A35 --- Object/line If object, kind of source. If line, tracer on
which the source is identified (1)
70- 77 A8 --- Survey Survey to which the data of the source
belongs to
79 I1 --- r_Survey Reference of the survey (2)
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Note (1): For "Several lines", see table 1 in Jackson et al.
(2013PASA...30...57J 2013PASA...30...57J).
Note (2): References as follows:
1 = Gianneti et al. (2014, Cat. J/A+A/570/A65), ATLASGAL
2 = Purcell et al. (2012, Cat. J/MNRAS/426/1972), HOPS
3 = Anderson et al. (2014, Cat. J/ApJS/212/1), WISE
4 = Lumsden et al. (2013, Cat. J/ApJS/208/11), RMS
5 = Foster et al. (2011, Cat. J/ApJS/197/25; 2013PASA...30....38F), MALT90
6 = Urquhart et al. (2013, Cat. J/MNRAS/431/1752), ATLASGAL
7 = Urquhart et al. (2014, Cat. J/MNRAS/443/1555), ATLASGAL
8 = Walsh et al. (2011, Cat. J/MNRAS/416/1764), HOPS
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Acknowledgements:
Jorge Abreu-Vicente, abreu(at)mpia.de
References:
Ragan et al., Paper I 2014A&A...568A..73R 2014A&A...568A..73R
(End) Patricia Vannier [CDS] 01-Apr-2016