J/A+A/569/A11 G35.20-0.74N continuum and line data cubes (Sanchez-Monge+, 2014)
A necklace of dense cores in the high-mass star forming region G35.20-0.74N:
ALMA observations.
Sanchez-Monge A., Beltran M.T., Cesaroni R., Etoka S., Galli D.,
Kumar M.S.N., Moscadelli L., Stanke T., van der Tak F.F.S., Vig S.,
Walmsley C.M., Wang K.-S., Zinnecker H., Elia D., Molinari S., Schisano E
<Astron. Astrophys. 569, A11 (2014)>
=2014A&A...569A..11S 2014A&A...569A..11S
ADC_Keywords: YSOs ; Photometry, millimetric/submm
Keywords: stars: formation - stars: massive -
ISM: individual objects: G35.20-0.74N - ISM: molecules -
ISM: jets and outflows
Abstract:
The formation process of high-mass stars (with masses >8M☉) is
still poorly understood, and represents a challenge from both the
theoretical and observational points of view. The advent of the
Atacama Large Millimeter Array (ALMA) is expected to provide
observational evidence to better constrain the theoretical scenarios.
The present study aims at characterizing the high-mass star forming
region G35.20-0.74N, which is found associated with at least one
massive outflow and contains multiple dense cores, one of them
recently found associated with a Keplerian rotating disk.
We used the radio-interferometer ALMA to observe the G35.20-0.74N
region in the submillimeter continuum and line emission at 350GHz. The
observed frequency range covers tracers of dense gas (e.g.,
H13CO+, C17O), molecular outflows (e.g., SiO), and hot cores
(e.g., CH3CN, CH3OH). These observations were complemented with
infrared and centimeter data.
Description:
Interferometric observations carried out with the Atacama Large
Millimeter Array (ALMA) towards the high-mass star forming region
G35.20-0.74N. The different FITS files include the continuum emission
at 870 microns (343GHz), and data cubes of the lines studied in the
paper (e.g., CH3CN, CH3OH, H13CO+, SiO, C34S, ...)
Objects:
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RA (2000) DE Designation(s)
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18 58 13.03 +01 40 36.0 G35.20-0.74N = NAME G35.2-0.74N
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
maps.dat 151 18 List of FIT files
fits/* . 18 Individual FITS files
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Byte-by-byte Description of file: maps.dat
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Bytes Format Units Label Explanations
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1- 9 F9.5 deg RAdeg Right Ascension of center (J2000)
10- 18 F9.5 deg DEdeg Declination of center (J2000)
20- 23 F4.2 arcsec/pix Scale [0.08] Scale of the image
25- 27 I3 --- Nx [512] Number of pixels along X-axis
28 A1 --- --- [x]
29- 31 I3 --- Ny [512] Number of pixels along Y-axis
32 A1 --- --- [x]
33- 36 I4 --- Nz [30/1000]? Number of slices for datacubes
38- 43 F6.1 km/s RVmin [-300/0]? Lower value of radial velocity
interval for data cubes
45- 49 F5.1 km/s RVmax [58/400]? Upper value of radial velocity
interval for data cubes
51- 53 F3.1 km/s dRV [0.6/2]? Velocity resolution
55- 61 F7.3 GHz Freq [335/351]? Frequency of line observed
63- 69 F7.2 Mibyte size [1/1001] Size of FITS file
71-103 A33 --- FileName Name of FITS file in subdirectory fits
104-151 A48 --- Title Title of the file
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Acknowledgements:
Alvaro Sanchez-Monge, sanchez(at)ph1.uni-koeln.de,
University of Cologne, Germany
(End) A. Sanchez-Monge [Cologne Univ., Germany], P. Vannier [CDS] 09-Sep-2014