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J/A+A/615/A94       ALMA massive protocluster gas clumps maps   (Fontani+, 2018)

Fragmentation properties of massive protocluster gas clumps: an ALMA study. Fontani F., Commercon B., Giannetti A., Beltran M.T., Sanchez-Monge A., Testi L., Brand J., Tan J.C. <Astron. Astrophys. 615, A94 (2018)> =2018A&A...615A..94F (SIMBAD/NED BibCode)
ADC_Keywords: Molecular clouds ; Infrared sources ; Radio lines Keywords: ISM: clouds - stars: formation Abstract: Fragmentation of massive dense molecular clouds is the starting point in the formation of rich clusters and massive stars. Theory and numerical simulations indicate that the population of the fragments (number, mass, diameter, separation) resulting from the gravitational collapse of such clumps is probably regulated by the balance between the magnetic field and the other competitors of self-gravity, in particular turbulence and protostellar feedback. We have observed 11 massive, dense and young star-forming clumps with the Atacama Large Millimeter Array (ALMA) in the thermal dust continuum emission at 1mm with an angular resolution of 0.25 arcseconds with the aim of determining their population of fragments. Description: Observations with the ALMA array at a frequency of ∼278GHz were performed during cycles 2 and 3 in configuration C36-6 with baselines of up to 1091m, providing an angular resolution of 0.25" and a maximum recoverable scale of 3.5". The total integration time on each source was ∼18-20min. Bandpass and phases were calibrated by observing J1427-4206 and J1617-5848, respectively.The absolute flux scale was set through observations of Titan and Ceres. Continuum was extracted by averaging in frequency the line-free channels. The total bandwidth used is ∼1.7GHz. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file list.dat 131 9 List of fits images fits/* 0 9 Individual fits images
Byte-by-byte Description of file: list.dat
Bytes Format Units Label Explanations
1- 9 F9.5 deg RAdeg Right Ascension of center (J2000) 10- 18 F9.5 deg DEdeg Declination of center (J2000) 20- 23 I4 --- Nx Number of pixels along X-axis 25- 28 I4 --- Ny Number of pixels along Y-axis 30- 55 A26 --- Obs.date Observation date (YYYY-MM-DDThh:mm:ss.sssssss) 57- 63 F7.3 GHz Freq ? Observed frequency 65- 68 I4 Kibyte size Size of FITS file 70-112 A43 --- FileName Name of FITS file, in subdirectory fits 114-131 A18 --- Name Clump name
Acknowledgements: Francesco Fontani, fontani(at)arcetri.astro.it
(End) Francesco Fontani [INAF-OAA, Italy], Patricia Vannier [CDS] 10-Jul-2018
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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