J/A+A/599/A121 Glycolaldehyde in Perseus young solar analogs (De Simone+, 2017)
Glycolaldehyde in Perseus young solar analogs.
De Simone M., Codella C., Testi L., Belloche A., Maury A.J., Anderl S.,
Andre P., Maret S., Podio L.
<Astron. Astrophys. 599, A121 (2017)>
=2017A&A...599A.121D 2017A&A...599A.121D (SIMBAD/NED BibCode)
ADC_Keywords: Associations, stellar ; Stars, G-type
Keywords: stars: formation - ISM: jets and outflows - ISM: molecules -
Abstract:
The earliest evolutionary stages of low-mass protostars are
characterised by the so-called hot-corino stage, when the newly born
star heats the surrounding material and enrich the gas chemically.
Studying this evolutionary phase of solar protostars may help
understand the evolution of prebiotic complex molecules in the
development of planetary systems.
In this paper we focus on the occurrence of glycolaldehyde
(HCOCH2OH) in young solar analogs by performing the first
homogeneous and unbiased study of this molecule in the Class 0
protostars of the nearby Perseus star forming region.
We obtained sub-arcsec angular resolution maps at 1.3mm and 1.4mm of
glycolaldehyde emission lines using the IRAM Plateau de Bure (PdB)
interferometer in the framework of the CALYPSO IRAM large program.
Description:
Glycolaldehyde spatial distributions towards NGC1333-IRAS2A1,
NGC1333-IRAS4A, NGC1333-IRAS4B1, and NGC1333 SVS13-A.
The glycolaldehyde distribution refers to (1) the sum of the
76,2-65,1 and 76,1-65,2 emission with (220.2GHz, Eu=37K), and
(2) the 222,21-211,20 emission (232.3GHz, Eu=135K).
Objects:
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RA (2000) DE Designation(s)
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03 28 55.55 +31 14 36.7 IRAS 2A = [JCC87] IRAS 2A
03 28 57.21 +31 14 19.1 IRAS 2B = [JCC87] IRAS 2B
03 29 10.49 +31 13 30.8 IRAS 4A = [JCC87] IRAS 4A
03 29 03.0 +31 15 53 SVS 13A = [SVS76] NGC 1333 13A
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
list.dat 107 8 List of fits files
fits/* . 8 Individual fits files
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Byte-by-byte Description of file: list.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 I4 --- Nx Number of pixels along X-axis
25- 28 I4 --- Ny Number of pixels along Y-axis
30- 33 I4 Kibyte size Size of FITS file
35- 56 A22 --- FileName Name of FITS file, in subdirectory fits
58-107 A50 --- Title Title of the FITS file
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Acknowledgements:
Claudio Codella, codella(at)arcetri.astro.it
(End) Patricia Vannier [CDS] 09-Jan-2017