J/A+A/604/A20 L1157-B1 DCN (2-1) and H13CN (2-1) datacubes (Busquet+, 2017)
The L1157-B1 astrochemical laboratory: testing the origin of DCN.
Busquet, G., Fontani, F., Viti, S., Codella, C., Lefloch, B.,
Benedettini, M., Ceccarellli, C.
<Astron. Astrophys. 604, A20 (2017)>
=2017A&A...604A..20B 2017A&A...604A..20B (SIMBAD/NED BibCode)
ADC_Keywords: YSOs ; Interstellar medium ; Radio lines ;
Spectra, millimetric/submm
Keywords: ISM: jets and outflows - ISM: molecules - ISM: abundances -
stars: formation
Abstract:
We performed high-angular-resolution observations toward L1157-B1 with
the IRAM NOEMA interferometer of the DCN (2-1) and H13CN (2-1) lines
to compute the deuterated fraction, Dfrac(HCN), and compare it with
previously reported Dfrac of other molecular species. Our aim is to
observationally investigate the role of the different chemical
processes at work that lead to formation of the DCN and compare it
with HDCO, the two deuterated molecules imaged with an interferometer,
and test the predictions of the chemical models for their formation.
Description:
IRAM NOEMA observations of DCN(2-1) and H13CN(2-1) toward the
brightest bow-shock B1 of the L1157 molecular outflow. All data cubes
are provided in fits format smoothed to a velocity resolution of
0.5km/s.
Objects:
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RA (2000) DE Designation(s)
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20 39 10.2 +68 01 10.5 L1157-B1 = [DE95] LDN 1157-B1
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
list.dat 98 2 List of data cubes
fits/* . 2 Individual data cubes
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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- 22 I3 --- Nx Number of pixels along X-axis
24- 26 I3 --- Ny Number of pixels along Y-axis
28- 30 I3 --- Nz Number of pixels along Z-axis
32- 36 F5.1 km/s bVRAD Lower value of VRAD interval
38- 41 F4.1 km/s BVRAD Upper value of VRAD interval
43- 45 F3.1 km/s dVRAD VRAD resolution
47- 51 I5 Kibyte size Size of FITS file
53- 74 A22 --- FileName Name of FITS file, in subdirectory fits
76- 98 A23 --- Title Title of the FITS file
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Acknowledgements:
Gemma Busquet, busquet(at)ice.cat
(End) Patricia Vannier [CDS] 30-Jun-2017