J/A+A/605/A21 H2CO production in HD 163296 (Carney+, 2017)
Increased H2CO production in the outer disk around HD 163296.
Carney M.T., Hogerheijde M.R., Loomis R.A., Salinas, V.N., Oberg K.I.,
Qi C., Wilner D.J.
<Astron. Astrophys. 605, A21 (2017)>
=2017A&A...605A..21C 2017A&A...605A..21C (SIMBAD/NED BibCode)
ADC_Keywords: YSOs ; Protostars
Keywords: astrochemistry - protoplanetary disks - submillimeter: stars
Abstract:
We analyze the radial distribution of H2CO and C18O in the
protoplanetary disk around HD 163296, a Herbig Ae type protostar, with
the aim of determining possible formation scenarios of H2CO. By
comparing the two molecules and the millimeter continuum, we
investigate the relationship between the presence of H2CO and CO
depletion in the disk.
Description:
The FITS files contain data cubes for H2CO(303-202),
H2CO(322-221), H2CO(321-220), C18O(2-1), and a 2D image
of the 1.3mm continuum.
The observations were taken with the Atacama Large
Millimeter/submillimeter Array (ALMA). The formaldehyde and 1.3mm
continuum data have a spatial resolution of 0.5". The C18O(2-1) data
is part of the ALMA Science Verification data set released for HD
163296, with an angular resolution of 0.8".
Objects:
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RA (2000) DE Designation(s)
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17 56 21.29 -21 57 21.9 HD 163296 = HIP 87819
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
list.dat 160 5 List of FITS data files
fits/* . 5 Individual FITS data 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 F4.2 arcsec/pix Scale [0.08/0.10] Scale of the image
25- 27 I3 --- Nx [256] Number of pixels along X-axis
29- 31 I3 --- Ny [256] Number of pixels along Y-axis
33- 35 I3 --- Nz [1/400] Number of channels along Z-axis
37- 58 A22 --- Date Observation date (YYYY-MM-DDThh:mm:ss.ss)
60- 66 F7.3 km/s b_Vel [-11/-10]? Lower value of velocity interval
68- 73 F6.3 km/s B_Vel [22/24]? Upper value of velocity interval
75- 79 F5.3 km/s dVel [0.084/0.334]? Velocity resolution
81- 88 F8.4 GHz Freq [218/225] Rest frequency of the
line/continuum
90- 95 I6 Kibyte size [397/105091] Size of the FITS file
97-118 A22 --- FileName Name of FITS file in subdirectory fits
120-160 A41 --- Title Title of the file
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Acknowledgements:
Mason Carney, masoncarney(at)strw.leidenuniv.nl
(End) Mason Carney [Univ. Leiden], Patricia Vannier [CDS] 18-Jul-2017