Access to Astronomical Catalogues

← Click to display the menu
J/A+A/614/A106   Probing midplane structure with DCO+ in HD169142 (Carney+ 2018)

Probing midplane CO abundance and gas temperature with DCO+ in the protoplanetary disk around HD 169142. Carney M.T., Fedele D., Hogerheijde M.R., Favre C., Walsh C., Bruderer S., Miotello A., Murillo N.M., Klaassen P.D., Henning Th., van Dishoeck E.F. <Astron. Astrophys. 614, A106 (2018)> =2018A&A...614A.106C (SIMBAD/NED BibCode)
ADC_Keywords: YSOs ; Protostars Keywords: astrochemistry - submillimeter: planetary systems - protoplanetary disks Abstract: We analyze the radial distribution of DCO+ in the protoplanetary disk around HD 169142, a Herbig Ae type star, with the aim of determining possible formation scenarios of DCO+. Using a simple chemical model, we investigate the effect of gas-phase CO abundance and gas temperature on the production of DCO+ near the disk midplane. Model fits to the DCO+ radial profile suggest a much colder disk midplane than the disk physical structure obtained from the literature. Description: The FITS files contain data cubes for DCO+ (J=3-2), C18O (J=2-1), and a 2D image of the 1.3mm (233GHz) continuum. The observations were taken with the Atacama Large Millimeter/submillimeter Array (ALMA). The data have a spatial resolution of 0.3". The C18O and continuum data have been previously published in Fedele, et al (2017A&A...600A..72F). Objects: ---------------------------------------------------- RA (2000) DE Designation(s) ---------------------------------------------------- 18 24 29.78 -29 46 49.32 HD 169142 = EM* MWC 925 ---------------------------------------------------- File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file list.dat 142 3 List of fits datacubes and image fits/* 0 3 Individual fits datacubes and image
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 F4.2 arcsec/pix Scale [0.05] 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- 62 A26 --- Obs.Date Observation date (YYYY-MM-DDThh:mm:ss.ssssss) 64- 70 F7.3 km/s bVel [-9.9/-9.7]? Lower value of velocity interval 72- 77 F6.3 km/s BVel [23.816/24.015]? Upper value of velocity interval 79- 83 F5.3 km/s dVel [0.084/0.085]? Velocity resolution 85- 92 F8.4 GHz Freq [216/233] Rest frequency of line/continuum 94- 99 I6 Kibyte size [309/102442] Size of the FITS file 101-125 A25 --- FileName Name of FITS file in subdirectory fits 126-142 A17 --- Title Title of the file
Acknowledgements: Mason Carney, masoncarney(at)strw.leidenuniv.nl
(End) Mason Carney [Univ. Leiden], Patricia Vannier [CDS] 19-Mar-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

catalogue service

© Unistra/CNRS

Contact