Philipp Mertsch
Andrea Vittino
2020-12-31
<p>Maps of galactic H<sub>2</sub>, reconstructed from the CfA CO survey (Dame et al., ApJ 547 (2001) 792) data, <a href="https://www.cfa.harvard.edu/rtdc/">downloaded from the SAO Radio Telescope Data Center</a>, using a Bayesian variational inference approach.</p>
<p>Here, we provide the mean and standard deviation of the gas density (in cm<sup>-3</sup>) on a three-dimensional 512x512x16 grid, spanning -16 kpc < x < 16 kpc, 16 kpc < y < 16 kpc and -0.5 kpc < z < 0.5 kpc, both for the BEG03 and the SBM15 gas flow models:</p>
<ul>
<li>
<p>H2_dens_mean_BEG03.fits</p>
</li>
<li>
<p>H2_dens_stddev_BEG03.fits</p>
</li>
<li>
<p>H2_dens_mean_SBM15.fits</p>
</li>
<li>
<p>H2_dens_stddev_SBM15.fits</p>
</li>
</ul>
<p>In addition, we also publish the mean and standard deviation of the mass surface density (in M<sub>sun</sub> pc<sup>-2</sup>) on a two-dimensional 512x512 grid, spanning -16 kpc < x < 16 kpc and 16 kpc < y < 16 kpc, again for both gas flow models:</p>
<ul>
<li>
<p>H2_surf_mass_dens_mean_BEG03.fits</p>
</li>
<li>
<p>H2_surf_mass_dens_stddev_BEG03.fits</p>
</li>
<li>
<p>H2_surf_mass_dens_mean_SBM15.fits</p>
</li>
<li>
<p>H2_surf_mass_dens_stddev_SBM15.fits</p>
</li>
</ul>
<p>Throughout, we have assumed an CO-to-H<sub>2</sub> conversion factor X<sub>CO</sub>=2 10<sup>20</sup> molecules cm<sup>-2</sup> (K km s<sup>-1</sup>)<sup>-1</sup>. Refer to the FITS headers for more detailed information and see <a href="https://arxiv.org/abs/2012.15770">arXiv:2012.15770</a> for a detailed description of the reconstruction as well as a comparison with earlier studies.</p>
<p>When using the deprojected gas maps in your research work, please refer to this Zenodo dataset and the following publication<br>
P. Mertsch and A. Vittino, "Bayesian inference of three-dimensional gas maps: I. Galactic CO", <a href="https://arxiv.org/abs/2012.15770">arXiv:2012.15770</a>.</p>
Corrected mistake in the normalisation of reconstructed gas densities
https://doi.org/10.5281/zenodo.5501196
oai:zenodo.org:5501196
Zenodo
https://doi.org/10.5281/zenodo.4405436
info:eu-repo/semantics/openAccess
Creative Commons Attribution 4.0 International
https://creativecommons.org/licenses/by/4.0/legalcode
Galactic maps of H2, reconstructed from the CfA CO survey
info:eu-repo/semantics/other