tokens: Acknowledgments We would like to thank Dmitriy Blinov, Vasiliki Pavlidou and Aris Tritsis for fruitful discussions as well as Vassilis Charmandaris, Paul Goldsmith, Nick Kylafis and Josh Peek for their helpful comments on the paper. We are grateful to the anonymous reviewer for a detailed report that greatly improved this work. Also, we thank Monica He for her contribution during the first steps of this work and Damianos Mylonakis for helping out with technical issues. We used the python module corner (Foreman-Mackey 2016 ) to produce Fig. 5 . This research has made use of astropy , a community-developed core python package for Astronomy (Astropy Collaboration 2013 ). GVP and KT acknowledge support by FP7 through the Marie Curie Career Integration Grant PCIG-GA-2011-293531 SFOnset and partial support from the EU FP7 Grant PIRSES-GA-2012-31578 EuroCal. JJA acknowledges funding from the European Research Council under the European Unions Seventh Framework Programme (FP/2007-2013)/ERC Grant Agreement no. 617001. This research has used data from the Herschel Gould Belt Survey (HGBS) project ( http://gouldbelt-herschel.cea.fr ). The HGBS is a Herschel Key Programme jointly carried out by SPIRE Specialist Astronomy Group 3 (SAG 3), scientists of several institutes in the PACS Consortium (CEA Saclay, INAF-IFSI Rome and INAF-Arcetri, KU Leuven, MPIA Heidelberg) and scientists of the Herschel Science Center (HSC).
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