First results from the Herschel Gould Belt Survey in the Ophiuchus cloud
A. Men'shchikov, V. Konyves, N. Schneider, P. Palmeirim, D. Arzoumanian, N. Peretto, P. Didelon, F. Motte, D. Ward-Thompson, J. Kirk, and the Herschel Gould Belt Consortium
I will present the first results from the Herschel Gould Belt survey (HGBS) in the Ophiuchus cloud complex, one of the nearest regions of low- to intermediate-mass star formation, including the well-documented cluster-forming ridge L1688. Comparing these results with those obtained in other regions of the Gould Belt, I will discuss preliminary implications of the HGBS findings for our understanding of, e.g., the link between the prestellar core mass function and the stellar IMF, the timescale of the core formation process, and the column density threshold for star formation on global scales. The role of filaments and their likely connection to interstellar turbulence will be emphasized. Overall, the HGBS results suggest that it may be possible to understand both the IMF and the global rate of star formation in galaxies by studying the physics of how dense structures (e.g. filaments, cores) form and grow in the ISM of our own Galaxy.