%0 Generic %1 cheng2017function %A Cheng, Yu %A Tan, Jonathan C. %A Liu, Mengyao %A Kong, Shuo %A Lim, Wanggi %A Andersen, Morten %A Da Rio, Nicola %D 2017 %K alma core function mass %T The Core Mass Function in the Massive Protocluster G286.21+0.17 revealed by ALMA %U http://arxiv.org/abs/1706.06584 %X We study the core mass function (CMF) of the massive protocluster G286.21+0.17 with the Atacama Large Millimeter/submillimeter Array via 1.3 mm continuum emission at a resolution of 1.0" (2500 au). We have mapped a field of 5.3'$\times$5.3' centered on the protocluster clump. We measure the CMF in the central region, exploring various core detection algorithms, which give source numbers ranging from 60 to 125, depending on parameter selection. For masses $M\gtrsim1\:M_ødot$, the CMF can be fit with a power law of the form $dN/dlogMM^-\alpha$ with $\alpha\simeq1.05-1.35$ in the fiducial cases, similar to the index of the Salpeter stellar initial mass function of 1.35. We discuss the implications of these results for star and star cluster formation theories.

@misc{cheng2017function, abstract = {We study the core mass function (CMF) of the massive protocluster G286.21+0.17 with the Atacama Large Millimeter/submillimeter Array via 1.3 mm continuum emission at a resolution of 1.0" (2500 au). We have mapped a field of 5.3'$\times$5.3' centered on the protocluster clump. We measure the CMF in the central region, exploring various core detection algorithms, which give source numbers ranging from 60 to 125, depending on parameter selection. For masses $M\gtrsim1\:M_\odot$, the CMF can be fit with a power law of the form ${\rm{d}}N/{\rm{d}}{\rm{log}}M\propto{M}^{-\alpha}$ with $\alpha\simeq1.05-1.35$ in the fiducial cases, similar to the index of the Salpeter stellar initial mass function of 1.35. We discuss the implications of these results for star and star cluster formation theories.}, added-at = {2017-06-22T09:34:06.000+0200}, author = {Cheng, Yu and Tan, Jonathan C. and Liu, Mengyao and Kong, Shuo and Lim, Wanggi and Andersen, Morten and Da Rio, Nicola}, biburl = {https://www.bibsonomy.org/bibtex/25935b68b102efefcfa9faebb20f55082/miki}, description = {[1706.06584] The Core Mass Function in the Massive Protocluster G286.21+0.17 revealed by ALMA}, interhash = {6536a6d77dbd9906db6e260f8e875010}, intrahash = {5935b68b102efefcfa9faebb20f55082}, keywords = {alma core function mass}, note = {cite arxiv:1706.06584Comment: 7 pages, submitted to ApJ, comments welcome}, timestamp = {2017-06-22T09:34:06.000+0200}, title = {The Core Mass Function in the Massive Protocluster G286.21+0.17 revealed by ALMA}, url = {http://arxiv.org/abs/1706.06584}, year = 2017 }