First Results from the $Herschel$ and ALMA Spectroscopic Surveys of the SMC: The Relationship Between [CII]-bright Gas and CO-bright Gas at Low Metallicity
The Small Magellanic Cloud (SMC) provides the only laboratory to study the structure of molecular gas at high resolution and low metallicity. We present results from the Herschel Spectroscopic Survey of the SMC (HS$^{3}$), which mapped the key far-IR cooling lines [CII], [OI], [NII], and [OIII] in f...
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Zusammenfassung: | The Small Magellanic Cloud (SMC) provides the only laboratory to study the
structure of molecular gas at high resolution and low metallicity. We present
results from the Herschel Spectroscopic Survey of the SMC (HS$^{3}$), which
mapped the key far-IR cooling lines [CII], [OI], [NII], and [OIII] in five
star-forming regions, and new ALMA 7m-array maps of $^{12}$CO and $^{13}$CO
$(2-1)$ with coverage overlapping four of the five HS$^{3}$ regions. We detect
[CII] and [OI] throughout all of the regions mapped. The data allow us to
compare the structure of the molecular clouds and surrounding photodissociation
regions using $^{13}$CO, CO, [CII], and [OI] emission at $ |
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DOI: | 10.48550/arxiv.1801.03518 |