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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Hauptverfasser: Jameson, Katherine E, Bolatto, Alberto D, Wolfire, Mark, Warren, Steven R, Herrera-Camus, Rodrigo, Croxall, Kevin, Pellegrini, Eric, Smith, John-David, Rubio, Monica, Indebetouw, Remy, Israel, Frank P, Meixner, Margaret, Roman-Duval, Julia, van Loon, Jacco Th, Muller, Erik, Verdugo, Celia, Zinnecker, Hans, Okada, Yoko
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Sprache:eng
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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 $
DOI:10.48550/arxiv.1801.03518