@inproceedings{6d16bf1125234c84af4c1486fe525d25,
title = "Surprisingly weak fine-structure line emission from S 140",
abstract = "GREAT observations of the [Oi] and [Cii] fine-structure lines in S 140 show very low intensities towards the embedded sources. We measure line-to-continuum cooling ratios of 10-5 - 10-4, i.e. values matching the far-IR line deficit seen in ULIRGs. Normal PDR models fail to explain the combination of source size, line ratios, and absolute line intensities. A match is, however, possible when modelling the sources in terms of inside-out PDRs. The small beam-filling of PDRs in a dense homogeneous medium can lead to a line deficit compared to the infrared continuum, emitted from a much larger region.",
author = "V. Ossenkopf and E. Koumpia and Y. Okada and B. Mookerjea and {van der Tak}, {F. F. S.}",
note = "M1 - Conference Proceedings",
year = "2016",
doi = "10.1051/eas/1575038",
language = "English",
volume = "75-76",
series = "EAS Publications Series",
pages = "199--200",
booktitle = "Conditions and Impact of Star Formation",
}