The far-IR view of Sgr B2 and Orion KL

TL;DR

This paper reviews ISO far-infrared observations of Sgr B2 and Orion KL, highlighting their importance as templates for distant star-forming regions and discussing spectral line interpretation challenges.

Contribution

It provides a summarized analysis of far-IR spectral data from ISO for Sgr B2 and Orion KL, emphasizing their role as benchmarks for unresolved extragalactic regions.

Findings

Identification of key spectral lines in the far-IR range

Discussion of excitation and radiative transfer peculiarities

Implications for interpreting distant star-forming regions

Abstract

We summarize the main highlights from ISO observations towards Sgr B2 and Orion KL in the far-IR domain (~43 to 197 um). Both Star-Forming Regions are among the best sources to construct a template for more distant and unresolved regions (e.g., extragalactic). We stress some peculiarities in the interpretation (excitation and radiative transfer) of far-IR spectral lines and dust continuum emission.