F. F. S. van der Tak

TL;DR: In this paper, the authors provided new relations to estimate the SFR from resolved star-forming regions at 100 and 160 micrometers, respectively, in the nearby (840 kpc) galaxy M33.

TL;DR: In this article, the velocity-resolved Herschel-HIFI observations of the ortho-NH_3(1_0-0_0) line at 572 GHz were used to study the abundance profile of ammonia across the pre-stellar core L1544 to test current theories of its physical and chemical structure.

TL;DR: In this article, the authors used the H3O+ molecule to investigate the impact of starburst and AGN activity on the chemistry of the molecular interstellar medium and found that the H 3O+ to HCO+ column density ratio is large in all detected galaxies apart from in IC 342 where it is about one order of magnitude lower, however, uncertainties in N(H3O+) may be significant due to lack of definite information on source size and excitation.

TL;DR: In this paper, the authors present the Herschel/HIFI spectra of the H2O 1113 GHz and H 2O+ 1115 GHz lines toward five nearby prototypical starburst/AGN systems, and OH+ 971 GHz spectra toward three of these.

TL;DR: In this paper, the authors used the Heterodyne Instrument for the Far-Infrared (HIFI) on Herschel to obtain the first hyperfine velocity-resolved OH far-infrared spectrum of a star-forming region.