305 citations · 4.1k across the 51 of their papers we have counts for
8 papers · 1 filter
Deuterated water in the solar-type protostars NGC 1333 IRAS 4A and IRAS 4B
A. Coutens, C. Vastel, S. Cabrit +19
Aims. The aim of this paper is to study deuterated water in the solar-type protostars NGC1333 IRAS4A and IRAS4B, to compare their HDO abundance distribution with other star-forming…
Deep observations of O2 toward a low-mass protostar with Herschel-HIFI
Umut A. Yıldız, Kinsuk Acharyya, Paul F. Goldsmith +13
According to traditional gas-phase chemical models, O2 should be abundant in molecular clouds, but until recently, attempts to detect interstellar O2 line emission with ground- and…
High-J CO survey of low-mass protostars observed with Herschel-HIFI
Umut A. Yıldız, Lars E. Kristensen, Ewine F. van Dishoeck +8
The evolution of deeply embedded young stellar objects (YSOs) has traditionally been traced through dust continuum spectral energy distributions (SEDs), but the use of CO excitatio…
Outflow forces of low mass embedded objects in Ophiuchus: a quantitative comparison of analysis methods
Nienke van der Marel, Lars E. Kristensen, Ruud Visser +3
The outflow force of molecular bipolar outflows is a key parameter in theories of young stellar feedback on their surroundings. The focus of many outflow studies is the correlation…
Embedded Protostars in the Dust, Ice, and Gas In Time (DIGIT) Key Program: Continuum SEDs, and an Inventory of Characteristic Far-Infrared Lines from PACS Spectroscopy
Joel D. Green, Neal J. Evans, Jes K. Jørgensen +17
We present 50-210 um spectral scans of 30 Class 0/I protostellar sources, obtained with Herschel-PACS, and 0.5-1000 um SEDs, as part of the Dust, Ice, and Gas in Time (DIGIT) Key P…
High-pressure, low-abundance water in bipolar outflows. Results from a Herschel-WISH survey
M. Tafalla, R. Liseau, B. Nisini +6
(Abridged) We present a survey of the water emission in a sample of more than 20 outflows from low mass young stellar objects with the goal of characterizing the physical and chemi…
Water in star forming regions with Herschel (WISH) III. Far-infrared cooling lines in low-mass young stellar objects
A. Karska, G. J. Herczeg, E. F. van Dishoeck +22
(Abridged) Far-infrared Herschel-PACS spectra of 18 low-mass protostars of various luminosities and evolutionary stages are studied. We quantify their far-infrared line emission an…
Herschel-HIFI observations of high-J CO and isotopologues in star-forming regions: from low- to high-mass
I. San Jose-Garcia, J. C. Mottram, L. E. Kristensen +9
Context; Our understanding of the star formation process has traditionally been confined to certain mass or luminosity boundaries because most studies focus only on low-, intermedi…