The ALMA Protostellar Interferometric Line Survey (PILS)
- J. Jørgensen, M. Wiel, S. Wampfler
- Physics
- 29 July 2016
The inner regions of the envelopes surrounding young protostars are characterised by a complex chemistry, with prebiotic molecules present on the scales where protoplanetary disks eventually may…
Water in star-forming regions with Herschel (WISH). II. Evolution of 557 GHz 110-101 emission in low-mass protostars
- L. Kristensen, E. Dishoeck, F. Wyrowski
- Physics, Environmental Science
- 30 March 2012
Context. Water is a key tracer of dynamics and chemistry in low-mass star-forming regions, but spectrally resolved observations have so far been limited in sensitivity and angular resolution, and…
Sulphur-bearing species in the coma of comet 67P/Churyumov–Gerasimenko
- U. Calmonte, K. Altwegg, S. Wampfler
- Physics, Geology
- 16 November 2016
Several sulphur-bearing species have already been observed in different families of comets. However, the knowledge on the minor sulphur species is still limited. The comet's sulphur inventory is…
Water in star-forming regions with Herschel (WISH) - III. Far-infrared cooling lines in low-mass young stellar objects
- A. Karska, G. Herczeg, F. Wyrowski
- Physics
- 21 January 2013
Context. Understanding the physical phenomena involved in the earlierst stages of protostellar evolution requires knowledge of the heating and cooling processes that occur in the surroundings of a…
Detection of glycolaldehyde toward the solar-type protostar NGC 1333 IRAS2A ?
- A. Coutens, M. Persson, J. Jørgensen, S. Wampfler, J. Lykke
- Physics
- 3 February 2015
Glycolaldehyde is a key molecule in the formation of biologically relevant molecules such as ribose. We report its detection with the Plateau de Bure interferometer toward the Class 0 young stellar…
The ALMA-PILS survey: isotopic composition of oxygen-containing complex organic molecules toward IRAS 16293–2422B
- J. Jørgensen, H. Muller, S. Wampfler
- PhysicsAstronomy & Astrophysics
- 27 August 2018
Context. One of the important questions of astrochemistry is how complex organic molecules, including potential prebiotic species, are formed in the envelopes around embedded protostars. The…
Elemental and molecular abundances in comet 67P/Churyumov-Gerasimenko
- M. Rubin, K. Altwegg, P. Wurz
- Physics, GeologyMonthly notices of the Royal Astronomical Society
- 25 July 2019
Comets are considered to be some of the most pristine and unprocessed Solar system objects accessible to in situ exploration. Investigating their molecular and elemental composition takes us on a…
The ALMA-PILS survey: detection of CH3NCO towards the low-mass protostar IRAS 16293−2422 and laboratory constraints on its formation
- N. Ligterink, A. Coutens, E. Dishoeck
- Physics
- 9 March 2017
Methyl isocyanate (CH3NCO) belongs to a select group of interstellar molecules considered to be relevant precursors in the formation of larger organic compounds, including those with peptide bonds.…
The ALMA-PILS survey: First detections of ethylene oxide, acetone and propanal toward the low-mass protostar IRAS 16293-2422
- J. Lykke, A. Coutens, S. Wampfler
- Physics
- 22 November 2016
Context. One of the open questions in astrochemistry is how complex organic and prebiotic molecules are formed. The unsurpassed sensitivity of the Atacama Large Millimeter/submillimeter Array (ALMA)…
The ALMA-PILS survey: the sulphur connection between protostars and comets: IRAS 16293-2422 B and 67P/Churyumov-Gerasimenko
- M. Drozdovskaya, E. Dishoeck, K. Altwegg
- Physics
- 8 February 2018
The evolutionary past of our Solar system can be pieced together by comparing analogous lowmass protostars with remnants of our Protosolar Nebula - comets. Sulphur-bearing molecules may be unique…
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