Phosphorous chemistry in the shocked region L1157 B1

Abstract

We study the evolution of phosphorous-bearing species in one-dimensional C-shock models. We find that the abundances of P-bearing species depend sensitively on the elemental abundance of P in the gas phase and on the abundance of N atoms in the pre-shock gas. The observed abundance of PN and the non-detection of PO towards L1157 B1 are reproduced in C-shock models with shock velocity v=20km s-1 and pre-shock density n(H2) =10^4 - 10^5, if the elemental abundance of P in the gas phase is 10^-9 and the N-atom abundance is n(N)/nH - 10^-5 in the pre-shock gas. We also find that P-chemistry is sensitive to O- and N-chemistry, because N atoms are destroyed mainly by OH and NO. We identify the reactions of O-bearing and N-bearing species that significantly affect P chemistry.

23pages, 12 figure, accepted for publication in ApJ

References in corpus (3)

• Formation of methyl formate and other organic species in the warm-up phase of hot molecular cores
• SiO line emission from C-type shock waves : interstellar jets and outflows
• Parametrization of C-shocks. Evolution of the Sputtering of Grains

Cited by in corpus (14)

• ALMA and ROSINA detections of phosphorus-bearing molecules: the interstellar thread between star-forming regions and comets
• Phosphorus-bearing molecules in solar-type star forming regions: First PO detection
• First detections of the key prebiotic molecule PO in star-forming regions
• Phosphorus-bearing molecules in the Galactic Center
• The chemistry of phosphorus-bearing molecules under energetic phenomena
• Synthetic observations of star formation and the interstellar medium
• Chemical complexity of phosphorous bearing species in various regions of the Interstellar medium
• Quantifying the chemical desorption of H${}_2$S and PH${}_3$ from amorphous water ice surfaces
• New Detections of Phosphorus Molecules towards Solar-type Protostars
• First images of phosphorus molecules towards a proto-Solar analog
• ACA observation and chemical modelling of phosphorus nitride (PN) towards the hot molecular cores G10.47+0.03 and G31.41+0.31
• Molecules and Chemistry in Red Supergiants
• Formation of phosphorus monoxide (PO) in the interstellar medium: insights from quantum-chemical and kinetic calculations
• Organic Acid Chemistry in ISM: Detection of Formic Acid and its Prebiotic Chemistry in Hot Core G358.93$-$0.03 MM1