Depletion of chlorine into HCl ice in a protostellar core: The CHESS spectral survey of OMC-2 FIR 4

Kama, M.
Caux, E.
López-Sepulcre, A.
Wakelam, V.
Dominik, C.
Ceccarelli, C.
Lanza, M.
Lique, F.
Ochsendorf, B. B.
Lis, D. C.
Caballero, R. N.
Tielens, A. G. G. M.

Publication date

February 2015

Publisher

EDP Sciences

Abstract

Context. The freezeout of gas-phase species onto cold dust grains can drastically alter the chemistry and the heating-cooling balance of protostellar material. In contrast to well-known species such as carbon monoxide (CO), the freezeout of various carriers of elements with abundances <10^(-5) has not yet been well studied. Aims. Our aim here is to study the depletion of chlorine in the protostellar core, OMC-2 FIR 4. Methods. We observed transitions of HCl and H_2Cl^+ towards OMC-2 FIR 4 using the Herschel Space Observatory and Caltech Submillimeter Observatory facilities. Our analysis makes use of state of the art chlorine gas-grain chemical models and newly calculated HCl-H_2 hyperfine collisional excitation rate coefficients. R...

Extracted data

We use cookies to provide a better user experience.

Data Protection

Depletion of chlorine into HCl ice in a protostellar core: The CHESS spectral survey of OMC-2 FIR 4

Abstract

Extracted data

Depletion of chlorine into HCl ice in a protostellar core: The CHESS spectral survey of OMC-2 FIR 4

Abstract

Extracted data

Related items

Related items