supernova; chemical kinetics; supernova remnant; astrochemistry; nucleosynthesis; shocks; dust; molecules
Sarangi Arkaprabha, Cherchneff Isabelle (2014), IR and sub-mm fluxes of SN1987A revisited: when moderate dust masses suffice, in IAU Symposium 296
, Raichak, India.
Biscaro Chiara, Cherchneff Isabelle (2014), Molecules and dust in Cassiopeia A. I. Synthesis in the supernova phase and processing by the reverse shock in the clumpy remnant, in Astronomy & Astrophysics
, 564, A25.
Cherchneff Isabelle, Sarangi Arkaprabha (2014), Molecules and dust in the ejecta of Type II-P supernovae, in IAU Symposium 296
, Raichak, India.
Wallstroem Sofia, Biscaro Chiara, Salgado F (2013), CO rotational line emission from a dense knot in Cassiopeia A. Evidence for active post-reverse-shock chemistry, in Astronomy & Astrophysics
, 558, L2.
Sarangi Arkaprabha, Cherchneff Isabelle (2013), Condensation of dust in supernova ejecta, in The Life Cycle of Dust in the Universe: Observations, Theory, and Laboratory Experiments
, Tapei, taiwan.
Cherchneff Isabelle (2013), Dust production in Supernovae, in PoS publications
Biscaro Chiara, Cherchneff Isabelle (2013), Molecule and dust reprocessing by the reverse shock in the supernova remnant Cas A, in The Life Cycle of Dust in the Universe: Observations, Theory, and Laboratory Experiments
, Tapei, Taiwan.
Sarangi Arkaprabha, Cherchneff Isabelle (2013), The Chemically Controlled Synthesis of Dust in Type II-P Supernovae, in The Astrophysical Journal
, 776, 107.
Sarangi Arkaprabha, Cherchneff Isabelle, Condensation of dust in the ejecta of type II-P supernovae, in Astronomy & Astrophysics
This project is a request for a one-year prolongation of the project 20GN21_128950 related to the Collaborative Research Project CoDustMas, part of the EuroGENESIS programme from the ESF. The project involves a broad study of dust formation and reprocessing in core-collapse supernovae and their remnants, with the objective to determine whether supernovae are dust producers or destroyers in local and far away galaxies. The first part of the project is related to studying the chemistry of core-collapse supernova explosion and ejecta, with a focus on the dust formation process. The objectives are: (1) characterise the molecular component of SN ejecta; (2) identify the physical and chemical processes that drive dust formation; (3) derive dust chemical composition and mass yields for various progenitors; and (4) test the modelled results against most recent observations of supernovae. The second part is related to the evolution of the molecular and dust component of the ejecta in supernova remnants. We study the chemistry of the ejecta gas that is crossed by the reverse shock in the remnant Cas A. The objectives are (1) characterise the ejecta of the Cas A progenitor, (2) assess the survival of molecules and dust in dense clumps, and (3) test the results against the most recent observations of Cas A with Herschel and ALMA. The proposal is disconnected to the newly submitted SNF project 20130331 titled “Forming Dust in Low- an High-Mass Stars”, though complementary in the global context of the new research line on cosmic dust initiated at Basel University in 2009. To achieve our objectives, we ask for a one-year prolongation for each of the two PhD students currently employed under the project 20GN21_128950, equivalent to a total budget of 104 760 CHF for the one-year length of the proposal.