Computational modeling of circumstellar environment of protostars by employing data of bombarded ices with cosmic rays simulated in laboratory.

• Grant number: 13/07657-5
• Support type: Scholarships in Brazil - Doctorate
• Effective date (Start): August 01, 2013
• Effective date (End): July 31, 2015
• Field of knowledge: Physical Sciences and Mathematics - Astronomy - Astrophysics of the Interstellar Medium
• Principal researcher: Sergio Pilling Guapyassu de Oliveira
• Grantee: Will Robson Monteiro Rocha
• Home Institution: Instituto de Pesquisa e Desenvolvimento (IP&D). Universidade do Vale do Paraíba (UNIVAP). São José dos Campos , SP, Brazil
• Associated research grant: 09/18304-0 - Synthesis and degradation of prebiotic molecular species at planetary atmospheres, comets and interstellar ice analogs, AP.JP

Abstract

The aims of the project is to study the radiation-matter interaction inside dense molecular clouds using optical properties of interstellar grains determined from experimental data at the infrared wavelength region and computational model.

Scientific publications

(13)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

PILLING, SERGIO; CARVALHO, GEANDERSON A.; ROCHA, WILL R. M. hemical Evolution of CO2 Ices under Processing by Ionizing Radiation: Characterization of Nonobserved Species and Chemical Equilibrium Phase with the Employment of PROCODA Cod. ASTROPHYSICAL JOURNAL, v. 925, n. 2 FEB 1 2022. Web of Science Citations: 0.

CARVALHO, G. A.; PILLING, S. Photolysis of CH3CN Ices by Soft X-rays: Implications for the Chemistry of Astrophysical Ices at the Surroundings of X-ray Sources. Journal of Physical Chemistry A, v. 124, n. 41, p. 8574-8584, OCT 15 2020. Web of Science Citations: 1.

CARVALHO, G. A.; PILLING, S. X-ray photolysis of CH3COCH3 ice: implications for the radiation effects of compact objects towards astrophysical ices. Monthly Notices of the Royal Astronomical Society, v. 498, n. 1, p. 689-701, OCT 2020. Web of Science Citations: 1.

RACHID, M. G.; PILLING, S.; ROCHA, W. R. M.; AGNIHOTRI, A.; ROTHARD, H.; BODUCH, P. Processing of 72-K water-rich ices by keV and MeV oxygen ions: implications for the Saturnian moon Enceladus. Monthly Notices of the Royal Astronomical Society, v. 494, n. 2, p. 2396-2409, MAY 2020. Web of Science Citations: 0.

ROCHA, W. R. M.; PILLING, S.; DOMARACKA, A.; ROTHARD, H.; BODUCH, P. Infrared complex refractive index of N-containing astrophysical ices free of water processed by cosmic-ray simulated in laboratory. SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, v. 228, MAR 5 2020. Web of Science Citations: 0.

PILLING, S.; ROCHA, W. R. M.; FREITAS, F. M.; DA SILVA, P. A. Photochemistry and desorption induced by X-rays in water rich astrophysical ice analogs: implications for the moon Enceladus and other frozen space environments. RSC ADVANCES, v. 9, n. 49, p. 28823-28840, SEP 12 2019. Web of Science Citations: 0.

VASCONCELOS, FREDSON DE A.; PILLING, SERGIO; ROCHA, WILL R. M.; ROTHARD, HERMANN; BODUCH, PHILIPPE. Energetic Processing of N-2:CH4 Ices Employing X-Rays and Swift Ions: Implications for Icy Bodies in the Outer Solar System. ASTROPHYSICAL JOURNAL, v. 850, n. 2 DEC 1 2017. Web of Science Citations: 3.

VASCONCELOS, F. A.; PILLING, S.; ROCHA, W. R. M.; ROTHARD, H.; BODUCH, P. Radiolysis of N-2-rich astrophysical ice by swift oxygen ions: implication for space weathering of outer solar system bodies. Physical Chemistry Chemical Physics, v. 19, n. 35, p. 24154-24165, SEP 21 2017. Web of Science Citations: 4.

VASCONCELOS, F. A.; PILLING, S.; ROCHA, W. R. M.; ROTHARD, H.; BODUCH, P.; DING, J. J. Ion irradiation of pure and amorphous CH4 ice relevant for astrophysical environments. Physical Chemistry Chemical Physics, v. 19, n. 20, p. 12845-12856, MAY 28 2017. Web of Science Citations: 13.

ROCHA, W. R. M.; PILLING, S.; DE BARROS, A. L. F.; ANDRADE, D. P. P.; ROTHARD, H.; BODUCH, P. Infrared complex refractive index of astrophysical ices exposed to cosmic rays simulated in the laboratory. Monthly Notices of the Royal Astronomical Society, v. 464, n. 1, p. 754-767, JAN 2017. Web of Science Citations: 3.

BOSSA, JEAN-BAPTISTE; MATE, BELEN; FRANSEN, COEN; CAZAUX, STEPHANIE; PILLING, SERGIO; MONTEIRO ROCHA, WILL ROBSON; ORTIGOSO, JUAN; LINNARTZ, HAROLD. POROSITY AND BAND-STRENGTH MEASUREMENTS OF MULTI-PHASE COMPOSITE ICES. ASTROPHYSICAL JOURNAL, v. 814, n. 1 NOV 20 2015. Web of Science Citations: 10.

ROCHA, W. R. M.; PILLING, S. COMPUTATIONAL MODELING OF THE CLASS I LOW-MASS PROTOSTAR ELIAS 29 APPLYING OPTICAL CONSTANTS OF ICES PROCESSED BY HIGH ENERGY COSMIC RAY ANALOGS. ASTROPHYSICAL JOURNAL, v. 803, n. 1 APR 10 2015. Web of Science Citations: 6.

ROCHA, W. R. M.; PILLING, S. Determination of optical constants n and k of thin films from absorbance data using Kramers-Kronig relationship. SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, v. 123, p. 436-446, APR 5 2014. Web of Science Citations: 13.