Synthesis and degradation of prebiotic molecular species at planetary atmospheres, comets and interstellar ice analogs

• Grant number: 09/18304-0
• Support Opportunities: Research Grants - Young Investigators Grants
• Start date: May 01, 2012
• End date: April 30, 2016
• Field of knowledge: Physical Sciences and Mathematics - Astronomy
• Principal Investigator: Sergio Pilling Guapyassu de Oliveira
• Grantee: Sergio Pilling Guapyassu de Oliveira
• Host Institution: Instituto de Pesquisa e Desenvolvimento (IP&D). Universidade do Vale do Paraíba (UNIVAP). São José dos Campos , SP, Brazil
• Associated research grant(s): 15/20132-4 - The effect of broadband soft X-rays in SO2-containing ices: Implication on the photochemistry of ices Toward young stellar objects., PUB.ART; 15/16976-2 - Porosity measurement of genuine interstellar ices using mid-infrared optical constants and extended effective medium approximations, AV.EXT
• Associated scholarship(s): 15/10492-3 - Study about the chemical evolution of astrophysical ices in the vicinity of young stellar objects employing experimental data in the infrared and computational modeling codes, BP.PD; 14/08643-0 - Experimental investigation on the photolysis of astrophysical ices containing acetic acid and its isomers (methyl formate and glycolaldehyde), BP.IC; 13/07657-5 - Computational modeling of circumstellar environment of protostars by employing data of bombarded ices with cosmic rays simulated in laboratory., BP.DR; 12/17248-2 - Production of molecules with astrobiological interest in experiments simulating the moon Enceladus in the presence of UV photons, X-rays, electrons, and fast ions, BP.DR

Abstract

With the help of modern radiostronomy more than 150 molecular species, including hydrocarbons, nitriles, acids, alcohols and others, have been detected in the interestelar medium, comets and planetary/lunar atmospheres. Additionally, meteorites analysis have been revealed the presence of several prebiotic compounds (e.g., amino acids, DNA/RNA nitrogen bases, sugars, etc.). These investigations have suggested that Earth´s life could have an extraterrestrial origin. Therefore, the understanding about formation/destruction processes of these prebiotic species at astrophysical environments becomes essential. In this project we will perform experimental investigation of the formation of prebiotic molecules by UV photochemical processing of condensed simple gas mixtures (H2O, CO, CH4, NH3, etc.) simulating the processing of astrophysical ices (e.g., comets, interstellar grains, etc.). Inside a ultra-high vacuum chamber, the gases will be adsorbed into a cryogenic surface (10K) and then processed by very intense UV light from a hydrogen lamp. The sample will be analyzed in-situ by 2 different of spectrometers (FTIR and Q-MS) and by a gas-chromatograph (GC-MS). Besides the identification and quantification of new molecular compounds, their formation and dissociation cross-sections, reaction rates and life times will be determined. This scientific proposal will start the experimental astrochemistry research field in our institute. (AU)

Scientific publications

(24)

(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)

RACHID, MARINA G.; FAQUINE, KARLA; PILLING, S.. Destruction of C2H4O2 isomers in ice-phase by X-rays: Implication on the abundance of acetic acid and methyl formate in the interstellar medium. Planetary and Space Science, v. 149, n. SI, p. 83-93, DEC 1 2017. (12/17248-2, 09/18304-0, 14/08643-0, 16/11334-5)

FABRICIO M. FREITAS; SÉRGIO PILLING. LABORATORY INVESTIGATION OF X-RAY PHOTOLYSIS OF METHANOL ICE AND ITS IMPLICATION ON ASTROPHYSICAL ENVIRONMENTS. Química Nova, v. 43, n. 5, p. 521-527, 2020-06-29. (09/18304-0)

CARVALHO, G. A.; PILLING, S.. Time-scales to reach chemical equilibrium in ices at snowline distance around compact objects: the influence of accretion mass in the central object. Monthly Notices of the Royal Astronomical Society, v. 503, n. 2, p. 2973-2978, MAY 2021. (09/18304-0)

CARVALHO, GEANDERSON A.; PILLING, SERGIO. Chemical changes induced during heating of acetonitrile-rich ice pre-irradiated by X-rays and its implication in astrochemistry. SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, v. 267, n. 1, FEB 15 2022. (09/18304-0)

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. (13/07657-5, 09/18304-0, 15/10492-3)

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. (13/07657-5, 09/18304-0)

PILLING, S.; BERGANTINI, A.. THE EFFECT OF BROADBAND SOFT X-RAYS IN SO2-CONTAINING ICES: IMPLICATIONS ON. THE PHOTOCHEMISTRY OF ICES TOWARD YOUNG STELLAR OBJECTS. ASTROPHYSICAL JOURNAL, v. 811, n. 2, OCT 1 2015. (12/17248-2, 09/18304-0)

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. (15/10492-3, 09/18304-0, 13/07657-5)

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. (09/18304-0, 15/10492-3, 13/07657-5)

CARVALHO, GEANDERSON A.; PILLING, SERGIO; GALVAO, BRENO R. L.. Characterization of acetonitrile ice irradiated by X-rays employing the procoda code - I. Effective rate constants and abundances at chemical equilibrium. Monthly Notices of the Royal Astronomical Society, v. 515, n. 3, p. 13-pg., 2022-08-08. (09/18304-0)

BERGANTINI, A.; PILLING, S.; NAIR, B. G.; MASON, N. J.; FRASER, H. J.. Processing of analogues of plume fallout in cold regions of Enceladus by energetic electrons. ASTRONOMY & ASTROPHYSICS, v. 570, p. 8-pg., 2014-10-01. (09/18304-0, 12/17248-2)

PILLING, SERGIO; FREITAS, FABRICIO M.. LABORATORY INVESTIGATION OF X-RAY PHOTOLYSIS OF ETHANOL ICE AND ITS IMPLICATION ON ASTROPHYSICAL ENVIRONMENTS. REVISTA UNIVAP, v. 29, n. 61, p. 12-pg., 2023-01-01. (09/18304-0)

RACHID, MARINA G.; FAQUINE, KARLA; PILLING, S.. Destruction of C2H4O2 isomers in ice-phase by X-rays: Implication on the abundance of acetic acid and methyl formate in the interstellar medium. Planetary and Space Science, v. 149, p. 11-pg., 2017-12-01. (14/08643-0, 09/18304-0, 16/11334-5, 12/17248-2)

BERGANTINI, A.; PILLING, S.; NAIR, B. G.; MASON, N. J.; FRASER, H. J.. Processing of analogues of plume fallout in cold regions of Enceladus by energetic electrons. Astronomy & Astrophysics, v. 570, OCT 2014. (12/17248-2, 09/18304-0)

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. (15/10492-3, 09/18304-0, 13/07657-5)

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. (13/07657-5, 09/18304-0, 15/10492-3)

PILLING, S.; BONFIM, V. S.. The influence of molecular vicinity (expressed in terms of dielectric constant) on the infrared spectra of embedded species in ices and solid matrices. RSC ADVANCES, v. 10, n. 9, p. 5328-5338, FEB 2 2020. (09/18304-0)

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. (13/07657-5, 09/18304-0, 15/10492-3)

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. (13/07657-5, 09/18304-0, 15/10492-3)

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. (13/07657-5, 09/18304-0)

BONFIM, VICTOR DE SOUZA; DE CASTILHO, ROBERTO BARBOSA; BAPTISTA, LEONARDO; PILLING, SERGIO. SO3 formation from the X-ray photolysis of SO2 astrophysical ice analogues: FTIR spectroscopy and thermodynamic investigations. Physical Chemistry Chemical Physics, v. 19, n. 39, p. 26906-26917, OCT 21 2017. (09/18304-0)

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. (13/07657-5, 09/18304-0)

VASCONCELOS, F. A.; PILLING, S.; AGNIHOTRI, A.; ROTHARD, H.; BODUCH, P.. Methylenimine and cyanomethanimine synthesis from ion irradiation of N-2-CH4 ice: Implication on the formation of prebiotic molecules in outer solar system bodies. ICARUS, v. 351, NOV 15 2020. (15/10492-3, 09/18304-0)

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. (13/07657-5, 09/18304-0, 15/10492-3)