Unveiling the whole from its parts or to see the forest for the trees

Eduardo Janot-Pacheco, Marina Rachid, Philippe Bendjoya, Armando Domiciano, Caroline Antunes-Rosa, Marcelo Emilio, Claudia Lage, Bruce G. Elmegreen, L. Viktor Tóth, Manuel Güdel

Research output: Contribution to journalArticle


If biologically complex molecules as DNA were present in the extraterrestrial targets, their spectral signatures would be rather difficult to be unambiguously identified. As a matter of fact, the molecular array of a single nucleobasis will generate a tangled spectral signature. On the other hand, a part of it, e.g. bands due to the group of HNCO of guanine may have been detected but associated to smaller molecules, e.g. isocianic acid (HNCO). However, if comprised in a nucleobasis, its detection would be misinterpreted. Five key transitions were preliminarly selected for either purines and pyrimidines that should be observed together in the same target. If this happens, it may be that we are detecting the whole from its parts.

Original languageEnglish
Pages (from-to)215-218
Number of pages4
JournalProceedings of the International Astronomical Union
Publication statusAccepted/In press - Jan 1 2020



  • astrochemistry
  • ISM: Lines and bands
  • ISM: Molecules

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • Astronomy and Astrophysics
  • Nutrition and Dietetics
  • Public Health, Environmental and Occupational Health
  • Space and Planetary Science

Cite this

Janot-Pacheco, E., Rachid, M., Bendjoya, P., Domiciano, A., Antunes-Rosa, C., Emilio, M., Lage, C., Elmegreen, B. G., Tóth, L. V., & Güdel, M. (Accepted/In press). Unveiling the whole from its parts or to see the forest for the trees. Proceedings of the International Astronomical Union, 215-218. https://doi.org/10.1017/S1743921319002138