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Personal profile

Research interests

"The principal value of abundance determinations from stellar spectra is the clues they give to the nuclear history of stellar matter and, more generally, of the matter in the whole Galaxy." (Cayrel & Cayrel de Strobel 1966)

I am a stellar spectroscopist, expert in high-precision abundance determination in solar twin stars. My main scientific interests include the study of the Galactic chemical evolution and the detection of chemical signatures of planets in solar twin stars.

  • Galactic chemical evolution. The chemical composition of stars brings the information on the history of the matter in our Galaxy. We can use this information to acheve deeper understanding about the processes that governed the formation and evolution of the Milky Way. 
  • Chemical signatures of planets. The exoplanet exploration is still in its infancy. So far astronomers have detected only a handful of planetary systems with an architecture similar to that of our Solar System. The goal of my research is to investigate the possible connections between the chemical composition of stars and the presence of planetary systems similar to our Solar System. By developing an approach to identify stars that might host true analogues of our Solar System, astronomers will be able to identify the best targets for the forthcoming generation of telescopes, thought for the detection of Earth-twins and biosignatures of extraterrestrial life.

Research area keywords

  • Stellar Abundances
  • Planetary Science
  • Galaxy Evolution

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Research Output 2012 2019

Non-LTE analysis of K I in late-type stars

Reggiani, H., Amarsi, A. M., Lind, K., Barklem, P. S., Zatsarinny, O., Bartschat, K., Fursa, D. V., Bray, I., Spina, L. & Meléndez, J., 1 Jul 2019, In : Astronomy and Astrophysics. 627, 17 p., A177.

Research output: Contribution to journalArticleResearchpeer-review

Open Access
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The Li-age correlation: The Sun is unusually Li deficient for its age

Carlos, M., Meléndez, J., Spina, L., Dos Santos, L. A., Bedell, M., Ramirez, I., Asplund, M., Bean, J. L., Yong, D., Yana Galarza, J. & Alves-Brito, A., May 2019, In : Monthly Notices of the Royal Astronomical Society. 485, 3, p. 4052-4059 8 p.

Research output: Contribution to journalArticleResearchpeer-review

1 Citation (Scopus)

Thorium in solar twins: Implications for habitability in rocky planets

Botelho, R. B., Milone, A. C., Meléndez, J., Bedell, M., Spina, L., Asplund, M., dos Santos, L., Bean, J. L., Ramírez, I., Yong, D., Dreizler, S., Alves-Brito, A. & Yana Galarza, J., 11 Jan 2019, In : Monthly Notices of the Royal Astronomical Society. 482, 2, p. 1690-1700 11 p.

Research output: Contribution to journalArticleResearchpeer-review

3 Citations (Scopus)

Chemical Inhomogeneities in the Pleiades: Signatures of Rocky-forming Material in Stellar Atmospheres

Spina, L., Meléndez, J., Casey, A. R., Karakas, A. I. & Tucci-Maia, M., 20 Aug 2018, In : Astrophysical Journal. 863, 2, 6 p., 179.

Research output: Contribution to journalArticleResearchpeer-review

Open Access
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2 Citations (Scopus)

Gaia DR2 view of the Lupus V-VI clouds: The candidate diskless young stellar objects are mainly background contaminants

Manara, C. F., Prusti, T., Comeron, F., Mor, R., Alcalá, J. M., Antoja, T., Facchini, S., Fedele, D., Frasca, A., Jerabkova, T., Rosotti, G., Spezzi, L. & Spina, L., 1 Jul 2018, In : Astronomy and Astrophysics. 615, 5 p., L1.

Research output: Contribution to journalArticleResearchpeer-review

Open Access
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