Centro de Astrobiología

Breaking the Blend: A multi-tracer kinematic decomposition method for IFS data applied to disentangling the AGN outflow and circumnuclear ring in NGC 5728 with JWST

Abstract Integral field spectroscopy (IFS) of the central kiloparsecs of active galactic nuclei (AGN) reveals a mixture of spatially coincident emission from star-formation and AGN feedback exciting the interstellar medium. Disentangling these components remains a challenge, as m...

Stellar masses of optically dark galaxies: uncertainty introduced by the attenuation law and star-formation histories

Abstract Recent studies using JWST have suggested that some high-redshift galaxies may be ultra-massive, thereby challenging standard models of early galaxy formation. We analyse the stellar masses using different modelling assumptions and in conjunction with new data of three ga...

From rule-taking to rule-making chemistry: a minimal population–environment feedback model

A key step towards life is the shift from chemistry that merely adapts to its surroundings to chemistry that actively reshapes the local physicochemical conditions that rule its own replication. Using a coupled population-environment feedback model, we identify the conditions und...

Assessing the Climate and Habitability of Tidally Locked Rocky Exoplanets

Tidally locked exoplanets orbiting M dwarf stars are prime targets in the search for habitable worlds, yet their complex climate dynamics challenge conventional models of habitability. We homogeneously estimated the liquid–water habitability of exoplanets with the highest up-to-d...

Adaptive thermogenesis and fermentation as survival strategies of vegetative cells of Bacillus subtilis under simulated Martian stressors

<title>Abstract</title> Microbial responses to Mars‑analog environments are key to understanding the limits of life and improving life‑detection strategies. Here, we investigated the survival and physiological adaptation of <italic>Bacillus subtilis</italic> exposed for five sols...

Synthesis of mineral-organic hybrid materials under dynamic prebiotic conditions

Abstract The increasing of molecular complexity must be understood as a planetary phenomenon where prebiotic chemistry and geological settings converge. In this scene, HCN chemistry may have played a crucial role. In this study, we demonstrate that alkaline water aerosols, cyanid...

Inventories of Rich Carbon-Chain Chemistry in Prestellar and Starless Cores in the Perseus Molecular Cloud

Abstract Carbon-chain molecules serve as an important reservoir of reactive organic matter that will eventually be incorporated into protoplanetary disks, planets, and cometary material. Prestellar and starless cores are composed of cold (~ 10 K) and dense (~ 105 cm−3) clumps of...

Characterization and treatment of polymicrobial biofilms in prosthetic joint infections

Abstract Prosthetic joint infections are complex and associated with high economic and social costs. Polymicrobial cases remain poorly understood, particularly regarding bacterial interactions and antibiotic response within mixed-species biofilms. We introduce two approaches for...