Líneas de investigación: La Vía Láctea y el Grupo Local (MWLG)

La Vía Láctea y el Grupo Local (MWLG)
  • Publicación
    AGB stars in the SMC: evolution and dust properties based on Spitzer observations
    We study the population of asymptotic giant branch (AGB) stars in the Small Magellanic Cloud (SMC) by means of full evolutionary models of stars of mass 1 M⊙ ≤...
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    AGC 226178 and NGVS 3543: Two Deceptive Dwarfs toward Virgo
    The two sources AGC 226178 and NGVS 3543, an extremely faint, clumpy, blue stellar system and a low surface brightness dwarf spheroidal, are adjacent systems in...
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    Age and helium content of the open cluster NGC 6791 from multiple eclipsing binary members. II. Age dependencies and new insights
    Context. Models of stellar structure and evolution can be constrained by measuring accurate parameters of detached eclipsing binaries in open clusters. Multiple...
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    Age-resolved chemistry of red giants in the solar neighbourhood
    In the age of high-resolution spectroscopic stellar surveys of the Milky Way, the number of stars with detailed abundances of multiple elements is rapidly...
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    Alone on a wide wide sea. The origin of SECCO 1, an isolated star-forming gas cloud in the Virgo cluster*†‡
    SECCO 1 is an extremely dark, low-mass (M⋆ ≃ 105 M⊙), star-forming stellar system lying in the low-velocity cloud (LVC) substructure of the Virgo cluster of...
  • Publicación
    Alternative Strategies to Solve the Stellar Atmosphere Problem
    At the heart of the computation of model atmospheres there is the so-called Stellar Atmosphere Problem, which consists of the self-consistent solution of the...
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    Amino acids in comets and meteorites: stability under gamma radiation and preservation of the enantiomeric excess
    Amino acids in Solar system bodies may have played a key role in the chemistry that led to the origin of life on Earth. We present laboratory studies testing...
  • Publicación
    Ammonia-methane ratios from H-band near-infrared spectra of late-T and Y dwarfs
    Aims: Our goals are to investigate the relative absorption strengths of ammonia and methane using low-resolution H-band (1.5−1.7 microns) spectra obtained in...
  • Publicación
    An eclipsing 47 min double white dwarf binary at 400 pc
    We present the discovery of the eclipsing double white dwarf (WD) binary WDJ 022558.21-692025.38 that has an orbital period of 47.19 min. Following...