INVESTIGADORES
LARES HARBIN LATORRE Marcelo
congresos y reuniones científicas
Título:
The brightest group galaxies and their large-scale environment
Autor/es:
LUPARELLO, HELIANA; LARES, MARCELO; PAZ, DANTE; YARYURA, C. YAMILA; GARCIA LAMBAS, DIEGO; PADILLA, NELSON
Lugar:
Córdoba
Reunión:
Congreso; Reunión Anual de la Asociación Argentina de Astronomía; 2014
Institución organizadora:
Asociación Argentina de Astronomía
Resumen:
We use a sample of galaxy groups in SDSS data to study their brightest galaxies (BGG), distinguishing groups according to their large scale environment. The statistical properties of the BGG depend on the surrounding environment on large scales, characterized by the high density peaks within superstructures. We also nd that the colors and star formation activity of the BGG hosted by groups in superstructures are di erent, with statistical signicance, from the corresponding properties of BGG
hosted by groups elsewhere. Moreover, this signal is strongly dominated by disk-type galaxies. The results reveal connections between the large scale environment and the accretion process onto the brightest group galaxies.
