Long-term stellar variability in the Galactic Centre region

C. N. Molina, J. Borissova, M. Catelan, P. W. Lucas, N. Medina, C. Contreras Peña, R. Kurtev, D. Minniti

Resultado de la investigación: Contribución a una revistaArtículo

2 Citas (Scopus)

Resumen

We report the detection of variable stars within a 11.5 arcmin × 11.5 arcmin region near the Galactic Centre that includes the Arches and Quintuplet clusters, as revealed by the VISTA Variables in the Vía Láctea survey. There are 353 sources that show KS-band variability, of which the large majority (81 per cent) correspond to red giant stars, mostly in the asymptotic giant branch phase. We analyse a population of 52 red giants with long-term trends that cannot be classified into the typical pulsating star categories. Distances and extinctions are calculated for nine Mira variables, and we discuss the impact of the chosen extinction law on the derived distances. We also report the presence of 48 new identified young stellar object candidates in the region.

Idioma originalInglés
Páginas (desde-hasta)5567-5586
Número de páginas20
PublicaciónMonthly Notices of the Royal Astronomical Society
Volumen482
N.º4
DOI
EstadoPublicada - 1 feb 2019

Áreas temáticas de ASJC Scopus

  • Astronomía y astrofísica
  • Ciencias planetarias y espacial

Huella Profundice en los temas de investigación de 'Long-term stellar variability in the Galactic Centre region'. En conjunto forman una huella única.

  • Citar esto

    Molina, C. N., Borissova, J., Catelan, M., Lucas, P. W., Medina, N., Contreras Peña, C., Kurtev, R., & Minniti, D. (2019). Long-term stellar variability in the Galactic Centre region. Monthly Notices of the Royal Astronomical Society, 482(4), 5567-5586. https://doi.org/10.1093/mnras/sty3041