The VISTA Variables in the Vía Láctea (VVV) survey is an ESO Public Survey that is mapping the central region of the Milky Way, that we call the “bulge”, in near infrared light. It is also acquiring ~100 repeated exposure in the Ks band, so we can construct a movie of the sky.One of the key goals of the VVV Survey is to identify new variables stars, i.e., stars whose brightness changes periodically with time. Many of them are stars that expand and contract, as if they were breathing, such as RR Lyrae, Cepheids or Miras. Each of these stars breath (we say that they “pulsate”) only during a very specific phase of their evolution, corresponding to a very specific internal stratification that we understand and are able to model very well. Once we identify one of these variables, we can predict what is their real luminosity, their mass and their age.
https://vvvsurvey.org
Ongoing
2018
Not set
It uses ICTs to enhance our knowledge about the universe/galaxy.
Millennium Institute of Astrophysics
Chile — Academia
http://www.astrofisicamas.cl/en/
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ITU, Place des Nations, 1211 Geneva 20, Switzerland
