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The 'VISTA Variables in the Vía Láctea eXtended (VVVX)' ESO Public Survey is a nearinfrared photometric sky survey that covers nearly 1700 deg2 towards the Galactic disc and bulge. It is well-suited to search for newopen clusters, hidden behind dust and gas. The pipeline processed and calibrated ...


Borissova, J.Ivanov, V.D.Lucas, P.W.Kurtev, R.Alonso-Garcia, J.Ramírez Alegría, S.Minniti, D.Froebrich, D.Hempel, M.Medina, N.Chené, A.-N.Kuhn, M.A.[New Galactic star clusters discovered in the disc area of the VVVX survey]New Galactic star clusters discovered in the disc area of the VVVX survey

We present the discovery of 816 high-amplitude infrared variable stars (ΔKs > 1 mag) in 119 deg2 of the Galactic mid-plane covered by the VISTA Variables in the Via Lactea (VVV) survey. Almost all are new discoveries and about 50 per cent are young stellar objects (YSOs). This provides further ev...


Contreras Peña, C.Lucas, P.W.Minniti, D.Kurtev, R.Stimson, W.Navarro Molina, C.Borissova, J.Kumar, M.S.N.Thompson, M.A.Gledhill, T.Terzi, R.Froebrich, D.Caratti o Garatti, A.[A population of eruptive variable protostars in VVV]A population of eruptive variable protostars in VVV

In a companion work (Paper I), we detected a large population of highly variable Young Stellar Objects (YSOs) in the Vista Variables in the Via Lactea (VVV) survey, typically with class I or flat spectrum spectral energy distributions and diverse light-curve types. Here we present infrared spectr...


Contreras Peña, C.Lucas, P.W.Kurtev, R.Minniti, D.Caratti o Garatti, A.Marocco, F.Thompson, M.A.Froebrich, D.Kumar, M.Stimson, W.Navarro Molina, C.Borissova, J.Gledhill, T.Terzi, R.[Infrared spectroscopy of eruptive variable protostars from VVV]Infrared spectroscopy of eruptive variable protostars from VVV

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