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Rodríguez, DavidDuchene, GaspardTom, HenryKennedy, GrantMatthews, BrendaGreaves, JaneButner, Harold[Stellar multiplicity and debris discs: an unbiased sample]

The enigmatic near-infrared transient VVV-WIT-06 underwent a large-amplitude eruption of unclear origin in 2013 July. Based on its light curve properties and late-time post-outburst spectra, various possibilities have been proposed in the literature for the origin of the object, namely a Type I s...


Banerjee, D.P.K.Hsiao, E.Y.Diamond, T.Galbany, L.Morrell, N.Minniti, D.Kuncarayakti, H.Mattila, S.Harmanen, J.[Unraveling the Infrared Transient VVV-WIT-06: The Case for the Origin as a Classical Nova]Unraveling the Infrared Transient VVV-WIT-06: The Case for the Origin as a Classical Nova

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 new theoretical period-luminosity-metallicity (PLZ) relations for RR Lyræ stars (RRLs) at Spitzer and WISE wavelengths. The PLZ relations were derived using nonlinear, time-dependent convective hydrodynamical models for a broad range of metal abundances (Z = 0.0001-0.0198). In deriving...


Neeley, J.R.Marengo, M.Bono, G.Braga, V.F.Dall'ora, M.Magurno, D.Marconi, M.Trueba, N.Tognelli, E.Moroni, P.G.P.Beaton, R.L.Freedman, W.L.Madore, B.F.Monson, A.J.Scowcroft, V.Seibert, M.Stetson, P.B.[On a New Theoretical Framework for RR Lyrae Stars. II. Mid-infrared Period-Luminosity-Metallicity Relations]On a New Theoretical Framework for RR Lyrae Stars. II. Mid-infrared Period-Luminosity-Metallicity Relations

The purpose of this research is to study the connections of the global properties of eight young stellar clusters projected in the Vista Variables in the Via Lactea (VVV) ESO Large Public Survey disk area and their young stellar object (YSO) populations. The analysis is based on the combination o...


Borissova, J.Ramírez Alegría, S.Alonso, J.Lucas, P. W.Kurtev, R.Medina, N.Navarro, C.Kuhn, M.Gromadzki, M.Retamales, G.Fernandez, M. A.Agurto-Gangas, C.Chené, A.-N.Minniti, D.Contreras Pena, C.Catelan, M.Decany, I.Thompson, M. A.Morales, E. F. E.Amigo, P.[YOUNG STELLAR CLUSTERS CONTAINING MASSIVE YOUNG STELLAR OBJECTS IN THE VVV SURVEY]YOUNG STELLAR CLUSTERS CONTAINING MASSIVE YOUNG STELLAR OBJECTS IN THE VVV 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

We present wide-field JHKS photometry of 16 Galactic globular clusters located towards the Galactic bulge, calibrated on the Two Micron All-Sky Survey photometric system. Differential reddening corrections and statistical field star decontamination are employed for all of these clusters before fi...


Cohen, R.E.Bidin, C.M.Mauro, F.Bonatto, C.Geisler, D.[Near-infrared photometry of globular clusters towards the Galactic bulge: Observations and photometric metallicity indicators]Near-infrared photometry of globular clusters towards the Galactic bulge: Observations and photometric metallicity indicators

We present a multiwavelength study of the Galactic luminous blue variable HR Carinae, based on new high-resolution mid-infrared (IR) and radio images obtained with the Very Large Telescope (VLT) and the Australia Telescope Compact Array (ATCA), which have been complemented by far-infrared Hersche...


Buemi, C.S.Trigilio, C.Leto, P.Umana, G.Ingallinera, A.Cavallaro, F.Cerrigone, L.Agliozzo, C.Bufano, F.Riggi, S.Molinari, S.Schillirò, F.[Exploring the multifaceted circumstellar environment of the luminous blue variable HR Carinae]Exploring the multifaceted circumstellar environment of the luminous blue variable HR Carinae

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

Context. The VISTA Variables in the Vía Láctea (VVV) is a near-IR time-domain survey of the Galactic bulge and southern plane. One of the main goals of this survey is to reveal the 3D structure of the Milky Way through their variable stars. In particular, enormous numbers of RR Lyrae stars have b...


Gran, F.Minniti, D.Saito, R. K.Zoccali, M.Gonzalez, O. A.Navarrete, C.Catelan, M.Contreras Ramos, R.Elorrieta, F.Eyheramendy, S.Jordán, A.[Mapping the outer bulge with RRab stars from the VVV Survey]Mapping the outer bulge with RRab stars from the VVV Survey

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