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Aims. The windows of low extinction in the Milky Way (MW) plane are rare but important because they enable us to place structural constraints on the opposite side of the Galaxy, which has hither to been done rarely. Methods. We use the near-infrared (near-IR) images of the VISTA Variables in the ...


Minniti, D.Saito, R.K.Gonzalez, O.A.Alonso-García, J.Rejkuba, M.Barbá, R.Irwin, M.Kammers, R.Lucas, P.W.Majaess, D.Valenti, E.[A new near-IR window of low extinction in the Galactic plane]A new near-IR window of low extinction in the Galactic plane

Deep near-IR images from the VISTA Variables in the Via Lactea (VVV) Survey were used to search for RR Lyrae stars in the Southern Galactic plane. A sizable sample of 404 RR Lyrae of type ab stars was identified across a thin slice of the fourth Galactic quadrant (295 degrees < l < 350 degrees, -...


Minniti, D.Dékány, I.Majaess, D.Palma, T.Pullen, J.Rejkuba, M.Alonso-García, J.Catelan, M.Contreras Ramos, R.Gonzalez, O.A.Hempel, M.Irwin, M.lLucas, P.W.Saito, R.K.Tissera, P.Valenti, E.Zoccali, M.[Characterization of the VVV Survey RR Lyrae Population across the Southern Galactic Plane]Characterization of the VVV Survey RR Lyrae Population across the Southern Galactic Plane

Context. Our view of the structure of the Milky Way and, in particular, its bulge is obscured by the intervening stars, dust, and gas in the disc. While great progress in understanding the bulge has been achieved with past and ongoing observations, the comparison of its global chemodynamical prop...


Gonzalez, O. A.Gadotti, D. A.Debattista, V. P.Rejkuba, M.Valenti, E.Zoccali, M.Coccato, L.Minniti, D.Ness, M.[Comparing the properties of the X-shaped bulges of NGC 4710 and the Milky Way with MUSE]Comparing the properties of the X-shaped bulges of NGC 4710 and the Milky Way with MUSE

Context. The inner regions of the Galaxy are severely affected by extinction, which limits our capability to study the stellar populations present there. The Vista Variables in the Vía Láctea (VVV) ESO Public Survey has observed this zone at near-infrared wavelengths where reddening is highly dim...


Alonso-García, J.Saito, R.K.Hempel, M.Minniti, D.Pullen, J.Catelan, M.Ramos, R.C.Cross, N.J.G.Gonzalez, O.A.Lucas, P.W.Palma, T.Valenti, E.Zoccali, M.[Milky Way demographics with the VVV survey: IV. PSF photometry from almost one billion stars in the Galactic bulge and adjacent southern disk]Milky Way demographics with the VVV survey: IV. PSF photometry from almost one billion stars in the Galactic bulge and adjacent southern disk

D'Orazi, V.Magurno, D.Bono, G.Matsunaga, N.Braga, V.F.Elgueta, S.S.Fukue, K.Hamano, S.Inno, L.Kobayashi, N.Kondo, S.Monelli, M.Nonino, M.Przybilla, N.Sameshima, H.Saviane, I.Taniguchi, D.Thevenin, F.Urbaneja-Perez, M.Watase, A.Arai, A.Bergemann, M.Buonanno, R.Dall'Ora, M.Da Silva, R.Fabrizio, M.Ferraro, I.Fiorentino, G.Francois, P.Gilmozzi, R.Iannicola, G.Ikeda, Y.Jian, M.Kawakita, H.Kudritzki, R.P.Lemasle, B.Marengo, M.Marinoni, S.Martínez-Vázquez, C.E.Minniti, D.Neeley, J.Otsubo, S.Prieto, J.L.Proxauf, B.Romaniello, M.Sanna, N.Sneden, C.Takenaka, K.Tsujimoto, T.Valenti, E.Yasui, C.Yoshikawa, T.Zoccali, M.[On the Chemical Abundances of Miras in Clusters: V1 in the Metal-rich Globular NGC 5927]On the Chemical Abundances of Miras in Clusters: V1 in the Metal-rich Globular NGC 5927

Braga, V.F.Stetson, P.B.Bono, G.Dall'Ora, M.Ferraro, I.Fiorentino, G.Iannicola, G.Marconi, M.Marengo, M.Monson, A.J.Neeley, J.Persson, S.E.Beaton, R.L.Buonanno, R.Calamida, A.Castellani, M.Carlo, E.D.Fabrizio, M.Freedman, W.L.Inno, L.Madore, B.F.Magurno, D.Marchetti, E.Marinoni, S.Marrese, P.Matsunaga, N.Minniti, D.Monelli, M.Nonino, M.Piersimoni, A.M.Pietrinferni, A.Prada-Moroni, P.Pulone, L.Stellingwerf, R.Tognelli, E.Walker, A.R.Valenti, E.Zoccali, M.[On the RR Lyrae Stars in Globulars. V. the Complete Near-infrared (JHK s) Census of ω Centauri RR Lyrae Variables]On the RR Lyrae Stars in Globulars. V. the Complete Near-infrared (JHK s) Census of ω Centauri RR Lyrae Variables

We report the discovery of an enigmatic large-amplitude (ΔKs >10.5 mag) transient event in near-IR data obtained by the VISTA Variables in the Via Lactea (VVV) ESO Public Survey. The object (designated VVV-WIT- 06) is located at R.A.=17:07:18.917, decl.=-39:06:26.45 (J2000), corresponding to Gala...


Minniti, D.Saito, R.K.Forster, F.Pignata, G.Ivanov, V.D.Lucas, P.W.Beamin, J.C.Borissova, J.Catelan, M.Gonzalez, O.A.Hempel, M.Hsiao, E.Kurtev, R.Majaess, D.Masetti, N.Morrell, N.I.Phillips, M.M.Pullen, J.B.Rejkuba, M.Smith, L.Surot, F.Valenti, E.Zoccali, M.[The Emergence of the Infrared Transient VVV-WIT-06]The Emergence of the Infrared Transient VVV-WIT-06

Deep near-IR images from the VISTA Variables in the V a L ctea (VVV) Survey were used to search for RR Lyrae stars within 100 arcmin from the Galactic Center. A large sample of 960 RR Lyrae of type ab (RRab) stars were discovered. A catalog is presented featuring the positions, magnitudes, colors...


Contreras Ramos, R.Minniti, D.Gran, F.Zoccali, M.Alonso-Garcia, J.Huijse, P.Navarro, M.G.Rojas-Arriagada, A.Valenti, E.[The VVV Survey RR Lyrae Population in the Galactic Center Region]The VVV Survey RR Lyrae Population in the Galactic Center Region

The Hubble Space Telescope/WFC3 multiband photometry spanning from the UV to the near-IR of four fields in the Galactic bulge, together with that for six template globular and open clusters, are used to photometrically tag the metallicity [Fe/H] of stars in these fields after proper-motion reject...


Renzini, A.Gennaro, M.Zoccali, M.Brown, T.M.Anderson, J.Minniti, D.Sahu, K.C.Valenti, E.Vandenberg, D.A.[The WFC3 Galactic Bulge Treasury Program: Relative Ages of Bulge Stars of High and Low Metallicity]The WFC3 Galactic Bulge Treasury Program: Relative Ages of Bulge Stars of High and Low Metallicity

Interstellar extinction toward the Galactic Center (GC) is large and significantly differential. Its reddening and dimming effects in red clump (RC) stars in the Galactic Bulge can be exploited to better constrain the extinction law toward the innermost Galaxy. By virtue of a deep and complete ca...


Alonso-García, J.Minniti, D.Catelan, M.Contreras Ramos, R.Gonzalez, O.A.Hempel, M.Lucas, P.W.Saito, R.K.Valenti, E.Zoccali, M.[Extinction ratios in the inner Galaxy as revealed by the VVV survey]Extinction ratios in the inner Galaxy as revealed by the VVV survey

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