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Article 2018-08

Autor: 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.

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 ...

Enlace original: http://repositorio.unab.cl/xmlui/handle/ria/10908

Repositorio Universidad Andrés Bello
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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
Article 2017-03

Autor: 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.l Lucas, P.W. Saito, R.K. Tissera, P. Valenti, E. Zoccali, M.

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, -...

Enlace original: http://repositorio.unab.cl/xmlui/handle/ria/4274

Repositorio Universidad Andrés Bello
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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.l ,  Lucas, 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
Article 2018-11

Autor: 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.

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...

Enlace original: http://repositorio.unab.cl/xmlui/handle/ria/11489

Repositorio Universidad Andrés Bello
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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
Article 2017-11

Autor: 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.

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...

Enlace original: http://repositorio.unab.cl/xmlui/handle/ria/5908

Repositorio Universidad Andrés Bello
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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
Article 2018

Autor: Da Silveira, C.R. Barbuy, B. Friaça, A.C.S. Hill, V. Zoccali, M. Rafelski, M. Gonzalez, O.A. Minniti, D. Renzini, A. Ortolani, S.

Context. Oxygen and zinc in the Galactic bulge are key elements for the understanding of the bulge chemical evolution. Oxygen-to-iron abundance ratios provide a most robust indicator of the star formation rate and chemical evolution of the bulge. Zinc is enhanced in metal-poor stars, behaving as ...

Enlace original: http://repositorio.unab.cl/xmlui/handle/ria/10564

Repositorio Universidad Andrés Bello
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Da Silveira, C.R. ,  Barbuy, B. ,  Friaça, A.C.S. ,  Hill, V. ,  Zoccali, M. ,  Rafelski, M. ,  Gonzalez, O.A. ,  Minniti, D. ,  Renzini, A. ,  Ortolani, S. ,  [Oxygen and zinc abundances in 417 Galactic bulge red giants] ,  Oxygen and zinc abundances in 417 Galactic bulge red giants
Article 2017-11

Autor: 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.

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...

Enlace original: http://repositorio.unab.cl/xmlui/handle/ria/5686

Repositorio Universidad Andrés Bello
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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
Article 2016

Autor: Gonzalez, O.A. Gadotti, D.A. Debattista, V.P. Rejkuba, M.de Valenti, E. Zoccali, M. Coccato, L. Minniti, D. Ness, M.

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...

Enlace original: http://repositorio.unab.cl/xmlui/handle/ria/836

Repositorio Universidad Andrés Bello
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Gonzalez, O.A. ,  Gadotti, D.A. ,  Debattista, V.P. ,  Rejkuba, M.de ,  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

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