Browsing by Author "Ivanov, V.D."

Now showing items 1-15 of 15

    • Discovery of a brown dwarf companion to the A3V star β Circini 

      Smith, Leigh; Lucas, P.W.; Peña, C. Contreras; Kurtev, R.; Marocco, Federico; Jones, H.R.A.; Beamin, J.C.; Napiwotzki, Ralf; Borissova, J.; Burningham, B.; Faherty, J.; Pinfield, D.J.; Gromadzki, M.; Ivanov, V.D.; Minniti, D.; Stimson, W.; Villanueva, V. (2015-12-21)
      We report the discovery of an L dwarf companion to the A3V star β Circini. VVV J151721.49−585131.5, or β Cir B, was identified in a proper motion and parallax catalogue of the VISTA Variables in the Vía Láctea survey as ...

    • The Magellanic Clouds as a Template for the Study of Stellar Populations and Galaxy Interactions 

      Cioni, M-R.L.; Bekki, K.; Clementini, G.; de Blok, W.J.G.; Emerson, J.P.; Evans, Chris J.; de Grijs, R.; Gibson, B. K.; Girardi, L.; Groenewegen, M.A.T.; Ivanov, V.D.; Leisy, P.; Marconi, M.; Mastropietro, C.; Moore, B.; Naylor, T.; Oliveira, J.M.; Ripepi, V.; van Loon, J. Th; Wilkinson, Mark; Wood, P.R. (2008-01)
      The Magellanic System represents one of the best places to study the formation and evolution of galaxies. Photometric surveys of various depths, areas and wavelengths have had a significant impact on our understanding of ...

    • Mercer 5: a probable new globular cluster in the Galactic bulge 

      Longmore, A.J.; Kurtev, R.; Lucas, P.W.; Froebrich, D.; de Grijs, R.; Ivanov, V.D.; Maccarone, T. J.; Borissova, J.; Ker, L. M. (2011-09)
      We present a detailed study of a dust-obscured Galactic star cluster Mercer 5 ([MCM2005b] 5) in an extremely crowded field in the Milky Way. Near-infrared (near-IR) photometry from United Kingdom Infrared Digital Sky Surveys ...

    • Optical and Infrared Spectroscopy of SN 1999ee and SN 1999ex 

      Hamuy, M.; Maza, J.; Pinto, P.A.; Phillips, M.M.; Suntzeff, N.B.; Blum, R.D.; Olsen, K.; Pinfield, D.J.; Ivanov, V.D.; Augusteijn, T.; Brillant, S.; Chadid, M.; Cuby, J-G.; Doublier, V.; Hainaut, O.R.; Le Floc'h, E.; Lidman, C.; Petr-Gotzens, M.G.; Pompei, E.; Vanzi, L. (2002)

    • VISTA Variables in the Via Lactea (VVV) : The public ESO near-IR variability survey of the Milky Way 

      Minniti, D.; Lucas, P.W.; Emerson, J.P.; Saito, R.K.; Hempel, M.; Pietrukowicz, P.; Ahumada, A.V.; Alonso, M.V.; Alonso-Garcia, J.; Arias, J.I.; Bandyopadhyay, R.M.; Barba, R.; Barbuy, B.; Bedin, L.R.; Bica, E.; Borissova, J.; Bronfman, L.; Carraro, G.; Catelan, M.; Claria, J. J.; Cross, N.; de Grijs, R.; Dekany, I.; Drew, J.E.; Farina, C.; Feinstein, C.; Fernandez Lajus, E.; Gamen, R.C.; Geisler, D.; Gieren, W.; Goldman, B.; Gonzalez, O. A.; Gunthardt, G.; Gurovich, S.; Hambly, N.C.; Irwin, M.J.; Ivanov, V.D.; Jordan, A.; Kerins, E.; Kinemuchi, K.; Kurtev, R.; Lopez-Corredoira, M.; Maccarone, T.; Masetti, N.; Merlo, D.; Messineo, M.; Mirabel, I.F.; Monaco, L.; Morelli, L.; Padilla, N.; Palma, T.; Parisi, M.C.; Pignata, G.; Rejkuba, M.; Roman-Lopes, A.; Sale, S. E.; Schreiber, M. R.; Schroder, A.C.; Smith, M.; Sodre Jr, L.; Soto, M.; Tamura, M.; Tappert, C.; Thompson, Mark; Toledo, I.; Zoccali, M.; Pietrzynski, G. (2010)
      We describe the public ESO near-IR variability survey (VVV) scanning the Milky Way bulge and an adjacent section of the mid-plane where star formation activity is high. The survey will take 1929 h of observations with the ...

    • The VMC survey - IX : Pilot study of the proper motion of stellar populations in the LMC from 2MASS and VISTA data 

      Cioni, M-R.L.; Giradi, L.; Moretti, M.I.; Piffl, T.; Ripepi, V.; Rubele, S.; Scholz, R.D.; Bekki, K.; Clementini, G.; Ivanov, V.D.; Oliveira, J.M.; van Loon, J. Th (2014-02)
      Proper motion (PM) studies are fundamental ingredients in the understanding of the orbital history of galaxies. Current measurements do not yet provide a satisfactory answer to the possible scenarios for the formation and ...

    • The VMC survey - VII : Reddening map of the 30 Doradus field and the structure of the cold interstellar medium 

      Tatton, B.; van Loon, J. Th; Cioni, M-R.L.; Clementini, G.; Emerson, J.P.; Girardi, L.; de Grijs, R.; Groenewegen, M.A.T.; Gullieuszik, M.; Ivanov, V.D.; Moretti, M.I.; Ripepi, V.; Rubele, S. (2013-06)
      The details of how galaxies have evolved over cosmological times are imprinted in their star formation history, chemical enrichment and morpho-kinematic structure. Parameters behind these, such as effective temperature and ...

    • The VMC survey - VIII : First results for anomalous Cepheids 

      Ripepi, V.; Marconi, M.; Moretti, M.I.; Clementini, G.; Cioni, M-R.L.; de Grijs, R.; Emerson, J.P.; Groenewegen, M.A.T.; Ivanov, V.D.; Oliveira, J.M. (2014-01-21)
      The VISTA near-infrared YJKs survey of the Magellanic Clouds System (VMC, PI M.-R. L. Cioni) is collecting deep Ks-band time-series photometry of the pulsating variable stars hosted in the system formed by the two Magellanic ...

    • The VMC survey - X : The technique of using Cepheids, RR Lyrae stars and binaries to probe the Magellanic system structure 

      Moretti, M.I.; Clementini, G.; Tatiana, Muraveva; Ripepi, V.; Marquette, J-B.; Cioni, M-R.L.; Marconi, M.; Girardi, L.; Rubele, S.; Tisserand, P.; de Grijs, R.; Groenewegen, M.A.T.; Guandalini, Roald; Ivanov, V.D.; van Loon, J. Th (2014-01)
      The VISTA near-infrared Y, J, Ks survey of the Magellanic System (VMC) survey is obtaining multi-epoch photometry in the Ks band of the Magellanic System down to a limiting magnitude of Ks~19.3 for individual epoch data. ...

    • The VMC survey I. Strategy and first data 

      Cioni, M-R.L.; Clementini, G.; Girardi, L.; Guandalini, R.; Gullieuszik, M.; Miszalski, B.; Moretti, M.I.; Ripepi, V.; Rubele, S.; Bagheri, G.; Bekki, K.; Cross, N.J.G.; de Blok, W.J.G.; de Grijs, R.; Emerson, J.P.; Evans, C.J.; Gibson, B.; Gonzales-Solares, E.; Groenewegen, M.A.T.; Irwin, M.J.; Ivanov, V.D.; Lewis, J.; Marconi, M.; Marquette, J-B.; Mastropietro, C.; Moore, B.; Napiwotzki, R.; Naylor, T.; Oliveira, J.M.; Read, M.; Sutorius, E.; van Loon, J.T.; Wilkinson, M.I.; Wood, P.R. (2011-03)
      Context: The new VISual and Infrared Telescope for Astronomy (VISTA) has started operations. Over its first five years it will be collecting data for six public surveys, one of which is the near-infrared YJK(s) VISTA survey ...

    • The VMC survey III : Mass-loss rates and luminosities of LMC AGB stars 

      Gullieuszik, M.; Groenewegen, M.A.T.; Cioni, M-R.L.; de Grijs, R.; van Loon, J. Th; Girardi, L.; Ivanov, V.D.; Oliveira, J.M.; Emerson, J.P.; Guandalini, R. (2012-01)
      Context. Asymptotic giant branch (AGB) stars are major contributors to both the chemical enrichment of the interstellar medium and the integrated light of galaxies. Despite its importance, the AGB is one of the least ...

    • The VMC survey VI : Quasars behind the Magellanic system 

      Cioni, M-R.L.; Kamath, D.; Wood, P.R.; Rubele, S.; Van Loon, J.T.; Emerson, J.P.; Gibson, B. K.; Groenewegen, M.A.T.; Ivanov, V.D.; Miszalski, B.; Ripepi, V. (2013-01)
      Context. The number and spatial distribution of confirmed quasi-stellar objects (QSOs) behind the Magellanic system is limited. This undermines their use as astrometric reference objects for different types of studies. ...

    • The VMC survey: IV : the LMC star formation history and disk geometry from four VMC tiles 

      Rubele, S.; Kerber, L.O.; Girardi, L.; Cioni, M-R.L.; Marigo, P.; Zaggia, S.; Bekki, K.; de Grijs, R.; Emerson, J.P.; Groenewegen, M.A.T.; Gullieuszik, M.; Ivanov, V.D.; Miszalski, Brent; Oliveira, J.M.; Tatton, B.; van Loon, J.T. (2012-01)
      We derive the star formation history (SFH) for several regions of the Large Magellanic Cloud (LMC), using deep near-infrared data from the VISTA near-infrared YJK s survey of the Magellanic system (VMC). The regions include ...

    • VVV DR1: The first data release of the Milky Way bulge and southern plane from the near-infrared ESO public survey VISTA variables in the Vía Láctea 

      Saito, R.K.; Hempel, M.; Minniti, D.; Lucas, P.W.; Rejkuba, M.; Toledo, I.; Gonzalez, O. A.; Alonso-García, J.; Irwin, M.J.; Gonzalez-Solares, E.; Hodgkin, S.T.; Lewis, J.R.; Cross, N.; Ivanov, V.D.; Kerins, E.; Emerson, J.P.; Soto, M.; Amôres, E.B.; Gurovich, S.; Dékány, I.; Angeloni, R.; Beamin, J.C.; Catelan, M.; Padilla, N.; Zoccali, M.; Pietrukowicz, P.; Moni Bidin, C.; Mauro, F.; Geisler, D.; Folkes, S.L.; Sale, S.E.; Borissova, J.; Kurtev, R.; Ahumada, A.V.; Alonso, M.V.; Adamson, A.; Arias, J.I.; Bandyopadhyay, R.M.; Barbá, R.H.; Barbuy, B.; Baume, G. L.; Bedin, L.R.; Bellini, A.; Benjamin, R.; Bica, E.; Bonatto, C.; Bronfman, L.; Carraro, G.; Chenè, A.N.; Clariá, J.J.; Clarke, J.R.A.; Contreras, C.; Corvillón, A.; de Grijs, R.; Dias, B.; Drew, J.E.; Fariña, C.; Feinstein, C.; Fernández-Lajús, E.; Gamen, R.C.; Gieren, W.; Goldman, B.; González-Fernández, C.; Grand, R. J. J.; Gunthardt, G.; Hambly, N.C.; Hanson, M. M.; Helminiak, K.G.; Hoare, M.G.; Huckvale, L.; Jordán, A.; Kinemuchi, K.; Longmore, A.; López-Corredoira, M.; Maccarone, T.; Majaess, D.; Martín, E.L.; Masetti, N.; Mennickent, R.E.; Mirabel, I.F.; Monaco, L.; Morelli, L.; Motta, V.; Palma, T.; Parisi, M.C.; Parker, Q.; Peñaloza, F.; Pietrzyski, G.; Pignata, G.; Popescu, B.; Read, M. A.; Rojas, A.; Roman-Lopes, A.; Ruiz, M.T.; Saviane, I.; Schreiber, M. R.; Schröder, A. C.; Sharma, S.; Smith, M.D.; Sodré, L.; Stead, J.; Stephens, A. W.; Tamura, M.; Tappert, C.; Thompson, Mark; Valenti, E.; Vanzi, L.; Walton, N.A.; Weidmann, W.; Zijlstra, A. (2012)
      Context. The ESO public survey VISTA variables in the Vía Láctea (VVV) started in 2010. VVV targets 562 sq. deg in the Galactic bulge and an adjacent plane region and is expected to run for about five years. Aims. We ...

    • VVV High Proper Motion Survey 

      Gromadzki, M.; Kurtev, R.; Folkes, S.; Beamin, J. C.; Pena Ramirez, K.; Borissova, J.; Pinfield, D.J.; Jones, H.R.A.; Minniti, D.; Ivanov, V.D. (2013-10-15)
      Here we present survey of proper motion stars towards the Galactic Bulge and an adjacent plane region base on VISTA-VVV data. The searching method based on cross-matching photometric Ks-band CASU catalogs. The most interesting ...