Browsing by Author "Catelan, M."

Now showing items 1-15 of 15

    • Large amplitude periodic outbursts and long period variables in the VVV VIRAC2-$β$ database 

      Guo, Zhen; Lucas, P. W.; Smith, L. C.; Clarke, C.; Peña, C. Contreras; Bayo, A.; Briceño, C.; Elias, J.; Kurtev, R. G.; Borissova, J.; Alonso-García, J.; Minniti, D.; Catelan, M.; Nikzat, F.; Morris, C.; Miller, N. (2022-03-21)
      The VISTA Variables in the Via Lactea (VVV) survey obtained near-infrared photometry toward the Galactic bulge and the southern disc plane for a decade (2010 - 2019). We designed a modified Lomb-Scargle method to search ...

    • Long-term Stellar Variability in the Galactic Centre Region 

      Molina, C. Navarro; Borissova, J.; Catelan, M.; Lucas, P. W.; Medina, N.; Pena, C. Contreras; Kurtev, R.; Minniti, D. (2019-02)
      We report the detection of variable stars within a 11.5' x 11.5' region near the Galactic centre (GC) that includes the Arches and Quintuplet clusters, as revealed by the VISTA Variables in the Via Lactea (VVV) survey. ...

    • Milky Way demographics with the VVV survey III : Evidence for a great dark lane in the 157 million star bulge color-magnitude diagram 

      Minniti, D.; Saito, R.K.; Gonzalez, O. A.; Zoccali, M.; Rejkuba, M.; Alonso-Garciá, J.; Benjamin, R.; Catelan, M.; Dékány, I.; Emerson, J.P.; Hempel, M.; Lucas, P.W.; Schultheis, M. (2014-11)
      The new generation of IR surveys are revealing and quantifying Galactic features that provide an improved 3D interpretation of our own Galaxy. We present an analysis of the global distribution of dust clouds in the bulge ...

    • The most variable VVV sources: eruptive protostars, dipping giants in the Nuclear Disc and others 

      Lucas, P. W.; Smith, L. C.; Guo, Z.; Peña, C. Contreras; Minniti, D.; Miller, N.; Alonso-García, Javier; Catelan, M.; Borissova, J.; Saito, R. K.; Kurtev, R.; Navarro, M. G.; Morris, C.; Muthu, H.; Froebrich, D.; Ivanov, V. D.; Bayo, A.; Garatti, A. Caratti o; Sanders, J. L. (2024-02-01)
      We have performed a comprehensive search of a VISTA Variables in the Via Lactea (VVV) data base of 9.5 yr light curves for variable sources with ΔKs ≥ 4 mag, aiming to provide a large sample of high amplitude eruptive young ...

    • New Galactic star clusters discovered in the VVV survey 

      Borissova, J.; Bonatto, C.; Kurtev, R.; Clarke, J. R. A.; Penaloza, F.; Sale, S. E.; Minniti, D.; Alonso-Garcia, J.; Artigau, E.; Barba, R.; Bica, E.; Baume, G. L.; Catelan, M.; Chene, A. N.; Dias, B.; Folkes, S. L.; Froebrich, D.; Geisler, D.; de Grijs, R.; Hanson, M. M.; Hempel, M.; Ivanov, V. D.; Kumar, M. S. N.; Lucas, P.W.; Mauro, F.; Moni Bidin, C.; Rejkuba, M.; Saito, R. K.; Tamura, M.; Toledo, I. (2011-08)
      Context. VISTA Variables in the Via Lactea (VVV) is one of the six ESO Public Surveys operating on the new 4-m Visible and Infrared Survey Telescope for Astronomy (VISTA). VVV is scanning the Milky Way bulge and an adjacent ...

    • New galactic star clusters discovered in the VVV survey : Candidates projected on the inner disk and bulge 

      Borissova, J.; Chené, A. N.; Ramírez Alegría, S.; Sharma, S.; Clarke, J. R. A.; Kurtev, R.; Negueruela, I.; Marco, A.; Amigo, P.; Minniti, D.; Bica, E.; Bonatto, C.; Catelan, M.; Fierro, C.; Geisler, D.; Gromadzki, M.; Hempel, M.; Hanson, M. M.; Ivanov, V. D.; Lucas, P.W.; Majaess, D.; Moni Bidin, C.; Popescu, B.; Saito, R.K. (2014-09)
      Context. VISTA Variables in the Vía Láctea (VVV) is one of six ESO Public Surveys using the 4 meter Visible and Infrared Survey Telescope for Astronomy (VISTA). The VVV survey covers the Milky Way bulge and an adjacent ...

    • Spectroscopic confirmation of high-amplitude eruptive YSOs and dipping giants from the VVV survey 

      Guo, Zhen; Lucas, P. W.; Kurtev, R.; Borissova, J.; Peña, C. Contreras; Yurchenko, S. N.; Smith, L. C.; Minniti, D.; Saito, R. K.; Bayo, A.; Catelan, M.; Alonso-García, Javier; Garatti, A. Caratti o; Morris, C.; Froebrich, D.; Tennyson, J.; Maucó, K.; Aguayo, A.; Miller, N.; Muthu, H. D. S. (2024-02-01)
      During the pre-main-sequence (pre-MS) evolution stage of a star, significant amounts of stellar mass are accreted during episodic accretion events, such as multidecade FUor-type outbursts. Here, we present a near-infrared ...

    • Stellar variability in the VVV survey : Overview and first results 

      Catelan, M.; Minniti, D.; Lucas, P.W.; Dékány, I.; Saito, R. K.; Angeloni, R.; Alonso-García, J.; Hempel, M.; Hełminiak, K.; Jordán, A.; Ramos, R. Contreras; Navarrete, C.; Beamín, J. C.; Rojas, A. F.; Gran, F.; Lopes, C. E Ferreira; Peña, C. Contreras; Kerins, E.; Huckvale, L.; Rejkuba, M.; Cohen, R.; Mauro, F.; Borissova, J.; Amigo, P.; Eyheramendy, S.; Pichara, K.; Espinoza, N.; Navarro, C.; Hajdu, G.; Espinoza, D. N Calderón; Muro, G. A.; Andrews, H.; Motta, V.; Kurtev, R.; Emerson, J.P.; Bidin, C. Moni; Chené, A.-N. (Cambridge University Press, 2014-03-03)
      The Vista Variables in the Vía Láctea (VVV) ESO Public Survey is an ongoing time-series, near-infrared (IR) survey of the Galactic bulge and an adjacent portion of the inner disk, covering 562 square degrees of the sky, ...

    • Three galactic globular cluster candidates 

      Moni Bidin, C.; Mauro, F.; Geisler, D.; Chené, A.-N.; Minniti, D.; Catelan, M.; Hempel, M.; Valcarce, A.A.R.; Alonso-García, J.; Zoccali, M.; Valenti, E.; Carraro, G.; Valcarce, A.A.R.; Borissova, J.; Chené, A.-N.; Kurtev, R.G.; Lucas, P.W. (2011-10-27)
      Context. The census of Galactic globular clusters (GCs) is still incomplete, and about ten new objects are supposed to await discovery, hidden behind the crowded and reddened regions of the Galactic bulge and disk. Aims. ...

    • Variable Stars in the Quintuplet stellar cluster with the VVV Survey 

      Molina, C. Navarro; Borissova, J.; Catelan, M.; Alonso-García, J.; Kerins, E.; Kurtev, R.; Lucas, P. W.; Medina, N.; Minniti, D.; Dékány, I. (2016-10-21)
      The Quintuplet cluster is one of the most massive star clusters in the Milky Way, situated very close to the Galactic center. We present a new search for variable stars in the vicinity of the cluster, using the five-year ...

    • 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 ...

    • 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 ...

    • The VVV Infrared Variability Catalog (VIVA-I) 

      Lopes, C. E. Ferreira; Cross, N. J. G.; Catelan, M.; Minniti, D.; Hempel, M.; Lucas, P. W.; Angeloni, R.; Jablonsky, F.; Braga, V. F.; Leao, I. C.; Herpich, F. R.; Alonso-Garcia, J.; Papageorgiou, A.; Pichara, K.; Saito, R. K.; Bradley, A.; Beamin, J. C.; Cortes, C.; Medeiros, J. R. De; Russell, Christopher M. P. (2020-08)
      Thanks to the VISTA Variables in the Via Lactea (VVV) ESO Public Survey it is now possible to explore a large number of objects in those regions. This paper addresses the variability analysis of all VVV point sources having ...

    • VVV-WIT-01: highly obscured classical nova or protostellar collision? 

      Lucas, P. W.; Minniti, D.; Kamble, A.; Kaplan, D. L.; Cross, N.; Dekany, I.; Ivanov, V. D.; Kurtev, R.; Saito, R. K.; Smith, L. C.; Catelan, M.; Masetti, N.; Toledo, I.; Hempel, M.; Thompson, M. A.; Peña, C. Contreras; Forbrich, J.; Krause, M.; Dale, J.; Borissova, J.; Emerson, J.P. (2020-03)
      A search of the first Data Release of the VISTA Variables in the Via Lactea (VVV) Survey discovered the exceptionally red transient VVV-WIT-01 (H-Ks=5.2). It peaked before March 2010, then faded by ~9.5 mag over the following ...

    • Young Stellar Clusters Containing Massive Young Stellar Objects in the VVV Survey 

      Borissova, J.; Alegría, S. Ramírez; 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.; Peña, C. Contreras; Catelan, M.; Decany, I.; Thompson, M. A.; Morales, E. F. E.; Amigo, P. (2016-09-06)
      The purpose of this research is to study the connection of 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 ...