V
Valentin D. Ivanov
Researcher at European Southern Observatory
Publications - 353
Citations - 9856
Valentin D. Ivanov is an academic researcher from European Southern Observatory. The author has contributed to research in topics: Galaxy & Stars. The author has an hindex of 48, co-authored 346 publications receiving 9003 citations. Previous affiliations of Valentin D. Ivanov include University of Hawaii & University of Arizona.
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Journal ArticleDOI
VISTA Variables in the Via Lactea (VVV): The public ESO near-IR variability survey of the Milky Way
Dante Minniti,Philip W. Lucas,Jim Emerson,R. K. Saito,Maren Hempel,P. Pietrukowicz,A. V. Ahumada,A. V. Ahumada,M. V. Alonso,Javier Alonso-García,Julia Ines Arias,Reba M. Bandyopadhyay,Rodolfo H. Barbá,Beatriz Barbuy,Luigi R. Bedin,Eduardo Luiz Damiani Bica,Jura Borissova,Leonardo Bronfman,Giovanni Carraro,Márcio Catelan,Juan J. Clariá,Nicholas Cross,R. de Grijs,R. de Grijs,I. Dékány,Janet E. Drew,Janet E. Drew,C. Fariña,Carlos Feinstein,E. Fernández Lajús,Roberto Claudio Gamen,Doug Geisler,Wolfgang Gieren,Bertrand Goldman,Oscar A. Gonzalez,G. Gunthardt,Sebastián Gurovich,Nigel Hambly,Mike Irwin,Valentin D. Ivanov,Andrés Jordán,Eamonn Kerins,Karen Kinemuchi,Karen Kinemuchi,R. Kurtev,Martin Lopez-Corredoira,Thomas J. Maccarone,N. Masetti,David Merlo,M. Messineo,M. Messineo,I. F. Mirabel,Lorenzo Monaco,Lorenzo Morelli,Nelson Padilla,T. Palma,M. C. Parisi,Giusto Pignata,Marina Rejkuba,Alexandre Roman-Lopes,Stuart E. Sale,Matthias R. Schreiber,A. C. Schröder,A. C. Schröder,Michael D. Smith,Laerte Sodré,M. Soto,Motohide Tamura,C. Tappert,Mark Thompson,Ignacio Toledo,Manuela Zoccali,Grzegorz Pietrzyński +72 more
TL;DR: In this article, the authors proposed a method to solve the problem of single-input single-output (SISO) communication in the context of artificial neural networks (ANNs).
Journal ArticleDOI
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 via lactea
R. K. Saito,Maren Hempel,Dante Minniti,Dante Minniti,Philip W. Lucas,Marina Rejkuba,Ignacio Toledo,Oscar A. Gonzalez,Javier Alonso-García,Mike Irwin,Eduardo Gonzalez-Solares,Simon Hodgkin,James R. Lewis,Nicholas Cross,Valentin D. Ivanov,Eamonn Kerins,Jim Emerson,M. Soto,E. B. Amôres,Sebastián Gurovich,I. Dékány,R. Angeloni,Juan Carlos Beamin,Márcio Catelan,Nelson Padilla,Manuela Zoccali,Manuela Zoccali,P. Pietrukowicz,C. Moni Bidin,Francesco Mauro,Doug Geisler,S. L. Folkes,Stuart E. Sale,Stuart E. Sale,Jura Borissova,Radostin Kurtev,Andrea Veronica Ahumada,Andrea Veronica Ahumada,M. V. Alonso,M. V. Alonso,A. Adamson,Julia Ines Arias,Reba M. Bandyopadhyay,Rodolfo H. Barbá,Rodolfo H. Barbá,Beatriz Barbuy,Gustavo Baume,Luigi R. Bedin,Andrea Bellini,Robert A. Benjamin,Eduardo Luiz Damiani Bica,Charles Jose Bonatto,Leonardo Bronfman,Giovanni Carraro,André-Nicolas Chené,André-Nicolas Chené,Juan J. Clariá,J. R. A. Clarke,Carlos Contreras,A. Corvillon,R. de Grijs,R. de Grijs,Bruno Dias,Janet E. Drew,C. Farina,Carlos Feinstein,E. Fernández-Lajús,Roberto Claudio Gamen,Wolfgang Gieren,Bertrand Goldman,Carlos González-Fernández,R. J. J. Grand,G. Gunthardt,Nigel Hambly,Margaret M. Hanson,Krzysztof G. Hełminiak,Melvin G. Hoare,L. Huckvale,Andrés Jordán,Karen Kinemuchi,A. Longmore,Martin Lopez-Corredoira,Martin Lopez-Corredoira,Thomas J. Maccarone,Daniel J. Majaess,Eric Martin,N. Masetti,Ronald E. Mennickent,I. F. Mirabel,Lorenzo Monaco,Lorenzo Morelli,Veronica Motta,T. Palma,M. C. Parisi,Quentin A. Parker,Quentin A. Parker,F. Peñaloza,Grzegorz Pietrzyński,Grzegorz Pietrzyński,Giuliano Pignata,Bogdan Popescu,Mike Read,A. F. Rojas,Alexandre Roman-Lopes,Maria Teresa Ruiz,Ivo Saviane,Matthias R. Schreiber,A. C. Schröder,Saurabh Sharma,Saurabh Sharma,Michael D. Smith,Laerte Sodré,Joseph J. Stead,Andrew W. Stephens,Motohide Tamura,C. Tappert,Mark Thompson,Elena Valenti,Leonardo Vanzi,Nicholas A. Walton,W. A. Weidmann,Albert A. Zijlstra +121 more
TL;DR: The ESO VISTA public survey VISTA variables in the V�a L�ctea (VVV) started in 2010 and is expected to run for about five years.
Journal ArticleDOI
The VMC Survey - I. Strategy and First Data
Maria-Rosa L. Cioni,Maria-Rosa L. Cioni,Gisella Clementini,Léo Girardi,R. Guandalini,Marco Gullieuszik,Brent Miszalski,M. I. Moretti,Vincenzo Ripepi,Stefano Rubele,G. Bagheri,Kenji Bekki,Nicholas Cross,W. J. G. de Blok,R. de Grijs,Jim Emerson,Chris Evans,Brad K. Gibson,E. Gonzales-Solares,Martin Groenewegen,Mike Irwin,Valentin D. Ivanov,James R. Lewis,Marcella Marconi,J. B. Marquette,C. Mastropietro,Ben Moore,Ralf Napiwotzki,Tim Naylor,Joana M. Oliveira,Mike Read,Eckhard Sutorius,J. Th. van Loon,Mark I. Wilkinson,Peter R. Wood +34 more
TL;DR: The first science results, aimed at assessing the scientific quality of the VMC data, include an overview of the distribution of stars in colour-magnitude and colour-colour diagrams, the detection of planetary nebulae and stellar clusters, and the Ks band light-curves of variable stars.
Journal ArticleDOI
The Distance to SN 1999em from the Expanding Photosphere Method
Mario Hamuy,Philip A. Pinto,Jose Maza,Jose Maza,Jose Maza,Nicholas B. Suntzeff,Mark M. Phillips,Ronald G. Eastman,R. C. Smith,Christopher J. Corbally,David Burstein,Yong Li,Valentin D. Ivanov,Amaya Moro-Martin,Louis-Gregory Strolger,R. E. de Souza,R. E. de Souza,S. Dos Anjos,S. Dos Anjos,Elizabeth M. Green,T. E. Pickering,L. E. Gonzalez,L. E. Gonzalez,Roberto Antezana,Roberto Antezana,Marina Wischnjewsky,Marina Wischnjewsky,G. Galaz,Miguel Roth,S. E. Persson,R. A. Schommer +30 more
TL;DR: In this article, the authors present optical and infrared spectroscopy of the first 2 months of evolution of the Type II supernova SN 1999em and show that EPM can reach an average uncertainty of 11% in velocity from an individual spectrum.
Journal ArticleDOI
The Distance to SN 1999em from the Expanding Photosphere Method
Mario Hamuy,Philip A. Pinto,José Maza,N. B. Suntzeff,M. M. Phillips,R. G. Eastman,Robert Connon Smith,Christopher J. Corbally,David Burstein,Yang Li,Valentin D. Ivanov,Amaya Moro-Martin,Louis Gregory Strolger,R. E. de Souza,S. dos Anjos,Elizabeth M. Green,T. E. Pickering,Luis González,R. Antezana,M. Wischnjewsky,G. Galaz,M. Roth,S. E. Persson,Wendy L. Freedman,R. A. Schommer +24 more
TL;DR: In this paper, the authors present optical and IR spectroscopy of the first two months of evolution of the Type II SN 1999em to study the performance of the expanding photosphere method in the determination of distances.