C
C. J. Walcher
Researcher at Leibniz Institute for Astrophysics Potsdam
Publications - 78
Citations - 5944
C. J. Walcher is an academic researcher from Leibniz Institute for Astrophysics Potsdam. The author has contributed to research in topics: Galaxy & Star formation. The author has an hindex of 37, co-authored 74 publications receiving 5287 citations.
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Journal ArticleDOI
The O3N2 and N2 abundance indicators revisited: improved calibrations based on CALIFA and T e-based literature data
R. A. Marino,F. F. Rosales-Ortega,F. F. Rosales-Ortega,Sebastián F. Sánchez,A. Gil de Paz,J. Vílchez,D. Miralles-Caballero,C. Kehrig,Enrique Pérez-Montero,Vallery Stanishev,Jorge Iglesias-Páramo,A. I. Díaz,África Castillo-Morales,Robert C. Kennicutt,Angel R. Lopez-Sanchez,Angel R. Lopez-Sanchez,Lluís Galbany,Rubén García-Benito,D. Mast,Jairo Méndez-Abreu,Jairo Méndez-Abreu,Ana Monreal-Ibero,Bernd Husemann,C. J. Walcher,Begoña García-Lorenzo,Begoña García-Lorenzo,Josefa Masegosa,A. Del Olmo Orozco,A. Mourao,Bodo L. Ziegler,M. Mollá,Polychronis Papaderos,Patricia Sanchez-Blazquez,R. M. González Delgado,Jesús Falcón-Barroso,Jesús Falcón-Barroso,Markus Roth,G. van de Ven,Califa Team +38 more
TL;DR: In this paper, the most widely used empirical oxygen calibrations, O3N2 and N2, by using new direct abundance measurements are reviewed, and the expected uncertainty of these calibrations as a function of the index value or abundance derived is analyzed.
Journal ArticleDOI
A characteristic oxygen abundance gradient in galaxy disks unveiled with CALIFA
Sebastián F. Sánchez,Sebastián F. Sánchez,F. F. Rosales-Ortega,J. Iglesias-Páramo,Mercedes Mollá,Jorge K. Barrera-Ballesteros,R. A. Marino,Enrique Pérez,Patricia Sanchez-Blazquez,R. M. González Delgado,R. Cid Fernandes,A. de Lorenzo-Cáceres,A. de Lorenzo-Cáceres,Jairo Méndez-Abreu,Jairo Méndez-Abreu,Jairo Méndez-Abreu,Lluís Galbany,Jesús Falcón-Barroso,D. Miralles-Caballero,B. Husemann,Rubén García-Benito,D. Mast,C. J. Walcher,A. Gil de Paz,Begoña García-Lorenzo,Bruno Jungwiert,José M. Vílchez,Lucie Jílková,Mariya Lyubenova,C. Cortijo-Ferrero,Angeles I. Díaz,Lutz Wisotzki,I. Márquez,Joss Bland-Hawthorn,Simon Ellis,Simon Ellis,G. van de Ven,Knud Jahnke,Polychronis Papaderos,J. M. Gomes,M. A. Mendoza,Angel R. Lopez-Sanchez,Angel R. Lopez-Sanchez +42 more
TL;DR: In this paper, the authors presented the largest and most homogeneous catalog of H ii regions and associations compiled so far, consisting of more than 7000 ionized regions, extracted from 306 galaxies observed by the CALIFA survey.
Journal ArticleDOI
The SAMI Galaxy Survey: Instrument specification and target selection
Julia J. Bryant,Julia J. Bryant,Matt S. Owers,Aaron S. G. Robotham,Scott M. Croom,Simon P. Driver,Simon P. Driver,Michael J. Drinkwater,Nuria P. F. Lorente,Luca Cortese,Nicholas Scott,Matthew Colless,Adam L. Schaefer,Adam L. Schaefer,Edward N. Taylor,I. S. Konstantopoulos,I. S. Konstantopoulos,J. T. Allen,Ivan K. Baldry,Luke A. Barnes,Amanda E. Bauer,Joss Bland-Hawthorn,J. V. Bloom,Alyson Brooks,Sarah Brough,Gerald Cecil,Gerald Cecil,Warrick J. Couch,Darren J. Croton,R. I. Davies,Simon Ellis,L. M. R. Fogarty,Caroline Foster,Karl Glazebrook,Michael Goodwin,Andrew W. Green,Madusha Gunawardhana,Elise Hampton,I-Ting Ho,Andrew M. Hopkins,Lisa J. Kewley,Jon Lawrence,Sergio G. Leon-Saval,Sarah K. Leslie,Rebecca McElroy,Geraint F. Lewis,Jochen Liske,Angel R. Lopez-Sanchez,Angel R. Lopez-Sanchez,Smriti Mahajan,Smriti Mahajan,Anne M. Medling,Nigel Metcalfe,Martin Meyer,Jeremy Mould,Danail Obreschkow,Simon J. O'Toole,Michael Pracy,Samuel N. Richards,Samuel N. Richards,Tom Shanks,Rob Sharp,Rob Sharp,Sarah M. Sweet,Sarah M. Sweet,A. D. Thomas,C. Tonini,C. J. Walcher +67 more
TL;DR: The SAMI Galaxy Survey as discussed by the authors is a 3-year survey of 3400 galaxies with the Sydney-AAO Multi-Object Integral Field Spectrograph (SAMI) on the Anglo-Australian Telescope (AAT).
Journal ArticleDOI
The SWIRE-VVDS-CFHTLS surveys: stellar mass assembly over the last 10 Gyr. Evidence for a major build up of the red sequence between z = 2 and z = 1
Stephane Arnouts,C. J. Walcher,O. Le Fevre,G. Zamorani,Olivier Ilbert,V. Le Brun,Lucia Pozzetti,S. Bardelli,L. Tresse,E. Zucca,Stéphane Charlot,F. Lamareille,H. J. McCracken,Micol Bolzonella,A. Iovino,Carol J. Lonsdale,Maria del Carmen Polletta,Jason Surace,D. Bottini,B. Garilli,D. Maccagni,J. P. Picat,Roberto Scaramella,Marco Scodeggio,Gianpaolo Vettolani,A. Zanichelli,C. Adami,A. Cappi,Paolo Ciliegi,T. Contini,S. de la Torre,Sylvie Foucaud,P. Franzetti,I. Gavignaud,Luigi Guzzo,B. Marano,Christian Marinoni,A. Mazure,B. Meneux,R. Merighi,Stéphane Paltani,R. Pello,A. Pollo,Mario Radovich,S. Temporin,Daniela Vergani +45 more
TL;DR: In this article, the authors present an analysis of the stellar mass growth over the last 10 Gyrs using a large 3.6$\mu$ selected sample and derive the stellar density for the entire sample.
Journal ArticleDOI
CALIFA : a diameter-selected sample for an integral field spectroscopy galaxy survey
C. J. Walcher,Lutz Wisotzki,S. Bekeraite,B. Husemann,B. Husemann,J. Iglesias-Páramo,N. Backsmann,J. Barrera Ballesteros,J. Barrera Ballesteros,Cristina Catalán-Torrecilla,C. Cortijo,A. del Olmo,B. Garcia Lorenzo,B. Garcia Lorenzo,Jesús Falcón-Barroso,Jesús Falcón-Barroso,Lucie Jílková,Veselina Kalinova,D. Mast,R. A. Marino,Jairo Méndez-Abreu,Jairo Méndez-Abreu,Jairo Méndez-Abreu,Anna Pasquali,Sebastián F. Sánchez,Sebastián F. Sánchez,Scott Trager,Stefano Zibetti,J. A. L. Aguerri,J. A. L. Aguerri,João Alves,Joss Bland-Hawthorn,Alessandro Boselli,A. Castillo Morales,R. Cid Fernandes,Hector Flores,Lluís Galbany,Anna Gallazzi,Anna Gallazzi,R. García-Benito,A. Gil de Paz,R. M. Gonzalez-Delgado,Knud Jahnke,Bruno Jungwiert,C. Kehrig,Mariya Lyubenova,I. Márquez Perez,J. Masegosa,A. Monreal Ibero,A. Monreal Ibero,Enrique Pérez,Andreas Quirrenbach,F. F. Rosales-Ortega,Martin Roth,Patricia Sanchez-Blazquez,Kristine Spekkens,Elena Tundo,G. van de Ven,Marc Verheijen,J. V. Vilchez,Bodo L. Ziegler +60 more
TL;DR: In this paper, the authors describe the selection procedure and statistical properties of the galaxy sample used by the Calar Alto Legacy Integral Field Area (CALIFA) survey, a public legacy survey of 600 galaxies using integral field spectroscopy.