Zobrazeno 1 - 10 of 96 pro vyhledávání: '"C J Walcher"'
2
ISM metallicity variations across spiral arms in disk galaxies: the impact of local enrichment and gas migration in the presence of radial metallicity gradient
Autor: S. Khoperskov, E. Sivkova, A. Saburova, E. Vasiliev, B. Shustov, I. Minchev, C. J. Walcher
Chemical abundance variations in the ISM provide important information about the galactic evolution, star-formation and enrichment histories. Recent observations of disk galaxies suggest that if large-scale azimuthal metallicity variations appear in
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c58db8b7620e367cf0f18a41243af7db
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4
[α/Fe] traced by H II regions from the CALIFA survey The connection between morphology and chemical abundance patterns
Autor: Leticia Carigi, A. Camps-Fariña, C. J. Walcher, Lluís Galbany, C. Espinosa-Ponce, Christophe Morisset, Rubén García-Benito, Jorge K. Barrera-Ballesteros, Sebastián F. Sánchez
Publikováno v: Digital.CSIC. Repositorio Institucional del CSIC
instname
Context. Differential enrichment between α and Fe-peak elements is known to be strongly connected with the shape of the star formation history (SFH), the star formation efficiency (SFE), the inflow and outflow of material, and even the shape of the
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::213dff2ee88a96ad3f5931ccba54967e
http://hdl.handle.net/10261/256354
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5
From global to spatially resolved in low-redshift galaxies
Autor: A. Mejía-Narváez, A. Camps-Fariña, Jorge K. Barrera-Ballesteros, Sebastián F. Sánchez, C. López-Cobá, C. J. Walcher, C. Espinosa-Ponce
Our understanding of the structure, composition and evolution of galaxies has strongly improved in the last decades, mostly due to new results based on large spectroscopic and imaging surveys. In particular, the nature of ionized gas, its ionization
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2f9159d402b9e49d96ca6d42d9434c7d
http://arxiv.org/abs/2009.00424
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6
Asymmetric spatial distribution of subsolar metallicity stars in the Milky Way nuclear star cluster
Autor: Harald Kuntschner, P. T. de Zeeuw, C. J. Walcher, Francisco Nogueras-Lara, Nadine Neumayer, Anil C. Seth, M. Kissler-Patig, Wolfgang Kerzendorf, Tuan Do, Nora Lützgendorf, Rainer Schödel, Anja Feldmeier-Krause, Michael Hilker
Publikováno v: Digital.CSIC. Repositorio Institucional del CSIC
instname
Monthly Notices of the Royal Astronomical Society, 494(1), 396-410
We present stellar metallicity measurements of more than 600 late-type stars in the central 10 pc of the Galactic Centre. Together with our previously published KMOS data, this data set allows us to investigate, for the first time, spatial variations
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0ed10ddc2df4dfe2d5b7e7c3a4417876
http://hdl.handle.net/10261/213849
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7
An optimized tiling pattern for multiobject spectroscopic surveys: application to the 4MOST survey
Autor: Johan Comparat, Edward N. Taylor, Mirko Krumpe, E. Swann, Norbert Christlieb, C. J. Walcher, Radu S. Stoica, Georges Kordopatis, Sofia Feltzing, Andreas Koch, Peder Norberg, Cristina Chiappini, Jesper Storm, Boudewijn F. Roukema, T. Tuvikene, Jonathan Loveday, Maria-Rosa L. Cioni, Isobel Hook, Elmo Tempel, Jenny G. Sorce, R. S. de Jong, Thomas Bensby, Gregor Traven, Ivan Minchev, Moorits Mihkel Muru
Publikováno v: Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, 2020, 497 (4), pp.4626-4643. ⟨10.1093/mnras/staa2285⟩
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2020, 497 (4), pp.4626-4643. ⟨10.1093/mnras/staa2285⟩
Monthly notices of the Royal Astronomical Society, 2020, Vol.497(4), pp.4626-4643 [Peer Reviewed Journal]
Large multi-object spectroscopic surveys require automated algorithms to optimise their observing strategy. One of the most ambitious upcoming spectroscopic surveys is the 4MOST survey. The 4MOST survey facility is a fibre-fed spectroscopic instrumen
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e4a03636450d7662b484424a77bb3485
https://hal.science/hal-02908412
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8
The CALIFA view on stellar angular momentum across the Hubble sequence
Autor: G. van de Ven, R. M. González Delgado, Jairo Méndez-Abreu, R. Cid Fernandes, Jorge K. Barrera-Ballesteros, Joss Bland-Hawthorn, Sebastián F. Sánchez, Martin Roth, Ling Zhu, Lluís Galbany, R. García-Benito, A. de Lorenzo-Cáceres, R. Singh, Patricia Sanchez-Blazquez, Mariya Lyubenova, D. Mast, Bernd Husemann, J. A. L. Aguerri, C. J. Walcher, Jesús Falcón-Barroso, S. Bekeraite, R. A. Marino, I. Pérez, Anna Gallazzi, R. C. E. van den Bosch, Bodo L. Ziegler, Lutz Wisotzki, Reynier Peletier, Stefano Zibetti, Tomás Ruiz-Lara, Enrique Pérez, I. Márquez, F. F. Rosales-Ortega, Vivienne Wild, Begoña García-Lorenzo
Publikováno v: Digital.CSIC. Repositorio Institucional del CSIC
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Astronomy and astrophysics, 632(December 2019):A59. EDP Sciences
Astronomy & Astrophysics
CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
[Abridged] We present the apparent stellar angular momentum of 300 galaxies across the Hubble sequence, using integral-field spectroscopic data from the CALIFA survey. Adopting the same $\lambda_\mathrm{R}$ parameter previously used to distinguish be
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7e6be496cd38caa6aa4f026be0436921
https://doi.org/10.1051/0004-6361/201936413
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9
The origins of post-starburst galaxies at z <0.05
Autor: Y. Zheng, Kate Rowlands, Noelia Jimenez, Natalia Lahén, Jairo Méndez-Abreu, W. Lucas, C. J. Walcher, Peter H. Johansson, M. M. Pawlik, L. Taj Aldeen, Vivienne Wild
Post-starburst galaxies can be identified via the presence of prominent Hydrogen Balmer absorption lines in their spectra. We present a comprehensive study of the origin of strong Balmer lines in a volume-limited sample of 189 galaxies with $0.019.5$
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ca99287abceda8b5479238cc248d8ea2
http://hdl.handle.net/10138/236712
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10
Cosmic evolution of the spatially resolved star formation rate and stellar mass of the CALIFA survey
Autor: William Schoenell, Anna Gallazzi, Enrique Pérez, Patricia Sanchez-Blazquez, N. Vale Asari, R. M. González Delgado, R. López Fernández, R. Cid Fernandes, C. J. Walcher, Sebastián F. Sánchez, Rubén García-Benito
Publikováno v: Digital.CSIC. Repositorio Institucional del CSIC
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We investigate the cosmic evolution of the absolute and specific star formation rate (SFR, sSFR) of galaxies as derived from a spatially resolved study of the stellar populations in a set of 366 nearby galaxies from the Calar Alto Legacy Integral Fie
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f041fdbfdb4b217a0dfea9d9fc435c42
http://hdl.handle.net/20.500.12386/27953
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