D
D. Katz
Researcher at University of Paris
Publications - 30
Citations - 1475
D. Katz is an academic researcher from University of Paris. The author has contributed to research in topics: Stars & Radial velocity. The author has an hindex of 11, co-authored 28 publications receiving 1092 citations. Previous affiliations of D. Katz include Paris Diderot University & PSL Research University.
Papers
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Journal ArticleDOI
A dynamically young and perturbed Milky Way disk
Teresa Antoja,Amina Helmi,Manuel Romero-Gómez,D. Katz,C. Babusiaux,C. Babusiaux,R. Drimmel,D. W. Evans,F. Figueras,E. Poggio,E. Poggio,Céline Reylé,Annie C. Robin,George M. Seabroke,Caroline Soubiran +14 more
TL;DR: In this article, an analysis of the motions of six million stars in the Milky Way disk reveals substructures such as snail shells and ridges, indicating that our Galaxy has been recently perturbed.
Journal ArticleDOI
Reconstructing the star formation history of the Milky Way disc(s) from chemical abundances
O. Snaith,O. Snaith,Misha Haywood,P. Di Matteo,Matthew D. Lehnert,Francoise Combes,D. Katz,A. E. Gomez +7 more
TL;DR: In this article, a chemical evolution model was developed to study the star formation history of the Milky Way, which assumes that the galaxy formed from a closed-box-like system in the inner regions, while the outer parts of the disc have experienced some accretion.
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Open cluster kinematics with Gaia DR2
Caroline Soubiran,Tristan Cantat-Gaudin,M. Romero-Gómez,Laia Casamiquela,Carme Jordi,Antonella Vallenari,Teresa Antoja,L. Balaguer-Núñez,Diego Bossini,Angela Bragaglia,Ricardo Carrera,Alfred Castro-Ginard,F. Figueras,Ulrike Heiter,D. Katz,Alberto Krone-Martins,J. F. Le Campion,André Moitinho,R. Sordo +18 more
TL;DR: In this paper, the distribution of open clusters in the 6D phase space is revisited with Gaia DR2, using the most probable members available from a previous astrometric investigation that also provided mean parallaxes and proper motions.
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When the Milky Way turned off the lights: APOGEE provides evidence of star formation quenching in our Galaxy
TL;DR: In this paper, the authors show that the Milky Way experienced a generalised quenching of its star formation at the end of its thick-disk formation ~9 Gyr ago.
Journal ArticleDOI
The Milky Way has no in-situ halo other than the heated thick disc - Composition of the stellar halo and age-dating the last significant merger with Gaia DR2 and APOGEE
P. Di Matteo,P. Di Matteo,Misha Haywood,Misha Haywood,Matthew D. Lehnert,D. Katz,Sergey Khoperskov,Sergey Khoperskov,O. Snaith,O. Snaith,A. Gómez,N. Robichon +11 more
TL;DR: In this article, the stellar kinematic fossil record shows the imprint left by this accretion event, which heated the old galactic disc, and it is shown that the accretion occurred between nine and 11 Gyr ago, and that it led to the last significant heating of the galactic disc.