User profiles for Stephane Leon

Stéphane Leon Tanne

Joint ALMA Observatory / ESO
Verified email at eso.org
Cited by 5648

Tidal tails around 20 galactic globular cluster: observational evidence for gravitational disk/bulge shocking

S Leon, G Meylan, F Combes - arXiv preprint astro-ph/0006100, 2000 - arxiv.org
Large-field multi-color images of 20 galactic globular clusters are used to investigate the
presence of tidal tails around these stellar systems. Field and cluster stars are sorted with the …

Molecular Gas in NUclei of GAlaxies (NUGA)-I. The counter-rotating LINER NGC 4826

…, AJ Baker, LJ Tacconi, A Eckart, R Neri, S Léon… - Astronomy & …, 2003 - aanda.org
We present new high-resolution observations of the nucleus of the counter-rotating LINER
NGC 4826, made in the –0 and –1 lines of 12 CO with the IRAM Plateau de Bure mm-…

[PDF][PDF] Functional heterogeneity of POMC neurons relies on mTORC1 signaling

…, C Catania, L Bellocchio, RA Romanov, S Léon… - Cell Reports, 2021 - cell.com
Hypothalamic pro-opiomelanocortin (POMC) neurons are known to trigger satiety. However,
these neuronal cells encompass heterogeneous subpopulations that release γ-…

N-body simulations of globular cluster tides

F Combes, S Leon, G Meylan - arXiv preprint astro-ph/9910148, 1999 - arxiv.org
We present N-body simulations of globular clusters, in orbits around the Galaxy, in order to
study quantitatively and geometrically the tidal effects they encounter. The clusters are …

[HTML][HTML] TANGO I: Interstellar medium in nearby radio galaxies-Molecular gas

BO Flaquer, S Leon, F Combes, J Lim - Astronomy & Astrophysics, 2010 - aanda.org
Context. Powerful radio-AGN are hosted by massive elliptical galaxies that are usually very
poor in molecular gas. Nevertheless, gas is needed at their very center to feed the nuclear …

Molecular Gas in NUclei of GAlaxies (NUGA)-IX. The decoupled bars and gas inflow in NGC 2782

…, M Krips, AJ Baker, F Boone, A Eckart, S Léon… - Astronomy & …, 2008 - aanda.org
We present CO(1–0) and CO(2–1) maps of the starburst/Seyfert 1 galaxy NGC 2782 obtained
with the IRAM interferometer, at 2115 and 0706 resolution respectively. The CO emission …

N‐3 PUFA deficiency disrupts oligodendrocyte maturation and myelin integrity during brain development

Q Leyrolle, F Decoeur, C Dejean, G Brière, S Leon… - Glia, 2022 - Wiley Online Library
Westernization of dietary habits has led to a progressive reduction in dietary intake of n‐3
polyunsaturated fatty acids (n‐3 PUFAs). Low maternal intake of n‐3 PUFAs has been linked …

Gravitational tidal effects on galactic open clusters

G Bergond, S Leon, J Guibert - Astronomy & Astrophysics, 2001 - aanda.org
We have investigated the 2-D stellar distribution in the outer parts of three nearby open
clusters: NGC 2287 (≡M 41), NGC 2516, and NGC 2548 (≡M 48). Wide-field star counts have …

Formation of molecular gas in the tidal debris of violent galaxy–galaxy interactions

J Braine, U Lisenfeld, PA Due, S Leon - Nature, 2000 - nature.com
In many gravitational interactions between galaxies, gas and stars that have been torn from
the precursor galaxies can collect in tidal ‘tails’. Star formation begins anew in some of these …

[HTML][HTML] The AMIGA sample of isolated galaxies-XIII. The HI content of an almost “nurture free” sample

…, WK Huchtmeier, U Lisenfeld, S Leon… - Astronomy & …, 2018 - aanda.org
Context. We present the largest catalogue of HI single dish observations of isolated galaxies
to date, as part of the multi-wavelength compilation being performed by the AMIGA project (…