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Sirius
Publications associées (25)
MOSEL Survey: JWST Reveals Major Mergers/strong Interactions Drive the Extreme Emission Lines in the Early Universe
Extreme emission line galaxies (EELGs), where nebular emissions contribute 30%-40% of the flux in certain photometric bands, are ubiquitous in the early Universe (z > 6). We utilize deep NIRCam imaging from the JWST Advanced Deep Extragalactic Survey (JADE ...
Bristol2023To grow old and peculiar: Survey of anomalous variable stars in M80 with age determinations using K2 and Gaia
The globular cluster Messier 80 was monitored by the Kepler space telescope for 80 days during the K2 mission. Continuous, high-precision photometry of such an old, compact cluster allows us for studies of its variable star population in unprecedented deta ...
Les Ulis Cedex A2023Resolving Galactic-scale Obscuration of X-Ray AGNs at z & GSIM; 1 with COSMOS-Web
A large fraction of the accreting supermassive black hole population is shrouded by copious amounts of gas and dust, particularly in the distant (z & GSIM; 1) universe. While much of the obscuration is attributed to a parsec-scale torus, there is a known c ...
IOP Publishing Ltd2023Gaia Data Release 3 Summary of the variability processing and analysis
Context. Gaia has been in operations since 2014, and two full data releases (DR) have been delivered so far: DR1 in 2016 and DR2 in 2018. The third Gaia data release expands from the early data release (EDR3) in 2020, which contained the five-parameter ast ...
EDP SCIENCES S A2023The eta Aquilae System: Radial Velocities and Astrometry in Search of eta Aql B
The classical Cepheid eta Aql was not included in past Leavitt Law work because of a presumed complicating orbit due to a known B9.8V companion. To determine the orbit of eta Aql B, we analyze a significant number of radial velocity (RV) measurements from ...
2022Extended main sequence turnoffs in open clusters as seen by Gaia - II. The enigma of NGC 2509
We investigate the morphology of the colour-magnitude diagram (CMD) of the open cluster NGC 2509 in comparison with other Galactic open clusters of similar age using Gaia photometry. At similar to 900 Myr Galactic open clusters in our sample all show an ex ...
OXFORD UNIV PRESS2020Gaia Data Release 2 Summary of the variability processing and analysis results
Context. The Gaia Data Release 2 (DR2) contains more than half a million sources that are identified as variable stars. Aims. We summarise the processing and results of the identification of variable source candidates of RR Lyrae stars, Cepheids, long-peri ...
EDP SCIENCES S A2018A High Space Density of Luminous Ly alpha Emitters at z similar to 6.5
We present the results of a systematic search for Ly alpha emitters (LAEs) at 6 less than or similar to z less than or similar to 7.6 using the HST WFC3 Infrared Spectroscopic Parallel (WISP) Survey. Our total volume over this redshift range is similar to ...
Iop Publishing Ltd2017Evaluating the effect of stellar multiplicity on the point spread function of space-based weak lensing surveys
Frédéric Courbin, Georges Meylan, Thibault Adrien Kuntzer
The next generation of space-based telescopes used for weak lensing surveys will require exquisite point spread function (PSF) determination. Previously negligible effects may become important in the reconstruction of the PSF, in part because of the improv ...
Edp Sciences S A2016Gaia Data Release 1 Summary of the astrometric, photometric, and survey properties
Stephan Morgenthaler, Mikaël Martino, Shuangqing Liao
Context. At about 1000 days after the launch of Gaia we present the first Gaia data release, Gaia DR1, consisting of astrometry and photometry for over 1 billion sources brighter than magnitude 20.7. Aims. A summary of Gaia DR1 is presented along with illu ...
EDP Sciences2016