Search Publications
An atlas of MUSE observations towards twelve massive lensing clusters
Bacon, Roland; Carton, David; Bouché, Nicolas +24 more
Context. Spectroscopic surveys of massive galaxy clusters reveal the properties of faint background galaxies thanks to the magnification provided by strong gravitational lensing.
Aims: We present a systematic analysis of integral-field-spectroscopy observations of 12 massive clusters, conducted with the Multi Unit Spectroscopic Explorer (MUSE…
LOFAR observations of galaxy clusters in HETDEX. Extraction and self-calibration of individual LOFAR targets
Di Gennaro, G.; Brunetti, G.; Rossetti, M. +20 more
Diffuse cluster radio sources, in the form of radio halos and relics, reveal the presence of cosmic rays and magnetic fields in the intracluster medium (ICM). These cosmic rays are thought to be (re)accelerated through the ICM turbulence and shock waves generated by cluster merger events. Here we characterize the presence of diffuse radio emission…
A new measurement of the Hubble constant using Type Ia supernovae calibrated with surface brightness fluctuations
Izzo, Luca; Gall, Christa; Hjorth, Jens +15 more
We present a new calibration of the peak absolute magnitude of Type Ia supernovae (SNe Ia) based on the surface brightness fluctuations (SBF) method, aimed at measuring the value of the Hubble constant. We build a sample of calibrating anchors consisting of 24 SNe hosted in galaxies that have SBF distance measurements. Applying a hierarchical Baye…
The Milky Way bar and bulge revealed by APOGEE and Gaia EDR3
Schultheis, M.; Minniti, D.; da Costa, L. N. +23 more
We investigate the inner regions of the Milky Way using data from APOGEE and Gaia EDR3. Our inner Galactic sample has more than 26 500 stars within |XGal|< 5 kpc, |YGal|< 3.5 kpc, |ZGal|< 1 kpc, and we also carry out the analysis for a foreground-cleaned subsample of 8000 stars that is more representative …
Galactic spiral structure revealed by Gaia EDR3
Marshall, D. J.; Fouesneau, M.; Andrae, R. +14 more
Using the astrometry and integrated photometry from the Gaia Early Data Release 3, we map the density variations in the distribution of young upper main sequence (UMS) stars, open clusters, and classical Cepheids in the Galactic disc within several kiloparsecs of the Sun. We derive maps of relative over- and under-dense regions for UMS stars in th…
Gaia Early Data Release 3. Gaia photometric science alerts
Prusti, T.; Gilmore, G.; Smith, M. D. +108 more
Context. Since July 2014, the Gaia mission has been engaged in a high-spatial-resolution, time-resolved, precise, accurate astrometric, and photometric survey of the entire sky.
Aims: We present the Gaia Science Alerts project, which has been in operation since 1 June 2016. We describe the system which has been developed to enable the discove…
The miniJPAS survey: A preview of the Universe in 56 colors
Finoguenov, A.; Cepa, J.; Diego, J. M. +168 more
The Javalambre-Physics of the Accelerating Universe Astrophysical Survey (J-PAS) will scan thousands of square degrees of the northern sky with a unique set of 56 filters using the dedicated 2.55 m Javalambre Survey Telescope (JST) at the Javalambre Astrophysical Observatory. Prior to the installation of the main camera (4.2 deg2 field-…
The Galaxy Activity, Torus, and Outflow Survey (GATOS). I. ALMA images of dusty molecular tori in Seyfert galaxies
Rouan, D.; Rigopoulou, D.; Hunt, L. K. +32 more
We present the first results of the Galaxy Activity, Torus, and Outflow Survey (GATOS), a project aimed at understanding the properties of the dusty molecular tori and their connection to the host galaxy in nearby Seyfert galaxies. Our project expands the range of active galactic nuclei (AGN) luminosities and Eddington ratios covered by previous s…
The infrared-radio correlation of star-forming galaxies is strongly M⋆-dependent but nearly redshift-invariant since z ∼ 4
Prandoni, I.; Daddi, E.; Elbaz, D. +25 more
Over the past decade, several works have used the ratio between total (rest 8−1000 µm) infrared and radio (rest 1.4 GHz) luminosity in star-forming galaxies (qIR), often referred to as the infrared-radio correlation (IRRC), to calibrate the radio emission as a star formation rate (SFR) indicator. Previous studies constrained the e…
The 10 parsec sample in the Gaia era
Caballero, J. A.; Sozzetti, A.; Reylé, C. +3 more
Context. The nearest stars provide a fundamental constraint for our understanding of stellar physics and the Galaxy. The nearby sample serves as an anchor where all objects can be seen and understood with precise data. This work is triggered by the most recent data release of the astrometric space mission Gaia and uses its unprecedented high preci…