Search Publications
The Gaia-ESO Survey: 3D dynamics of young groups and clusters from GES and Gaia EDR3
Gilmore, G.; Franciosini, E.; Randich, S. +9 more
We present the first large-scale 3D kinematic study of $\sim$2700 spectroscopically confirmed young stars ($\lt $20 Myr) in 18 star clusters and OB associations (hereafter groups) from the combination of Gaia astrometry and Gaia-ESO Survey spectroscopy. We measure 3D velocity dispersions for all groups, which range from 0.61 to 7.4 km s$^{-1}…
The DESI Early Data Release white dwarf catalogue
Moustakas, J.; Brooks, D.; Doel, P. +51 more
The Early Data Release (EDR) of the Dark Energy Spectroscopic Instrument (DESI) comprises spectroscopy obtained from 2020 December 14 to 2021 June 10. White dwarfs were targeted by DESI both as calibration sources and as science targets and were selected based on Gaia photometry and astrometry. Here, we present the DESI EDR white dwarf catalogue, …
EPOCHS Paper V. The dependence of galaxy formation on galaxy structure at z < 7 from JWST observations
Conselice, Christopher J.; Bluck, Asa F. L.; Li, Qiong +11 more
We measure the broad impact of galaxy structure on galaxy formation by examining the ongoing star formation and integrated star formation history as revealed through the stellar masses of galaxies at z < 7 based on JWST CEERS data from the Extended Groth Strip (EGS). Using the morphological catalog of 3965 visually classified JWST galaxies from…
JWST lensed quasar dark matter survey - II. Strongest gravitational lensing limit on the dark matter free streaming length to date
Djorgovski, S. G.; Stern, D.; Treu, T. +20 more
This is the second in a series of papers in which we use JWST Mid Infrared Instrument multiband imaging to measure the warm dust emission in a sample of 31 multiply imaged quasars, to be used as a probe of the particle nature of dark matter. We present measurements of the relative magnifications of the strongly lensed warm dust emission in a sampl…
Widespread AGN feedback in a forming brightest cluster galaxy at z = 4.1, unveiled by JWST
Pentericci, Laura; Cameron, Alex J.; Bosman, Sarah E. I. +16 more
We present rest-frame optical JWST Near-infrared Spectrograph (NIRSpec) integral field unit (IFU) spectroscopy of TN J1338-1942 at z = 4.1, one of the most luminous galaxies in the early universe with powerful extended radio jets. Previous observations showed evidence for strong, large-scale outflows based on its large (~150 kpc) halo detected in …
The NOEMA observations of GN-z11: constraining the neutral interstellar medium and dust formation in the heart of cosmic reionization at z = 10.6
Pérez-Fournon, I.; Schaerer, D.; Marques-Chaves, R. +17 more
We present results of dust continuum and [C II]$\, 158\, {\rm \mu m}$ emission line observations of a remarkably UV luminous (MUV = -21.6) galaxy at z = 10.603: GN-z11. Using the Northern Extended Millimeter Array (NOEMA), observations have been carried out over multiple observing cycles. We achieved a high sensitivity resulting in a $\…
Hot Jupiter diversity and the onset of TiO/VO revealed by a large grid of non-grey global circulation models
Parmentier, Vivien; Roth, Alexander; Hammond, Mark
The population of hot Jupiters is extremely diverse, with large variations in their irradiation, period, gravity, and chemical composition. To understand the intrinsic planet diversity through the observed population level trends, we explore the a priori scatter in the population created by the different responses of atmospheric circulation to pla…
Dissecting the Gaia HR diagram - II. The vertical structure of the star formation history across the solar cylinder
Girardi, Léo; Fouesneau, Morgan; Luger, Rodrigo +11 more
Starting from the Gaia DR3 HR diagram, we derive the star formation history (SFH) as a function of distance from the Galactic plane within a cylinder centred on the Sun with a 200 pc radius and spanning 1.3 kpc above and below the Galaxy's midplane. We quantify both the concentration of the more recent star formation in the Galactic plane, and the…
Hard X-rays and QPO in Swift J1727.8-1613: the rise and plateau of the 2023 outburst
Sunyaev, R.; Krivonos, R.; Sazonov, S. +5 more
We report on the detection of type-C quasi-periodic oscillations during the initial stages of the outburst of Swift J1727.8-1613 in 2023. Using data of the INTEGRAL observatory along with the data of the Mikhail PavlinskyART-XC telescope on board Spektr-RG and X-ray Telescope (XRT) of the Neil Gehrels Swift observatory the fast growth of the quasi…
Exploring the photometric variability of ultra-cool dwarfs with TESS
Gómez Maqueo Chew, Yilen; Segura, Antígona; Jofré, Emiliano +2 more
We present a photometric characterization of 208 ultra-cool dwarfs (UCDs) with spectral types between M4 and L4, from 20-s and 2-min cadence TESS light curves. We determine rotation periods for 87 objects ($\sim 42~{{\ \rm per\ cent}}$) and identify 778 flare events in 103 UCDs ($\sim 49.5~{{\ \rm per\ cent}}$). For 777 flaring events (correspondi…