Search Publications
The eROSITA view of the Abell 3391/95 field: The Northern Clump. The largest infalling structure in the longest known gas filament observed with eROSITA, XMM-Newton, and Chandra
Sanders, Jeremy S.; Reiprich, Thomas H.; Koribalski, Bärbel S. +18 more
Context. Galaxy clusters grow through mergers and the accretion of substructures along large-scale filaments. Many of the missing baryons in the local Universe may reside in such filaments as the warm-hot intergalactic medium (WHIM).
Aims: SRG/eROSITA performance verification observations revealed that the binary cluster Abell 3391/3395 and t…
The Cetus-Palca stream: A disrupted small dwarf galaxy. A prequel to the science possible with WEAVE with precise spectro-photometric distances
Thomas, Guillaume F.; Battaglia, Giuseppina
We present a new fully data-driven approach to derive spectro-photometric distances based on artificial neural networks. The method was developed and tested on Sloan Extension for Galactic Understanding and Exploration survey (SEGUE) data and will serve as a reference for the Contributed Data Product SPDIST of the William Hershel Telescope Enhance…
Astrophysical parameters from Gaia DR2, 2MASS, and AllWISE
Bailer-Jones, C. A. L.; Rybizki, J.; Fouesneau, M. +3 more
Context. Physical and dynamical stellar properties are essential knowledge for understanding the structure, formation, and evolution of our Galaxy.
Aims: We produced a uniformly derived all-sky catalog of stellar astrophysical parameters (APs; age, mass, temperature, bolometric luminosity, distance, and dust extinction) to provide insight int…
The CARMENES search for exoplanets around M dwarfs. Two Saturn-mass planets orbiting active stars
Amado, P. J.; Caballero, J. A.; Pallé, E. +26 more
The CARMENES radial-velocity survey is currently searching for planets in a sample of 387 M dwarfs. Here we report on two Saturn-mass planets orbiting TYC 2187-512-1 (M* = 0.50 M⊙) and TZ Ari (M* = 0.15 M⊙), respectively. We obtained supplementary photometric time series, which we use along with spectros…
The eROSITA Final Equatorial-Depth Survey (eFEDS). Presenting the demographics of X-ray emission from normal galaxies
Haberl, F.; Hornschemeier, A. E.; Ptak, A. +17 more
Context. The eROSITA Final Equatorial Depth Survey (eFEDS), completed in survey mode during the calibration and performance verification phase of the eROSITA instrument on Spectrum Roentgen Gamma, delivers data at and beyond the final depth of the 4-yr eROSITA all-sky survey (eRASS:8), f0.5-2 keV = 1.1 × 10−14 erg s−1
Three new brown dwarfs and a massive hot Jupiter revealed by TESS around early-type stars
Bieryla, Allyson; Latham, David W.; Brahm, Rafael +45 more
Context. The detection and characterization of exoplanets and brown dwarfs around massive AF-type stars is essential to investigate and constrain the impact of stellar mass on planet properties. However, such targets are still poorly explored in radial velocity (RV) surveys because they only feature a small number of stellar lines and those are us…
Evidence of a complex structure within the 2013 August 19 coronal mass ejection. Radial and longitudinal evolution in the inner heliosphere
Jian, L. K.; Rodríguez-Pacheco, J.; Zouganelis, I. +9 more
Context. Late on 2013 August 19, a coronal mass ejection (CME) erupted from an active region located near the far-side central meridian from Earth's perspective. The event and its accompanying shock were remotely observed by the STEREO-A, STEREO-B, and SOHO spacecraft. The interplanetary counterpart (ICME) was intercepted by MESSENGER near 0.3 au …
From ridges to manifolds: 3D characterization of the moving groups in the Milky Way disc
Antoja, T.; Bernet, M.; Monari, G. +4 more
Context. The details of the effect of the bar and spiral arms on the disc dynamics of the Milky Way are still unknown. The stellar velocity distribution in the solar neighbourhood displays kinematic substructures, which are possibly signatures of these processes and of previous accretion events. With the Gaia mission, more details of these signatu…
Quasars with large proper motions: A selection from the LQAC-5 catalogue combined with Gaia EDR3. Focusing on astrometric and photometric properties
Zacharias, N.; Barache, C.; Lambert, S. +5 more
Context. Thanks to the cross-identification between the Gaia EDR3 (E-Data Release 3) catalogue and the quasars' compiled catalogue LQAC-5 (Large Quasar Astrometric Catalogue-5), accurate astrometric parameters as well as photometric measurements were available for a set of 416 113 quasars.
Aims: After analysing the astrometric and photometric…
New strong lensing modelling of SDSS J2222+2745 enhanced with VLT/MUSE spectroscopy
Brammer, G.; Grillo, C.; Tozzi, P. +8 more
Context. SDSS J2222+2745, at z = 0.489, is one of the few currently known lens clusters with multiple images (six) of a background (z = 2.801) quasar with measured time delays between two image pairs (with a sub-percent relative error for the longer time delay). Systems of this kind can be exploited as alternative cosmological probes through high-…