Search Publications
A CO funnel in the Galactic centre: Molecular counterpart of the northern Galactic chimney
Menten, K. M.; Schilke, P.; Fuller, G. A. +7 more
We report the discovery of a velocity coherent, funnel-shaped 13CO emission feature in the Galactic centre (GC) using data from the SEDIGISM survey. The molecular cloud appears as a low-velocity structure (VLSR = [ − 3.5, + 3.5] km s−1) with an angular extent of 0.95° ×1°, extending towards positive Galactic latitu…
Estimating the number of planets that PLATO can detect
Rauer, H.; Cabrera, J.; Börner, A. +2 more
Context. The PLATO mission is scheduled for launch in 2026. It will monitor more than 245 000 FGK stars of magnitude 13 or brighter for planet transit events. Among the key scientific goals are the detection of Earth-Sun analogs; the detailed characterization of stars and planets in terms of mass, radius, and ages; the detection of planetary syste…
Physical and chemical complexity in high-mass star-forming regions with ALMA. I. Overview and evolutionary trends of physical properties
Henning, Th.; Beuther, H.; Ahmadi, A. +3 more
Context. High-mass star formation is a hierarchical process from cloud (>1 pc), to clump (0.1−1 pc), to core scales (<0.1 pc). Modern interferometers that achieve high angular resolutions at millimeter wavelengths allow us to probe the physical and chemical properties of the gas and dust of protostellar cores in the earliest evolutionary for…
The CORALIE survey for southern extrasolar planets. XIX. Brown dwarfs and stellar companions unveiled by radial velocity and astrometry
Bouchy, F.; Queloz, D.; Ségransan, D. +17 more
Context. A historical search for exoplanets among a sample of 1647 nearby southern main sequence stars with the CORALIE spectrograph at La Silla Observatory has been underway since 1998, with a backup subprogram dedicated to the monitoring of binary stars.
Aims: We reviewed 25 years of CORALIE measurements and search for Doppler signals consi…
Gaia-ESO survey: Massive stars in the Carina Nebula. I. A new census of OB stars
Gosset, E.; Herrero, A.; Comerón, F. +16 more
Context. The Carina Nebula is one of the major massive star-forming regions in the Galaxy. Its relatively nearby distance (2.35 kpc) makes it an ideal laboratory for the study of massive star formation, structure, and evolution, both for individual stars and stellar systems. Thanks to the high-quality spectra provided by the Gaia-ESO survey and th…
TOI-1442 b and TOI-2445 b: Two potentially rocky ultra-short period planets around M dwarfs
Tamura, M.; Pallé, E.; Hirano, T. +52 more
Context. Exoplanets with orbital periods of less than one day are known as ultra-short period (USP) planets. They are relatively rare products of planetary formation and evolution processes, but especially favourable for characterisation with current planet detection methods. At the time of writing, 125 USP planets have already been confirmed.
Unusually long path length for a nearly scatter-free solar particle event observed by Solar Orbiter at 0.43 au
Kouloumvakos, Athanasios; Xu, Zigong; Wimmer-Schweingruber, Robert F. +28 more
Context. After their acceleration and release at the Sun, solar energetic particles (SEPs) are injected into the interplanetary medium and are bound to the interplanetary magnetic field (IMF) by the Lorentz force. The expansion of the IMF close to the Sun focuses the particle pitch-angle distribution, and scattering counteracts this focusing. Sola…
A z = 1.85 galaxy group in CEERS: Evolved, dustless, massive intra-halo light and a brightest group galaxy in the making
Papovich, Casey; Finkelstein, Steven L.; Pérez-González, Pablo G. +25 more
We present CEERS JWST/NIRCam imaging of a massive galaxy group at z = 1.85, to explore the early JWST view on massive group formation in the distant Universe. The group contains ≳16 members (including six spectroscopic confirmations) down to log10(M⋆/M⊙) = 8.5, including the brightest group galaxy (BGG) in the proc…
Astrochemical models of interstellar ices: History matters
Gratier, P.; Dartois, E.; Noble, J. A. +6 more
Context. Ice is ubiquitous in the interstellar medium. As soon as it becomes slightly opaque in the visible, it can be seen for visual extinctions (AV) above ~1.5. The James Webb Space Telescope (JWST) will observe the ice composition toward hundreds of lines of sight, covering a broad range of physical conditions in these extinct regio…
Disk Evolution Study Through Imaging of Nearby Young Stars (DESTINYS): Diverse outcomes of binary-disk interactions
Zhang, Yapeng; Bae, Jaehan; Huang, Jane +15 more
Context. Circumstellar disks play an essential role in the outcomes of planet formation. Disks do not evolve in isolation, as about half of solar-type stars were born in binary or multiple systems. The presence of stellar companions modifies the morphology and evolution of disks, potentially resulting in a different planet population. Resolving di…