Search Publications
Missions
Journals
Publication Years
Insight into the Formation of β Pic b through the Composition of Its Parent Protoplanetary Disk as Revealed by the β Pic Moving Group Member HD 181327
Sing, David K.; Lothringer, Joshua D.; Pueyo, Laurent +5 more
It has been suggested that β Pic b has a supersolar metallicity and subsolar C/O ratio. Assuming solar carbon and oxygen abundances for the star β Pic and therefore the planet's parent protoplanetary disk, β Pic b's C/O ratio suggests that it formed via core accretion between its parent protoplanetary disk's H2O and CO2 ice l…
Euclid preparation: XLIII. Measuring detailed galaxy morphologies for Euclid with machine learning
Altieri, B.; Cimatti, A.; Aghanim, N. +256 more
The Euclid mission is expected to image millions of galaxies at high resolution, providing an extensive dataset with which to study galaxy evolution. Because galaxy morphology is both a fundamental parameter and one that is hard to determine for large samples, we investigate the application of deep learning in predicting the detailed morphologies …
Localising pulsations in the hard X-ray and microwave emission of an X-class flare
Krucker, Säm; Polito, Vanessa; Yu, Sijie +5 more
Aims: The aim of this work is to identify the mechanism driving pulsations in hard X-ray (HXR) and microwave emission during solar flares. Using combined HXR and microwave observations from Solar Orbiter/STIX and EOVSA, we investigate an X1.3 GOES class flare, 2022-03-30T17:21:00, which displays pulsations on timescales evolving from ∼7 s in …
Atmospheric carbon depletion as a tracer of water oceans and biomass on temperate terrestrial exoplanets
Triaud, Amaury H. M. J.; Seager, Sara; Rackham, Benjamin V. +9 more
The conventional observables to identify a habitable or inhabited environment in exoplanets, such as an ocean glint or abundant atmospheric O2, will be challenging to detect with present or upcoming observatories. Here we suggest a new signature. A low carbon abundance in the atmosphere of a temperate rocky planet, relative to other pla…
The extreme coronal line emitter AT 2022fpx: varying optical polarization properties and late-time X-ray flare
Reynolds, Thomas M.; Liodakis, Ioannis; Carbajo-Hijarrubia, Juan +8 more
Supermassive black holes disrupt passing stars, producing outbursts called tidal disruption events (TDEs). TDEs have recently gained attention due to their unique dynamics and emission processes, which are still not fully understood. Especially, the so-called optical TDEs are of interest as they often exhibit delayed or obscured X-ray emission fro…
Modelling two energetic storm particle events observed by Solar Orbiter using the combined EUHFORIA and iPATH models
Li, Gang; Poedts, Stefaan; Kouloumvakos, Athanasios +6 more
Context. By coupling the EUropean Heliospheric FORcasting Information Asset (EUHFORIA) and the improved Particle Acceleration and Transport in the Heliosphere (iPATH) models, we model two energetic storm particle (ESP) events originating from the same active region (AR 13088) and observed by Solar Orbiter (SolO) on August 31, 2022, and September 5…
JWST/MIRI unveils the stellar component of the GN20 dusty galaxy overdensity at z = 4.05
Östlin, G.; Colina, L.; Greve, T. R. +24 more
Dusty star-forming galaxies (DSFGs) at z > 2 have been commonly observed in overdense regions, where the merging processes and large halo masses induce rapid gas accretion, triggering star formation rates (SFRs) up to ∼1000 M⊙ yr‑1. Despite the importance of these DSFGs for understanding star formation in the early Univers…
Global-Scale Processes and Effects of Magnetic Reconnection on the Geospace Environment
Eastwood, J. P.; Lavraud, B.; Nakamura, R. +14 more
Recent multi-point measurements, in particular from the Magnetospheric Multiscale (MMS) spacecraft, have advanced the understanding of micro-scale aspects of magnetic reconnection. In addition, the MMS mission, as part of the Heliospheric System Observatory, combined with recent advances in global magnetospheric modeling, have furthered the unders…
Behind the mask: can HARMONI@ELT detect biosignatures in the reflected light of Proxima b?
Vigan, Arthur; Carlotti, Alexis; Pereira-Santaella, Miguel +7 more
Proxima b is a rocky exoplanet in the habitable zone of the nearest star system and a key test case in the search for extraterrestrial life. Here, we investigate the characterization of a potential Earth-like atmosphere around Proxima b in reflected light via molecule mapping, combining high-resolution spectroscopy (HRS) and high contrast imaging,…
CLASSY. IX. The Chemical Evolution of the Ne, S, Cl, and Ar Elements
Ravindranath, Swara; Martin, Crystal L.; Kumari, Nimisha +20 more
To study the chemical evolution across cosmic epochs, we investigate Ne, S, Cl, and Ar abundance patterns in the Cosmic Origins Spectrograph Legacy Archive Spectroscopic SurveY (CLASSY). CLASSY comprises local star-forming galaxies (SFGs; 0.02 < z < 0.18) with enhanced star formation rates, making them strong analogues to high-z SFGs. With d…