123 citations · 793 across the 31 of their papers we have counts for
14 papers · 1 filter
Stellar energetic particle and cosmic ray effects in exoplanetary atmospheres
D. Rodgers-Lee
Energetic particles, in the form of stellar energetic particles and cosmic rays, can lead to disequilibrium chemical effects in exoplanetary atmospheres. In Earth-like atmospheres,…
MINDS: Mid-infrared atomic and molecular hydrogen lines in the inner disk around a low-mass star
Riccardo Franceschi, Thomas Henning, Benoît Tabone +27
This work aims to measure the mass accretion rate, the accretion luminosity, and more generally the physical conditions of the warm emitting gas in the inner disk of the very low-m…
MINDS. The detection of CO with JWST-MIRI indicates abundant CO in a protoplanetary disk
Sierra L. Grant, Ewine F. van Dishoeck, Benoît Tabone +43
We present JWST-MIRI MRS spectra of the protoplanetary disk around the low-mass T Tauri star GW Lup from the MIRI mid-INfrared Disk Survey (MINDS) GTO program. Emission from $^{12}…
The strong suppression of Galactic cosmic rays reaching AU Mic b, c and Prox Cen b
A. L. Mesquita, D. Rodgers-Lee, A. A. Vidotto +1
The propagation of Galactic cosmic rays is well understood in the context of the solar system but is poorly studied for M dwarf systems. Quantifying the flux of cosmic rays reachin…
Galactic cosmic ray propagation through M dwarf planetary systems
A. L. Mesquita, D. Rodgers-Lee, A. A. Vidotto +2
Quantifying the flux of cosmic rays reaching exoplanets around M dwarfs is essential to understand their possible effects on exoplanet habitability. Here, we investigate the propag…
Charting nearby stellar systems: The intensity of Galactic cosmic rays for a sample of solar-type stars
D. Rodgers-Lee, A. A. Vidotto, A. L. Mesquita
Cosmic rays can penetrate planetary atmospheres driving the formation of prebiotic molecules, which are important for the origin of life. We calculate the Galactic cosmic ray fluxe…
The Earth-like Galactic cosmic ray intensity in the habitable zone of the M dwarf GJ 436
A. L. Mesquita, D. Rodgers-Lee, A. A. Vidotto
Galactic cosmic rays are energetic particles important in the context of life. Many works have investigated the propagation of Galactic cosmic rays through the Sun's heliosphere. H…
Stellar versus Galactic: The intensity of cosmic rays at the evolving Earth and young exoplanets around Sun-like stars
D. Rodgers-Lee, A. M. Taylor, A. A. Vidotto +1
Energetic particles, such as stellar cosmic rays, produced at a heightened rate by active stars (like the young Sun) may have been important for the origin of life on Earth and oth…
The Galactic cosmic ray intensity at the evolving Earth and young exoplanets
D. Rodgers-Lee, A. A. Vidotto, A. M. Taylor +2
Cosmic rays may have contributed to the start of life on Earth. Here, we investigate the evolution of the Galactic cosmic ray spectrum at Earth from ages Gyr. We use…
Stellar cosmic rays as an important source of ionisation in protoplanetary disks: a disk mass dependent process
D. Rodgers-Lee, A. M. Taylor, T. P. Downes +1
We assess the ionising effect of low energy protostellar cosmic rays in protoplanetary disks around a young solar mass star for a wide range of disk parameters. We assume a source…
The ionising effect of low energy cosmic rays from a class II object on its protoplanetary disk
Donna Rodgers-Lee, Andrew M. Taylor, Tom P. Ray +1
We investigate the ionising effect of low energy cosmic rays (CRs) from a young star on its protoplanetary disk (PPD). We consider specifically the effect of GeV protons i…
Global multifluid simulations of the magnetorotational instability in radially stratified protoplanetary disks
Donna Rodgers-Lee, Tom P. Ray, Turlough P. Downes
The redistribution of angular momentum is a long standing problem in our understanding of protoplanetary disk (PPD) evolution. The magnetorotational instability (MRI) is considered…
Near Infrared Spectroscopy of Young Brown Dwarfs in Upper Scorpius
P. Dawson, A. Scholz, T. P. Ray +3
Spectroscopic follow-up is a pre-requisite for studies of the formation and early evolution of brown dwarfs. Here we present IRTF/SpeX near-infrared spectroscopy of 30 candidate me…
The Herschel view of circumstellar discs: a multi-wavelength study of Chamaeleon I
Donna Rodgers-Lee, Alexander Scholz, Antonella Natta +1
We present the results of a multi-wavelength study of circumstellar discs around 44 young stellar objects in the 3 Myr old nearby Chamaeleon I star-forming region. In particular, w…