Search Publications
Missions
Journals
Publication Years
The Tarantula Massive Binary Monitoring. V. R 144: a wind-eclipsing binary with a total mass ≳140 M⊙
Howarth, I. D.; Crowther, P. A.; de Mink, S. E. +21 more
Context. The evolution of the most massive stars and their upper-mass limit remain insufficiently constrained. Very massive stars are characterized by powerful winds and spectroscopically appear as hydrogen-rich Wolf-Rayet (WR) stars on the main sequence. R 144 is the visually brightest WR star in the Large Magellanic Cloud. R 144 was reported to …
Generation of interplanetary type II radio emission
Jebaraj, I. C.; Mann, G.; Poedts, S. +4 more
Context. Coronal mass ejections (CMEs) are eruptive phenomena that can accelerate energetic particles and drive shock waves. The CME-driven shocks propagate from the low corona to interplanetary space. The radio emission that results from fast electrons energised by shock waves are called type II bursts. This radio emission can provide information…
TOI-1634 b: An Ultra-short-period Keystone Planet Sitting inside the M-dwarf Radius Valley
López-Morales, Mercedes; Bieryla, Allyson; Latham, David W. +63 more
Studies of close-in planets orbiting M dwarfs have suggested that the M-dwarf radius valley may be well explained by distinct formation timescales between enveloped terrestrials and rocky planets that form at late times in a gas-depleted environment. This scenario is at odds with the picture that close-in rocky planets form with a primordial gaseo…
ALMA and IRIS Observations of the Solar Chromosphere. I. An On-disk Type II Spicule
Martínez-Sykora, Juan; De Pontieu, Bart; Chintzoglou, Georgios +7 more
We present observations of the solar chromosphere obtained simultaneously with the Atacama Large Millimeter/submillimeter Array (ALMA) and the Interface Region Imaging Spectrograph. The observatories targeted a chromospheric plage region of which the spatial distribution (split between strongly and weakly magnetized regions) allowed the study of l…
Long-term pulse period evolution of the ultra-luminous X-ray pulsar NGC 7793 P13
Ptak, A.; Stern, D.; Fabian, A. C. +14 more
Ultra-luminous X-ray pulsars (ULXPs) provide a unique opportunity to study persistent super-Eddington accretion. Here we present the results of a long-term monitoring campaign of ULXP NGC 7793 P13, focusing on the pulse period evolution and the determination of the orbital ephemeris. Over our four year monitoring campaign with Swift, XMM-Newton, a…
The Far Ultraviolet M-dwarf Evolution Survey. I. The Rotational Evolution of High-energy Emissions
France, Kevin; Youngblood, Allison; Pineda, J. Sebastian
M-dwarf stars are prime targets for exoplanet searches because of their close proximity and favorable properties for both planet detection and characterization. However, the potential habitability and atmospheric characterization of these exoplanetary systems depends critically on the history of high-energy stellar radiation from X-rays to NUV, wh…
Sum of the masses of the Milky Way and M31: A likelihood-free inference approach
Lahav, Ofer; Hoffman, Yehuda; Whiteway, Lorne +3 more
We use density estimation likelihood-free inference, Λ cold dark matter simulations of ∼2 M galaxy pairs, and data from Gaia and the Hubble Space Telescope to infer the sum of the masses of the Milky Way and Andromeda (M31) galaxies, the two main components of the local group. This method overcomes most of the approximations of the traditional tim…
Obliquity Constraints on the Planetary-mass Companion HD 106906 b
Morley, Caroline V.; Bowler, Brendan P.; Bryan, Marta L. +2 more
We constrain the angular momentum architecture of HD 106906, a 13 ± 2 Myr old system in the ScoCen complex composed of a compact central binary, a widely separated planetary-mass tertiary HD 106906 b, and a debris disk nested between the binary and tertiary orbital planes. We measure the orientations of three vectors: the companion spin axis, comp…
The impact of mixing treatments on cloud modelling in 3D simulations of hot Jupiters
Sing, D. K.; Parmentier, V.; Mikal-Evans, T. +7 more
We present results of 3D hydrodynamical simulations of HD209458b including a coupled, radiatively active cloud model (EDDYSED). We investigate the role of the mixing by replacing the default convective treatment used in previous works with a more physically relevant mixing treatment (Kzz) based on global circulation. We find that uncert…
Automated Multi-Dataset Analysis (AMDA): An on-line database and analysis tool for heliospheric and planetary plasma data
André, N.; Fedorov, A.; Budnik, E. +27 more
Accessing, visualizing and analyzing heterogeneous plasma datasets has always been a tedious task that hindered students and senior researchers as well. Offering user friendly and versatile tools to perform basic research tasks is therefore pivotal for data centres including the Centre de Données de la Physique des Plasmas (CDPP http://www.cdpp.eu…