Search Publications
Missions
Journals
Publication Years
The only inflated brown dwarf in an eclipsing white dwarf-brown dwarf binary: WD1032+011B
Mayorga, L. C.; Lothringer, Joshua D.; Parmentier, Vivien +9 more
Due to their short orbital periods and relatively high-flux ratios, irradiated brown dwarfs in binaries with white dwarfs offer better opportunities to study irradiated atmospheres than hot Jupiters, which have lower planet-to-star flux ratios. WD1032+011 is an eclipsing, tidally locked white dwarf-brown dwarf binary with a 9950 K white dwarf orbi…
A unified framework for global auroral morphologies of different planets
Merkin, V. G.; Lyon, J. G.; Delamere, P. A. +8 more
Planetary magnetic fields control energetic particles in their space environments and guide particles to polar atmospheres, where they produce stunning auroral forms. As revealed by spacecraft measurements of the Earth, Saturn and Jupiter, the pathways of energetic particles to these planetary polar atmospheres are diverse, suggesting that there a…
The SAMI galaxy survey: on the importance of applying multiple selection criteria for finding Milky Way analogues
Bland-Hawthorn, Joss; van de Sande, Jesse; Sweet, Sarah M. +10 more
Milky Way analogues (MWAs) provide an alternative insight into the various pathways that lead to the formation of disc galaxies with similar properties to the Milky Way (MW). In this study, we explore different selection techniques for identifying MWAs in the Sydney-AAO (Australian Astronomical Observatory) Multi-object Integral field spectrograph…
The "C": The large Chameleon-Musca-Coalsack cloud
Alves, João; Zucker, Catherine; Edenhofer, Gordian +2 more
Recent advancements in 3D dust mapping have transformed our understanding of the Milky Way's local interstellar medium, enabling us to explore its structure in three spatial dimensions for the first time. In this Letter, we use the most recent 3D dust map by Edenhofer et al. to study the well-known Chameleon, Musca, and Coalsack cloud complexes, l…
The Morphology of Martian Pyroclastic Ramparts and Their Use in Determining Vent-Proximal Eruption Dynamics
Wilson, L.; Pieterek, B.; Jones, T. J.
High-resolution investigations of Late Amazonian volcanic landforms provide previously unrevealed insights into the dynamics of Martian volcanic eruptions. On Earth, the formation of vent-proximal accumulations of spatter deposits is attributed to low-intensity lava fountaining episodes representing eruptions on the very edge of explosive activity…
Stellar Cycle and Evolution of Polar Spots in an M+WD Binary
Liu, Jifeng; Wang, Song; Zhao, Xinlin +5 more
Stellar activity cycles reveal continuous relaxation and induction of magnetic fields. The activity cycle is typically traced through the observation of cyclic variations in total brightness or Ca H&K emission flux of stars, as well as cyclic variations in the orbital periods of binary systems. In this work, we report the identification of a s…
Lyα Absorption in a "Croissant-like" Heliosphere
Wood, Brian E.; Tenishev, Valeriy; Toth, Gabor +6 more
Lyα absorption profiles have been used to detect astrospheres and heliospheric absorption from the hydrogen wall and heliotail. Using magnetohydrodynamic models of the heliosphere, we can compare simulated to observed Lyα profiles to probe the neutral hydrogen within and near the heliosphere. There is an ongoing controversy whether the heliosphere…
Host galaxy of low-luminosity compact sources
Ciroi, S.; Berton, M.; Sani, E. +6 more
The term 'active galactic nuclei' (AGN) is applied to a huge variety of objects, classified on the basis of their properties at different wavelengths. Peaked sources (PSs) represent a class of AGN at the first stage of evolution, characterised by a peaked radio spectrum. Among these radio sources, low-luminosity compact (LLC) sources can be identi…
Lunar elemental abundances as derived from Chandrayaan-2
Bhatt, M.; Narendranath, S.; Pillai, Netra S. +6 more
The distribution of Mg, Al, Si, Ca and Fe on the lunar surface are important to understand the petrological characteristics of the Moon and its geological evolution. We derived new elemental distribution maps using the Chandrayaan-2 Large Area Soft X-ray Spectrometer (CLASS) experiment onboard the Chandrayaan-2 Orbiter. These are the first set of …
The PSF smoothing effect on concentration-related parameters of high-redshift galaxies in HST and JWST
Ho, Luis C.; Zhuang, Ming-Yang; Li, Zhao-Yu +2 more
Aims: We performed a comprehensive investigation of the PSF smoothing effect on the measurement of concentration-related parameters (C, Gini, and M20) of high-redshift galaxies in the HST and JWST surveys.
Methods: Our sample contains massive galaxies (109.5 M⊙ ≤ M* ≤ 1011.5 M⊙<…