The most direct and substantial way to measure the geochemistry of extrasolar objects is to perform chemical autopsies on their broken-up remains. However, traditional ways of …
CE O'Connor, L Bildsten, M Cantiello… - The Astrophysical …, 2023 - iopscience.iop.org
About ten percent of Sun-like (1–2 M⊙) stars will engulf a 1–10 MJ planet as they expand during the red giant branch (RGB) or asymptotic giant branch (AGB) phase of their evolution …
Abstract The MIRI Exoplanets Orbiting White dwarfs survey is a cycle 2 JWST program to search for exoplanets around dozens of nearby white dwarfs via infrared excess and direct …
SE Mullally, J Debes, M Cracraft… - The Astrophysical …, 2024 - iopscience.iop.org
We report the discovery of two directly imaged, giant planet candidates orbiting the metal- rich, hydrogen atmosphere white dwarfs WD 1202− 232 and WD 2105− 82. JWST's Mid …
E Bachelet, D Specht, M Penny, M Hundertmark… - Astronomy & …, 2022 - aanda.org
As the Kepler mission has done for hot exoplanets, the ESA Euclid and NASA Roman missions have the potential to create a breakthrough in our understanding of the …
CJ Manser, BT Gänsicke, K Inight… - Monthly Notices of …, 2023 - academic.oup.com
ABSTRACT A new class of white dwarfs, dubbed DAHe, that present Zeeman-split Balmer lines in emission has recently emerged. However, the physical origin of these emission lines …
AK Elms, PE Tremblay, BT Gänsicke… - Monthly Notices of …, 2023 - academic.oup.com
Two recently discovered white dwarfs, WD J041246. 84+ 754942.26 and WD J165335. 21− 100116.33, exhibit Hα and Hβ Balmer line emission similar to stars in the emerging DAHe …
S Blouin, S Xu - Monthly Notices of the Royal Astronomical …, 2022 - academic.oup.com
ABSTRACT A large fraction of white dwarfs are accreting or have recently accreted rocky material from their planetary systems, thereby 'polluting'their atmospheres with elements …
We demonstrate that the James Webb Space Telescope (JWST) can detect infrared (IR) excess from the blended light spectral energy distribution of spatially unresolved terrestrial …