Accès ouvert
2026
article
OpenAlex
S. Mac Manamon, Luca Matrà, S. Marino, Aoife Brennan et autres
Context . CO gas is detected in a significant number (~20) of debris discs (exoKuiper belts), but understanding its origin and evolution remains elusive. Crucial pieces of evidence are its mass and spectro-spatial distribution, which are coupled through optical depth and have …
ca, ie, gb, us, rs, cl, pt, fr, jp, hu, de, tw, ru, es
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Accès ouvert
2026
article
OpenAlex
B. Zawadzki, A. Fehr, A. Meredith Hughes, E. Mansell et autres
Context . Debris disks – collisionally sustained belts of dust and sometimes gas around main sequence stars – are remnants of planet formation processes and are found in systems ≳10 Myr old. Millimeter-wavelength observations are particularly important, as the grains probed by …
rs, us, fr, gb, ca, ie, es, cl, jp, de, nz, hu, tw, pt, ru
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Accès ouvert
2026
article
OpenAlex
S. Marino, Luca Matrà, A. Meredith Hughes, J. Ehrhardt et autres
Context . The outer regions of planetary systems host dusty debris discs analogous to the Kuiper belt (exoKuiper belts), which provide crucial constraints on planet formation and evolution processes. ALMA dust observations have revealed a great diversity in terms of radii, widths, …
gb, ca, ie, rs, nz, es, us, fr, cl, pt, de, ru, hu, jp, tw
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Accès ouvert
2026
article
OpenAlex
J. B. Lovell, A. S. Hales, G. M. Kennedy, S. Marino et autres
Context . Asymmetries in debris discs provide unique clues to understand the evolution and architecture of planetary systems. Previous studies of debris discs at (sub)millimetre wavelengths have suggested the presence of asymmetries in a wide variety of systems, yet the lack of …
us, cl, nz, gb, rs, ca, fr, ie, es, jp, de, tw, hu, ru, pt
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Accès ouvert
2026
article
OpenAlex
J. Milli, J. Olofsson, M. Bonduelle, Raphaël Bendahan-West et autres
Context . Debris discs are analogues to our own Kuiper belt around main-sequence stars and are therefore referred to as exoKuiper belts. They have been resolved at high angular resolution at wavelengths spanning the optical/near-infrared to the submillimetre-millimetre regime. Short wavelengths can …
fr, gb, tw, us, rs, ca, ie, es, cl, de, hu, pt, ru
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Accès ouvert
2026
article
OpenAlex
Aoife Brennan, Luca Matrà, S. Mac Manamon, S. Marino et autres
Context . CO gas has been detected in ~20 debris discs, typically classified as CO-poor or CO-rich. We present observations of the CO-rich HD 121617 debris disc as part of the ALMA survey to Resolve exoKuiper belt Substructures (ARKS). Aims . We …
ca, ie, gb, jp, rs, cl, pt, us, tw, hu, de, fr, ru, es
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Accès ouvert
2025
article
OpenAlex
Sarang Shah, J. P. Marshall, Carlos del Burgo, Gergely Hajdu et autres
ABSTRACT ASASSN-24fw, monitored by the All-Sky Automated Survey for SuperNovae, underwent a rapid and deep dimming event beginning in late 2024 and lasting until 2025 June. The pre-dimming spectral energy distribution indicates that ASASSN-24fw is an F-type main-sequence star with a persistent …
pl, in, tw, es, fr, us, nl
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