S. Mac Manamon

The ALMA survey to Resolve exoKuiper belt Substructures (ARKS)

J. Olofsson, M. R. Jankovic, S. Marino, A. V. Krivov et autres

Context. The dust observed in debris disks is the result of a collisional cascade initiated from approximately kilometer-sized parent bodies. Using near-infrared to submillimeter observations, we can probe particle sizes spanning 2-3 orders of magnitude, and with sufficient angular resolution we can …

de, rs, gb, fr, jp, us, ie, es, cl, ru (code pays fourni par la source)

The ALMA survey to Resolve exoKuiper belt Substructures (ARKS)

J. Olofsson, M. R. Jankovic, S. Marino, A. V. Krivov et autres

Context . The dust observed in debris disks is the result of a collisional cascade initiated from approximately kilometer-sized parent bodies. Using near-infrared to submillimeter observations, we can probe particle sizes spanning 2-3 orders of magnitude, and with sufficient angular resolution we …

rs, gb, de, fr, jp, us, ca, ie, es, cl, pt, ru (code pays fourni par la source)

The ALMA survey to Resolve exoKuiper belt Substructures (ARKS)

S. Marino, V. Gupta, P. Weber, T. D. Pearce et autres

Context. ExoKuiper belts around young A-type stars often host CO gas, whose origin is still unclear. The ALMA survey to Resolve exoKuiper belt Substructures (ARKS) includes six of these gas-bearing belts, to characterise their dust and gas distributions and investigate the gas …

gb, ie, fr, us, rs, hu, de, ru (code pays fourni par la source)

The ALMA survey to Resolve exoKuiper belt Substructures (ARKS)

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 sufficiently …

The ALMA survey to Resolve exoKuiper belt Substructures (ARKS)

J. Milli, J. Olofsson, M. Bonduelle, R. 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 probe …

fr, de, gb, tw, us, ie, es, cl, rs, ca, hu, at (code pays fourni par la source)

The ALMA survey to Resolve exoKuiper belt Substructures (ARKS)

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 these …

us, fr, de, gb, ie, jp, rs, nz, tw, hu, cl (code pays fourni par la source)

The ALMA survey to Resolve exoKuiper belt Substructures (ARKS)

A. Brennan, L. 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 model local …

The ALMA survey to Resolve exoKuiper belt Substructures (ARKS)

S. Marino, L. 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, and …

gb, ie, us, de, nz, es, rs, fr, cl, hu (code pays fourni par la source)

The ALMA survey to Resolve exoKuiper belt Substructures (ARKS)

M. R. Jankovic, N. Pawellek, J. Zander, T. Löhne et autres

Context. Dusty discs detected around main-sequence stars are thought to be signs of planetesimal belts in which the dust distribution is shaped by collisional and dynamical processes, including interactions with gas if present. The debris disc around the young A-type star HD …

ie, fr, gb, ru, us, es, hu, de, cl (code pays fourni par la source)

The ALMA survey to Resolve exoKuiper belt Substructures (ARKS)

P. Weber, S. Pérez, C. Baruteau, S. Marino et autres

Context. Debris discs were long considered to be largely gas-free environments, where dynamical evolution is governed primarily by collisional fragmentation, gravitational stirring, and radiative forces. Recent detections of CO molecular line emission in debris discs demonstrate that gas is present, but its …

fr, gb, rs, ru, us, de, jp, es, ie, cl (code pays fourni par la source)

The ALMA survey to Resolve exoKuiper belt Substructures (ARKS)

S. Mac Manamon, L. Matrà, S. Marino, A. 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 only …

The ALMA survey to Resolve exoKuiper belt Substructures (ARKS)

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 (code pays fourni par la source)