In a population of multiple protostellar systems with discs, the sub-population of circumbinary discs whose orbital plane is highly misaligned with respect to the binary's orbital plane constrains the initial distribution of orbital parameters of the whole population. We show that by measuring the polar disc fraction and the average orbital eccentricity in the polar discs, one can constrain the distributions of initial eccentricity and mutual inclination in multiple stellar systems at birth.

Probing initial distributions of orbital eccentricity and disc misalignment via polar discs / S. Ceppi, N. Cuello, G. Lodato, C. Longarini, D.J. Price, D. Elsender, M.R. Bate. - In: ASTRONOMY & ASTROPHYSICS. - ISSN 0004-6361. - 682:(2024), pp. A104.1-A104.7. [10.1051/0004-6361/202348375]

Probing initial distributions of orbital eccentricity and disc misalignment via polar discs

S. Ceppi
Primo
;
G. Lodato;C. Longarini;
2024

Abstract

In a population of multiple protostellar systems with discs, the sub-population of circumbinary discs whose orbital plane is highly misaligned with respect to the binary's orbital plane constrains the initial distribution of orbital parameters of the whole population. We show that by measuring the polar disc fraction and the average orbital eccentricity in the polar discs, one can constrain the distributions of initial eccentricity and mutual inclination in multiple stellar systems at birth.
accretion, accretion disks; hydrodynamics; methods: analytical; methods: statistical; protoplanetary disks; binaries: close;
Settore FIS/05 - Astronomia e Astrofisica
   Dust and gas in planet forming discs (DUSTBUSTER)
   DUSTBUSTER
   EUROPEAN COMMISSION
   H2020
   823823
2024
8-feb-2024
Article (author)
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/1049869
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