Overshoot inwards from the bottom of the intershell convective zone in (S)AGB stars

J C Lattanzio; C A Tout; E V Neumerzhitckii; A I Karakas; P Lesaffre

Overshoot inwards from the bottom of the intershell convective zone in (S)AGB stars

J C Lattanzio, C A Tout, E V Neumerzhitckii, A I Karakas, P Lesaffre

School of Physics and Astronomy

Research output: Contribution to journal › Article › Research › peer-review

8 Citations (Scopus)

Abstract

We estimate the extent of overshooting inwards from the bottom of the intershell convective zone in thermal pulses in (S)AGB stars. We find that the buoyancy is so strong that any overshooting should be negligible. The temperature inversion at the bottom of the convective zone adds to the stability of the region. Any mixing that occurs in this region is highly unlikely to be due to convective overshooting, and so must be due to another process.

Original language	English
Pages (from-to)	248-251
Number of pages	4
Journal	Societa Astronomica Italiana. Memorie
Volume	88
Issue number	3
Publication status	Published - 2017
Event	The AGB-Supernovae Mass Transition 2017 - Observatory of Rome, Monte Porzio Catone, Italy Duration: 27 Mar 2017 → 31 Mar 2017 https://web.archive.org/web/20170111030144/http://agb-supernovae.weebly.com:80/ https://agb-supernovae.weebly.com/

Keywords

Stars: abundances
Stars: AGB
Stars: Evolution
Stars: mixing

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http://sait.oat.ts.astro.it/MSAIt880317/PDF/2017MmSAI..88..248C.pdf

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title = "Overshoot inwards from the bottom of the intershell convective zone in (S)AGB stars",

abstract = "We estimate the extent of overshooting inwards from the bottom of the intershell convective zone in thermal pulses in (S)AGB stars. We find that the buoyancy is so strong that any overshooting should be negligible. The temperature inversion at the bottom of the convective zone adds to the stability of the region. Any mixing that occurs in this region is highly unlikely to be due to convective overshooting, and so must be due to another process.",

keywords = "Stars: abundances, Stars: AGB, Stars: Evolution, Stars: mixing",

author = "Lattanzio, {J C} and Tout, {C A} and Neumerzhitckii, {E V} and Karakas, {A I} and P Lesaffre",

year = "2017",

language = "English",

volume = "88",

pages = "248--251",

journal = "Societa Astronomica Italiana. Memorie",

issn = "0037-8720",

publisher = "Fabrizio Serra Editore",

number = "3",

note = "The AGB-Supernovae Mass Transition 2017 ; Conference date: 27-03-2017 Through 31-03-2017",

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TY - JOUR

T1 - Overshoot inwards from the bottom of the intershell convective zone in (S)AGB stars

AU - Lattanzio, J C

AU - Tout, C A

AU - Neumerzhitckii, E V

AU - Karakas, A I

AU - Lesaffre, P

PY - 2017

Y1 - 2017

N2 - We estimate the extent of overshooting inwards from the bottom of the intershell convective zone in thermal pulses in (S)AGB stars. We find that the buoyancy is so strong that any overshooting should be negligible. The temperature inversion at the bottom of the convective zone adds to the stability of the region. Any mixing that occurs in this region is highly unlikely to be due to convective overshooting, and so must be due to another process.

AB - We estimate the extent of overshooting inwards from the bottom of the intershell convective zone in thermal pulses in (S)AGB stars. We find that the buoyancy is so strong that any overshooting should be negligible. The temperature inversion at the bottom of the convective zone adds to the stability of the region. Any mixing that occurs in this region is highly unlikely to be due to convective overshooting, and so must be due to another process.

KW - Stars: abundances

KW - Stars: AGB

KW - Stars: Evolution

KW - Stars: mixing

UR - http://www.scopus.com/inward/record.url?scp=85064394143&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:85064394143

SN - 0037-8720

VL - 88

SP - 248

EP - 251

JO - Societa Astronomica Italiana. Memorie

JF - Societa Astronomica Italiana. Memorie

IS - 3

T2 - The AGB-Supernovae Mass Transition 2017

Y2 - 27 March 2017 through 31 March 2017

ER -

Overshoot inwards from the bottom of the intershell convective zone in (S)AGB stars

Abstract

Keywords

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