3D hydrodynamical models of point-symmetric planetary nebulae: The special case of H1-67

J. S. Rechy-García, M. Peña, P. F. Velázquez

Resultado de la investigación: Contribución a una revistaArtículo

Resumen

We present 3D hydrodynamical simulations of a precessing jet with a time-dependent ejection velocity or a time-dependent ejection density, interactingwith a circumstellarmedium given by a dense, anisotropic, and slow AGB wind, forming a torus. We explore a set of configurations with different values for the precession angle and number of ejections. The temporal evolution of these models is analysed at times up to 1500 or 1800 yr. From our hydrodynamical models, we obtain position-velocity diagrams (PV diagrams) in the [NII] λ6583 line to be compared with high-resolution observations of the planetary nebula H1-67. From spectral data, this object shows high-velocity jets and a point-symmetric morphology. With our synthetic PV diagrams, we show that a precessing jet with a time-dependent ejection velocity or a timedependent ejection density reproduce the point-symmetric morphological structure for this nebula if the precession cone angle is larger than 30°. Our synthetic PV diagrams can be used to understand how the S-like morphology, also presented by other planetary nebulae, is formed. For H1-67, we found a heliocentric velocity of -8.05 km s-1 and height below the galactic plane of -451.6 pc.

Idioma originalInglés
Páginas (desde-hasta)1163-1175
Número de páginas13
PublicaciónMonthly Notices of the Royal Astronomical Society
Volumen482
N.º1
DOI
EstadoPublicada - 1 ene 2019

Huella dactilar

planetary nebulae
ejection
diagram
diagrams
precession
temporal evolution
nebulae
cones
high resolution
configurations
simulation

Citar esto

@article{97262a0faa0b4971bc88687be74f77db,
title = "3D hydrodynamical models of point-symmetric planetary nebulae: The special case of H1-67",
abstract = "We present 3D hydrodynamical simulations of a precessing jet with a time-dependent ejection velocity or a time-dependent ejection density, interactingwith a circumstellarmedium given by a dense, anisotropic, and slow AGB wind, forming a torus. We explore a set of configurations with different values for the precession angle and number of ejections. The temporal evolution of these models is analysed at times up to 1500 or 1800 yr. From our hydrodynamical models, we obtain position-velocity diagrams (PV diagrams) in the [NII] λ6583 line to be compared with high-resolution observations of the planetary nebula H1-67. From spectral data, this object shows high-velocity jets and a point-symmetric morphology. With our synthetic PV diagrams, we show that a precessing jet with a time-dependent ejection velocity or a timedependent ejection density reproduce the point-symmetric morphological structure for this nebula if the precession cone angle is larger than 30°. Our synthetic PV diagrams can be used to understand how the S-like morphology, also presented by other planetary nebulae, is formed. For H1-67, we found a heliocentric velocity of -8.05 km s-1 and height below the galactic plane of -451.6 pc.",
keywords = "Hydrodynamics - methods: numerical -methods: observational - ISM: jets and outflows - planetary nebulae: general",
author = "Rechy-Garc{\'i}a, {J. S.} and M. Pe{\~n}a and Vel{\'a}zquez, {P. F.}",
year = "2019",
month = "1",
day = "1",
doi = "10.1093/mnras/sty2758",
language = "Ingl{\'e}s",
volume = "482",
pages = "1163--1175",
journal = "Monthly Notices of the Royal Astronomical Society",
issn = "0035-8711",
publisher = "Oxford University Press",
number = "1",

}

3D hydrodynamical models of point-symmetric planetary nebulae : The special case of H1-67. / Rechy-García, J. S.; Peña, M.; Velázquez, P. F.

En: Monthly Notices of the Royal Astronomical Society, Vol. 482, N.º 1, 01.01.2019, p. 1163-1175.

Resultado de la investigación: Contribución a una revistaArtículo

TY - JOUR

T1 - 3D hydrodynamical models of point-symmetric planetary nebulae

T2 - The special case of H1-67

AU - Rechy-García, J. S.

AU - Peña, M.

AU - Velázquez, P. F.

PY - 2019/1/1

Y1 - 2019/1/1

N2 - We present 3D hydrodynamical simulations of a precessing jet with a time-dependent ejection velocity or a time-dependent ejection density, interactingwith a circumstellarmedium given by a dense, anisotropic, and slow AGB wind, forming a torus. We explore a set of configurations with different values for the precession angle and number of ejections. The temporal evolution of these models is analysed at times up to 1500 or 1800 yr. From our hydrodynamical models, we obtain position-velocity diagrams (PV diagrams) in the [NII] λ6583 line to be compared with high-resolution observations of the planetary nebula H1-67. From spectral data, this object shows high-velocity jets and a point-symmetric morphology. With our synthetic PV diagrams, we show that a precessing jet with a time-dependent ejection velocity or a timedependent ejection density reproduce the point-symmetric morphological structure for this nebula if the precession cone angle is larger than 30°. Our synthetic PV diagrams can be used to understand how the S-like morphology, also presented by other planetary nebulae, is formed. For H1-67, we found a heliocentric velocity of -8.05 km s-1 and height below the galactic plane of -451.6 pc.

AB - We present 3D hydrodynamical simulations of a precessing jet with a time-dependent ejection velocity or a time-dependent ejection density, interactingwith a circumstellarmedium given by a dense, anisotropic, and slow AGB wind, forming a torus. We explore a set of configurations with different values for the precession angle and number of ejections. The temporal evolution of these models is analysed at times up to 1500 or 1800 yr. From our hydrodynamical models, we obtain position-velocity diagrams (PV diagrams) in the [NII] λ6583 line to be compared with high-resolution observations of the planetary nebula H1-67. From spectral data, this object shows high-velocity jets and a point-symmetric morphology. With our synthetic PV diagrams, we show that a precessing jet with a time-dependent ejection velocity or a timedependent ejection density reproduce the point-symmetric morphological structure for this nebula if the precession cone angle is larger than 30°. Our synthetic PV diagrams can be used to understand how the S-like morphology, also presented by other planetary nebulae, is formed. For H1-67, we found a heliocentric velocity of -8.05 km s-1 and height below the galactic plane of -451.6 pc.

KW - Hydrodynamics - methods: numerical -methods: observational - ISM: jets and outflows - planetary nebulae: general

UR - http://www.scopus.com/inward/record.url?scp=85057149085&partnerID=8YFLogxK

U2 - 10.1093/mnras/sty2758

DO - 10.1093/mnras/sty2758

M3 - Artículo

AN - SCOPUS:85057149085

VL - 482

SP - 1163

EP - 1175

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

SN - 0035-8711

IS - 1

ER -