CDS

2003A&A...407..191J

Query : 2003A&A...407..191J

2003A&A...407..191J - Astronomy and Astrophysics, volume 407, 191-206 (2003/8-3)

Self-consistent modeling of the outflow from the O-rich Mira IRC -20197.

JEONG K.S., WINTERS J.M., LE BERTRE T. and SEDLMAYR E.

Abstract (from CDS):

We present a self-consistent time-dependent model for the oxygen-rich Mira variable IRC -20197. This model includes a consistent treatment of the interactions among hydrodynamics, thermodynamics, radiative transfer, equilibrium chemistry, and heterogeneous dust formation with TiO2 nuclei. The model is determined by the stellar parameters, stellar mass M*=1.3M☉, stellar luminosity L*=1.4x104L☉, stellar temperature T*=2400K, and solar abundances of the elements. The pulsation of the star is simulated by a piston at the inner boundary where the velocity varies sinusoidally with a period of P = 636 d and an amplitude of Δvp=8km/s. Based on the atmospheric structure resulting from this hydrodynamic calculation at different phases, we have performed angle- and frequency-dependent continuum radiation transfer calculations, which result in the spectral energy distributions at different phases of the pulsation cycle and in synthetic light curves at different wavelengths. These are in good agreement with the infrared observations of IRC -20197. The model yields a time averaged outflow velocity of 11.9km/s and an average mass loss rate of 7.3x10–6M☉/yr which are in good agreement with the values derived from radio observations. Furthermore, the chemical composition of the resulting grains is discussed.

Abstract Copyright: ∼

Journal keyword(s): hydrodynamics - radiative transfer - stars: winds, outflows - stars: circumstellar matter - stars: AGB, post-AGB - stars: individual: IRC -20197

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023 		#notes
1 V* IW Hya OH* 09 45 15.2390936088 -22 01 45.329402244     16     M8/9 110 0

Query : 2003A&A...407..191J

Basic data :
V* IW Hya -- OH/IR Star
Origin of the objects types :

(Ref) Object type as listed in the reference "Ref"
(acronym) Object type linked to the acronym according to the original reference
() Anterior to 2007, before we can link the objet type to a reference, or given by the CDS team in some particular cases

Other object types: 		* (RAVE,[LFO93],...), Mas ([PCC93],[TCH91],...), IR (IRC,IRAS,...), OH* (1972A&A), V* (V*,[WWV2004]), MIR (WISEA,WISE), Mi* (2004AJ), Mi? (2009yCat)
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
ICRS coord. (ep=J2000) : 		09 45 15.2390936088 -22 01 45.329402244 (Optical) [ 0.2582 0.2329 90 ] A 2020yCat.1350....0G
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
FK4 coord. (ep=B1950 eq=1950) : 		09 42 56.5619594225 -21 47 54.288787636 [ 0.2582 0.2329 90 ]
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
Gal coord. (ep=J2000) : 		255.7958055831327 +23.3526970446770 [ 0.2582 0.2329 90 ]
Syntax of proper motions is : "pm-ra pm-dec [error ellipse] quality bibcode"
  • pm-ra : mu-ra*cos(dec) (expressed in the ICRS system in mas/yr)
  • pm-dec : mu-dec (expressed in the ICRS system in mas/yr)
  • [error ellipse] : error major axis and minor axis (in mas), orientation angle (in deg)
  • quality : flag of quality (A=best quality -> E=worst quality, {� } =unknown quality)
  • bibcode : bibcode of the proper motion reference
Proper motions mas/yr : 		-11.963 3.151 [0.298 0.277 90] A 2020yCat.1350....0G
Syntax of radial velocity (or/and redshift) is : "value [error] (wavelength) quality bibcode"
  • value : radial velocity or/and redshift (Heliocentric frame) according to your Output Options
    (redshift may be not displayed if the data value is <0 and the database inside value is a radial velocity)
  • [error] : error of the corresponding value displayed before
  • (wavelength) : wavelength range of the measurement : Rad, mm, IR, Opt, UV, Xray, Gam or  '∼'(unknown)
  • quality : flag of quality ( A=best quality -> E=worst quality, {� } =unknown quality)
  • bibcode : bibcode of the value's origin
Radial velocity / Redshift / cz : 		V(km/s) 54 [~] / z(~) 0.000180 [~] / cz 54.00 [~]
   D 2000MNRAS.317..460F
Velocity of Local System : VSLR Vmin Vmax [error] (wavelength) bibcode
VLSR : 		40.00 27.8 52.2 [1.0] (Rad) 1991A&AS...90..327T
Syntax of parallax is : 'value quality [error] bibcode'
  • value : parallax value
  • quality : flag of quality (A=best quality -> E=worst quality, {� } =unknown quality)
  • [error] : mean error
  • bibcode : bibcode of the parallax reference
Parallaxes (mas): 		0.4748 [0.2999] A 2020yCat.1350....0G
Spectral type is made of 3 parts: %coding is composed of 4 parts :
  • the spectral type, which is made of a temperature class, eventually a luminosity class (roman number) and/or spectral peculiarities;
  • a quality letter: A=best quality→E=worst quality, {� } =unknown quality %
  • a quality letter: A=best quality -> E=worst quality, {� } =unknown quality
  • bibcode : bibcode of the spectral type reference
Spectral type: 		M8/9 D 1993A&A...278..167S
Syntax of fluxes (or magnitudes) is : "filter-name (System) flux-value [error] quality MultVarFlags bibcode"
  • filter-name : U, B, V, R, I, G, J, H, K, u, g, r, i, z
  • (System) : may be AB (default is Vega)
  • flux-value : value of flux or magnitude
  • [error] : error value
  • quality : flag of quality of the flux value ( A=best quality -> E=worst quality, {� } =unknown quality)
  • MultVarFlags : Mult is zero or one char (J) for joined photometry ; Var can be zero or two chars (V[0-4])
  • bibcode : bibcode of the flux reference
Fluxes (5) :
V 16 [~] D 1975AJ.....80.1011H
G 12.183779 [0.026529] C 2020yCat.1350....0G
J 5.025 [0.032] C 2003yCat.2246....0C
H 3.202 [0.216] D 2003yCat.2246....0C
K 1.96 [0.24] D 2003yCat.2246....0C
SIMBAD within arcmin
', {sourceSize:12, color:'#30a090'})); aladin.on('objectClicked', function(object) { var objName=object.data.MAIN_ID; aladin.showPopup(object.ra,object.dec,'',''+ objName+''); });" title="Show Simbad objects"> Overlay Simbad points in this preview
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The search radius has to be specified by the user. It is currently limited to a maximum of 30 arcsec. It depends mostly on the precision or quality of the coordinates (SIMBAD and VizieR catalogs), the resolution of the images from which the sources were extracted, source extent, and source crowding.
Suggestions are: crowded field: 0.5 to 1.5 arcsec, 3 arcsec otherwise; uncertain coordinates (SIMBAD quality E or coordinates without reference): 5 to 30 arsec (risky!). sed-help-icon

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (16) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

IRC -20197 RAVE J094515.2-220145 WISE J094515.19-220145.4 [TVH89] 26
IRAS 09429-2148 TIC 418100222 [LFO93] 0942-21 [WWV2004] J0945152-220143
2MASS J09451524-2201452 V* IW Hya [PCC93] 132 Gaia DR3 5664214556572301824
RAFGL 5259 WISEA J094515.24-220145.2 [TCH91] 09429-2148 Gaia DR2 5664214556570950528

References (110 between 1850 and 2023) (Total 110)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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Collections of Measurements


velocities : 2    V* : 1    Fe_H : 1    PLX : 1    PM : 1    MK : 3   

   

External archives :

Data at NED - NASA/IPAC Extragalactic Database : V* IW Hya

Link by name to the catalogue in VizieR :

IRC -20197 IRAS 09429-2148 2MASS J09451524-2201452 RAFGL 5259 RAVE J094515.2-220145
V* IW Hya WISEA J094515.24-220145.2 WISE J094515.19-220145.4 Gaia DR3 5664214556572301824 Gaia DR2 5664214556570950528

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2023.03.30-06:43:24

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