2015ApJ...804...35R

Query : 2015ApJ...804...35R

2015ApJ...804...35R - Astrophys. J., 804, 35 (2015/May-1)

Particle trapping and streaming instability in vortices in protoplanetary disks.

RAETTIG N., KLAHR H. and LYRA W.

Abstract (from CDS):

We analyze the concentration of solid particles in vortices created and sustained by radial buoyancy in protoplanetary disks, e.g., baroclinic vortex growth. Besides the gas drag acting on particles, we also allow for back-reaction from dust onto the gas. This becomes important when the local dust-to-gas ratio approaches unity. In our two-dimensional, local, shearing sheet simulations, we see high concentrations of grains inside the vortices for a broad range of Stokes numbers, St. An initial dust-to-gas ratio of 1:100 can easily be reversed to 100:1 for St = 1.0. The increased dust-to-gas ratio triggers the streaming instability, thus counter-intuitively limiting the maximal achievable overdensities. We find that particle trapping inside vortices opens the possibility for gravity assisted planetesimal formation even for small particles (St = 0.01) and a low initial dust-to-gas ratio of 1:104, e.g., much smaller than in the previously studied magnetohydrodynamic zonal flow case.

Abstract Copyright: ∼

Journal keyword(s): accretion, accretion disks - hydrodynamics - instabilities - methods: numerical - turbulence

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 - 2026 		#notes
1 * 51 Peg PM* 22 57 27.9804852576 +20 46 07.797040104 6.39 6.16 5.46 4.97 4.61 G2IV 1203 1

Query : 2015ApJ...804...35R

Basic data :
* 51 Peg -- High Proper Motion 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: otypes_help 		V*? (), * (*,AG,...), PM* (2018yCat,LTT,...), ** (**,WDS), V* (CSV,NSV), Ro* (1996ApJ), UV (TD1), NIR (2MASS), IR (IRAS)
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''; as well as Tycho2, UCAC4, and Gaia DR2/3 without proper motions
    • B : 0.01-0.1''; as well as Tycho2 and UCAC4 with proper motions
    • A : Hipparcos and Gaia DR2/3 with proper motions; sometimes VLBI
  • bibcode : bibcode of the coordinates reference
ICRS coord. (ep=J2000) : 		22 57 27.9804852576 +20 46 07.797040104 (Optical) [ 0.0535 0.0543 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''; as well as Tycho2, UCAC4, and Gaia DR2/3 without proper motions
    • B : 0.01-0.1''; as well as Tycho2 and UCAC4 with proper motions
    • A : Hipparcos and Gaia DR2/3 with proper motions; sometimes VLBI
  • bibcode : bibcode of the coordinates reference
FK4 coord. (ep=B1950 eq=1950) : 		22 55 00.3825225993 +20 30 01.120017826 [ 0.0535 0.0543 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''; as well as Tycho2, UCAC4, and Gaia DR2/3 without proper motions
    • B : 0.01-0.1''; as well as Tycho2 and UCAC4 with proper motions
    • A : Hipparcos and Gaia DR2/3 with proper motions; sometimes VLBI
  • bibcode : bibcode of the coordinates reference
Gal coord. (ep=J2000) : 		090.0626441289022 -34.7272597942784 [ 0.0535 0.0543 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 : 		207.328 61.164 [0.088 0.075 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) -33.165 [0.0006] / z(spectroscopic) -0.000111 [0.000000] / cz -33.16 [0.00]
   (Opt) A 2018A&A...616A...7S
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): 		64.4048 [0.0771] 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
  • bibcode : bibcode of the spectral type reference
Spectral type: 		G2IV B 1989ApJS...71..245K
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 (9) :
U 6.39 [~] C 2002yCat.2237....0D
B 6.16 [~] C 2002yCat.2237....0D
V 5.46 [0.05] C 2009ApJ...694.1085V
R 4.97 [~] C 2002yCat.2237....0D
G 5.283212 [0.002831] C 2020yCat.1350....0G
I 4.61 [~] C 2002yCat.2237....0D
J 4.66 [0.30] D 2003yCat.2246....0C
H 4.23 [0.27] D 2003yCat.2246....0C
K 3.911 [0.021] C 2003yCat.2246....0C
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Some important notes on this object about identifications and objects associations.
notes:

Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (46) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

LTT 16750 GJ 882 NSV 14374 UBV 19678
* 51 Peg HD 217014 PLX 5568 USNO-B1.0 1107-00589893
** RBR 21A HIC 113357 PLX 5568.00 uvby98 100217014
AG+20 2595 HIP 113357 PPM 114985 WDS J22575+2046A
AKARI-IRC-V1 J2257280+204608 HR 8729 ROT 3341 WEB 20165
ASCC 826013 IRAS 22550+2030 SAO 90896 YPAC 218
BD+19 5036 JP11 3558 SKY# 43603 YZ 0 1227
CNS5 5664 LSPM J2257+2046 SPOCS 990 YZ 20 9382
CSV 102222 2MASS J22572795+2046077 TD1 29480 Gaia DR3 2835207319109249920
GC 32003 N30 5052 TIC 139298196 Gaia DR2 2835207319109249920
GCRV 14411 NAME Helvetios TYC 1717-2193-1
GEN# +1.00217014 NLTT 55385 UBV M 26734

References (1203 between 1850 and 2026) (Total 1203)
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 Description of Measurements Observing logs

External archives :

Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

Data at NED - NASA/IPAC Extragalactic Database : * 51 Peg

Link by name to the catalogue in VizieR :

AG+20 2595 AKARI-IRC-V1 J2257280+204608 BD+19 5036 GJ 882 HD 217014
HIC 113357 HIP 113357 HR 8729 IRAS 22550+2030 LSPM J2257+2046
2MASS J22572795+2046077 NLTT 55385 NSV 14374 PLX 5568 PPM 114985
SAO 90896 TD1 29480 TYC 1717-2193-1 USNO-B1.0 1107-00589893 uvby98 100217014
WDS J22575+2046A Gaia DR3 2835207319109249920 Gaia DR2 2835207319109249920

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