2021MNRAS.506.1148V

Query : 2021MNRAS.506.1148V

2021MNRAS.506.1148V - Mon. Not. R. Astron. Soc., 506, 1148-1164 (2021/September-1)

The entry geometry and velocity of planetary debris into the Roche sphere of a white dwarf.

VERAS D., GEORGAKARAKOS N., MUSTILL A.J., MALAMUD U., CUNNINGHAM T. and DOBBS-DIXON I.

Abstract (from CDS):

Our knowledge of white dwarf planetary systems predominately arises from the region within a few Solar radii of the white dwarfs, where minor planets breakup, form rings and discs, and accrete on to the star. The entry location, angle, and speed into this Roche sphere has rarely been explored but crucially determines the initial geometry of the debris, accretion rates on to the photosphere, and ultimately the composition of the minor planet. Here, we evolve a total of over 105 asteroids with single-planet N-body simulations across the giant branch and white dwarf stellar evolution phases to quantify the geometry of asteroid injection into the white dwarf Roche sphere as a function of planetary mass and eccentricity. We find that lower planetary masses increase the extent of anisotropic injection and decrease the probability of head-on (normal to the Roche sphere) encounters. Our results suggest that one can use dynamical activity within the Roche sphere to make inferences about the hidden architectures of these planetary systems.

Abstract Copyright: © 2021 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society

Journal keyword(s): Kuiper belt: general - minor planets, asteroids: general - planets and satellites: dynamical evolution and stability - stars: AGB and post-AGB - stars: evolution - white dwarfs

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 GALEX J104341.5+085558 WD* 10 43 41.5313708256 +08 55 58.340933400           DAZ 70 0

Query : 2021MNRAS.506.1148V

Basic data :
GALEX J104341.5+085558 -- White Dwarf
Other object types: otypes_help 		WD* (2006ApJS,WD,...), WD? (2018MNRAS), Opt (LAMOST,SDSS), PM* (2018yCat), * (Gaia), UV (GALEX)
ICRS coord. (ep=J2000) : 		10 43 41.5313708256 +08 55 58.340933400 (Optical) [ 0.0926 0.0859 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		10 41 04.1006033903 +09 11 45.960776979 [ 0.0926 0.0859 90 ]
Gal coord. (ep=J2000) : 		237.9680319817745 +54.7775115801641 [ 0.0926 0.0859 90 ]
Proper motions mas/yr : 		41.947 -47.693 [0.116 0.124 90] A 2020yCat.1350....0G
Radial velocity / Redshift / cz : 		V(km/s) 43 [6] / z(spectroscopic) 0.000143 [0.000020] / cz 43.00 [6.00]
   (Opt) D 2019MNRAS.486.2169K
Parallaxes (mas): 		5.9039 [0.1103] A 2020yCat.1350....0G
Spectral type: 		DAZ D 2012ApJ...760..123R
Fluxes (9) :
G 17.294504 [0.003100] C 2020yCat.1350....0G
J 17.69 [0.03] C 2011MNRAS.417.1210G
H 17.66 [0.08] C 2011MNRAS.417.1210G
K 17.8 [0.1] D 2011MNRAS.417.1210G
u (AB) 17.354 [0.009] C 2015ApJS..219...12A
g (AB) 17.109 [0.004] C 2015ApJS..219...12A
r (AB) 17.432 [0.005] C 2015ApJS..219...12A
i (AB) 17.698 [0.007] C 2015ApJS..219...12A
z (AB) 17.962 [0.020] C 2015ApJS..219...12A
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Identifiers (12) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

WD 1041+092 SDSS J104341.57+085557.7 SDSS J104341.54+085558.2 WIRED J104341.53+085558.2
GALEX J104341.5+085558 SDSS J104341.56+085557.7 SDSS J104341.54+085558.1 Gaia DR3 3869060540584643328
LAMOST J104341.53+085558.2 SDSS J104341.53+085558.2 WD 1041+091 Gaia DR2 3869060540584643328

References (70 between 1850 and 2026) (Total 70)
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

Velocities : 4    Distance : 6    Fe/H : 10    Plx : 4    PM : 4    SpT : 9   

   

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : GALEX J104341.5+085558

Link by name to the catalogue in VizieR :

WD 1041+092 GALEX J104341.5+085558 SDSS J104341.57+085557.7 SDSS J104341.56+085557.7 SDSS J104341.53+085558.2
SDSS J104341.54+085558.2 SDSS J104341.54+085558.1 WD 1041+091 Gaia DR3 3869060540584643328 Gaia DR2 3869060540584643328

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