AustralieFrV1, PascalFrancis, Corpus, bibRecord, 004462

Gravitational microlensing of quasar broad-line regions : the influence of fractal structures

Identifieur interne : 004462 ( PascalFrancis/Corpus ); précédent : 004461; suivant : 004463

Gravitational microlensing of quasar broad-line regions : the influence of fractal structures

Auteurs : Geraint F. Lewis ; Rodrigo A. Ibata

Source :

Monthly Notices of the Royal Astronomical Society [ 0035-8711 ] ; 2006.

RBID : Pascal:06-0191959

Descripteurs français

Pascal (Inist)
- Microlentille, Quasar, Fractal, Modèle physique, Milieu turbulent, Raie émission, Courbe lumière, Profil raie, Mirage gravitationnel, Raie absorption, Région raie large.

English descriptors

KwdEn :
- Absorption line, Broad line region, Emission line, Fractal, Gravitational lensing, Light curves, Line shape, Microlenses, Physical model, Quasars, Turbulent medium.

Abstract

Recent models for the emission clouds within the broad-line region (BLR) of quasars suggest that they are due to transient overdensities within an overall turbulent medium. If this were the case, the broad-line emission would spatially appear fractal, possessing structure on a range of scales. This paper examines the influence of such fractal structure when a quasar is microlensed by a population of intervening masses. It is found that while the highest fractal levels can undergo significant microlensing magnification, when these light curves are superimposed to create an emission-line profile, the resultant emission-line profile remains relatively constant for physical models of the BLR. It is concluded that the detection of the possible fractal structure of BLRs via gravitational microlensing is not practical.

Notice en format standard (ISO 2709)

Pour connaître la documentation sur le format Inist Standard.

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A08	`01`	`1`	`ENG`	`@1 Gravitational microlensing of quasar broad-line regions : the influence of fractal structures`
A11	`01`	`1`		`@1 LEWIS (Geraint F.)`
A11	`02`	`1`		`@1 IBATA (Rodrigo A.)`
A14	`01`			`@1 Institute of Astronomy, School of Physics, University of Sydney @2 NSW 2006 @3 AUS @Z 1 aut.`
A14	`02`			`@1 Observatoire de Strasbourg, 11 Rue de l'Universite @2 6700 Strasbourg @3 FRA @Z 2 aut.`
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A45				`@0 25 ref.`
A47	`01`	`1`		`@0 06-0191959`
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A64	`01`	`1`		`@0 Monthly Notices of the Royal Astronomical Society`
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C01	`01`		`ENG`	@0 Recent models for the emission clouds within the broad-line region (BLR) of quasars suggest that they are due to transient overdensities within an overall turbulent medium. If this were the case, the broad-line emission would spatially appear fractal, possessing structure on a range of scales. This paper examines the influence of such fractal structure when a quasar is microlensed by a population of intervening masses. It is found that while the highest fractal levels can undergo significant microlensing magnification, when these light curves are superimposed to create an emission-line profile, the resultant emission-line profile remains relatively constant for physical models of the BLR. It is concluded that the detection of the possible fractal structure of BLRs via gravitational microlensing is not practical.
C02	`01`	`3`		`@0 001E03`
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C03	`01`	`3`	`ENG`	`@0 Microlenses @5 26`
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C03	`02`	`3`	`ENG`	`@0 Quasars @5 27`
C03	`03`	`X`	`FRE`	`@0 Fractal @5 28`
C03	`03`	`X`	`ENG`	`@0 Fractal @5 28`
C03	`03`	`X`	`SPA`	`@0 Fractal @5 28`
C03	`04`	`X`	`FRE`	`@0 Modèle physique @5 29`
C03	`04`	`X`	`ENG`	`@0 Physical model @5 29`
C03	`04`	`X`	`SPA`	`@0 Modelo físico @5 29`
C03	`05`	`X`	`FRE`	`@0 Milieu turbulent @5 30`
C03	`05`	`X`	`ENG`	`@0 Turbulent medium @5 30`
C03	`05`	`X`	`SPA`	`@0 Medio turbulento @5 30`
C03	`06`	`X`	`FRE`	`@0 Raie émission @5 31`
C03	`06`	`X`	`ENG`	`@0 Emission line @5 31`
C03	`06`	`X`	`SPA`	`@0 Raya emisión @5 31`
C03	`07`	`3`	`FRE`	`@0 Courbe lumière @5 32`
C03	`07`	`3`	`ENG`	`@0 Light curves @5 32`
C03	`08`	`3`	`FRE`	`@0 Profil raie @5 33`
C03	`08`	`3`	`ENG`	`@0 Line shape @5 33`
C03	`09`	`X`	`FRE`	`@0 Mirage gravitationnel @5 34`
C03	`09`	`X`	`ENG`	`@0 Gravitational lensing @5 34`
C03	`09`	`X`	`SPA`	`@0 Espejismo gravitacional @5 34`
C03	`10`	`X`	`FRE`	`@0 Raie absorption @5 35`
C03	`10`	`X`	`ENG`	`@0 Absorption line @5 35`
C03	`10`	`X`	`SPA`	`@0 Raya absorción @5 35`
C03	`11`	`3`	`FRE`	`@0 Région raie large @4 CD @5 96`
C03	`11`	`3`	`ENG`	`@0 Broad line region @4 CD @5 96`
C03	`11`	`3`	`SPA`	`@0 Región raya ancha @4 CD @5 96`
N21				`@1 114`
N44	`01`			`@1 OTO`
N82				`@1 OTO`

Format Inist (serveur)

NO :	PASCAL 06-0191959 INIST
ET :	Gravitational microlensing of quasar broad-line regions : the influence of fractal structures
AU :	LEWIS (Geraint F.); IBATA (Rodrigo A.)
AF :	Institute of Astronomy, School of Physics, University of Sydney/NSW 2006/Australie (1 aut.); Observatoire de Strasbourg, 11 Rue de l'Universite/6700 Strasbourg/France (2 aut.)
DT :	Publication en série; Niveau analytique
SO :	Monthly Notices of the Royal Astronomical Society; ISSN 0035-8711; Coden MNRAA4; Royaume-Uni; Da. 2006; Vol. 367; No. 3; Pp. 1217-1221; Bibl. 25 ref.
LA :	Anglais
EA :	Recent models for the emission clouds within the broad-line region (BLR) of quasars suggest that they are due to transient overdensities within an overall turbulent medium. If this were the case, the broad-line emission would spatially appear fractal, possessing structure on a range of scales. This paper examines the influence of such fractal structure when a quasar is microlensed by a population of intervening masses. It is found that while the highest fractal levels can undergo significant microlensing magnification, when these light curves are superimposed to create an emission-line profile, the resultant emission-line profile remains relatively constant for physical models of the BLR. It is concluded that the detection of the possible fractal structure of BLRs via gravitational microlensing is not practical.
CC :	001E03
FD :	Microlentille; Quasar; Fractal; Modèle physique; Milieu turbulent; Raie émission; Courbe lumière; Profil raie; Mirage gravitationnel; Raie absorption; Région raie large
ED :	Microlenses; Quasars; Fractal; Physical model; Turbulent medium; Emission line; Light curves; Line shape; Gravitational lensing; Absorption line; Broad line region
SD :	Fractal; Modelo físico; Medio turbulento; Raya emisión; Espejismo gravitacional; Raya absorción; Región raya ancha
LO :	INIST-2067.354000142837000340
ID :	06-0191959

Links to Exploration step

Pascal:06-0191959

Le document en format XML

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<ET>Gravitational microlensing of quasar broad-line regions : the influence of fractal structures</ET>
<AU>LEWIS (Geraint F.); IBATA (Rodrigo A.)</AU>
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<EA>Recent models for the emission clouds within the broad-line region (BLR) of quasars suggest that they are due to transient overdensities within an overall turbulent medium. If this were the case, the broad-line emission would spatially appear fractal, possessing structure on a range of scales. This paper examines the influence of such fractal structure when a quasar is microlensed by a population of intervening masses. It is found that while the highest fractal levels can undergo significant microlensing magnification, when these light curves are superimposed to create an emission-line profile, the resultant emission-line profile remains relatively constant for physical models of the BLR. It is concluded that the detection of the possible fractal structure of BLRs via gravitational microlensing is not practical.</EA>
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Gravitational microlensing of quasar broad-line regions : the influence of fractal structures

Gravitational microlensing of quasar broad-line regions : the influence of fractal structures

Source :

Descripteurs français

English descriptors

Abstract

Notice en format standard (ISO 2709)

Format Inist (serveur)

Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri