高分散分光観測から探る be/x 線連星における be 星ガス円盤の構造

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高高高高高高高高高高高 Be/X 高高高高高高高 Be 高高高高高高高高 高高高高 高高高高高高高 高高高高高 高高高高高高高高高 高高高高高 高高高高 高高高高高 高高高高高 高高高 、、、、、 1 7 F e b . 2 0 1 2

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高分散分光観測から探る Be/X 線連星における Be 星ガス円盤の構造. 京都大学 宇宙物理学教室         森谷 友由 希 共同研究者: 野上大作、岡崎敦男、今田明、神戸栄治、本田敏志、橋本修. 講演の内容 / アウトライン. Be/X 線連星 という連星に関する研究 可視光高分散分光 モニター観測 6 年間にわたるモニター Be 星ガス円盤の様子 アウトライン Be/X 線連星とは モニター 観測について 長周期の変動について X 線で活発な時期の Be 星ガス円盤について. Be/X 線連星とは. - PowerPoint PPT Presentation

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Be/XBe

Be/XBe

17 Feb. 2012/Be/X6Be

Be/XXBe2Be/X

Be/X(Okazaki+ 2002)Be + ()()Be: Balmer1B()() + Be():BeBe(): etcBe/XX: BeRoche lobe overflow

(Porter & Rivinius 2003 PASP, 115, 1153)edge-on pole-on3Be/XBe/X (e > 0.3)()Transient3(2 -10 keV):quiescent: (< 1036 erg/s)normal outburst (1036-37 erg/s)(20%)giant outburst (>1037 erg/s)(30%)()

EXO 2030+375X(1550 keV) http://swift.gsfc.nasa.gov/docs/swift/results/transients/EXO2030p375/Giant outburst Normal outbursts4

(Camero-Arranz et al. 2011)Outburst()XOutburst QPOs(Quasi Periodic Oscillations)spin-up

4U0115+635 spin(Fermi web page)QPO(2mHz)(Heindl + 1999, ApJ, 521, L49)

[Hz]10-41012mHzHarmonicsof spin periodPower5

Be/X(Okazaki+ 2002)Outburst()BeGiant outburstBeProfile outburstor

4U0115+635 H(19952005)Reig + (2007) A&A 462, 10816

Be/X(Okazaki+ 2002)Be/XBeBemass donor!OutburstBegiant outburstBe!?Be/XBe

Outburst Be disk7Outburst Be diskBeGiant outburst Be or BeOutburstBeNormalgiantBe diskBe Be/X

8Be(X)BeBe Kepler 10km/s

TargetA0535+262/V725 Tau()9Target: A0535+262/V725 TauA0535+262/V725 TauO9.7IIIe + NS (Giangrande+ 1980, A&AS, 40, 289)NS103-s pulsar (Coe+ 1975, Nature 256, 630)O9.7IIIe: mV 8.9 mag (Giangrande+ 1980, A&AS, 40, 289)Porb ~ 110 days e 0.47 (Finger+ 1994, AIPC, 308, 459)

A0535+262L1Roche lobe(5.6R*)10OAO 188cm/HIDES 3500 6800 R~60000 @HS/N 100 @HGAO 1.5m/GAOES 4800 6700 R~30000 @HS/N ~ 100 @H

201010S/N 50 @H

188cm tel. @OAO1.5m tel. @GAO11V/R:double-peaked profileV/R = IV/IR

EW():IRIV12200511201110114(110)

Be13

14profile!?20051120093Profile V/RV/R 112(Grundstrom+2007 ApJ, 660, 1398)

HHContinuum-normalized fluxContinuum-normalized flux400 [km/s] 400400 [km/s] 400

200610A0535+262H(Grundstron+ 2007)15V/RV/RFourier50015 daysV/R V/Rconsistent~1 1.5 years (Clark +, 1998, MNRAS, 294, 165 )~1.5 years (Haigh et al., 2004, MNRAS, 350, 1457)

Power00.02 0.01 0.002 [days-1]Frequency [days -1]16

V/R ratio(500)500Global One-armed oscillation (Okazaki 1996, PASJ, 48, 305; Papaloizou+ 1992, A&A, 265, L45)Be diskBe/XOne-armed oscillation(Oktariani & Okazaki, 2009, PASJ, 61, 57) / A0535+262 ~2 year

D=10R1()(Oktariani & Okazaki, 2009)

2/17 Doppler tomographyDoppler Tomography Profile

Marsh (2001, 2005)

Line Profile Doppler Map(Velocity )18 Doppler tomographyH/HDoppler Tomography : 500()H: 47H: 35 5000.1~1Velocity MapH HBe

HH19Be20X20093201110: 68giant outbursts 2200911/12 20112normal outbursts 520094200982010320106/7201010

20093Swift(15-50keV)XLight curve2peak21Blue shoulder:Enhanced component:2009giant outburstTriple peak: enhanced compo-nenttriple peak

Continuum-normalized flux400 [km/s] 400X=0.0722009giant outburstH22Blue shoulder:Enhanced component:2009giant outburstTriple peak: enhanced compo-nenttriple peak20103normal outburst2011giant outburstenhanced component

Continuum-normalized flux400 [km/s] 400H2009giant outburst23EW(H)Be disk (Grundstrom+2007 ApJ, 660, 1398)|EW(H)|=13:Roche lobe 20098outburstV/R20098outburst500Hwing2008Be disk

VWing

GGH

HHe66HHe58200820072009201024Blue shoulder: Enhanced component 2009giant outburst 2011giant outburst : 2009giant outburst H:20098outburstBe diskRocheV/R: 20098outburst500Hwing: 2008Be disk251Blue shoulder(X~0.1)OutburstBe disk Be diskoutburst

262Warped Be disk2009giant outburstBeKeplerEnhanced component triple peakBeRoche(H)V/R500Warped Be disk272Warped Be diskTidally warped Be disk (Martin+ 2011, MNRAS, 416, 2827)Bekick velocity (asymmetric supernova)Be2008HwingBe diskenhanced componentwarped

Be disk

28WarpedWarped 6742

[km/s]

Be disk Warp Be disk Warp O:ginat outburst (2009.11):normal outburst (2010.03)X:giant outburst (2011.02) WarpBe disk29

Be()Warped()Case1Case2 BeBewarped (200511)BeKepler

30BeBewarped (200511)BeKepler2008outflow

31BeBewarped (200511)BeKepler2008outflow2009giant outburst warpenhanced component

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BeBewarped (200511)BeKepler2008outflow2009giant outburst warpenhanced componentGiant outburst (200911), Normal outburst (20103) warpedGiant outburst (20112) No enhanced component:

33MovieBe/XA0535+262/V725 Tau6OutburstBeV/RFourier50015Doppler tomographyH/HBe disk 500Be2009giant outburstHbright shoulderOutburstBeTidally warped Be disk2009giant outburstwarped674precess (2)Giant outburst: warped

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