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Mu l t i - w a v e l e n g t h c a m p a i g n - PowerPoint PPT Presentation

Jul 01, 2023 •239 likes •449 views

Mu l t i - w a v e l e n g t h c a m p a i g n o n N G C 7 4 6 9 : t h e b r o a d - b a n d X - r a y s p e c t r u m Sesto 2017, From the Dolomites to the event horizon: sledging down the

  1. Mu l t i - w a v e l e n g t h c a m p a i g n o n N G C 7 4 6 9 : t h e b r o a d - b a n d X - r a y s p e c t r u m Sesto 2017, From the Dolomites to the event horizon: sledging down the black hole potentjal well R i c c a r d o Mi d d e i o n b e h a l f o f t h e N G C 7 4 6 9 c o n s o r t i u m

  2. P a s t c a m p a i g n s o n T h e c a m p a i g n o n N G C 7 4 6 9 > p r o p e r t i e s o f t h e o u t f l o w Mr k 5 0 9 N G C 5 5 4 8 > u n d e r s t a n d t h e n a t u r e o f N G C 7 4 6 9 t h e c o n t i n u u m e m i s s i o n 7 o b s e r v a t i o n s > S e y f e r t 1 g a l a x y > z = 0 . 0 1 6 2 6 8 > > v a r i a b l e s o u r c e > b r i g h t i n t h e X - r a y s

  3. . T i m i n g a n a l y s i s N G C 7 4 6 9 i s a v a r i a b l e s o u r c e Mi d d e i e t a l . i n p r e p

  4. T i m i n g a n a l y s i s N G C 7 4 6 9 i s a v a r i a b l e s o u r c e Mi d d e i e t a l . i n p r e p .

  5. T h e X MM- N e w t o n s p e c t r a A t l e a s t o n e m o r e c o m p o n e n t i s n e e d e d t o f i t t h e s o f t b a n d m o = p o w e r l a w T h i s s o f t e x c e s s e x t e n d s u p t o 4 k e V

  6. T T h h e e X X MM- MM- N N e e w w t t o o n n s s p p e e c c t t r r a a : F i r s t s t e p : We s t u d y X MM- m o = p o w e r l a w N e w t o n s p e c t r a i n t h e 4 - 1 0 k e V b a n d

  7. T h e X MM- N e w t o n b e s t - f i t R e d u c e d _ C h i = 1 . 0 4 N e u t r a l F e K F e X X V I L y m o = ( p e x r a v + z g a u s s + z g a u s s )

  8. T h e X MM- N e w t o n b e s t - f i t R e d u c e d _ C h i = 1 . 0 4 T h e n e u t r a l i r o n l i n e > c o n s t a n t m o = ( p e x r a v + z g a u s s + z g a u s s ) > n a r r o w ( n o r e l a t i v i s t i c b r o a d e n i n g ) - > E Q W~ 9 0 e V

  9. N N u u S S T T A A R R s s p p e e c c t t r r a a l l a a n n a a l y l y s s i s i s : : R e d u c e d _ C h i = 2 . 0 6 U s i n g i n f o r m a t i o n o b t a i n e d f r o m p r e v i o u s X MM- N e w t o n a n a l y s i s - n o r e l a t i v i s t i c e f f e c t s - c o n s i s t e n t r e f l e c t i o n m o = p o w e r l a w m o d e l : h u m p + n a r r o w i r o n l i n e a t 6 . 4 0 k e V - n a r r o w i r o n l i n e a t 6 . 9 6 6 k e V - h i g h e n e r g y c u t - o f f

  10. N u S T A R s p e c t r a l a n a l y s i s : R e d u c e d _ C h i = 1 . 0 5 I n f o r m a t i o n o n > h i g h e n e r g y c u t - o f f m o = c o n s t * ( x i l l v e r + z g a u s s ) > r e f l e c t i o n c o m p o n e n t

  11. N u S T A R s p e c t r a l a n a l y s i s s o m e r e s u l t s : > H i g h e n e r g y c u t - o f f ~ 2 2 0 k e V > R e f l e c t i o n ~ 0 . 4 0 > G a m m a ~ 1 . 8 0

  12. N u S T A R s p e c t r a l a n a l y s i s s o m e r e s u l t s : > H i g h e n e r g y c u t - o f f ~ 2 2 0 k e V > R e f l e c t i o n ~ 0 . 4 0 > G a m m a ~ 1 . 8 0

  13. X MM- N e w t o n & N u s t a r 4 - 7 8 k e V a n a l y s i s R e d u c e d _ C h i = 1 . 0 5 I n t e r - c a l i b r a t i o n : A d i f f e r e n c e ( ~ 0 . 1 7 ) b e t w e e n t h e X MM- N e w t o n a n d N u S T A R i s f o u n d m o = c o n s t * ( x i l l v e r + z g a u s s )

  14. X MM- N e w t o n & N u s t a r 4 - 7 8 k e V a n a l y s i s 4 - 7 8 k e V b a n d a l r e a d y c o n s t r a i n e d 0 . 5 - 7 8 k e V F i r s t r e s u l t s

  15. C o n s t r a i n i n g t h e s o f t - e x c e s s ( V e r y p r e l i m i n a r y ! ! ! ) Many absorbing and emitting components B e h a r e t a l . 2 0 1 6

  16. C o n s t r a i n i n g t h e s o f t - e x c e s s ( V e r y p r e l i m i n a r y ! ! ! ) me Adding this Best-fit model to the Many absorbing one used for and emitting the hard components spectra B e h a r e t a l . 2 0 1 6

  17. C o n s t r a i n i n g t h e s o f t - e x c e s s ( V e r y p r e l i m i n a r y ! ! ! ) me Best-fit Adding this model to the Many absorbing one used for and emitting the hard components spectra Building two fixed tables for emitting and absorbing components B e h a r e t a l . 2 0 1 6

  18. C o n s t r a i n i n g t h e s o f t - e x c e s s ( V e r y p r e l i m i n a r y ! ! ! ) R e d u c e d _ C h i = 1 . 1 3 First attempt: Power-law It does not fit Second attempt: Black body It does not fit m o = t b a b s * c o n s t * m t a b l e * ( x i l l v e r + z g a u s s + a t a b l e ) Third attempt: Nthcomp It fits !

  19. C o n s t r a i n i n g t h e s o f t - e x c e s s ( V e r y p r e l i m i n a r y ! ! ! ) Obs norm R e d u c e d _ C h i = 1 . 1 3 1 2.75 0.57 6.1e-3 2 2.72 0.64 5.5e-3 3 2.67 0.57 4.3e-3 4 2.71 0.62 4.2e-3 5 2.63 0.60 5.1e-3 6 2.66 0.60 4.6e-3 7 2.68 0.63 5.1e-3 m o = t b a b s * c o n s t * m t a b l e * ( x i l l v e r + z g a u s s + a t a b l e )

  20. S u m m a r y > N t h C o m p t f i t s t h e s o f t - b a n d w h i l e o t h e r s d o n o t ! > N G C 7 4 6 9 v a r i e s m u c h o n s h o r t t i m e - s c a l e s w h i l e h a r d n e s s r a t i o s d o n o t v a r y a l o t > N o e v i d e n c e o f r e l a t i v i s t i c e f f e c t s o n t h e i r o n l i n e w h i c h i s c o n s t a n t a l o n g w i t h i t s a s s o c i a t e d r e f l e c t i o n c o m p o n e n t > C u t - o f f a t ~ 1 8 0 k e V , c o n s t a n t a m o n g t h e o b s e r v a t i o n s > N o e v i d e n c e o f v a r i a b i l i t y o f G a m m a a m o n g t h e o b s e r v a t i o n s

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