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

SLIDE 1

Mu l t i

• w

a v e l e n g t h c a m p a i g n

• n

N G C 7 4 6 9 : t h e b r

• a

d

• b

a n d X

• r

a y s p e c t r u m

R i c c a r d

• Mi

d d e i

• n

b e h a l f

• f

t h e N G C 7 4 6 9 c

• n

s

• r

t i u m

Sesto 2017, From the Dolomites to the event horizon: sledging down the black hole potentjal well

SLIDE 2

T h e c a m p a i g n

• n

N G C 7 4 6 9

> p r

• p

e r t i e s

• f

t h e

• u

t f l

• w

> u n d e r s t a n d t h e n a t u r e

• f

t h e c

• n

t i n u u m e m i s s i

• n

> S e y f e r t 1 g a l a x y > z = . 1 6 2 6 8

>

> v a r i a b l e s

• u

r c e > b r i g h t i n t h e X

• r

a y s

7

• b

s e r v a t i

• n

s

Mr k 5 9 N G C 5 5 4 8 P a s t c a m p a i g n s

• n

N G C 7 4 6 9

SLIDE 3

N G C 7 4 6 9 i s a v a r i a b l e s

• u

r c e Mi d d e i e t a l . i n p r e p . T

i m i n g a n a l y s i s

SLIDE 4

Mi d d e i e t a l . i n p r e p . N G C 7 4 6 9 i s a v a r i a b l e s

• u

r c e

T i m i n g a n a l y s i s

SLIDE 5

T h e X MM- N e w t

• n

s p e c t r a

A t l e a s t

• n

e m

• r

e c

• m

p

• n

e n t i s n e e d e d t

• f

i t t h e s

• f

t b a n d T h i s s

• f

t e x c e s s e x t e n d s u p t

• 4

k e V

m

• =

p

• w

e r l a w

SLIDE 6

T h e X MM- N e w t

• n

s p e c t r a :

F i r s t s t e p : We s t u d y X MM- N e w t

• n

s p e c t r a i n t h e 4

• 1

k e V b a n d

m

• =

p

• w

e r l a w

T h e X MM- N e w t

• n

s p e c t r a

SLIDE 7

R e d u c e d _ C h i = 1 . 4

m

• =

( p e x r a v + z g a u s s + z g a u s s )

N e u t r a l F e K F e X X V I L y

T h e X MM- N e w t

• n

b e s t

• f

i t

SLIDE 8

R e d u c e d _ C h i = 1 . 4

m

• =

( p e x r a v + z g a u s s + z g a u s s )

T h e n e u t r a l i r

• n

l i n e

> c

• n

s t a n t > n a r r

• w

( n

• r

e l a t i v i s t i c b r

• a

d e n i n g )

• >

E Q W~ 9 e V

T h e X MM- N e w t

• n

b e s t

• f

i t

SLIDE 9

N u S T A R s p e c t r a l a n a l y s i s :

m

• =

p

• w

e r l a w

U s i n g i n f

• r

m a t i

• n
• b

t a i n e d f r

• m

p r e v i

• u

s X MM- N e w t

• n

a n a l y s i s

• n
• r

e l a t i v i s t i c e f f e c t s

• c
• n

s i s t e n t r e f l e c t i

• n

m

• d

e l : h u m p + n a r r

• w

i r

• n

l i n e a t 6 . 4 k e V

• n

a r r

• w

i r

• 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

• f

f

R e d u c e d _ C h i = 2 . 6

N u S T A R s p e c t r a l a n a l y s i s :

SLIDE 10

N u S T A R s p e c t r a l a n a l y s i s :

m

• =

c

• n

s t * ( x i l l v e r + z g a u s s )

R e d u c e d _ C h i = 1 . 5 I n f

• r

m a t i

• n
• n

> h i g h e n e r g y c u t

• f

f > r e f l e c t i

• n

c

• m

p

• n

e n t

SLIDE 11

N u S T A R s p e c t r a l a n a l y s i s s

• m

e r e s u l t s :

> H i g h e n e r g y c u t

• f

f ~ 2 2 k e V > R e f l e c t i

• n

~ . 4 > G a m m a ~ 1 . 8

SLIDE 12

N u S T A R s p e c t r a l a n a l y s i s s

• m

e r e s u l t s :

> H i g h e n e r g y c u t

• f

f ~ 2 2 k e V > R e f l e c t i

• n

~ . 4 > G a m m a ~ 1 . 8

SLIDE 13

X MM- N e w t

• n

& N u s t a r 4

• 7

8 k e V a n a l y s i s

m

• =

c

• n

s t * ( x i l l v e r + z g a u s s )

R e d u c e d _ C h i = 1 . 5 I n t e r

• c

a l i b r a t i

• n

: A d i f f e r e n c e ( ~ . 1 7 ) b e t w e e n t h e X MM- N e w t

• n

a n d N u S T A R i s f

• u

n d

SLIDE 14

X MM- N e w t

• 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

• n

s t r a i n e d . 5

• 7

8 k e V F i r s t r e s u l t s

SLIDE 15

C

• n

s t r a i n i n g t h e s

• 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 1 6

SLIDE 16

C

• n

s t r a i n i n g t h e s

• 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 Best-fit me Adding this model to the

• ne used for

the hard spectra

B e h a r e t a l . 2 1 6

SLIDE 17

C

• n

s t r a i n i n g t h e s

• 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 Best-fit me Adding this model to the

• ne used for

the hard spectra

Building two fixed tables for emitting and absorbing components

B e h a r e t a l . 2 1 6

SLIDE 18

C

• n

s t r a i n i n g t h e s

• 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 Third attempt: Nthcomp It fits !

m

• =

t b a b s * c

• 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 )

SLIDE 19

C

• n

s t r a i n i n g t h e s

• 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

Obs norm 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

• =

t b a b s * c

• 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 )

SLIDE 20

> N t h C

• m

p t f i t s t h e s

• f

t

• b

a n d w h i l e

• t

h e r s d

• n
• t

! > N G C 7 4 6 9 v a r i e s m u c h

• n

s h

• 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

• s

d

• n
• t

v a r y a l

• t

> N

• e

v i d e n c e

• f

r e l a t i v i s t i c e f f e c t s

• n

t h e i r

• n

l i n e w h i c h i s c

• n

s t a n t a l

• n

g w i t h i t s a s s

• c

i a t e d r e f l e c t i

• n

c

• m

p

• n

e n t > C u t

• f

f a t ~ 1 8 k e V , c

• n

s t a n t a m

• n

g t h e

• b

s e r v a t i

• n

s > N

• e

v i d e n c e

• f

v a r i a b i l i t y

• f

G a m m a a m

• n

g t h e

• b

s e r v a t i

• n

s

S u m m a r y