NuSTAR. The Nuclear Spectroscopic Telescope Array Extragalac6c Program. Andrea Marinucci Università degli Studi Roma Tre. on behalf of the NuSTAR team

Transcription

1 NuSTAR The Nuclear Spectroscopic Telescope Array Extragalac6c Program Andrea Marinucci Università degli Studi Roma Tre on behalf of the NuSTAR team INTEGRAL Workshop 2013

2 NuSTAR bringing the high energy universe into focus NASA Small Explorer (SMEX) mission Launch Date: June 13, 2012 Phase E (science opera6ons) Start Date: August 1, 2012 P.I.: Fiona Harrison (Caltech) Project Scien6st: Daniel Stern (Caltech) htp://nustar.caltech.edu

3 INTEGRAL, SwiC BAT NuSTAR high background, large detector low background, compact detector 3

4 Pegasus launch from Kwajelein (June ): low earth orbit, 550x600 km low inclina6on, 6 4

5 Ground Sta+on: Malindi, Kenya (thanks!) 5

6 Collec6ng Area Satellite (instrument) INTEGRAL (ISGRI) Swib (BAT) NuSTAR Sensi+vity ~0.5 mcrab ( kev) with >Ms exposures ~0.8 mcrab ( kev) with >Ms exposures ~0.8 μcrab (10-40 kev) in 1 Ms NuSTAR two- telescope total collechng area SensiHvity comparison 6

7 1 Ms Sensi6vity 3.2 x erg/cm 2 /s (6 10 kev) 1.4 x (10 30 kev) Timing rela6ve 100 microsec absolute 3 msec Imaging HPD 58 FWHM 18 Localiza6on 2 (1- sigma) Field of View FWZI 12.5 x 12.5 FWHI 10 kev 40 kev 68 kev Spectral response energy range 3-79 kev threshold 2.0 kev 6 kev 0.4 kev FWHM 60 kev 1.0 kev FWHM Target of Opportunity response <24 hr (reqmt) typical 6-8 hours 80% sky accessibility 7

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9 The Galac6c Center INTEGRAL (2005) (2 x 0.8 ) NuSTAR simula6on (2012) Galac6c surveys: locate remnants of collapsed stars (white dwarfs, neutron stars, black holes) to study the endpoints of stellar evoluhon 9

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11 Imaging IC342 The galaxy IC 342, ULX- 1/2 resolved for the first 6me above 10 kev 11

12 NuSTAR Extragalac+c Surveys: Resolving the Hard X- Ray Background peaks at ~30 kev constrains the accre6on history of the universe, e.g., the forma6on history of supermassive black holes Ueda et al. 2003, ApJ, 598, 886 requires a popula6on of heavily obscured AGN 12

13 NuSTAR Extragalac+c Surveys: Resolving the Hard X- Ray Background pluses = Chandra Deep Fields/GOODS diamond = XMM Lockman Hole INTEGRAL/Swib Worsley et al. 2005, MNRAS, 357, kev 13

14 NuSTAR Extragalac+c Surveys: Resolving the Hard X- Ray Background Alexander, Stern et al ApJ, 773, 125 NuSTAR s first born NuSTAR (in purple) serendipitous source in field of IC751 14

15 NuSTAR AGN Physics: fundamental ques+ons Urry & Padovani (1995) 15

16 NuSTAR AGN Physics: simultaneous XMM & Suzaku campaigns 16

17 NuSTAR AGN Physics: the importance of spectral shape Spin alters shape of Fe K line and Compton hump in predictable, measurable ways. Shape of Comptonized con6nuum determined by kt, τ of coronal plasma. We know that E cut ~ 3kT, so measuring E cut helps break degeneracy. kt = 50 kev kt = 100 kev kt = 150 kev 17

18 NuSTAR AGN Physics: first result on the BH spin in NGC

19 NuSTAR AGN Physics: first result on the BH spin in NGC 1365 Risali6 et al. 2013, Nature 19

20 Baseline Science Mission As typical for an Explorer, all baseline observa6ons led by the science team mixture of Level 1 and Priority A targets (with fair amount of margin in reserve) Aber the current ini6al calibra6on period is completed, observa6ons will go public through HEASARC two months aber a data set is completed (next data release will be Oct. 31 st ) 1.5 Ms of NuSTAR to be made available for coordinated observa6ons with next XMM AO (factor 6 oversubscrip6on) A paper a week is being submited by now, for a complete list of accepted/published paper: htp:// astronomers/publica6ons/refereed- papers ~140- person interna6onal science team broken into 13 science working groups: 20

21 Baseline Science Mission Science Group Galac6c Surveys, Galac6c Center Supernovae and ToOs Supernova remnants and Pulsar Wind Nebulae Magnetars and Rota6on Powered Pulsars Galac6c Binaries Ultraluminous X- ray Sources Extragalac6c Surveys Blazars and Radio Galaxies Obscured AGN AGN Physics Galaxy Clusters Starburst Galaxies Solar Physics Working Group Chair Chuck Hailey Steve Boggs Fiona Harrison Vicky Kaspi John Tomsick Fiona Harrison Daniel Stern Greg Madejski, Paolo Giommi Daniel Stern Giorgio MaT Allan Hornstrup, Silvano Molendi Ann Hornschemeier David Smith htp:// (look under for astronomers ) 21

22 Thanks! 22