Workshop DAS - 2018
Manuel Castro
FAPESP’s BEPE fellowship, process: #2017/00968-6
May 8, 2018
Manuel Castro Workshop DAS - 2018
Observing Hercules X-1 withXMM-Newton
M. Castro, M. Kuhnel, J. Wilms, J. Braga, R.Staubert
M. Castro, M. Kuhnel, J. Wilms, J. Braga, R. Staubert Observing Hercules X-1 with XMM-Newton
Her X-1
Characteristics
I Neutron star: 1.23-s period.
I Binary system: 1.7-d period.I Accretion disk: 35-d cycle.
I High states: main-on andshort-on
I Low states.Endo et al. (2000)
M. Castro, M. Kuhnel, J. Wilms, J. Braga, R. Staubert Observing Hercules X-1 with XMM-Newton
35-d cycle
J. Wilms et al., A015 proposal
Kuster et al. (2005)
M. Castro, M. Kuhnel, J. Wilms, J. Braga, R. Staubert Observing Hercules X-1 with XMM-Newton
Observing Her X-1 with XMM
I Her X-1 observed during 4 epochs.
I EPIC and RGS data.
I Before, during and after the turn-on.
M. Castro, M. Kuhnel, J. Wilms, J. Braga, R. Staubert Observing Hercules X-1 with XMM-Newton
701601501301
57619.057618.557618.057617.557617.057616.557616.0
0.08
0.06
0.04
0.02
0
-0.02
-0.04
600
500
400
300
200
100
time (MJD)
BAT
rate
(counts
s−1cm
−2)
EPIC
rate
(counts
s −1)
M. Castro, M. Kuhnel, J. Wilms, J. Braga, R. Staubert Observing Hercules X-1 with XMM-Newton
Modelling the broad-band spectra
M. Castro, M. Kuhnel, J. Wilms, J. Braga, R. Staubert Observing Hercules X-1 with XMM-Newton
RGS spectra of Her X-1
10
1
0.1
0.40.60.811.21.62
7015
0
-56015
0
-55015
0
-5301
353025201510
5
0
-5
×10−3Photo
nscm
−2s−
1A
−1
Energy (keV)
χχ
χ
λ(A)
χ
Looking at the spectrum closer
M. Castro, M. Kuhnel, J. Wilms, J. Braga, R. Staubert Observing Hercules X-1 with XMM-Newton
RGS spectra of Her X-1
10
1
0.1
0.40.60.811.21.62
7015
0
-56015
0
-55015
0
-5301
353025201510
5
0
-5
×10−3Photo
nscm
−2s−
1A
−1
Energy (keV)
χχ
χ
λ(A)
χ
Looking at the spectrum closer
M. Castro, M. Kuhnel, J. Wilms, J. Braga, R. Staubert Observing Hercules X-1 with XMM-Newton
RGS spectra of Her X-1
10
1
0.1
0.40.60.811.21.62
7015
0
-56015
0
-55015
0
-5301
353025201510
5
0
-5
×10−3Photo
nscm
−2s−
1A
−1
Energy (keV)
χχ
χ
λ(A)
χ
Looking at the spectrum closer
M. Castro, M. Kuhnel, J. Wilms, J. Braga, R. Staubert Observing Hercules X-1 with XMM-Newton
RGS spectra of Her X-1
10
1
0.1
0.40.60.811.21.62
7015
0
-56015
0
-55015
0
-5301
353025201510
5
0
-5
×10−3Photo
nscm
−2s−
1A
−1
Energy (keV)
χχ
χ
λ(A)
χ
Looking at the spectrum closer
M. Castro, M. Kuhnel, J. Wilms, J. Braga, R. Staubert Observing Hercules X-1 with XMM-Newton
RGS spectra of Her X-1
10
1
0.1
0.40.60.811.21.62
7015
0
-56015
0
-55015
0
-5301
353025201510
5
0
-5
×10−3Photo
nscm
−2s−
1A
−1
Energy (keV)
χχ
χ
λ(A)
χ
Looking at the spectrum closer
M. Castro, M. Kuhnel, J. Wilms, J. Braga, R. Staubert Observing Hercules X-1 with XMM-Newton
SIXTE simulations
M. Castro, M. Ortel, J. Wilms, J. Braga
M. Castro, M. Ortel, J. Wilms, J. Braga SIXTE simulations
SIXTE Simulations
I Photon generation (photogen).
I Photon imaging (comaimg).
I Photon detection (comadet).
I Reconstruction (comarecon).
Mirjam’s diploma thesis, 2013.
M. Castro, M. Ortel, J. Wilms, J. Braga SIXTE simulations
https://www.sternwarte.uni-erlangen.de/research/sixte/index.php
M. Castro, M. Ortel, J. Wilms, J. Braga SIXTE simulations
Photon generation
M. Castro, M. Ortel, J. Wilms, J. Braga SIXTE simulations
Photon imaging
I Open or close mask-element.
I Shadowgram.
M. Castro, M. Ortel, J. Wilms, J. Braga SIXTE simulations
Photon detection
Mirjam’s diploma thesis, 2013.
M. Castro, M. Ortel, J. Wilms, J. Braga SIXTE simulations
Photon detection
Mirjam’s diploma thesis, 2013.
M. Castro, M. Ortel, J. Wilms, J. Braga SIXTE simulations
Photon detection
Mirjam’s diploma thesis, 2013.
M. Castro, M. Ortel, J. Wilms, J. Braga SIXTE simulations
Reconstruction
I Correlation.
I FFT.
I Backprojection.
M. Castro, M. Ortel, J. Wilms, J. Braga SIXTE simulations
Reconstruction
I Correlation.
I FFT.
I Backprojection.
M. Castro, M. Ortel, J. Wilms, J. Braga SIXTE simulations
Bibliography
Endo, T., Nagase, F. & Mihara, T. Publ. Astron. Soc. Japan, 52(2000):223.
Kuster, M., Wilms, J., Staubert, R., Heindl, W.A., Rothschild, R.E., Shakura,N.I. & Postnov, K.A. Astron. Astrophys., 443(2005):753.
M. Castro, M. Ortel, J. Wilms, J. Braga SIXTE simulations