IGR J18179-1621: an obscured X-ray pulsar discovered by INTEGRAL

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Table 3

Results of the combined XRT/JEM-X/ISGRI spectra of IGR J18179-1621, using an absorbed power-law with high-energy exponential roll-over and an absorption feature.

Rev.

N _H ^a

E _cut

E _fold

E _cycl

σ _cycl

τ _cycl

C _ISGRI

C _JEMX1

C _JEMX2

/d.o.f.

keV

(10^-10 erg cm^-2 s^-1)

1145-6

0.5 ± 0.2

11.0 ± 0.8

3.0^b

1.0 ± 0.1

1.3 ± 0.1

2.6

6.5

1.2

1.0/173

1145-6^N

0.5 ± 0.2

10.8 ± 0.6

–

1.0 ± 0.2

1.0 ± 0.1

1.3 ± 0.1

2.6

6.6

1.2

1.5/175

1147^N

0.1 ± 0.6

–

1.6

5.5

0.6

1.1/40

Notes.

^(a)

The N_H is in units of 10²² cm^-2.

^(b)

This parameter was fixed (see text for details).

^(N)

In these cases, no cyclotron feature was included in the fit.

^(c)

Absorbed fluxes.

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