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Figure 1:
Image of the NVSS data obtained with the VLA at 20 cm on 1997 October 13 around IGR J18027-1455. The image size is
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Figure 2:
Naturally weighted map of NVSS J180247-145451 obtained with the VLA
in A configuration on December 2004 at 6 cm. At this resolution the source has
clearly a point-like appearance. The image size is
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Figure 3:
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Figure 4:
Near infrared spectrum of 2MASS J18024737-1454547, the
counterpart of IGR J18027-1455, acquired with the NTT on 2004 July
10. The identified emission lines are indicated. A redshift of
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Figure 5:
Averaged optical spectrum of the optical counterpart of
IGR J18027-1455 acquired with CAFOS on the 2.2 m telescope at CAHA
on 2004 July 19. The spectrum has been smoothed with a Gaussian filter. The
identified emission lines are indicated. A broad H![]() ![]() |
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Figure 6:
Overall nuclear spectral energy distribution of
IGR J18027-1455 (filled symbols) from the radio to the hard
X-ray/gamma-ray band. Optical stands for the I and B USNO-B1.0 and R magnitude from Masetti et al. (2004b). The SED has been normalized at 6 cm
(assuming
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