Zobrazeno 1 - 10
of 435
pro vyhledávání: '"Bloemen H"'
Autor:
Bykov, A. M., Krassilchtchikov, A. M., Uvarov, Yu. A., Bloemen, H., Bocchino, F., Dubner, G. M., Giacani, E. B., Pavlov, G. G.
Publikováno v:
The Astrophysical Journal, v. 676, p. 1050-1063, 2008
The nature of the extended hard X-ray source XMMU J061804.3+222732 and its surroundings is investigated using XMM-Newton, Chandra, and Spitzer observations. This source is located in an interaction region of the IC 443 supernova remnant with a neighb
Externí odkaz:
http://arxiv.org/abs/0801.1255
Autor:
Bykov, A. M., Krassilchtchikov, A. M., Uvarov, Yu. A., Kennea, J. A., Pavlov, G. G., Dubner, G. M., Giacani, E. B., Bloemen, H., Hermsen, W., Kaastra, J., Lebrun, F., Renaud, M., Terrier, R., DeBecker, M., Rauw, G., Swings, J. -P.
Publikováno v:
Astrophys.J.649:L21-L24,2006
We found a very likely counterpart to the recently discovered hard X-ray source IGR J2018+4043 in the multi-wavelength observations of the source field. The source, originally discovered in the 20-40 keV band, is now confidently detected also in the
Externí odkaz:
http://arxiv.org/abs/astro-ph/0609676
Autor:
Renaud, M., Vink, J., Decourchelle, A., Lebrun, F., Hartog, P. R. den, Terrier, R., Couvreur, C., Knodlseder, J., Martin, P., Prantzos, N., Bykov, A. M., Bloemen, H.
Publikováno v:
Astrophys.J.647:L41-L44,2006
We report the detection of both the 67.9 and 78.4 keV 44Sc gamma-ray lines in Cassiopeia A with the INTEGRAL IBIS/ISGRI instrument. Besides the robustness provided by spectro-imaging observations, the main improvements compared to previous measuremen
Externí odkaz:
http://arxiv.org/abs/astro-ph/0606736
INTEGRAL detection of hard X-rays from NGC 6334: Nonthermal emission from colliding winds or an AGN?
Autor:
Bykov, A. M., Krassilchtchikov, A. M., Uvarov, Yu. A., Lebrun, F., Renaud, M., Terrier, R., Bloemen, H., McBreen, B., Courvoisier, T. J. -L., Gustov, M. Yu., Hermsen, W., Leyder, J. -C., Lozinskaya, T. A., Rauw, G., Swings, J. -P.
Publikováno v:
Astron.Astrophys. 449 (2006) 917-923
We report the detection of hard X-ray emission from the field of the star-forming region NGC 6334 with the the International Gamma-Ray Astrophysics Laboratory INTEGRAL. The JEM-X monitor and ISGRI imager aboard INTEGRAL and Chandra ACIS imager were u
Externí odkaz:
http://arxiv.org/abs/astro-ph/0512627
Autor:
Bykov, A. M., Krassilchtchikov, A. M., Uvarov, Yu. A., Bloemen, H., Chevalier, R. A., Gustov, M. Yu., Hermsen, W., Lebrun, F., Lozinskaya, T. A., Rauw, G., Smirnova, T. V., Sturner, S. J., Swings, J. -P., Terrier, R., Toptygin, I. N.
Publikováno v:
Astron.Astrophys. 427 (2004) L21-L24
Spatially resolved images of the galactic supernova remnant G78.2+2.1 (gamma-Cygni) in hard X-ray energy bands from 25 keV to 120 keV are obtained with the IBIS-ISGRI imager aboard the International Gamma-Ray Astrophysics Laboratory INTEGRAL. The ima
Externí odkaz:
http://arxiv.org/abs/astro-ph/0410688
Autor:
Georgii, R., Plüschke, S., Diehl, R., Lichti, G. G., Schönfelder, V., Bloemen, H., Hermsen, W., Ryan, J., Bennett, K.
Supernova 1998bu in the galaxy M96 was observed by COMPTEL for a total of 88 days starting 17 days after the explosion. We searched for a signal in the 847 keV and 1238 keV lines of radioactive 56Co from this type Ia supernova. Using several differen
Externí odkaz:
http://arxiv.org/abs/astro-ph/0208152
Autor:
Zhang, S., Collmar, W., Bennett, K., Bloemen, H., Hermsen, W., McConnell, M., Reimer, O., Schonfelder, V., Wagner, S. J., Williams, O. R.
We report results of observations and analyses on the gamma-ray blazar PKS 1622-297, with emphasis on the COMPTEL data (0.75 - 30 MeV) collected between April 1991 and November 1997. PKS 1622-297 was detected as a source of gamma-rays by the EGRET ex
Externí odkaz:
http://arxiv.org/abs/astro-ph/0203231
Autor:
McConnell, M. L., Zdziarski, A. A., Bennett, K., Bloemen, H., Collmar, W., Hermsen, W., Kuiper, L., Paciesas, W., Phlips, B. F., Poutanen, J., Ryan, J. M., Schoenfelder, V., Steinle, H., Strong, A. W.
We have used observations of Cygnus X-1 from the Compton Gamma-Ray Observatory (CGRO) and BeppoSAX to study the variation in the MeV gamma-ray emission between the hard and soft spectral states, using spectra that cover the energy range 20 keV up to
Externí odkaz:
http://arxiv.org/abs/astro-ph/0112326
Autor:
Zhang, S., Collmar, W., Schoenfelder, V., Bloemen, H., Hermsen, W., McConnell, M., Bennett, K., Williams, O. R.
We have analyzed the two blazars of 3C 454.3 and CTA 102 using all available COMPTEL data from 1991 to 1999. In the 10-30 MeV band, emission from the general direction of the sources is found at the 4$\sigma$-level, being consistent with contribution
Externí odkaz:
http://arxiv.org/abs/astro-ph/0107173