Publications of W. Collmar
All genres
Journal Article (28)
21.
Journal Article
848 (2006)
INTEGRAL observation of flaring activity of Mrk 421. The Astronomer's Telegram 22.
Journal Article
444 (3), pp. 767 - 775 (2005)
COMPTEL observations of the γ-ray blazars 3C 454.3 and CTA 102 during the CGRO mission. Astronomy & Astrophysics 23.
Journal Article
421 (3), pp. 983 - 990 (2004)
Spectral constraints on unidentified EGRET gamma-ray sources from COMPTEL MeV observations. Astronomy & Astrophysics 24.
Journal Article
593, pp. 160 - 168 (2003)
BeppoSAX observations of Centaurus A: The hard continuum and the iron-line feature. The Astrophysical Journal 25.
Journal Article
396 (3), pp. 923 - 928 (2002)
An unidentified variable gamma-ray source near the galactic plane detected by COMPTEL. Astronomy & Astrophysics 26.
Journal Article
572 (2), pp. 984 - 995 (2002)
The soft gamma-ray spectral variability of Cygnus X-1. The Astrophysical Journal 27.
Journal Article
386 (3), pp. 843 - 853 (2002)
COMPTEL observations of the gamma-ray blazar PKS 1622-297. Astronomy & Astrophysics 28.
Journal Article
435, pp. L91 - L95 (1994)
The 1993 multiwavelength campaign on 3C 279: the radio to gamma-ray energy distribution in low state. The Astrophysical Journal Conference Paper (37)
29.
Conference Paper
90, pp. 297 - 300 (2019)
COMPTEL Reloaded: a heritage project in MeV astronomy. Proceedings of the 12th INTEGRAL conference and 1st AHEAD Gamma-ray Workshop, Geneva, Switzerland, February 11, 2019 - February 15, 2019. Memorie della Societa Astronomica Italiana 30.
Conference Paper
IFS2017, 039, (2017)
On the Underlying Particles in the Jet of 3C 279. IFS2017 - 7th International Fermi Symposium, Garmisch-Partenkirchen, Germany, October 15, 2017 - October 20, 2017. Proceedings of Science 31.
Conference Paper
IFS2017, 132, (2017)
COMPTEL reloaded: a heritage MeV data project. IFS2017 - 7th International Fermi Symposium, Garmisch-Partenkirchen, Germany, October 15, 2017 - October 20, 2017. Proceedings of Science 32.
Conference Paper
Limits on MeV gamma-ray emission from active galaxies and other unidentified high-latitude gamma-ray sources observed with CGRO/COMPTEL. In: Proceedings of the 30th International Cosmic Ray Conference, pp. 1085 - 1087 (Eds. Caballero, R.; D'Olivo, J.C.; Medina-Tanco, G.; Nellen, L.; Sánchez, F.A. et al.). 30th International Cosmic Ray Conference, Mérida Yucatan, México, July 03, 2007 - July 11, 2007. Universidad Nacional Autónoma de México, Mexico City, Mexico (2008)
33.
Conference Paper
INTEGRAL observations of the gamma-ray blazar 3C 279 during the 'deep extragalactic survey'. In: Proceedings of the 6th Integral Workshop - The Obscured Universe, pp. 203 - 206 (Eds. Grebenev, S.; Sunyaev, R.; Winkler, C.). 6th Integral Workshop - The Obscured Universe, Moscow, Russian Federation, July 02, 2006 - July 08, 2006. ESA Publications Division, Noordwijk, The Netherlands (2007)
34.
Conference Paper
Multifrequency observations of the blazar 3C 279 in January 2006. In: Proceedings of the 6th Integral Workshop - The Obscured Universe, pp. 207 - 210 (Eds. Grebenev, S.; Sunyaev, R.; Winkler, C.). 6th Integral Workshop - The Obscured Universe, Moscow, Russian Federation, July 02, 2006 - July 08, 2006. ESA Publications Division, Noordwijk, The Netherlands (2007)
35.
Conference Paper
309 (1-4), pp. 17 - 21 (2007)
INTEGRAL/XMM views on the MeV source GRO J1411-64. Conference on the Multi-Messenger Approach to High Energy Gamma-Ray Sources, Barcelona, Spain, July 04, 2006 - July 07, 2006. Astrophysics and Space Science 36.
Conference Paper
309 (1-4), pp. 23 - 27 (2007)
Evidence for a new MeV source observed by the COMPTEL experiment aboard CGRO. Conference on the Multi-Messenger Approach to High Energy Gamma-Ray Sources, Barcelona, Spain, July 04, 2006 - July 07, 2006. Astrophysics and Space Science 37.
Conference Paper
INTEGRAL and multiwavelength observations of the blazar Mrk 421 during an active phase. In: The First GLAST Symposium, pp. 371 - 372 (Eds. Ritz, S.; Michelson, P.; Meegan, C.). The First GLAST Symposium, Stanford, California, USA, February 05, 2007 - February 08, 2007. American Institute of Physics, Melville, NY, USA (2007)
38.
Conference Paper
New blazar detections at MeV energies by COMPTEL. In: Blazar Variability Workshop II: Entering the GLAST Era, pp. 120 - 123 (Eds. Miller, H.R.; Marshall, K.; Webb, J.R.; Aller, M.F.). Blazar Variability Workshop II: Entering the GLAST Era, Miami, Florida, USA, April 10, 2005 - April 12, 2005. Astronomical Society of the Pacific, San Francisco, CA, USA (2006)
39.
Conference Paper
INTEGRAL/RXTE observations of Cen A. In: Proceedings of the X-ray Universe 2005, pp. 657 - 658 (Ed. Wilson, A.). The X-ray Universe 2005, El Escorial, Madrid, Spain, September 26, 2005 - September 30, 2005. ESA Publications Division, Noordwijk, The Netherlands (2006)
40.
Conference Paper
Comptel constraints on unidentified EGRET sources. Conference on multiwavelenght approach to undentified gamma-ray sources, Hong Kong, June 01, 2004 - June 04, 2004. multiwavelenght approach to unidentified gamma-ray sources, pp. 283 - 290 (2005)