Author

T. Weekes

results may include different authors with the same name

3 papers

Complex Spectral Variability from Intensive Multi-wavelength Monitoring of Mrk421 in 1998

We conducted a multi-frequency campaign for the TeV blazar Mrk~421 in 1998 April. The campaign started from a pronounced high amplitude flare recorded by SAX and Whipple; ASCA observation started three days later. In the X-ray data, we…

Astrophysics · Physics 2009-10-31 T. Takahashi , J. Kataoka , G. Madejski , J. Mattox , C. M. Urry , S. Wagner , F. Aharonian , M. Catanese , L. Chiappetti , P. Coppi , B. Degrange , G. Fossati , H. Kubo , H. Krawczynski , F. Makino , H. Marshall , L. Maraschi , F. Piron , R. Remillard , F. Takahara , M. Tashiro , H. Terasranta , T. Weekes

INTEGRAL and Multiwavelength Observations of the Blazar Mrk 421 during an Active Phase

A ToO observation of the TeV-emitting blazar Mrk 421 with INTEGRAL was triggered in June 2006 by an increase of the RXTE count rate to more than 30 mCrab. The source was then observed with all INTEGRAL instruments with the exception of the…

Astrophysics · Physics 2009-06-23 G. G. Lichti , E. Bottacini , P. Charlot , W. Collmar , D. Horan , A. von Kienlin , A. Laehteenmaeki , K. Nilsson , D. Petry , A. Sillanpaeae , M. Tornikoski , T. Weekes

Section on Extragalactic Science Topics of the White Paper on the Status and Future of Ground-Based TeV Gamma-Ray Astronomy

This is a report on the findings of the extragalactic science working group for the white paper on the status and future of TeV gamma-ray astronomy. The white paper was commissioned by the American Physical Society, and the full white paper…

Astrophysics · Physics 2008-12-04 H. Krawczynski , A. M. Atoyan , M. Beilicke , R. Blandford , M. Boettcher , J. Buckley , A. Carraminana , P. Coppi , C. Dermer , B. Dingus , E. Dwek , A. Falcone , S. Fegan , J. Finley , S. Funk , M. Georganopoulos , J. Holder , D. Horan , T. Jones , I. Jung , P. Kaaret , J. Katz , F. Krennrich , S. LeBohec , J. McEnery , R. Mukherjee , R. Ong , E. Perlman , M. Pohl , S. Ritz , J. Ryan , G. Sinnis , V. Vassiliev , M. Urry , T. Weekes