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HEAD 2000, November 2000 Session 2. Active Galaxies

Summary: HEAD 2000, November 2000
Session 2. Active Galaxies
Display, Monday, November 6, 2000, 8:00am­6:00pm, Bora Bora Ballroom
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[2.03] XMM­Newton Observation of the Complex Absorbing
Medium in IRAS 13349+2438
M. Sako (Columbia), M. Audard (PSI), E. Behar (Columbia), A. J. den Boggende (SRON), Th. Boller
(MPE), G. Branduardi­Raymont (MSSL), A. C. Brinkman (SRON), J. Cottam (Columbia), C. Erd
(ESTEC), C. Ferringo (SRON), M. Guedel (PSI), J. W. den Herder (SRON), J. S. Kaastra (SRON), S. M.
Kahn (Columbia), A. Lagostina (SOC), R. Mewe (SRON), F. B. S. Paerels (Columbia), J. R. Peterson
(Columbia), M. Pierre (CEA/DSM/DAPNIA), E. M. Puchnarewicz (MSSL), A. P. Rasmussen
(Columbia), T. Tamura (SRON), I. Sakelliou (MSSL), K. Thomsen (SRON), C. de Vries (SRON)
The luminous infrared­selected quasar IRAS 13349+2438 was observed with XMM­Newton as part of
the performance verification program. The spectrum obtained by the RGS exhibits broad and narrow
absorption lines from highly ionized elements including hydrogen­ and helium­like nitrogen, oxygen,
and neon, and several iron L ions. Also shown in the spectrum is the first detection of an "unresolved
transition array" of iron in a much cooler medium. We present a preliminary analysis of the RGS
spectrum and discuss the structure and dynamics of the complex absorbing medium surrounding the
active nucleus.
The author(s) of this abstract have provided an email address for comments about the abstract:


Source: Audard, Marc - INTEGRAL Science Data Centre & Observatory of Geneva, Université de Genève
Guedel, Manuel - Institut für Astronomie, Universität Wien


Collections: Physics