CHANDRA observation of the narrow-line Seyfert 1 galaxy IRAS 13224-3809

Details CHANDRA observation of the narrow-line Seyfert 1 galaxy IRAS 13224-3809 CHANDRA observation of the narrow-line Seyfert 1 galaxy IRAS 13224-3809

2001-06-12

arxiv.org/abs/astro-ph/0106203v1

Astronomy and Astrophysics

Astrophysics

5 pages, 10 figures, 1 table, proceedings paper for the "MAXI workshop on AGN variability" held in Nikko, Japan (March 10-11,

Scientific paper

The narrow-line Seyfert 1 galaxy (NLS1) IRAS 13224-3809 has been observed with the CHANDRA High Resolution Camera (HRC-I) for 12 ksec on February, 2, 2000. The source was proposed for CHANDRA observations to precisely determine the X-ray centroid position and to investigate the timing properties of the most X-ray variable Seyfert galaxy. The position derived from CHANDRA confirms that the X-ray emission is associated with IRAS 13224-3809. The CHANDRA HRC-I light curve shows indications for a possible presence of a quasi-periodic oscillation. The strongest signal is found at 2500 sec. Accretion disk instabilities may provide a plausible explanation for the quasi-periodic oscillations.

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