期刊
ASTRONOMY & ASTROPHYSICS
卷 534, 期 -, 页码 -出版社
EDP SCIENCES S A
DOI: 10.1051/0004-6361/201116899
关键词
galaxies: active; quasars: absorption lines; galaxies: Seyfert
资金
- ESA Member States
- USA (NASA)
- NWO, the Netherlands Organization for Scientific Research
- Comit Mixto ESO - Gobierno de Chile
- UK Science & Technology Facilities Council (STFC)
- CNES
- French GDR PCHE
- ASI-INAF [I/088/06/0]
- NASA/XMM [NNX09AR01G]
- NASA [NAS5-26555]
- ISF
- EU [FP7-PEOPLE-2009-IEF-254279]
- NASA through Space Telescope Science Institute
- NASA [NNX09AR01G, 108336] Funding Source: Federal RePORTER
We present the results of our 600 ks RGS observation as part of the multiwavelength campaign on Mrk 509. The very high quality of the spectrum allows us to investigate the ionized outflow with an unprecedented accuracy due to the long exposure and the use of the RGS multipointing mode. We detect multiple absorption lines from the interstellar medium and from the ionized absorber in Mrk 509. A number of emission components are also detected, including broad emission lines consistent with an origin in the broad line region, the narrow O VII forbidden emission line and also (narrow) radiative recombination continua. The ionized absorber consists of two velocity components (upsilon = -13 +/- 11 km s(-1) and upsilon = -319 +/- 14 km s(-1)), which both are consistent with earlier results, including UV data. There is another tentative component outflowing at high velocity, -770 +/- 109 km s(-1), which is only seen in a few highly ionized absorption lines. The outflow shows discrete ionization components, spanning four orders of magnitude in ionization parameter. Due to the excellent statistics of our spectrum, we demonstrate for the first time that the outflow in Mrk 509 in the important range of log. between 1-3 cannot be described by a smooth, continuous absorption measure distribution, but instead shows two strong, discrete peaks. At the highest and lowest ionization parameters we cannot differentiate smooth and discrete components.
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