THE RISE OF AN IONIZED WIND IN THE NARROW-LINE SEYFERT 1 GALAXY Mrk 335 OBSERVED BY
We present the discovery of an outflowing ionized wind in the Seyfert 1 galaxy Mrk 335. Despite having been extensively observed by most of the largest X-ray observatories in the last decade, this bright source was not known to host warm absorber gas until recent XMM-Newton observations in combinati...
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| Format: | Article |
| Language: | en_US |
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Institute of Physics/American Astronomical Society
2015
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| Online Access: | http://hdl.handle.net/1721.1/94521 |
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| author | Longinotti, Anna Lia Krongold, Y. Kriss, Gerard A. Ely, J. Gallo, Luigi C. Grupe, D. Komossa, S. Mathur, Savita Pradhan, A. |
| author2 | MIT Kavli Institute for Astrophysics and Space Research |
| author_facet | MIT Kavli Institute for Astrophysics and Space Research Longinotti, Anna Lia Krongold, Y. Kriss, Gerard A. Ely, J. Gallo, Luigi C. Grupe, D. Komossa, S. Mathur, Savita Pradhan, A. |
| author_sort | Longinotti, Anna Lia |
| collection | MIT |
| description | We present the discovery of an outflowing ionized wind in the Seyfert 1 galaxy Mrk 335. Despite having been extensively observed by most of the largest X-ray observatories in the last decade, this bright source was not known to host warm absorber gas until recent XMM-Newton observations in combination with a long-term Swift monitoring program have shown extreme flux and spectral variability. High-resolution spectra obtained by the XMM-Newton Reflection Grating Spectrometer (RGS) detector reveal that the wind consists of three distinct ionization components, all outflowing at a velocity of ~5000 km s[superscript –1]. This wind is clearly revealed when the source is observed at an intermediate flux state (2-5 × 10[superscript –12] erg cm[superscript –2] s[superscript –1]). The analysis of multi-epoch RGS spectra allowed us to compare the absorber properties at three very different flux states of the source. No correlation between the warm absorber variability and the X-ray flux has been determined. The two higher ionization components of the gas (log ξ ~ 2.3 and 3.3) may be consistent with photoionization equilibrium, but we can exclude this for the only ionization component that is consistently present in all flux states (log ξ ~ 1.8). We have included archival, non-simultaneous UV data from Hubble Space Telescope (FOS, STIS, COS) with the aim of searching for any signature of absorption in this source that so far was known for being absorption-free in the UV band. In the Cosmic Origins Spectrograph (COS) spectra obtained a few months after the X-ray observations, we found broad absorption in C IV lines intrinsic to the active galactic nucleus and blueshifted by a velocity roughly comparable to the X-ray outflow. The global behavior of the gas in both bands can be explained by variation of the covering factor and/or column density, possibly due to transverse motion of absorbing clouds moving out of the line of sight at broad line region scale. |
| first_indexed | 2024-09-23T17:03:01Z |
| format | Article |
| id | mit-1721.1/94521 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T17:03:01Z |
| publishDate | 2015 |
| publisher | Institute of Physics/American Astronomical Society |
| record_format | dspace |
| spelling | mit-1721.1/945212022-10-03T10:01:35Z THE RISE OF AN IONIZED WIND IN THE NARROW-LINE SEYFERT 1 GALAXY Mrk 335 OBSERVED BY Longinotti, Anna Lia Krongold, Y. Kriss, Gerard A. Ely, J. Gallo, Luigi C. Grupe, D. Komossa, S. Mathur, Savita Pradhan, A. MIT Kavli Institute for Astrophysics and Space Research Longinotti, Anna Lia We present the discovery of an outflowing ionized wind in the Seyfert 1 galaxy Mrk 335. Despite having been extensively observed by most of the largest X-ray observatories in the last decade, this bright source was not known to host warm absorber gas until recent XMM-Newton observations in combination with a long-term Swift monitoring program have shown extreme flux and spectral variability. High-resolution spectra obtained by the XMM-Newton Reflection Grating Spectrometer (RGS) detector reveal that the wind consists of three distinct ionization components, all outflowing at a velocity of ~5000 km s[superscript –1]. This wind is clearly revealed when the source is observed at an intermediate flux state (2-5 × 10[superscript –12] erg cm[superscript –2] s[superscript –1]). The analysis of multi-epoch RGS spectra allowed us to compare the absorber properties at three very different flux states of the source. No correlation between the warm absorber variability and the X-ray flux has been determined. The two higher ionization components of the gas (log ξ ~ 2.3 and 3.3) may be consistent with photoionization equilibrium, but we can exclude this for the only ionization component that is consistently present in all flux states (log ξ ~ 1.8). We have included archival, non-simultaneous UV data from Hubble Space Telescope (FOS, STIS, COS) with the aim of searching for any signature of absorption in this source that so far was known for being absorption-free in the UV band. In the Cosmic Origins Spectrograph (COS) spectra obtained a few months after the X-ray observations, we found broad absorption in C IV lines intrinsic to the active galactic nucleus and blueshifted by a velocity roughly comparable to the X-ray outflow. The global behavior of the gas in both bands can be explained by variation of the covering factor and/or column density, possibly due to transverse motion of absorbing clouds moving out of the line of sight at broad line region scale. Space Telescope Science Institute (U.S.) (HST Program number 12653) United States. National Aeronautics and Space Administration (STScI Archival Research Grant) European Space Agency (support from the Faculty of the European Space Astronomy Centre (ESAC)) United States. National Aeronautics and Space Administration (NASA contract NNX08AT25G) United States. National Aeronautics and Space Administration (NASA contract NAS5-00136) United States. National Aeronautics and Space Administration (NASA contract NNX08AT25G) United States. National Aeronautics and Space Administration (NASA contract NNX09AP50G) United States. National Aeronautics and Space Administration (NASA contract NNX09AN12G) Smithsonian Astrophysical Observatory (Contract SV3-73016) United States. National Aeronautics and Space Administration (NASA contract number NNX10AK91G) United States. National Aeronautics and Space Administration (NASA contract NAS5-26555) 2015-02-12T21:24:36Z 2015-02-12T21:24:36Z 2013-04 2012-10 Article http://purl.org/eprint/type/JournalArticle 0004-637X 1538-4357 http://hdl.handle.net/1721.1/94521 Longinotti, A. L., Y. Krongold, G. A. Kriss, J. Ely, L. Gallo, D. Grupe, S. Komossa, S. Mathur, and A. Pradhan. “ THE RISE OF AN IONIZED WIND IN THE NARROW-LINE SEYFERT 1 GALAXY Mrk 335 OBSERVED BY XMM-NEWTON AND HST .” The Astrophysical Journal 766, no. 2 (March 14, 2013): 104. © 2013 American Astronomical Society. en_US http://dx.doi.org/10.1088/0004-637x/766/2/104 Astrophysical Journal Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf Institute of Physics/American Astronomical Society American Astronomical Society |
| spellingShingle | Longinotti, Anna Lia Krongold, Y. Kriss, Gerard A. Ely, J. Gallo, Luigi C. Grupe, D. Komossa, S. Mathur, Savita Pradhan, A. THE RISE OF AN IONIZED WIND IN THE NARROW-LINE SEYFERT 1 GALAXY Mrk 335 OBSERVED BY |
| title | THE RISE OF AN IONIZED WIND IN THE NARROW-LINE SEYFERT 1 GALAXY Mrk 335 OBSERVED BY |
| title_full | THE RISE OF AN IONIZED WIND IN THE NARROW-LINE SEYFERT 1 GALAXY Mrk 335 OBSERVED BY |
| title_fullStr | THE RISE OF AN IONIZED WIND IN THE NARROW-LINE SEYFERT 1 GALAXY Mrk 335 OBSERVED BY |
| title_full_unstemmed | THE RISE OF AN IONIZED WIND IN THE NARROW-LINE SEYFERT 1 GALAXY Mrk 335 OBSERVED BY |
| title_short | THE RISE OF AN IONIZED WIND IN THE NARROW-LINE SEYFERT 1 GALAXY Mrk 335 OBSERVED BY |
| title_sort | rise of an ionized wind in the narrow line seyfert 1 galaxy mrk 335 observed by |
| url | http://hdl.handle.net/1721.1/94521 |
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