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The nuclear environment of the NLS1 Mrk 335: obscuration of the X-ray line emission by a variable outflow

Parker, M. L. and Longinotti, A. L. and Schartel, N. and Grupe, D. and Komossa, S. and Kriss, G. and Fabian, A. C. and Gallo, L. and Harrison, F. A. and Jiang, J. and Kara, E. and Krongold, Y. and Matzeu, G. A. and Pinto, C. and Santos-Lleó, M. (2019) The nuclear environment of the NLS1 Mrk 335: obscuration of the X-ray line emission by a variable outflow. Monthly Notices of the Royal Astronomical Society, 490 (1). pp. 683-697. ISSN 0035-8711. doi:10.1093/mnras/stz2566.

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We present XMM–Newton, NuSTAR, Swift, and Hubble Space Telescope observations of the Narrow-line Seyfert 1 galaxy Mrk 335 in a protracted low state in 2018 and 2019. The X-ray flux is at the lowest level so far observed, and the extremely low continuum flux reveals a host of soft X-ray emission lines from photoionized gas. The simultaneous UV flux drop suggests that the variability is intrinsic to the source, and we confirm this with broad-band X-ray spectroscopy. The dominance of the soft X-ray lines at low energies and distant reflection at high energies, is therefore due to the respective emission regions being located far enough from the X-ray source that they have not yet seen the flux drop. Between the two XMM–Newton spectra, taken 6 months apart, the emission line ratio in the O VII triplet changes drastically. We attribute this change to a drop in the ionization of intervening warm absorption, which means that the absorber must cover a large fraction of the line emitting region, and extend much further from the black hole than previously assumed. The HST spectrum, taken in 2018, shows that new absorption features have appeared on the blue wings of C III*, Ly α, N V, Si IV, and C IV, likely due to absorbing gas cooling in response to the low flux state.

Item Type:Article
Related URLs:
URLURL TypeDescription Paper
Parker, M. L.0000-0002-8466-7317
Grupe, D.0000-0002-9961-3661
Fabian, A. C.0000-0002-9378-4072
Harrison, F. A.0000-0003-2992-8024
Kara, E.0000-0003-0172-0854
Pinto, C.0000-0003-2532-7379
Additional Information:© 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society. This article is published and distributed under the terms of the Oxford University Press, Standard Journals Publication Model ( Accepted 2019 September 10. Received 2019 September 6; in original form 2019 July 30. Published: 13 September 2019. MLP, GAM, and CP are supported by European Space Agency (ESA) Research Fellowships. ACF acknowledges support from ERC Advanced Grant 340442. ALL is supported by CONACyT grant CB-2016-01-286316. JJ acknowledges support from the Cambridge Trust and the Chinese Scholarship Council joint scholarship (201604100032). DG acknowledges support by HST grant HST-GO-15439.002-A. Based on observations obtained with XMM–Newton, an ESA science mission with instruments and contributions directly funded by ESA Member States and NASA. This work made use of data from the NuSTAR mission, a project led by the California Institute of Technology, managed by the Jet Propulsion Laboratory, and funded by the National Aeronautics and Space Administration. This research has made use of the NuSTAR Data Analysis Software (NuSTARDAS) jointly developed by the ASI Science Data Center (ASDC, Italy) and the California Institute of Technology (USA). We acknowledge support from the Faculty of the European Space Astronomy Centre (ESAC). We thank the anonymous referee for their constructive feedback, which has significantly improved this work.
Group:NuSTAR, Space Radiation Laboratory, Astronomy Department
Funding AgencyGrant Number
European Space Agency (ESA)UNSPECIFIED
European Research Council (ERC)340442
Consejo Nacional de Ciencia y Tecnología (CONACYT)CB-2016-01-286316
Cambridge TrustUNSPECIFIED
Chinese Scholarship Council201604100032
NASA Hubble FellowshipHST-GO-15439.002-A
European Space Astronomy CentreUNSPECIFIED
Subject Keywords:accretion, accretion discs – black hole physics – galaxies: active – X-rays: individual: Mrk 335
Issue or Number:1
Record Number:CaltechAUTHORS:20190916-161112944
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Official Citation:M L Parker, A L Longinotti, N Schartel, D Grupe, S Komossa, G Kriss, A C Fabian, L Gallo, F A Harrison, J Jiang, E Kara, Y Krongold, G A Matzeu, C Pinto, M Santos-Lleó, The nuclear environment of the NLS1 Mrk 335: Obscuration of the X-ray line emission by a variable outflow, Monthly Notices of the Royal Astronomical Society, Volume 490, Issue 1, November 2019, Pages 683–697,
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:98668
Deposited By: Tony Diaz
Deposited On:16 Sep 2019 23:23
Last Modified:16 Nov 2021 17:40

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