The XMM-Newton/HST view of the obscuring outflow in the Seyfert Galaxy Mrk 335 observed at extremely low X-ray flux. (arXiv:1903.05795v1 [astro-ph.GA])
<a href="http://arxiv.org/find/astro-ph/1/au:+Longinotti_A/0/1/0/all/0/1">Anna Lia Longinotti</a> (CONACyT-INAOE), <a href="http://arxiv.org/find/astro-ph/1/au:+Kriss_G/0/1/0/all/0/1">Gerard Kriss</a> (STScI), <a href="http://arxiv.org/find/astro-ph/1/au:+Krongold_Y/0/1/0/all/0/1">Yair Krongold</a> (UNAM), <a href="http://arxiv.org/find/astro-ph/1/au:+Arellano_Cordova_K/0/1/0/all/0/1">Karla Arellano-Cordova</a> (IAC), <a href="http://arxiv.org/find/astro-ph/1/au:+Komossa_S/0/1/0/all/0/1">Stefanie Komossa</a> (Max Planck, Bonn), <a href="http://arxiv.org/find/astro-ph/1/au:+Gallo_L/0/1/0/all/0/1">Luigi Gallo</a> (Saint Mary's University), <a href="http://arxiv.org/find/astro-ph/1/au:+Grupe_D/0/1/0/all/0/1">Dirk Grupe</a> (Morehead State University), <a href="http://arxiv.org/find/astro-ph/1/au:+Mathur_S/0/1/0/all/0/1">Smita Mathur</a> (Ohio State University), <a href="http://arxiv.org/find/astro-ph/1/au:+Parker_M/0/1/0/all/0/1">Michael Parker</a> (ESAC), <a href="http://arxiv.org/find/astro-ph/1/au:+Pradhan_A/0/1/0/all/0/1">Anil Pradhan</a> (Ohio State University), <a href="http://arxiv.org/find/astro-ph/1/au:+Wilkins_D/0/1/0/all/0/1">Dan Wilkins</a> (KIPAC, Stanford University)
The Seyfert Galaxy Mrk 335 is known for its frequent changes of flux and
spectral shape in the X-ray band occurred during recent years. These variations
may be explained by the onset of a wind that previous, non-contemporaneous
high-resolution spectroscopy in X-ray and UV bands located at accretion disc
scale. A simultaneous new campaign by XMM-Newton and HST caught the source at
an historical low flux in the X-ray band. The soft X-ray spectrum is dominated
by prominent emission features, and by the effect of a strong ionized absorber
with an outflow velocity of 5-6X10$^3$~km~s$^{-1}$. The broadband spectrum
obtained by the EPIC-pn camera reveals the presence of an additional layer of
absorption by gas at moderate ionization covering 80% of the central source,
and tantalizing evidence for absorption in the Fe~K band outflowing at the same
velocity of the soft X-ray absorber. The HST-COS spectra confirm the
simultaneous presence of broad absorption troughs in CIV, Ly alpha, Ly beta and
OVI, with velocities of the order of 5000 km~s$^{-1}$ and covering factors in
the range of 20-30%. Comparison of the ionic column densities and of other
outflow parameters in the two bands show that the X-ray and UV absorbers are
likely originated by the same gas. The resulting picture from this latest
multi-wavelength campaign confirms that Mrk 335 undergoes the effect of a
patchy, medium-velocity outflowing gas in a wide range of ionization states
that seem to be persistently obscuring the nuclear continuum.
The Seyfert Galaxy Mrk 335 is known for its frequent changes of flux and
spectral shape in the X-ray band occurred during recent years. These variations
may be explained by the onset of a wind that previous, non-contemporaneous
high-resolution spectroscopy in X-ray and UV bands located at accretion disc
scale. A simultaneous new campaign by XMM-Newton and HST caught the source at
an historical low flux in the X-ray band. The soft X-ray spectrum is dominated
by prominent emission features, and by the effect of a strong ionized absorber
with an outflow velocity of 5-6X10$^3$~km~s$^{-1}$. The broadband spectrum
obtained by the EPIC-pn camera reveals the presence of an additional layer of
absorption by gas at moderate ionization covering 80% of the central source,
and tantalizing evidence for absorption in the Fe~K band outflowing at the same
velocity of the soft X-ray absorber. The HST-COS spectra confirm the
simultaneous presence of broad absorption troughs in CIV, Ly alpha, Ly beta and
OVI, with velocities of the order of 5000 km~s$^{-1}$ and covering factors in
the range of 20-30%. Comparison of the ionic column densities and of other
outflow parameters in the two bands show that the X-ray and UV absorbers are
likely originated by the same gas. The resulting picture from this latest
multi-wavelength campaign confirms that Mrk 335 undergoes the effect of a
patchy, medium-velocity outflowing gas in a wide range of ionization states
that seem to be persistently obscuring the nuclear continuum.
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