The SOUX AGN sample: SDSS-XMM-Newton optical, ultraviolet, and X-ray selected active galactic nuclei spanning a wide range of parameter space sample definition
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F23%3A00571240" target="_blank" >RIV/67985815:_____/23:00571240 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1093/mnras/stad221" target="_blank" >https://doi.org/10.1093/mnras/stad221</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1093/mnras/stad221" target="_blank" >10.1093/mnras/stad221</a>
Alternative languages
Result language
angličtina
Original language name
The SOUX AGN sample: SDSS-XMM-Newton optical, ultraviolet, and X-ray selected active galactic nuclei spanning a wide range of parameter space sample definition
Original language description
We assemble a sample of 696 type 1 active galactic nuclei (AGN) up to a redshift of z = 2.5, all of which have an SDSS spectrum containing at least one broad emission line (H alpha, H beta, or Mg ii) and an XMM-Newton X-ray spectrum containing at least 250 counts in addition to simultaneous optical/ultraviolet photometry from the XMM Optical Monitor. Our sample includes quasars and narrow-line Seyfert 1s: thus our AGN span a wide range in luminosity, black hole mass, and accretion rate. We determine single-epoch black hole mass relations for the three emission lines and find that they provide broadly consistent mass estimates whether the continuum or emission line luminosity is used as the proxy for the broad emission line region radius. We explore variations of the UV/X-ray energy index alpha(ox) with the UV continuum luminosity and with black hole mass and accretion rate, and make comparisons to the physical quasar spectral energy distribution model qsosed. The majority of the AGN in our sample lie in a region of parameter space with 0.02 < L/L-Edd < 2 as defined by this model, with narrow-line type 1 AGN offset to lower masses and higher accretion rates than typical broad-line quasars. We find differences in the dependence of alpha(ox) on UV luminosity between both narrow/broad-line and radio-loud/quiet subsets of AGN: alpha(ox) has a slightly weaker dependence on UV luminosity for broad-line AGN and radio-loud AGN have systematically harder alpha(ox).
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10308 - Astronomy (including astrophysics,space science)
Result continuities
Project
<a href="/en/project/GJ19-05599Y" target="_blank" >GJ19-05599Y: Unification of Black Holes across the Mass Scale</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Monthly Notices of the Royal Astronomical Society
ISSN
0035-8711
e-ISSN
1365-2966
Volume of the periodical
520
Issue of the periodical within the volume
2
Country of publishing house
US - UNITED STATES
Number of pages
258
Pages from-to
2781-2805
UT code for WoS article
000943150500007
EID of the result in the Scopus database
2-s2.0-85160325095