Reverberation mapping of distant quasars: Time lag determination using different methods

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F19%3A00520541" target="_blank" >RIV/67985815:_____/19:00520541 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1002/asna.201913659" target="_blank" >https://doi.org/10.1002/asna.201913659</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/asna.201913659" target="_blank" >10.1002/asna.201913659</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Reverberation mapping of distant quasars: Time lag determination using different methods

Popis výsledku v původním jazyce

By applying different statistically robust methods, we analyze the time lag between the continuum and ionized line-emission (Mg II line) light curves for the distant bright quasar CTS C30.10 (redshift z similar to 0.9). The data were obtained by the 10-meter South African Large Telescope (SALT) telescope in South Africa. In detail, we demonstrate the application of several methods using the interpolated cross-correlation function (ICCF), discrete correlation function (DCF), z-transformed discrete correlation function (zDCF), von Neumann estimator, and the JAVELIN code package. In particular, we discuss the uncertainties of these methods. In conclusion, we find that the quasar lies on the broad-line region (BLR) size-monochromatic luminosity power-law scaling, RBLR proportional to L51001/2, which was already confirmed for low-redshift sources. In case, the BLR size-luminosity relation holds for other distant sources, quasars could be used to probe cosmological models as “standard candles” complementary to supernovae Ia.

Název v anglickém jazyce

Reverberation mapping of distant quasars: Time lag determination using different methods

Popis výsledku anglicky

By applying different statistically robust methods, we analyze the time lag between the continuum and ionized line-emission (Mg II line) light curves for the distant bright quasar CTS C30.10 (redshift z similar to 0.9). The data were obtained by the 10-meter South African Large Telescope (SALT) telescope in South Africa. In detail, we demonstrate the application of several methods using the interpolated cross-correlation function (ICCF), discrete correlation function (DCF), z-transformed discrete correlation function (zDCF), von Neumann estimator, and the JAVELIN code package. In particular, we discuss the uncertainties of these methods. In conclusion, we find that the quasar lies on the broad-line region (BLR) size-monochromatic luminosity power-law scaling, RBLR proportional to L51001/2, which was already confirmed for low-redshift sources. In case, the BLR size-luminosity relation holds for other distant sources, quasars could be used to probe cosmological models as “standard candles” complementary to supernovae Ia.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10308 - Astronomy (including astrophysics,space science)

Projekt

<a href="/cs/project/GC19-01137J" target="_blank" >GC19-01137J: Největší černé díry na obloze: vznik a vývoj struktur na škálách horizontu</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Astronomische Nachrichten

ISSN

1521-3994

e-ISSN

—

Svazek periodika

340

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

9

Strana od-do

577-585

Kód UT WoS článku

000493339600004

EID výsledku v databázi Scopus

2-s2.0-85074110492