St Andrews Research Repository

St Andrews University Home
View Item 
  •   St Andrews Research Repository
  • University of St Andrews Research
  • University of St Andrews Research
  • University of St Andrews Research
  • View Item
  •   St Andrews Research Repository
  • University of St Andrews Research
  • University of St Andrews Research
  • University of St Andrews Research
  • View Item
  •   St Andrews Research Repository
  • University of St Andrews Research
  • University of St Andrews Research
  • University of St Andrews Research
  • View Item
  • Login
JavaScript is disabled for your browser. Some features of this site may not work without it.

The luminosity-dependent contribution from the broad line region to the wavelength-dependent lags in Mrk 110

Thumbnail
View/Open
Vincentelli_2022_MNRASL_luminosity_dependent_contribution_Mrk_110_AAM.pdf (807.2Kb)
Date
29/01/2022
Author
Vincentelli, F M
McHardy, I
Santisteban, J V Hernández
Cackett, E M
Gelbord, J
Horne, Keith
Miller, J A
Lobban, A
Funder
Science & Technology Facilities Council
Grant ID
ST/R00824/1
Keywords
Galaxies: active
Galaxies: individual: Mrk 110
Accretion
Accretion discs
QB Astronomy
QC Physics
DAS
Metadata
Show full item record
Altmetrics Handle Statistics
Altmetrics DOI Statistics
Abstract
We have measured the wavelength-dependent lags between the X-ray, UV and optical bands in the high accretion rate (⁠L/LEdd≈40 per cent⁠) Active Galactic Nucleus Mrk 110 during two intensive monitoring campaigns in February and September 2019. We divide the observations into three intervals with different X-ray luminosities. The first interval, already published in Vincentelli et al. (2021), has the lowest X-ray luminosity and did not exhibit the U-band excess positive lag, or the X-ray excess negative lag that is seen in most AGN. However, these excess lags are seen in the two subsequent intervals of higher X-ray luminosity. Although the data are limited, the excess lags appear to scale with X-ray luminosity. Our modelling shows that lags expected from reprocessing of X-rays by the accretion disc vary hardly at all with increasing luminosity. Therefore, as the U-band excess almost certainly arises from Balmer continuum emission from the broad line region (BLR), we attribute these lag changes to changes in the contribution from the BLR. The change is easily explained by the usual increase in the inner radius of the BLR with increasing ionising luminosity.
Citation
Vincentelli , F M , McHardy , I , Santisteban , J V H , Cackett , E M , Gelbord , J , Horne , K , Miller , J A & Lobban , A 2022 , ' The luminosity-dependent contribution from the broad line region to the wavelength-dependent lags in Mrk 110 ' , Monthly Notices of the Royal Astronomical Society: Letters , vol. Advance Article . https://doi.org/10.1093/mnrasl/slac009
Publication
Monthly Notices of the Royal Astronomical Society: Letters
Status
Peer reviewed
DOI
https://doi.org/10.1093/mnrasl/slac009
ISSN
1745-3925
Type
Journal article
Rights
Copyright © 2022 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society. This work has been made available online in accordance with publisher policies or with permission. Permission for further reuse of this content should be sought from the publisher or the rights holder. This is the author created accepted manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1093/mnrasl/slac009.
Description
Funding: FMV and IMH were supported for this work by the STFC grant ST/R000638/1. JVHS and KDH acknowledges support from STFC grant ST/R000824/1. EMC & JM gratefully acknowledge support from the NSF through grant AST-1909199.
Collections
  • University of St Andrews Research
URI
http://hdl.handle.net/10023/24935

Items in the St Andrews Research Repository are protected by copyright, with all rights reserved, unless otherwise indicated.

Advanced Search

Browse

All of RepositoryCommunities & CollectionsBy Issue DateNamesTitlesSubjectsClassificationTypeFunderThis CollectionBy Issue DateNamesTitlesSubjectsClassificationTypeFunder

My Account

Login

Open Access

To find out how you can benefit from open access to research, see our library web pages and Open Access blog. For open access help contact: openaccess@st-andrews.ac.uk.

Accessibility

Read our Accessibility statement.

How to submit research papers

The full text of research papers can be submitted to the repository via Pure, the University's research information system. For help see our guide: How to deposit in Pure.

Electronic thesis deposit

Help with deposit.

Repository help

For repository help contact: Digital-Repository@st-andrews.ac.uk.

Give Feedback

Cookie policy

This site may use cookies. Please see Terms and Conditions.

Usage statistics

COUNTER-compliant statistics on downloads from the repository are available from the IRUS-UK Service. Contact us for information.

© University of St Andrews Library

University of St Andrews is a charity registered in Scotland, No SC013532.

  • Facebook
  • Twitter