English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  VLA and ALMA observations of the lensed radio-quiet quasar SDSS J0924+0219: a molecular structure in a 3 μJy radio source

Badole, S., Jackson, N., Hartley, P., Sluse, D., Stacey, H., & Vives-Arias, H. (2020). VLA and ALMA observations of the lensed radio-quiet quasar SDSS J0924+0219: a molecular structure in a 3 μJy radio source. Monthly Notices of the Royal Astronomical Society, 496(1), 138-151. doi:10.1093/mnras/staa1488.

Item is

Basic

show hide
Genre: Journal Article

Files

show Files
hide Files
:
VLA and ALMA observations of the lensed radio-quiet quasar SDSS J0924+0219 a molecular structure in a 3 μJy radio source.pdf (Any fulltext), 8MB
 
File Permalink:
-
Name:
VLA and ALMA observations of the lensed radio-quiet quasar SDSS J0924+0219 a molecular structure in a 3 μJy radio source.pdf
Description:
-
Visibility:
Private
MIME-Type / Checksum:
application/pdf
Technical Metadata:
Copyright Date:
-
Copyright Info:
-
License:
-

Locators

show

Creators

show
hide
 Creators:
Badole, Shruti, Author
Jackson, Neal, Author
Hartley, Philippa, Author
Sluse, Dominique, Author
Stacey, Hannah1, Author              
Vives-Arias, Héctor, Author
Affiliations:
1Computational Structure Formation, MPI for Astrophysics, Max Planck Society, ou_2205642              

Content

show
hide
Free keywords: -
 Abstract: We present Karl G. Jansky Very Large Array (VLA) and Atacama Large Millimetre Array (ALMA) observations of SDSS J0924+0219, a z = 1.524 radio-quiet lensed quasar with an intrinsic radio flux density of about 3 μJy. The four lensed images are clearly detected in the radio continuum and the CO(5–4) line, whose centroid is at z = 1.5254 ± 0.0001, with a marginal detection in the submillimetre continuum. The molecular gas displays ordered motion, in a structure approximately 1–2.5 kpc in physical extent, with typical velocities of 50–100 km s−1. Our results are consistent with the radio emission being emitted from the same region, but not with a point source of radio emission. SDSS J0924+0219 shows an extreme anomaly in the flux ratios of the two merging images in the optical continuum and broad emission lines, suggesting the influence of microlensing by stars in the lensing galaxy. We find the flux ratio in the radio, submillimetre continuum and CO lines to be slightly greater than 1 but much less than that in the optical, which can be reproduced with a smooth galaxy mass model and an extended source. Our results, supported by a microlensing simulation, suggest that the most likely explanation for the optical flux anomaly is indeed microlensing.

Details

show
hide
Language(s):
 Dates: 2020-05-30
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1093/mnras/staa1488
Other: LOCALID: 3260748
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Monthly Notices of the Royal Astronomical Society
  Other : Mon. Not. R. Astron. Soc.
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Oxford : Oxford University Press
Pages: - Volume / Issue: 496 (1) Sequence Number: - Start / End Page: 138 - 151 Identifier: ISSN: 1365-8711
CoNE: https://pure.mpg.de/cone/journals/resource/1000000000024150