Welcome!

Welcome to the issue 4 of the e-

MERLIN newsletter. We will be

publishing e-MERLIN-related

news and science highlights,

including calls for proposals,

adverts for summer schools and

links to e-MERLIN partners like

Last week at JBCA (23-25

October), we held the first e-

MERLIN data school. Participants

learnt about using the e-MERLIN

CASA Pipeline (eMCP) to

calibrate and image e-MERLIN

data. The ORP sponsored event

enabled students from across the

world to bring their own e-

MERLIN data to get expert help

future, including hybrid versions

so that more people can attend.

Please get in touch if you are

interested in in-person or hybrid

events such as this in the future.

e-MERLIN detections of offset dual-

SMBH candidates proves fruitful

Dual super massive black holes (SMBH) may appear in

the post-merger stage of galaxies and as the system

evolves the two SMBHs would get closer to each other

and coalesce. Such dual SMBHs may appear as a dual

uses the astrometric jitter of the photocenter in Gaia

observations to identify candidate dual AGNs. In this

study, five such sources were selected for e-MERLIN

follow-up and four of them showed significant radio-

optical offsets, suggesting an offset radio-loud nucleus

and the optical photocenter of the dual SMBH system.

This large offset is not normally seen in quasars, further

favouring the dual or off-nucleus scenario. Thus, e-

MERLIN observations of such systems could be a

potentially fruitful probe of dual-SMBHs in the future.!