IKT16: Discovery of a 22 ms energetic rotation-powered pulsar in the Small Magellanic Cloud
Date Issued
2021
Author(s)
Abstract
We report here on the discovery with XMM-Newton of pulsations at 22 ms from
the central compact source associated with IKT16, a supernova remnant in the
Small Magellanic Cloud (SMC). The measured spin period and spin period
derivative correspond to 21.7661076(2) ms and $2.9(3)\times10^{-14}$
s,s$^{-1}$, respectively. Assuming standard spin-down by magnetic dipole
radiation, the spin-down power corresponds to $1.1\times10^{38}$,erg,s$^{-1}$
implying a Crab-like pulsar. This makes it the most energetic pulsar discovered
in the SMC so far and a close analogue of PSR J0537--6910, a Crab-like pulsar
in the Large Magellanic Cloud. The characteristic age of the pulsar is 12 kyr.
Having for the first time a period measure for this source, we also searched
for the signal in archival data collected in radio with the Parkes telescope
and in Gamma-rays with the Fermi/LAT, but no evidence for pulsation was found
in these energy bands.
Volume
507
Issue
1
Start page
L1
Issn Identifier
1745-3925
Rights
open.access
File(s)![Thumbnail Image]()
Loading...
Name
Maitra21.pdf
Description
Pdf editoriale
Size
669.3 KB
Format
Adobe PDF
Checksum (MD5)
01e5e091da24daa6151447c7a732d700