A search for near infrared counterparts of three pulsar wind nebulae - INSU - Institut national des sciences de l'Univers Access content directly
Journal Articles Astronomy and Astrophysics - A&A Year : 2011

A search for near infrared counterparts of three pulsar wind nebulae


Context. While pulsar wind nebulae (PWNe) and their associated isolated pulsars are commonly detected at X-ray energies, they are much rarer at near infrared (nIR) and optical wavelengths.
Aims: Here we examine three PWN systems in the Galactic plane - IGR J14003-6326, HESS J1632 - 478 and IGR J18490 - 0000 - in a bid to identify optical/nIR emission associated with either the extended PWNe or their previously detected X-ray point sources.
Methods: We obtain optical/nIR images of the three fields with the ESO - New Technology Telescope and apply standard photometric and astrometric calibrations.
Results: We find no evidence of any extended emission associated with the PWNe in any of the fields; neither do we find any new counterparts to the X-ray point sources, except to confirm the magnitude of the previously identified counterpart candidate of IGR J18490 - 0000.
Conclusions: Further observations are required to confirm the association of the nIR source to IGR J18490 - 0000 and to detect counterparts to IGR J14003-6326 and HESS J1632 - 478, while a more accurate X-ray position is required to reduce the probability of a chance superposition in the field of the latter.

Based on observations collected at the European Organisation for Astronomical Research in the Southern Hemisphere, Chile under ESO programs 080.D-0864, 081.D-0401, 084.D-0535 (P.I. Chaty).

Fichier principal
Vignette du fichier
aa17321-11.pdf (425.43 Ko) Télécharger le fichier
Origin Publisher files allowed on an open archive

Dates and versions

insu-03622855 , version 1 (29-03-2022)




P. A. Curran, S. Chaty, J. A. Zurita Heras, A. Coleiro. A search for near infrared counterparts of three pulsar wind nebulae. Astronomy and Astrophysics - A&A, 2011, 534, ⟨10.1051/0004-6361/201117321⟩. ⟨insu-03622855⟩
30 View
14 Download



Gmail Mastodon Facebook X LinkedIn More