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Searching for the optical counterparts of two young γ -ray pulsars

  • R. P. Mignani
  • , V. Testa
  • , M. Marelli
  • , A. de Luca
  • , M. Pierbattista
  • , M. Razzano
  • , D. Salvetti
  • , A. Belfiore
  • , A. Shearer
  • , P. Moran
  • INAF-Istituto di Astrofisica Spaziale e Fisica Cosmica
  • University of Zielona G´ora
  • INAF-Osservatorio Astronomico di Roma
  • INFN-Pavia
  • Maria Curie-Sklodowska University
  • Istituto Nazionale di Fisica Nucleare, Sezione di Pisa

Research output: Contribution to a Journal (Peer & Non Peer)Articlepeer-review

4 Citations (Scopus)

Abstract

We report on the first deep optical observations of two γ-ray pulsars, both among the very first discovered by the Fermi Gamma-ray Space Telescope. The two pulsars are the radio-loud PSR J1907+0602 in the TeV pulsar wind nebula (PWN) MGRO J1908+06 and the radio-quiet PSR J1809-2332 in the 'Taz' radio/X-ray PWN. These pulsars are relatively young and energetic and have been both detected in the X-rays by XMM-Newton, which makes them viable targets for optical observations. We observed the pulsar fields in the B and Vbands with the Very Large Telescope (VLT) in 2015 June/July to search for their optical counterparts. Neither of the two pulsars has been detected down to 3a limiting magnitudes of mv ~ 26.9 and ~27.6 for PSR J1907+0602 and PSR J1809-2332, respectively. We discuss these results in the framework of the multiwavelength emission properties of pulsars.

Original languageEnglish
Pages (from-to)2932-2938
Number of pages7
JournalMonthly Notices of the Royal Astronomical Society
Volume463
Issue number3
DOIs
Publication statusPublished - 11 Dec 2016

Keywords

  • Stars: neutron

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