Millimeter interferometer observations of the magnetar 4U 0142+61

B. Posselt, K. Schreyer, Ü Ertan, S. Trippe, K. Menten, B. Klein

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The Anomalous X-ray Pulsar 4U 0142+61 is the only neutron star where it is believed that one of the long searched-for 'fallback' disks has been detected in the mid-IR by Wang et al. [1] using Spitzer. Such a disk originates from material falling back to the NS after the supernova. We search for cold circumstellar material in the 90 GHz continuum using the Plateau de Bure Interferometer. No millimeter flux is detected at the position of 4U 0142+61, the upper flux limit is 150 μJy corresponding to the 3σ noise rms level. The re-processed Spitzer MIPS 24μm data presented previously by Wang et al. [2] show some indication of flux enhancement at the position of the neutron star, albeit below the 3σ statistical significance limit. At far infrared wavelengths the source flux densities are probably below the Herschel confusion limits.

Original languageEnglish (US)
Title of host publicationAstrophysics of Neutron Stars 2010 - A Conference in Honor of M. Ali Alpar
Pages152-155
Number of pages4
DOIs
StatePublished - Oct 5 2011
EventAstrophysics of Neutron Stars 2010 - A Conference in Honor of M. Ali Alpar - Cesme, Izmir, Turkey
Duration: Aug 2 2010Aug 6 2010

Publication series

NameAIP Conference Proceedings
Volume1379
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

OtherAstrophysics of Neutron Stars 2010 - A Conference in Honor of M. Ali Alpar
CountryTurkey
CityCesme, Izmir
Period8/2/108/6/10

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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