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Large Binocular Telescope observations of PSR J2043+2740*

Journal
Date Issued
2018
Author(s)
•
•
Rea, N.
•
•
Salvetti, D.
•
Breeveld, A. A.
•
•
DOI
Abstract
We present the results of deep optical imaging of the radio/γ-ray pulsar PSR J2043+2740, obtained with the Large Binocular Telescope (LBT). With a characteristic age of 1.2 Myr, PSR J2043+2740 is one of the oldest (non-recycled) pulsars detected in γ-rays, although with still a quite high rotational energy reservoir (\dot{E}_rot = 5.6 × 10^{34} erg s-1). The presumably close distance (a few hundred pc), suggested by the hydrogen column density (NH ≲ 3.6 × 1020 cm-2), would make it a viable target for deep optical observations, never attempted until now. We observed the pulsar with the Large Binocular Camera of the LBT. The only object (V = 25.44 ± 0.05) detected within ∼3 arcsec from the pulsar radio coordinates is unrelated to it. PSR J2043+2740 is, thus, undetected down to V ∼ 26.6 (3σ), the deepest limit on its optical emission. We discuss the implications of this result on the pulsar emission properties.
Volume
473
Issue
2
Start page
2000
Uri
Url
Issn Identifier
0035-8711
Ads BibCode
2018MNRAS.473.2000T
Rights
open.access
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