Discovery of extended infrared emission around the neutron star RXJ0806.4-4123

Warning The system is temporarily closed to updates for reporting purpose.

Posselt, B. and Pavlov, G. G. and Ertan, Ünal and Çalışkan, Şirin and Luhman, K. L. and Williams, C. C. (2018) Discovery of extended infrared emission around the neutron star RXJ0806.4-4123. Astrophysical Journal, 865 (1). ISSN 0004-637X (Print) 1538-4357 (Online)

This is the latest version of this item.

Full text not available from this repository. (Request a copy)


Following up on a faint detection of a near-infrared (NIR) source at the position of the X-ray thermal isolated neutron star RXJ0806.4-4123, we present new Hubble Space Telescope observations in the H-band. The NIR source is unambiguously detected with a Vega magnitude of 23.7 +/- 0.2 (flux density of 0.40 +/- 0.06 mu Jy at lambda = 1.54 mu m). The source position is coincident with the neutron star position, and the implied NIR flux is strongly in excess of what one would expect from an extrapolation of the optical-UV spectrum of RXJ0806.4-4123. The NIR source is extended, with a size of at least 0 8, and shows some asymmetry. The conservative upper limit on the flux contribution of a point source is 50%. Emission from gas and dust in the ambient diffuse interstellar medium can be excluded as a cause for the extended emission. The source parameters are consistent with an interpretation as either the first NIR-only detected pulsar wind nebula or the first resolved disk around an isolated neutron star.
Item Type: Article
Uncontrolled Keywords: brown dwarfs; infrared: general; pulsars: individual (RXJ0806.4-4123); stars: neutron
Subjects: Q Science > QB Astronomy > QB460-466 Astrophysics
Q Science > QC Physics
Divisions: Faculty of Engineering and Natural Sciences > Basic Sciences > Physics
Faculty of Engineering and Natural Sciences
Depositing User: Ünal Ertan
Date Deposited: 11 Dec 2018 10:30
Last Modified: 26 Apr 2022 10:01

Available Versions of this Item

Actions (login required)

View Item
View Item