SIMBAD references

2018ApJ...865....1P - Astrophys. J., 865, 1-1 (2018/September-3)

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

POSSELT B., PAVLOV G.G., ERTAN U., CALISKAN S., LUHMAN K.L. and WILLIAMS C.C.

Abstract (from CDS):

Following up on a faint detection of a near-infrared (NIR) source at the position of the X-ray thermal isolated neutron star RX J0806.4-4123, 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 µJy at λ = 1.54 µm). 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 RX J0806.4-4123. 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.

Abstract Copyright: © 2018. The American Astronomical Society. All rights reserved.

Journal keyword(s): brown dwarfs - infrared: general - pulsars: individual: RXJ0806.4-4123 - stars: neutron

Simbad objects: 10

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2021.06.12-20:38:39

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