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Astron. Astrophys. 335, L17-L20 (1998)


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Letter to the Editor

Infrared photometry and spectroscopy of the supersoft X-ray source RX J0019.8+2156 (= QR And)

H. Quaintrell, 1, 2 and R.P. Fender, 1, 3

1 Astronomy Centre, C.P.E.S., University of Sussex, Falmer, Brighton, BN1 9QJ, UK
2 Department of Physics, The Open University, Walton Hall, Milton Keynes MK7 6AA, UK
3 Astronomical Institute "Anton Pannekoek" and Center for High-Energy Astrophysics, University of Amsterdam, Kruislaan 403, 1098 SJ Amsterdam, The Netherlands

Received 27 January 1998 / Accepted 7 April 1998

Abstract

We present JHK photometry and spectroscopy of RX J0019.8+2156. The spectrum appears to be dominated by the accretion disc to at least 2.4 µm, over any other source of emission. We find Paschen, Brackett and He II lines strongly in emission, but no He I. There are satellite lines approximately 850km s-1 either side of the strongest, unblended hydrogen lines. These satellite lines may be the spectral signature of jets from the accretion disc.

Key words: accretion, accretion disks – ISM: jets and outflows – stars: emission-line – X-rays: stars – infrared: stars – stars: individual: RX J0019.8+2156

Send offprint requests to: H.Quaintrell@open.ac.uk

© European Southern Observatory (ESO) 1998

Online publication: June 12, 1998

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