SVS 16: The most X-ray luminous young stellar object

Details SVS 16: The most X-ray luminous young stellar object SVS 16: The most X-ray luminous young stellar object

Oct 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998a%26a...338..923p&link_type=abstract

Astronomy and Astrophysics, v.338, p.923-932 (1998)

Astronomy and Astrophysics

Astrophysics

15

Stars: Pre-Main Sequence, Stars: Binaries: Visual, Stars: Individual: Svs 16 (Ngc 1333), Infrared: Stars, X-Rays: Stars

Scientific paper

We present new infrared and X-ray data on the optically invisible infrared source SVS 16 in the NGC 1333 star forming region. We show that SVS 16 is a binary with a separation of 1''. The infrared spectrum displays photospheric atomic and CO absorption lines, and thus shows that SVS 16 is a highly obscured (A_V ~ 26 mag) low mass young stellar object. Our infrared data allow us to derive basic stellar parameters of SVS 16. We find that the binary system probably consists of two M-type pre-main sequence stars, which seem to be younger than a few 10(5 yrs) . Our new ROSAT PSPC data confirm the previous detection with the ROSAT HRI and show that SVS 16 has an extremely high quiescent X-ray luminosity of about 2 x 10(32) erg/sec in the 0.1 - 2.4 keV band, making it the young stellar object with the brightest quiescent X-ray emission ever detected. We discuss the origin of the strong X-ray emission.

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