SVS 16: The most X-ray luminous young stellar object
Astronomy & Astrophysics, 338, 923, (1998)
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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