[vsnet-chat 77] Re: SSXS Catalog

[Taichi Kato <tkato@kusastro.kyoto-u.ac.jp>]

Dear Fraser and chatters,

>    >RX J0513.9-6951 05 13 50.8  -69 51 47  V=16.7  SSS  = HV 5682
> 
> This is LMC V1614 in the GCVS volume 5; which is catalogued as an SR,
> mag 16.0-17.2p, period 304.0 days.

    It's very interesting since RX J0513.9-6951 is known to show semiregular
transition between 'high' and 'low' states.  The Harvard study probably
already detected this variability.  Quite interesting is that the object
emits soft X-rays predominantly during its optical 'low' state.

>    >SMC 3           00 48 20.8  -73 31 53  V=15.5  Sy   = RX J0048.
> 
> This one appears to be missing from the GCVS vol 5; but Morel's "Visual
> Atlas of the Small Magellanic Cloud" shows this object, and comparisons
> down to 14th magnitude.  A spectral class of O9III-V is quoted.

    This star was described in this SSXS catalog to show 1-mag outburst.
Worth watching?

>    >V1974 Cyg       20 30 31.2  -52 37 53  V=4.5-21 N
> Shouldn't that Dec read "+52 37 53" ?

    Thank you for your correction.  This nova is Nova Cyg 1992, the brightest
nova since 1975 in the northern hemisphere.

Regards,
Taichi Kato

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