GW Lib

Subscribe to Syndicate
RA: 
15:19:55.4
VSX OID: 
17544
DEC: 
-25:00:25.1
JD Last Observed: 
2456455.13000
Minimum Magnitude: 
18.50
Minimum Magnitude Band: 
p
Observations Required?: 
Yes
Additional Instructions: 
Let's see of we can get an intensive GW Lib campaign over the next week. The recent HST observation showed a strangely high temperature, and some high-amplitude fast oscillations. But since all HST observations are very brief windows into a star's soul, we absolutely rely on earthbound telescopes to tell us what the overall story is. In particular, does the star still exhibit the 20 minute and 4.2 hour variations it did shortly after its dwarf-nova outburst? If so, we can use the amplitudes at 6000 A (from our data) and 1500 A (from the HST data) to obtain an excellent constraint on the source temperature...which is sometimes exactly what's needed to determine the origin(s). Excellent target, may have switched pulsation modes, or had an unobserved outburst recently. Are the 19 minute pulsations still present?