[vsnet-outburst 24118] HP Cet: the best candidate of period bouncer?

[Keisuke Isogai]

HP Cet: the best candidate of period bouncer?

This object is known as the SDSS source SDSS J023322.61+005059.5,
and the orbital period was spectroscopically measured in Southworth et al.
2006  (https://arxiv.org/abs/astro-ph/0609196). In combination with
the no previous outbursts, the object is the best candidate of period
bouncers.

On 2019/09/26 16:20, Keisuke Isogai wrote:
> HP Cet (= TCP J02332248+0051018): superhump
>
> Sano-san has reported the 2 hrs observation. The light curve shows
> a superhump with the amplitude of 0.15 mag and period of about 0.06 d.
> Further observations are needed.
>
> On 2019/09/25 5:22, Patrick Schmeer pasc1312-aavso at yahoo.de via vsnet-alert wrote:
>> HP Ceti  (UGWZ:)
>> https://www.aavso.org/vsx/index.php?view=detail.top&oid=132110
>>
>> Recent ASAS-SN Sky Patrol (Shappee et al. 2014ApJ...788...48S
>> and Kochanek et al. 2017PASP..129j4502K) data and light curve:
>> https://asas-sn.osu.edu/light_curves/5ca91d4b-8ce6-4014-b289-e4bcb0456474
>>
>> CETHP 20190908.999 <16.40g ASN
>> CETHP 20190909.976  13.75g ASN
>> CETHP 20190910.449  12.57g ASN
>> CETHP 20190911.583  12.13g ASN
>> CETHP 20190912.222  12.33g ASN
>> CETHP 20190920.951  13.52g ASN
>> CETHP 20190921.068  13.56g ASN
>> CETHP 20190924.139  13.61g ASN
>> CETHP 20190924.230  13.61g ASN
>> CETHP 20190924.643  13.61g ASN
>>
>> CBAT "Transient Object Followup Reports":
>> http://www.cbat.eps.harvard.edu/unconf/followups/J02332248+0051018.html
>>
>> Time-resolved photometry is required.
>>
>> Clear skies,
>> Patrick
>>
>