[vsnet-alert 23575] Re: HP Cet: the best candidate of period bouncer?

Keisuke Isogai isogai at kusastro.kyoto-u.ac.jp
Thu Sep 26 17:15:26 JST 2019


I'm sorry. I forgot to describe the orbital period.
The period of this object is 0.06672 d = 96.08 min.

On 2019/09/26 16:34, Keisuke Isogai wrote:
> 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
>>>
>>
>



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