SN 2018pt
RA/DEC (2000)
12:56:06.25 +32:03:15.90
194.026042 +32.054417
Type
SN Ia-91T-like
Redshift
0.127
Source Group
TNTS
Discovery Date
2018-02-07 16:47:59
TNS AT
Y
Public
Y
Host Name
SDSS J125606.27+320314.6
Discovery Mag
18.4
Filter
Clear-
Discoverer/s
Zhijian Xu,Wenxiong Li(THU),Tianmeng Zhang (NAOC), Zesheng Yang(THU), Hanjie Tan(CCU),Hao Song(THU), Xiaofeng Wang(THU), Jun Mo(THU),Xu Zhou(NAOC) on behalf of the TNTS
 2018-02-09 18:14:24 Lijiang-2.4m / YFOSC (TNTS)
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Spectra
IDObs-date (UT)Tel / InstExp-TimeObserver/sReducer/sGroupSpectrum ascii fileSpectrum fits fileSpec. TypeAssoc. GroupsEnd prop. periodRemarks
17172018-02-09 18:14:24Lijiang-2.4m / YFOSC1700Jujia ZhangTNTS tns_2018pt_2018-02-09.76_Lijiang-2.4m_YFOSC_TNTS.datObjectTNTS
Light Curves
FilterTel / InstObs-date rangePhotometry
Clear-BAO-0.6m_BATC2018-02-07 16:47:59 - 2018-02-07 16:47:591
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
252752018-02-07 16:47:5918.4VegaMagClear-BAO-0.6m_BATC
AT Reportings
IDTime received (UT)SenderReporter/s (Discoverer/s)GroupRADECDiscovery date (UT)Discovery Mag.FilterRelated filesAT TypeInternal nameAssoc. GroupsEnd prop. periodRemarks
167982018-02-08 15:27:17M51Zhijian Xu,Wenxiong Li(THU),Tianmeng Zhang (NAOC), Zesheng Yang(THU), Hanjie Tan(CCU),Hao Song(THU), Xiaofeng Wang(THU), Jun Mo(THU),Xu Zhou(NAOC) on behalf of the TNTSTNTS12:56:06.25+32:03:15.902018-02-07 16:47:5918.4Clear-PSNTNTSThis possible supernova was discovered by the 0.6 m schmidt telescope at Xinglong Observatory during the Tsinghua-NAOC Transient Survey (TNTS). The transient is located 0" west and 1" south of the center of SDSS J125606.27+320314.6
Classification Reportings
IDTime received (UT)SenderClassifier/sGroupClassificationRedshiftRelated filesAssoc. GroupsEnd prop. periodRemarks
17122018-02-10 13:42:14jujiaJujia Zhang, Jianguo Wang (YNAO), Wenxiong Li, Xiaofeng Wang (THU), Hanjie Tan (CCU), Tianmeng Zhang, Xu Zhou (NAOC)TNTSSN Ia-91T-like0.127TNTSThe spectrum of SN 2018pt matches with the 91T-like type Ia supernova SN 2005eq at t = -4 days relative to the maximum light. Given a redshift of 0.127 (from SNID fit) for its host galaxy, an expansion velocity of about 9300 km/s can be deduced from the Si II 635.5 absorption minimum. Given this redshift (z~0.127) the absolute brightness of this SN is about -20.2 mag.

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