2015bi | Transient Name Server

RA/DEC (2000)

14:32:15.300 +26:19:31.60

218.06375 +26.325444

Type

SN IIb

Redshift

0.016

Discovery Report Classification Report

Reporting Group

ASAS-SN

Discovering Data Source

ASAS-SN

Discovery Date

2015-12-31 14:52:48.000

TNS AT

Y

Public

Y

Host Name

VV 839

Host Redshift

0.016014

Discovery Mag

16.58

Filter

V-Johnson

Reporter/s

E. Conseil, S. Dong, J.S. Brown, K.Z. Stanek, T.W.-S. Holoien, C.S. Kochanek, D. Godoy-Rivera, U. Basu, B.J. Shappee, J.L. Prieto, D. Bersier, P. Chen, J. Brimacombe, for the ASAS-SN team

NED SIMBAD DECaLS PanSTARRS-1 SkyMapper VizieR WISE DSS ADS

Light curves

▌

Gaia_Gaia-photometric_G

▌

ASASSN-1_Brutus_V

Pointer position (MJD, Mag, Abs.Mag): (0.00, 0.00, 0.00)

Spectra

Select	ID	Obs-date (UT)	Tel / Inst	Exp-Time	Observer/s	Reducer/s	Group	Spectrum ascii file	Spectrum fits file	Spec. Type	Assoc. Groups	End prop. period	Remarks
	7	2016-01-08 19:52:41	XLT / BFOSC	3600	Xiaofeng Wang	Liming Rui	None	tns_2015bi_2016-01-08_19:52:41_BAO-2.16m_BFOSC.txt		Object
Binning factor: (rounded to nearest integer >1) Mouse hovers at WL: 0 (rest), 0 (observed) ▌Show H at z=v_exp= km/s ▌Show He at z=v_exp= km/s ▌Show He II at z=v_exp= km/s ▌Show C II at z=v_exp= km/s ▌Show C III at z=v_exp= km/s ▌Show C IV at z=v_exp= km/s ▌Show N II at z=v_exp= km/s ▌Show N III at z=v_exp= km/s ▌Show N IV at z=v_exp= km/s ▌Show N V at z=v_exp= km/s ▌Show O at z=v_exp= km/s ▌Show [O I] at z=v_exp= km/s ▌Show O II at z=v_exp= km/s ▌Show [O II] at z=v_exp= km/s ▌Show [O III] at z=v_exp= km/s ▌Show O V at z=v_exp= km/s ▌Show O VI at z=v_exp= km/s ▌Show Na at z=v_exp= km/s ▌Show Mg at z=v_exp= km/s ▌Show Mg II at z=v_exp= km/s ▌Show Si II at z=v_exp= km/s ▌Show S II at z=v_exp= km/s ▌Show Ca II at z=v_exp= km/s ▌Show [Ca II] at z=v_exp= km/s ▌Show Fe II at z=v_exp= km/s ▌Show Fe III at z=v_exp= km/s ▌Show Å at z=v_exp= km/s ▌Show Å at z=v_exp= km/s ▌Show Å at z=v_exp= km/s ▌Show Å at z=v_exp= km/s ▌Show Tellurics ▌Show Galaxy lines at z= ▌Show WR-WN at z=v_exp= km/s ▌Show WR-WC/O at z=v_exp= km/s Remarks

Light Curves

Filter

Tel / Inst

Obs-date range

JD Range

Photometry

G-Gaia

Gaia_Gaia-photometric

2015-12-29 00:23:02 - 2016-01-29 10:16:19

2457385.5159954 - 2457416.9279977

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
3774	2016-01-29 10:16:19	2457416.9279977	17.65	0.2		ABMag	G-Gaia	Gaia_Gaia-photometric	60	Robot
3773	2015-12-29 00:23:02	2457385.5159954			21.5	ABMag	G-Gaia	Gaia_Gaia-photometric		Robot	[Last non detection]

V-Johnson

ASASSN-1_Brutus

2015-12-13 15:36:00 - 2015-12-31 14:52:48

2457370.15 - 2457388.12

3

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
2	2015-12-31 14:52:48	2457388.12	16.58	0.11		VegaMag	V-Johnson	ASASSN-1_Brutus
3	2015-12-23 15:07:12	2457380.13	17.23	0.2		VegaMag	V-Johnson	ASASSN-1_Brutus
1	2015-12-13 15:36:00	2457370.15			17.76	VegaMag	V-Johnson	ASASSN-1_Brutus			[Last non detection]

AT Reports

ID

Time received (UT)

Sender

Reporter/s

Reporting group

Disc. Data Source

RA

DEC

Discovery date (UT)

Discovery Mag.

Filter

Related files

AT Type

Host name

Internal name

Assoc. Groups

End prop. period

Remarks

ADS Bibcode

Unreal

Auto classification

3271

2016-07-22 10:37:58

Gaia_Bot1

A. Delgado, D. Harrison, S. Hodgkin et al.

GaiaAlerts

GaiaAlerts

14:32:15.300

+26:19:31.60

2016-01-29 10:16:19.000

17.65

G-Gaia

PSN

Gaia16abm

GaiaAlerts

ASASSN-15uy classified here: http://www.astronomerstelegram.org/?read=8525

N

1

2016-01-01 08:35:15

Subo Dong

E. Conseil, S. Dong, J.S. Brown et al.

ASAS-SN

ASAS-SN

14:32:15.310

+26:19:32.02

2015-12-31 14:52:48.000

16.58

V-Johnson

1

PSN

VV 839

ASASSN-15uy

ASAS-SN

2016TNSTR...1....1C

N

Related files

File	Comments	Last Modified (UT)	Modified By
ASAS-SN_2015bi_atrep_1.png		2016-01-01 08:36:47	Subo Dong

Classification Reports

ID

Time received (UT)

Sender

Classifier/s

Group

Classification

Redshift

Spectra

Related files

Assoc. Groups

End prop. period

Remarks

ADS Bibcode

5

2016-01-11 09:21:29

Xiaofeng Wang

Liming Rui, Xiaofeng Wang, Fang Huang (Tsinghua University), Tiameng Zhang, Meng Zhai (NAOC)

None

SN IIb

0.016

1

1

Cross-correlation with a library of supernova spectra using the spectral comparison tool Gelato (Harutyunyan et al., 2008, A&A, 488, 383) shows that the spectrum matches with a few type IIb supernovae within 1-2 weeks from the maximum light.

2016TNSCR..13....1R

Related files

File	Comments	Last Modified (UT)	Modified By
general_2015bi_classrep_5.ps		2016-01-11 09:21:29	Xiaofeng Wang

Spectra

ID	Obs-date (UT)	Tel / Inst	Exp-Time	Observer/s	Reducer/s	Group	Spectrum ascii file	Spectrum fits file	Spec. Type	Assoc. Groups	End prop. period	Remarks
7	2016-01-08 19:52:41	XLT / BFOSC	3600	Xiaofeng Wang	Liming Rui	None	tns_2015bi_2016-01-08_19:52:41_BAO-2.16m_BFOSC.txt		Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 3271 of Group GaiaAlerts
Previous RA, DEC: 14:32:15.310, +26:19:32.02 (218.063792, +26.325561)
Updated RA, DEC: 14:32:15.300, +26:19:31.60 (218.06375, 26.325444)

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