2017jet | Transient Name Server

RA/DEC (2000)

08:37:01.310 +81:41:45.38

129.255458 +81.695939

Type

SN Ia-91T-like

Redshift

0.04

Discovery Report Classification Report

Reporting Group

ASAS-SN

Discovering Data Source

ASAS-SN

Discovery Date

2017-12-26 12:00:00.000

TNS AT

Y

Public

Y

Host Name

GALEXASC J083701.19+814145.7

Discovery Mag

16.8

Filter

V-Johnson

Reporter/s

K. Z. Stanek, for the ASAS-SN team

NED SIMBAD DECaLS PanSTARRS-1 SkyMapper VizieR WISE DSS ADS

Light curves

▌

ASASSN-4_Leavitt_g

▌

Gaia_Gaia-photometric_G

▌

PS1_GPC1_i

▌

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
	1597	2017-12-28 11:31:12	P200 / DBSP		S. Bose, P. Chen	S. Bose	ASAS-SN	tns_2017jet_2017-12-28.48_P200_DBSP_ASAS-SN.txt	tns_2017jet_2017-12-28.48_P200_DBSP_ASAS-SN.fits	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
	1581	2017-12-27 23:15:54	Other / Other	7828	R Leadbeater	R Leadbeater	None	tns_2017jet_2017-12-27_23-15-54_Other_Other.dat	tns_2017jet_2017-12-27_23-15-54_Other_Other.fit	Object			R~150 spectrum obtained using modified ALPY spectrograph at Three Hills Observatory as described here http://www.threehillsobservatory.co.uk/astro/spectroscopy_20.htm
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 R~150 spectrum obtained using modified ALPY spectrograph at Three Hills Observatory as described here http://www.threehillsobservatory.co.uk/astro/spectroscopy_20.htm

Light Curves

Filter

Tel / Inst

Obs-date range

JD Range

Photometry

g-Sloan

ASASSN-4_Leavitt

2017-12-14 09:07:12 - 2017-12-14 09:07:12

2458101.88 - 2458101.88

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
23604	2017-12-14 09:07:12	2458101.88			18.6	ABMag	g-Sloan	ASASSN-4_Leavitt			[Last non detection]

G-Gaia

Gaia_Gaia-photometric

2017-11-10 22:50:52 - 2017-12-20 13:50:52

2458068.4519907 - 2458108.0769907

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
24391	2017-12-20 13:50:52	2458108.0769907	16.81	0.2		ABMag	G-Gaia	Gaia_Gaia-photometric	60	Robot
24390	2017-11-10 22:50:52	2458068.4519907			21.5	ABMag	G-Gaia	Gaia_Gaia-photometric		Robot	[Last non detection]

i-P1

PS1_GPC1

2017-12-11 13:13:26 - 2017-12-11 13:13:26

2458099.0509954 - 2458099.0509954

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
24020	2017-12-11 13:13:26	2458099.0509954	19.29	0.06	20.7	ABMag	i-P1	PS1_GPC1	45	Robot

V-Johnson

ASASSN-1_Brutus

2017-12-26 12:00:00 - 2017-12-26 12:00:00

2458114 - 2458114

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
23605	2017-12-26 12:00:00	2458114	16.8			VegaMag	V-Johnson	ASASSN-1_Brutus

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
16235	2018-01-05 20:43:37	Gaia_Bot1	A. Delgado, D. Harrison, S. Hodgkin et al.	GaiaAlerts	GaiaAlerts	08:37:01.310	+81:41:45.38	2017-12-20 13:50:52.000	16.81	G-Gaia		PSN		Gaia18abf	GaiaAlerts		Confirmed SNIa-91T near extended DSS/PanSTARRS/GALEX source, aka SN2017jet, ASASSN-17rr		N
15911	2017-12-31 22:15:32	PS1_Bot1	K. C. Chambers, M. E. Huber, H. Flewelling et al.	Pan-STARRS	Pan-STARRS	08:37:01.267	+81:41:45.36	2017-12-11 13:13:26.000	19.29	i-P1		PSN		PS17ftr	Pan-STARRS				N
15555	2017-12-27 19:52:20	Krzysztof Stanek	K. Z. Stanek, for the ASAS-SN team	ASAS-SN	ASAS-SN	08:37:00.962	+81:41:42.50	2017-12-26 12:00:00.000	16.8	V-Johnson		PSN	GALEXASC J083701.19+814145.7	ASASSN-17rr	ASAS-SN		In two epochs, blue, unknown redshift host galaxy visible in PS1 images	2017TNSTR1479....1S	N

Classification Reports

ID

Time received (UT)

Sender

Classifier/s

Group

Classification

Redshift

Spectra

Related files

Assoc. Groups

End prop. period

Remarks

ADS Bibcode

1593

2017-12-31 07:10:55

Subhash Bose

S. Bose, P. Chen, S. Dong (KIAA-PKU)

ASAS-SN

SN Ia-91T-like

0.04

1

ASAS-SN

2017TNSCR1561....1B

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
1597	2017-12-28 11:31:12	P200 / DBSP		S. Bose, P. Chen	S. Bose	ASAS-SN	tns_2017jet_2017-12-28.48_P200_DBSP_ASAS-SN.txt	tns_2017jet_2017-12-28.48_P200_DBSP_ASAS-SN.fits	Object

1577

2017-12-28 02:13:38

Robin Leadbeater

Robin Leadbeater

None

SN Ia

0.04

1

2

Classification using SNID ( Blondin, S. & Tonry, J. L. 2007. ApJ, 666, 1024) predicts a type Ia supernova near maximum. Best match is to Ia-norm but there are also matches to Ia-91T-like

2017TNSCR1489....1L

Related files

File	Comments	Last Modified (UT)	Modified By
tns_2017jet_classrep_1577.ps	SNID best fit Ia-norm	2017-12-28 02:13:38	Robin Leadbeater
tns_2017jet_classrep_1577_0.ps	example SNID fit 1a-91T-like	2017-12-28 02:13:38	Robin Leadbeater

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
1581	2017-12-27 23:15:54	Other / Other	7828	R Leadbeater	R Leadbeater	None	tns_2017jet_2017-12-27_23-15-54_Other_Other.dat	tns_2017jet_2017-12-27_23-15-54_Other_Other.fit	Object			R~150 spectrum obtained using modified ALPY spectrograph at Three Hills Observatory as described here http://www.threehillsobservatory.co.uk/astro/spectroscopy_20.htm

Comments

Object coordinates updated

Object coordinates updated according to AT-report 16235 of Group GaiaAlerts
Previous RA, DEC: 08:37:00.962, +81:41:42.50 (129.25401, +81.69514)
Updated RA, DEC: 08:37:01.310, +81:41:45.38 (129.255458, 81.695939)

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Finding Chart

http://www.astronomy.ohio-state.edu/~assassin/followup/asassn-17rr.png

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