2017jgm | Transient Name Server

RA/DEC (2000)

11:02:38.640 -07:31:11.21

165.661 -7.519781

Type

SN Ia

Redshift

Discovery Report Classification Report

Reporting Group

ASAS-SN

Discovering Data Source

ASAS-SN

Discovery Date

2017-12-29 13:55:12.000

TNS AT

Y

Public

Y

Host Name

MCG -01-28-022

Host Redshift

0.029787

Comments

[Object redshift updated according to host-redshift by admin]

Discovery Mag

16.5

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

▌

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
	1645	2018-01-13 07:49:46	LCO-duPont / WFCCD		J. Rich		ASAS-SN	tns_2017jgm_2458131.82622686_LCO-duPont_WFCCD_ASAS-SN.txt	tns_2017jgm_2458131.82622686_LCO-duPont_WFCCD_ASAS-SN.fits	Object
Binning factor: (rounded to nearest integer >1) Mouse hovers at WL: 0 (rest), ▌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-Sloan

ASASSN-4_Leavitt

2017-12-14 09:50:24 - 2017-12-14 09:50:24

2458101.91 - 2458101.91

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
23697	2017-12-14 09:50:24	2458101.91			18	ABMag	g-Sloan	ASASSN-4_Leavitt			[Last non detection]

G-Gaia

Gaia_Gaia-photometric

2017-12-01 15:43:12 - 2018-01-01 15:23:02

2458089.155 - 2458120.1409954

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
24895	2018-01-01 15:23:02	2458120.1409954	16.4	0.2		ABMag	G-Gaia	Gaia_Gaia-photometric	60	Robot
24894	2017-12-01 15:43:12	2458089.155			21.5	ABMag	G-Gaia	Gaia_Gaia-photometric		Robot	[Last non detection]

V-Johnson

ASASSN-1_Brutus

2017-12-29 13:55:12 - 2017-12-29 13:55:12

2458117.08 - 2458117.08

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
23698	2017-12-29 13:55:12	2458117.08	16.5			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
16574	2018-01-21 12:37:21	Gaia_Bot1	A. Delgado, D. Harrison, S. Hodgkin et al.	GaiaAlerts	GaiaAlerts	11:02:38.640	-07:31:11.21	2018-01-01 15:23:02.000	16.4	G-Gaia		PSN		Gaia18afi	GaiaAlerts		confirmed SN Ia, aka SN2017jgm		N
15607	2017-12-29 20:31:01	Krzysztof Stanek	K. Z. Stanek, for the ASAS-SN team	ASAS-SN	ASAS-SN	11:02:38.530	-07:31:11.50	2017-12-29 13:55:12.000	16.5	V-Johnson		PSN	MCG -01-28-022	ASASSN-17rs	ASAS-SN		In several epochs, on the rise	2017TNSTR1490....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

1640

2018-01-15 20:35:31

Jose Prieto

J. L. Prieto (UDP), J. Rich, T. Holoien (Carnegie)

ASAS-SN

SN Ia

1

ASAS-SN

We obtained an optical low-resolution spectrum of ASASSN-17rs/AT2017jgm on UT 2018 Jan 13.3 with WFCCD mounted on the du Pont 2.5m telescope at Las Campanas Observatory. The spectrum of ASASSN-17rs is that of a normal Type Ia supernova after maximum light. SNID (Blondin & Tonry 2017) gives a best fit age of +16 days after maximum light.

2018TNSCR..65....1P

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
1645	2018-01-13 07:49:46	LCO-duPont / WFCCD		J. Rich		ASAS-SN	tns_2017jgm_2458131.82622686_LCO-duPont_WFCCD_ASAS-SN.txt	tns_2017jgm_2458131.82622686_LCO-duPont_WFCCD_ASAS-SN.fits	Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 16574 of Group GaiaAlerts
Previous RA, DEC: 11:02:38.530, -07:31:11.50 (165.66054, -7.51986)
Updated RA, DEC: 11:02:38.640, -07:31:11.21 (165.661, -7.519781)

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Finding Chart

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

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