2018cgj | Transient Name Server

RA/DEC (2000)

12:51:06.740 -47:39:02.16

192.778083 -47.6506

Type

SN II

Redshift

0.012378

Discovery Report Classification Report

Reporting Group

ASAS-SN

Discovering Data Source

ASAS-SN

Discovery Date

2018-06-05 19:55:12.000

TNS AT

Y

Public

Y

Host Name

ESO 268- G 047

Host Redshift

0.012378

Discovery Mag

17.5

Filter

g-Sloan

Reporter/s

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

NED SIMBAD DECaLS PanSTARRS-1 SkyMapper VizieR WISE DSS ADS

Light curves

▌

ASASSN-5_Payne-Gaposchkin_g

▌

ASASSN-3_Paczynski_g

▌

Gaia_Gaia-photometric_G

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
	2279	2018-07-14 23:57:07	LCO-duPont / WFCCD		L. Khlat (ENS-Lyon), J. L. Prieto (UDP)		ASAS-SN	tns_2018cgj_2458314.4979977_LCO-duPont_WFCCD_ASAS-SN.txt	tns_2018cgj_2458314.4979977_LCO-duPont_WFCCD_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

Light Curves

Filter

Tel / Inst

Obs-date range

JD Range

Photometry

g-Sloan

ASASSN-5_Payne-Gaposchkin

2018-06-05 19:55:12 - 2018-06-05 19:55:12

2458275.33 - 2458275.33

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
29582	2018-06-05 19:55:12	2458275.33	17.5			ABMag	g-Sloan	ASASSN-5_Payne-Gaposchkin

g-Sloan

ASASSN-3_Paczynski

2018-06-02 05:16:48 - 2018-06-02 05:16:48

2458271.72 - 2458271.72

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
29581	2018-06-02 05:16:48	2458271.72			17.4	ABMag	g-Sloan	ASASSN-3_Paczynski			[Last non detection]

G-Gaia

Gaia_Gaia-photometric

2018-06-01 15:15:50 - 2018-06-01 17:02:24

2458271.1359954 - 2458271.21

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
29599	2018-06-01 17:02:24	2458271.21	17.82	0.2		ABMag	G-Gaia	Gaia_Gaia-photometric	60	Robot
29598	2018-06-01 15:15:50	2458271.1359954			21.5	ABMag	G-Gaia	Gaia_Gaia-photometric		Robot	[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
19154	2018-06-06 23:57:04	Gaia_Bot1	A. Delgado, D. Harrison, S. Hodgkin et al.	GaiaAlerts	GaiaAlerts	12:51:06.740	-47:39:02.16	2018-06-01 17:02:24.000	17.82	G-Gaia		PSN		Gaia18bkf	GaiaAlerts		candidate SN near galaxy ESO 268-47		N
19146	2018-06-06 12:39:17	Krzysztof Stanek	J. Brimacombe, K. Z. Stanek, for the ASAS-SN team	ASAS-SN	ASAS-SN	12:51:06.718	-47:39:00.68	2018-06-05 19:55:12.000	17.5	g-Sloan		PSN	ESO 268- G 047	ASASSN-18lv	ASAS-SN		Confirmed in follow-up imaging	2018TNSTR.763....1B	N

Classification Reports

ID

Time received (UT)

Sender

Classifier/s

Group

Classification

Redshift

Spectra

Related files

Assoc. Groups

End prop. period

Remarks

ADS Bibcode

2272

2018-07-15 08:30:08

Jose Prieto

L. Khlat (ENS-Lyon), J. L. Prieto (UDP), S. Dong (KIAA-PKU)

ASAS-SN

SN II

0.012378

1

ASAS-SN

We obtained an optical low-resolution spectrum of supernovae candidates on UT 2018 July 15 with WFCCD mounted on the du Pont 2.5m telescope at Las Campanas Observatory. The spectrum of ASASSN-18lv/AT2018cgj is that of a Type IIP supernova after maximum light. SNID (Blondin & Tonry 2007) gives a best fit age of +45.0 days after maximum light and z=0.012 as the redshift, consistent with the host galaxy redshift.

2018TNSCR.988....1K

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
2279	2018-07-14 23:57:07	LCO-duPont / WFCCD		L. Khlat (ENS-Lyon), J. L. Prieto (UDP)		ASAS-SN	tns_2018cgj_2458314.4979977_LCO-duPont_WFCCD_ASAS-SN.txt	tns_2018cgj_2458314.4979977_LCO-duPont_WFCCD_ASAS-SN.fits	Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 19154 of Group GaiaAlerts
Previous RA, DEC: 12:51:06.718, -47:39:00.68 (192.77799, -47.65019)
Updated RA, DEC: 12:51:06.740, -47:39:02.16 (192.778083, -47.6506)

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Finding Chart

http://www.astronomy.ohio-state.edu/~assassin/followup/asassn-18lv.png

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