2018bej | Transient Name Server

RA/DEC (2000)

06:26:20.720 -69:45:46.01

96.586333 -69.762781

Type

Nova

Redshift

0.000927

Discovery Report Classification Report

Reporting Group

ASAS-SN

Discovering Data Source

ASAS-SN

Discovery Date

2018-05-03 23:02:24.000

TNS AT

Y

Public

Y

Host Name

LMC

Discovery Mag

12.1

Filter

g-Sloan

Reporter/s

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

NED SIMBAD DECaLS PanSTARRS-1 SkyMapper VizieR WISE DSS ADS

Light curves

▌

ASASSN-3_Paczynski_g

▌

OGLE-1.3m_OGLEIV-Cam_I

▌

Gaia_Gaia-photometric_G

▌

ASASSN-2_Cassius_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
	2003	2018-05-05 00:43:12	Other / Other		D. Fernandez (PUC), J. L. Prieto (UDP)		None	tns_2018bej_2458243.53_Other_Other.txt		Object			The spectrum was normalized by a smooth continuum because we did not obtain flux calibration. We note that the wavelength calibration has some systematic errors in the blue side of the spectrum.
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 The spectrum was normalized by a smooth continuum because we did not obtain flux calibration. We note that the wavelength calibration has some systematic errors in the blue side of the spectrum.

Light Curves

Filter

Tel / Inst

Obs-date range

JD Range

Photometry

g-Sloan

ASASSN-3_Paczynski

2018-05-03 23:02:24 - 2018-05-03 23:02:24

2458242.46 - 2458242.46

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
27629	2018-05-03 23:02:24	2458242.46	12.1			ABMag	g-Sloan	ASASSN-3_Paczynski

I-Cousins

OGLE-1.3m_OGLEIV-Cam

2018-04-23 00:19:42 - 2018-09-08 09:41:27

2458231.51369 - 2458369.90379

3

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
35470	2018-09-08 09:41:27	2458369.90379	16.982	0.006	22	VegaMag	I-Cousins	OGLE-1.3m_OGLEIV-Cam	150	OGLE-IV
35471	2018-09-01 09:39:10	2458362.90221	16.851	0.008	22	VegaMag	I-Cousins	OGLE-1.3m_OGLEIV-Cam	150	OGLE-IV
35469	2018-04-23 00:19:42	2458231.51369			22	VegaMag	I-Cousins	OGLE-1.3m_OGLEIV-Cam	150	OGLE-IV	[Last non detection]

G-Gaia

Gaia_Gaia-photometric

2018-04-15 09:12:57 - 2018-05-15 10:43:40

2458223.8839931 - 2458253.9469907

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
30487	2018-05-15 10:43:40	2458253.9469907	13.01	0.2		ABMag	G-Gaia	Gaia_Gaia-photometric	60	Robot
30486	2018-04-15 09:12:57	2458223.8839931			21.5	ABMag	G-Gaia	Gaia_Gaia-photometric		Robot	[Last non detection]

V-Johnson

ASASSN-2_Cassius

2018-04-27 00:43:12 - 2018-04-27 00:43:12

2458235.53 - 2458235.53

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
27628	2018-04-27 00:43:12	2458235.53			16.8	VegaMag	V-Johnson	ASASSN-2_Cassius			[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
22486	2018-09-10 05:33:09	Lukasz Wyrzykowski	Lukasz Wyrzykowski,Mariusz Gromadzki et al.	OGLE	OGLE	06:26:20.720	-69:45:46.10	2018-09-08 09:41:27.000	16.982	I-Cousins		PSN	OGLE-GAL-LMC611.20-1311.697-2400.254	LMC611.20.1308.23.2382.09	OGLE		bright transient, possibly associated with a very faint galaxy-like object 5 arcsec away, but could be hostless or a CV.		N
19629	2018-06-20 21:50:30	Gaia_Bot1	A. Delgado,D. Harrison,S. Hodgkin et al.	GaiaAlerts	GaiaAlerts	06:26:20.720	-69:45:46.01	2018-05-15 10:43:40.000	13.01	G-Gaia		PSN		Gaia18boy	GaiaAlerts		confirmed nova, aka ASASSN-18jj		N
18139	2018-05-04 14:59:01	Krzysztof Stanek	K. Z. Stanek,for the ASAS-SN team et al.	ASAS-SN	ASAS-SN	06:26:20.755	-69:45:46.30	2018-05-03 23:02:24.000	12.1	g-Sloan		PSN	LMC	ASASSN-18jj	ASAS-SN		In the vicinity of the LMC, so most likely an LMC nova, but no Vizier match, needs spectroscopy	2018TNSTR.576....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

1998

2018-05-10 16:31:24

Jose Prieto

D. Fernandez (PUC), J. L. Prieto, C. Bruna, J. Caroca, F. Castillo, R. Escobillana, A. Espinoza, B. Gomez, S. Gonzalez, J. Ibarra, H. Labraña, A. Lois, M. Marchant, N. Reyes, D. Tobar, M. Valdes, M. Wagner (UDP)

None

Nova

0.000927

1

We obtained a low-resolution optical spectrum of ASASSN-18jj/AT2018bej on UT 2018 May 5.0 with a star analyzer 100 l/mm grating on the Meade 40cm telescope at the PUC observatory of Santa Martina, in Santiago, Chile. We obtained 20x45 sec exposures on source. The spectrum shows strong Balmer lines in emission, as well as multiple Fe II and O I features, consistent with a nova in the LMC and with the spectrum reported in ATel #11610 by Chomiuk et al. (2018).

2018TNSCR.612....1F

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
2003	2018-05-05 00:43:12	Other / Other		D. Fernandez (PUC), J. L. Prieto (UDP)		None	tns_2018bej_2458243.53_Other_Other.txt		Object			The spectrum was normalized by a smooth continuum because we did not obtain flux calibration. We note that the wavelength calibration has some systematic errors in the blue side of the spectrum.

Comments

Object coordinates updated

Object coordinates updated according to AT-report 19629 of Group GaiaAlerts
Previous RA, DEC: 06:26:20.755, -69:45:46.30 (96.58648, -69.76286)
Updated RA, DEC: 06:26:20.720, -69:45:46.01 (96.586333, -69.762781)

Log in or register to post comments

Log in or register to post comments