2018hco | Transient Name Server

RA/DEC (2000)

01:07:33.635 +23:28:34.28

16.8901468 +23.4761884

Type

TDE

Redshift

0.09

Discovery Report Classification Report

Reporting Group

ATLAS

Discovering Data Source

ATLAS

Discovery Date

2018-10-04 12:28:48.000

TNS AT

Y

Public

Y

Comments

[Prefix updated to TDE by admin on 2025-01-26]

Discovery Mag

18.823

Filter

cyan-ATLAS

Reporter/s

J. Tonry, L. Denneau, A. Heinze, H. Weiland, H. Flewelling (IfA, University of Hawaii), B. Stalder (LSST), A. Rest (STScI), C. Stubbs (Harvard University), K. W. Smith, S. J. Smartt, D. R. Young, K. Maguire, S. Prentice, O. McBrien, D. O'Neill, P. Clark, M. Magee, M. Fulton (Queen's University Belfast), D. E. Wright (University of Minnesota)

NED SIMBAD DECaLS PanSTARRS-1 SkyMapper VizieR WISE DSS ADS

Light curves

▌

P48_ZTF-Cam_r

▌

P48_ZTF-Cam_g

▌

ATLAS-MLO_ATLAS-01_orange

▌

ATLAS-HKO_ATLAS-02_cyan

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
	3234	2018-12-05 01:13:29	NOT / ALFOSC	2400	M.B. Stone (UTU), M. Hanski (Luostarivuoren Lyseon Lukio), M. Taskula, K. Räsänen, R. Meller, V. Vepsäläinen (Keravan lukio)	T. M Reynolds (Univ. of Turku)	None	tns_2018hco_2018-12-05_01-13-29_NOT_ALFOSC.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

r-ZTF

P48_ZTF-Cam

2018-09-24 06:38:00 - 2018-11-10 06:27:10

2458385.7764 - 2458432.7688657

13

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
40711	2018-11-10 06:27:10	2458432.7688657	18.4475	0.0676178	20.1591	ABMag	r-ZTF	P48_ZTF-Cam	30
40710	2018-11-07 06:35:28	2458429.7746412	18.5181	0.0796557	20.6323	ABMag	r-ZTF	P48_ZTF-Cam	30
40156	2018-11-07 06:35:28	2458429.7746412	18.5181	0.0796557	20.6323	ABMag	r-ZTF	P48_ZTF-Cam	30
39628	2018-11-07 06:35:28	2458429.7746412	18.5181	0.0796557	20.6323	ABMag	r-ZTF	P48_ZTF-Cam	30
39629	2018-11-04 06:06:47	2458426.7547222	18.4323	0.0782759	20.3701	ABMag	r-ZTF	P48_ZTF-Cam	30
40708	2018-11-04 06:06:47	2458426.7547222	18.4323	0.0782759	20.3701	ABMag	r-ZTF	P48_ZTF-Cam	30
40154	2018-11-04 06:06:47	2458426.7547222	18.4323	0.0782759	20.3701	ABMag	r-ZTF	P48_ZTF-Cam	30
39216	2018-11-04 06:06:47	2458426.7547222	18.4323	0.0782759	20.3701	ABMag	r-ZTF	P48_ZTF-Cam	30
38382	2018-11-01 07:23:31	2458423.8079977	18.36			ABMag	r-ZTF	P48_ZTF-Cam	30	ZTF
39627	2018-09-24 06:38:00	2458385.7764			19.68	ABMag	r-ZTF	P48_ZTF-Cam	30		[Last non detection]
40153	2018-09-24 06:38:00	2458385.7764			19.68	ABMag	r-ZTF	P48_ZTF-Cam	30		[Last non detection]
39215	2018-09-24 06:38:00	2458385.7764			19.68	ABMag	r-ZTF	P48_ZTF-Cam	30		[Last non detection]
40707	2018-09-24 06:38:00	2458385.7764			19.68	ABMag	r-ZTF	P48_ZTF-Cam	30		[Last non detection]

g-ZTF

P48_ZTF-Cam

2018-09-17 07:56:38 - 2018-11-04 07:48:38

2458378.8309954 - 2458426.8254514

6

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
39217	2018-11-04 07:48:38	2458426.8254514	18.294	0.0778415	20.0828	ABMag	g-ZTF	P48_ZTF-Cam	30
39630	2018-11-04 07:48:38	2458426.8254514	18.294	0.0778415	20.0828	ABMag	g-ZTF	P48_ZTF-Cam	30
40155	2018-11-04 07:48:38	2458426.8254514	18.294	0.0778415	20.0828	ABMag	g-ZTF	P48_ZTF-Cam	30
40709	2018-11-04 07:48:38	2458426.8254514	18.294	0.0778415	20.0828	ABMag	g-ZTF	P48_ZTF-Cam	30
38381	2018-09-18 08:52:48	2458379.87	20.76			ABMag	g-ZTF	P48_ZTF-Cam	30	ZTF
38380	2018-09-17 07:56:38	2458378.8309954			20.94	ABMag	g-ZTF	P48_ZTF-Cam	30	ZTF	[Last non detection]

orange-ATLAS

ATLAS-MLO_ATLAS-01

2018-10-02 12:37:26 - 2018-10-02 12:37:26

2458394.0259954 - 2458394.0259954

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
37201	2018-10-02 12:37:26	2458394.0259954			19.09	ABMag	orange-ATLAS	ATLAS-MLO_ATLAS-01	30	Robot	[Last non detection]

cyan-ATLAS

ATLAS-HKO_ATLAS-02

2018-10-04 12:28:48 - 2018-10-04 12:28:48

2458396.02 - 2458396.02

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
37202	2018-10-04 12:28:48	2458396.02	18.823	0.127	19.56	ABMag	cyan-ATLAS	ATLAS-HKO_ATLAS-02	30	Robot

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
24666	2018-11-10 14:20:03	ZTF_AMPEL_NEW	J. Nordin, V. Brinnel, M. Giomi (HU Berlin) et al.	ZTF	ZTF	01:07:33.635	+23:28:34.28	2018-10-06 08:37:53.000	18.4323	r-ZTF		PSN		ZTF18abxftqm	ZTF				N
24521	2018-11-09 13:37:57	ZTF_AMPEL_NEW	J. Nordin, V. Brinnel, M. Giomi (HU Berlin) et al.	ZTF	ZTF	01:07:33.635	+23:28:34.28	2018-10-06 08:37:53.000	18.4323	r-ZTF		PSN		ZTF18abxftqm	ZTF				N
24363	2018-11-07 15:21:17	ZTF_AMPEL_NEW	J. Nordin, V. Brinnel (HU Berlin), A. Gal-Yam et al.	ZTF	ZTF	01:07:33.636	+23:28:34.25	2018-10-06 08:37:53.000	18.5181	r-ZTF		PSN		ZTF18abxftqm	ZTF				N
24248	2018-11-07 14:54:26	ZTF_AMPEL_NEW	J. Nordin, V. Brinnel (HU Berlin), A. Gal-Yam et al.	ZTF	ZTF	01:07:33.639	+23:28:34.24	2018-10-06 08:37:53.000	18.4323	r-ZTF		PSN		ZTF18abxftqm	ZTF				N
23930	2018-11-04 05:15:46	ZTF_Bot1	C. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF) collaboration	ZTF	ZTF	01:07:33.614	+23:28:34.39	2018-09-18 08:52:48.000	20.76	g-ZTF		PSN		ZTF18abxftqm	ZTF				N
23352	2018-10-05 22:41:55	ATLAS_Bot1	J. Tonry, L. Denneau, A. Heinze et al.	ATLAS	ATLAS	01:07:33.611	+23:28:34.68	2018-10-04 12:28:48.000	18.823	cyan-ATLAS		PSN		ATLAS18way	ATLAS			2018TNSTR1509....1T	N

Classification Reports

ID

Time received (UT)

Sender

Classifier/s

Group

Classification

Redshift

Spectra

Related files

Assoc. Groups

End prop. period

Remarks

ADS Bibcode

3226

2018-12-10 12:09:19

Thomas Reynolds

Thomas Reynolds

None

TDE

0.09

1

NUTS2

The object was previously classified in ATel #12263 by S. Van Velzen et al. We confirm their classification of the object as a TDE on the basis of a strong blue continuum and broad emission lines of Halpha and HeI (5876) as described in ATel #12263, as well as a weak emission line we identify as HeII (4685).

2018TNSCR1902....1R

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
3234	2018-12-05 01:13:29	NOT / ALFOSC	2400	M.B. Stone (UTU), M. Hanski (Luostarivuoren Lyseon Lukio), M. Taskula, K. Räsänen, R. Meller, V. Vepsäläinen (Keravan lukio)	T. M Reynolds (Univ. of Turku)	None	tns_2018hco_2018-12-05_01-13-29_NOT_ALFOSC.txt		Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 24521 of Group ZTF
Previous RA, DEC: 01:07:33.611, +23:28:34.68 (16.8900441667, +23.4762991667)
Updated RA, DEC: 01:07:33.635, +23:28:34.28 (16.8901468, 23.4761884)

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