2021uvy | Transient Name Server

RA/DEC (2000)

00:29:30.874 +12:06:21.06

7.3786418772 +12.1058488772

Type

SN Ib-pec

Redshift

0.0944

Discovery Report Classification Report

Related AstroNotes: 2021-218, 2021-220, 2025-21

Reporting Group

ZTF

Discovering Data Source

ZTF

Discovery Date

2021-07-08 10:10:33.600

TNS AT

Public

Discovery Mag

20.64

Filter

r-ZTF

Reporter/s

C. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF) collaboration

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

▌

PS1_GPC1_w

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
	20144	2024-10-24 00:00:00	Gemini-S / GMOS-S		Gemini		YSE	tns_2021uvy_2024-10-24_Gemini-S_GMOS-S_YSE.cat		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
	10860	2021-09-09 13:36:56	Keck1 / LRIS	300	Ulf-Christoffer Fremling	Daniel Perley	ZTF	tns_2021uvy_2021-09-09_13-36-56_Keck1_LRIS_ZTF.ascii		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
	10482	2021-08-13 06:36:49	ESO-NTT / EFOSC2-NTT	899	E. Ridley, B. Gompertz, M. Nicholl	L. Galbany	ePESSTO+	tns_2021uvy_2021-08-13_06-36-49_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci	tns_2021uvy_2021-08-13_06-36-49_ESO-NTT_EFOSC2-NTT_ePESSTO+.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
	10477	2021-08-13 02:26:01	LT / SPRAT	1350	LTbot	F. Poidevin and I. Perez-Fournon	SGLF	tns_2021uvy_2021-08-13_02-26-01_LT_SPRAT_SGLF.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

2021-07-08 10:10:34 - 2021-07-08 10:10:34

2459403.924 - 2459403.924

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
232224	2021-07-08 10:10:34	2459403.924	20.64			ABMag	r-ZTF	P48_ZTF-Cam	30	ZTF

g-ZTF

P48_ZTF-Cam

2021-07-08 09:40:19 - 2021-08-03 10:53:46

2459403.903 - 2459429.954

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
232225	2021-08-03 10:53:46	2459429.954	19.46			ABMag	g-ZTF	P48_ZTF-Cam	30	ZTF
232223	2021-07-08 09:40:19	2459403.903			20.42	ABMag	g-ZTF	P48_ZTF-Cam	30	ZTF	[Last non detection]

orange-ATLAS

ATLAS-MLO_ATLAS-01

2021-08-02 15:07:12 - 2021-08-03 13:30:43

2459429.13 - 2459430.063

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
232994	2021-08-03 13:30:43	2459430.063	19.064	0.108	19.74	ABMag	orange-ATLAS	ATLAS-MLO_ATLAS-01	30	Robot
232993	2021-08-02 15:07:12	2459429.13			18.74	ABMag	orange-ATLAS	ATLAS-MLO_ATLAS-01	30	Robot	[Last non detection]

w-P1

PS1_GPC1

2021-08-11 11:39:50 - 2021-08-11 11:39:50

2459437.986 - 2459437.986

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
235409	2021-08-11 11:39:50	2459437.986	18.9	0.01	22	ABMag	w-P1	PS1_GPC1	45	Robot

AT Reports

ID	Time received (UT)	Sender	Reporter/s	Reporting group	Disc. Data Source	RA	DEC	Discovery date (UT)	Discovery Mag.	Filter	AT Type	Internal name	Assoc. Groups	ADS Bibcode	Unreal
120620	2021-08-16 17:00:15	PS1_Bot1	K. C. Chambers, T. de Boer, J. Bulger et al.	Pan-STARRS	Pan-STARRS	00:29:30.874	+12:06:21.06	2021-08-11 11:39:50.400	18.9	w-P1	PSN	PS21iyq	Pan-STARRS		N
119476	2021-08-07 18:06:02	ATLAS_Bot1	J. Tonry, L. Denneau, A. Heinze et al.	ATLAS	ATLAS	00:29:30.879	+12:06:21.19	2021-08-03 13:30:43.200	19.064	orange-ATLAS	PSN	ATLAS21bdyl	ATLAS		N
119097	2021-08-04 07:28:23	ZTF_Bot1	C. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF) collaboration	ZTF	ZTF	00:29:30.875	+12:06:21.01	2021-07-08 10:10:33.600	20.64	r-ZTF	PSN	ZTF21abmlldj	ZTF	2021TNSTR2682....1F	N

Classification Reports

Time received (UT)

Sender

Classifier/s

Group

Classification

Redshift

Spectra

Related files

Assoc. Groups

End prop. period

Remarks

ADS Bibcode

20144

2025-01-12 20:29:41

Wynn Jacobson-Galan

YSE

SN Ib-pec

YSE

2025TNSCR.171....1J

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
20144	2024-10-24 00:00:00	Gemini-S / GMOS-S		Gemini		YSE	tns_2021uvy_2024-10-24_Gemini-S_GMOS-S_YSE.cat		Object

10806

2021-09-13 19:52:04

ZTF_Bot1

M. Chu, A. Dahiwale, C. Fremling(Caltech) on behalf of the Zwicky Transient Facility (ZTF)

ZTF

SN Ib-pec

0.0944

ZTF

2021TNSCR3171....1C

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
10860	2021-09-09 13:36:56	Keck1 / LRIS	300	Ulf-Christoffer Fremling	Daniel Perley	ZTF	tns_2021uvy_2021-09-09_13-36-56_Keck1_LRIS_ZTF.ascii		Object

10442

2021-08-13 15:59:32

ePESSTOplus_Bot1

E. Ridley, B. Gompertz, M. Nicholl, L. Galbany, O. Yaron on behalf of ePESSTO+

ePESSTO+

SN Ib/c

0.1

ePESSTO+

2021TNSCR2795....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
10482	2021-08-13 06:36:49	ESO-NTT / EFOSC2-NTT	899	E. Ridley, B. Gompertz, M. Nicholl	L. Galbany	ePESSTO+	tns_2021uvy_2021-08-13_06-36-49_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci	tns_2021uvy_2021-08-13_06-36-49_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits	Object

10437

2021-08-13 15:26:05

Ismael Perez-Fournon

F. Poidevin, I. Perez-Fournon, C. Jimenez Angel (IAC & ULL), R. Shirley (Univ. of Southampton), R. Marques-Chaves (Univ. of Geneva), S. Geier (GRANTECAN & IAC), Y. Shu (MPA), S. Rodney (Univ. of South Carolina), J. Roberts-Pierel (STScI), A. Bolton (NSF's NOIRLab), S. Chakrabarti, P. Craig, and B. Alamiri (RIT)

SGLF

SLSN-I

0.255

SGLF

SLSN-I at a redshift of about 0.255, likely 8 to 15 days before maximum light. It was selected as a SLSN candidate for LT SPRAT spectroscopy using the ZTF public alerts processed by the ZTF brokers and our SGLF filters and the ALeRCE light curve classification of SLSN. It was also reported as a SLSN candidate by Lunnan et al. (AstroNote 2021-218). The rising time at the epoch of the LT SPRAT observations was 35 days since the first ZTF detection at 2021-07-08 10:11:11. The classification was done using SNID (S. Blondin & J. L. Tonry 2007, ApJ, 666, 1024). The last ZTF detections are g=19.12 +/- 0.08 at 2021-08-10 10:09:50 and r=18.99 +/- 0.07 at 2021-08-10 09:06:28, with absolute magnitudes Mg=-21.5 and Mr =-21.5 at z=0.255 after correction for galactic extinction. SNID shows degeneracy with other SN spectral types which should be discarded by the light curve rising time. Additional observations to confirm the classification and redshift are encouraged. The ZTF light curve is available at the ZTF brokers, e.g.: https://lasair.roe.ac.uk/object/ZTF21abmlldj/, https://alerce.online/object/ZTF21abmlldj, https://antares.noirlab.edu/loci/ANT2021twgbk. Based on observations made with the Liverpool Telescope operated on the island of La Palma by Liverpool John Moores University in the Spanish Observatorio del Roque de los Muchachos of the Instituto de Astrofisica de Canarias with financial support from the UK Science and Technology Facilities Council.

2021TNSCR2800....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
10477	2021-08-13 02:26:01	LT / SPRAT	1350	LTbot	F. Poidevin and I. Perez-Fournon	SGLF	tns_2021uvy_2021-08-13_02-26-01_LT_SPRAT_SGLF.txt		Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 120620 of Group Pan-STARRS1
Previous RA, DEC: 00:29:30.875, +12:06:21.01 (7.3786458, +12.1058367)
Updated RA, DEC: 00:29:30.874, +12:06:21.06 (7.3786418772, 12.1058488772)

SN 2021uvy

Spectra

Light curves

Comments

Object coordinates updated