2023czd | Transient Name Server

RA/DEC (2000)

13:02:35.204 +27:26:21.58

195.646681296 +27.4393287073

Type

SN Ia

Redshift

0.018

Discovery Report Classification Report

Related AstroNotes: 2023-56

Reporting Group

ATLAS

Discovering Data Source

ATLAS

Discovery Date

2023-03-12 23:32:28.032

TNS AT

Public

Discovery Mag

17.793

Filter

orange-ATLAS

Reporter/s

J. Tonry, L. Denneau, H. Weiland, A. Lawrence, R. Siverd (IfA, University of Hawaii), N. Erasmus, W. Koorts (South African Astronomical Observatory), J. Anderson (ESO), A. Jordan, V. Suc (UAI, Obstech), K. W. Smith, S. Srivastav, D. R. Young, S. J. Smartt, J. Gillanders, M. Fulton, M. McCollum, T. Moore, J. Weston (Queen's University Belfast), L. Shingles (GSI/QUB), A. Rest (STScI), T.-W. Chen (TUM/MPA), M. Nicholl (Birmingham), C. Stubbs (Harvard), J. Sommer (LMU/QUB), L. Rhodes, A. Andersson (Oxford)

NED SIMBAD DECaLS PanSTARRS-1 SkyMapper VizieR WISE DSS ADS

Light curves

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	Remarks
	14597	2023-03-15 21:22:00	Other / Other	5400	Claudio Balcon	Claudio Balcon	None	tns_2023czd_2023-03-15_21-22-00_Other_Other.dat	tns_2023czd_2023-03-15_21-22-00_Other_Other.fit	Object	We obtained the low-resolution spectrum R~100 using the FOSC-ES32 spectrograph attached to a 0.2m telescope, in the course of Italian Supernovae Search Project.
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 We obtained the low-resolution spectrum R~100 using the FOSC-ES32 spectrograph attached to a 0.2m telescope, in the course of Italian Supernovae Search Project.
	14598	2023-03-15 16:31:46	FTS / FLOYDS-S	2700	Las Cumbres Observatory		Global SN Project	tns_2023czd_2023-03-15_16-31-46_FTS_FLOYDS-S_Global_SN_Project.ascii	tns_2023czd_2023-03-15_16-31-46_FTS_FLOYDS-S_Global_SN_Project.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

orange-ATLAS

ATLAS-STH_ATLAS-03

2023-03-12 23:32:28 - 2023-03-12 23:32:28

2460016.48088 - 2460016.48088

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
331477	2023-03-12 23:32:28	2460016.48088	17.793	0.11	18.86	ABMag	orange-ATLAS	ATLAS-STH_ATLAS-03	30	Robot

r-ZTF

P48_ZTF-Cam

2023-02-21 09:48:57 - 2023-03-13 09:24:18

2459996.9089931 - 2460016.891875

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
331553	2023-03-13 09:24:18	2460016.891875	17.5631	0.0624106	19.3356	ABMag	r-ZTF	P48_ZTF-Cam	30	Robot	Data provided by ZTF
331551	2023-02-21 09:48:57	2459996.9089931			20.0454	ABMag	r-ZTF	P48_ZTF-Cam	30	Robot	[Last non detection] Data provided by ZTF

g-ZTF

P48_ZTF-Cam

2023-03-13 07:52:20 - 2023-03-13 07:52:20

2460016.8280093 - 2460016.8280093

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
331552	2023-03-13 07:52:20	2460016.8280093	17.4872	0.122983	18.2733	ABMag	g-ZTF	P48_ZTF-Cam	30	Robot	Data provided by ZTF

orange-ATLAS

ATLAS-HKO_ATLAS-02

2023-03-11 11:12:18 - 2023-03-11 11:12:18

2460014.96687 - 2460014.96687

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
331476	2023-03-11 11:12:18	2460014.96687			17.1	ABMag	orange-ATLAS	ATLAS-HKO_ATLAS-02	30	Robot	[Last non detection]

g-P1

PS1_GPC1

2023-04-29 09:50:59 - 2023-04-29 09:50:59

2460063.91041 - 2460063.91041

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
340600	2023-04-29 09:50:59	2460063.91041	17.81	0.05	21	ABMag	g-P1	PS1_GPC1	27	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	Host name	Internal name	Assoc. Groups	Remarks	ADS Bibcode	Unreal
176560	2023-05-01 17:26:37	YSE_Bot1	D. O. Jones (UC Santa Cruz), K. D. French (Carnegie, Illinois), A. Agnello et al.	YSE	Pan-STARRS	13:02:35.204	+27:26:21.58	2023-04-29 09:50:59.424	17.81	g-P1	PSN		PS23cqm	Pan-STARRS, YSE			N
172086	2023-03-13 21:47:27	ALeRCE	A. Munoz-Arancibia, F. Forster, F.E. Bauer et al.	ALeRCE	ZTF	13:02:35.213	+27:26:21.77	2023-03-13 07:52:20.004	17.4872	g-ZTF	PSN	LEDA 83768	ZTF18aauuzmf	ALeRCE	Early SN candidate (g-rise > 0.06+-0.01 mag/day) classified using ALeRCE's stamp classifier (Carrasco-Davis et al. 2021) and the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF18aauuzmf		N
172047	2023-03-13 14:20:28	ATLAS_Bot1	J. Tonry, L. Denneau, H. Weiland et al.	ATLAS	ATLAS	13:02:35.219	+27:26:21.62	2023-03-12 23:32:28.032	17.793	orange-ATLAS	PSN		ATLAS23dpx	ATLAS		2023TNSTR.523....1T	N

Classification Reports

Time received (UT)

Sender

Classifier/s

Group

Classification

Redshift

Spectra

Related files

Assoc. Groups

End prop. period

Remarks

ADS Bibcode

14524

2023-03-15 22:26:47

Craig Pellegrino

Craig Pellegrino (UCSB/LCO), Iair Arcavi(TAU), Joseph Farah, D. Andrew Howell, Curtis McCully, Megan Newsome, Estefania Padilla Gonzalez, Giacomo Terreran

Global SN Project

SN Ia

0.018

Global SN Project

Using Superfit (Howell et al. 2005, ApJ, 634, 1190) and SNID (Blondin & Tonry 2007, ApJ, 666, 1024) we find best fits to young SNe Ia, including SN 2002er about a week before maximum. The best-fit redshift is well-matched by the host galaxy redshift (z=0.018059; 2016ApJ...819...63R; value from NED). Assuming this redshift we measure a velocity of 12,500 km/s for the Si II 6355 line, consistent with a young SN Ia before maximum light.

2023TNSCR.542....1P

Related files

File	Comments	Last Modified (UT)	Modified By
tns_2023czd_classrep_14524_Global_SN_Project.ps		2023-03-15 22:26:47	Craig Pellegrino

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
14598	2023-03-15 16:31:46	FTS / FLOYDS-S	2700	Las Cumbres Observatory		Global SN Project	tns_2023czd_2023-03-15_16-31-46_FTS_FLOYDS-S_Global_SN_Project.ascii	tns_2023czd_2023-03-15_16-31-46_FTS_FLOYDS-S_Global_SN_Project.fits	Object

14523

2023-03-15 22:23:42

Claudio Balcon

Claudio Balcon (Belluno A.O. ISSP)

None

SN Ia

0.018059

GELATO (Harutyunyan et al., 2008, A&A, 488, 383) and DASH (Muthukrishna et al., 2019, ApJ, 885, 85) suggest that this spectrum resembles that of type la supernova about ten days before maximum light at the redshift of the host galaxy, value from NED.

2023TNSCR.543....1B

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
14597	2023-03-15 21:22:00	Other / Other	5400	Claudio Balcon	Claudio Balcon	None	tns_2023czd_2023-03-15_21-22-00_Other_Other.dat	tns_2023czd_2023-03-15_21-22-00_Other_Other.fit	Object			We obtained the low-resolution spectrum R~100 using the FOSC-ES32 spectrograph attached to a 0.2m telescope, in the course of Italian Supernovae Search Project.

Comments

Object coordinates updated

Object coordinates updated according to AT-report 176560 of Group Pan-STARRS
Previous RA, DEC: 13:02:35.213, +27:26:21.77 (195.6467215, +27.4393805)
Updated RA, DEC: 13:02:35.204, +27:26:21.58 (195.646681296, 27.4393287073)

Object coordinates updated

Object coordinates updated according to AT-report 172086 of Group ZTF
Previous RA, DEC: 13:02:35.219, +27:26:21.62 (195.64674375, +27.4393375)
Updated RA, DEC: 13:02:35.213, +27:26:21.77 (195.6467215, 27.4393805)

SN 2023czd

Spectra

Light curves

Comments

Object coordinates updated

Object coordinates updated