2024xuo | Transient Name Server

RA/DEC (2000)

10:08:49.736 -67:02:50.70

152.207233 -67.047417

Type

SN IIn

Redshift

0.0047

Discovery Report Classification Report

Related AstroNotes: 2024-291, 2024-297, 2025-24

Reporting Group

ATLAS

Discovering Data Source

ATLAS

Discovery Date

2024-10-11 02:22:10.272

TNS AT

Y

Public

Y

Discovery Mag

17.46

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), A. Jordan, V. Suc (UAI, Obstech), S. J. Smartt, K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, M. Fulton, M. McCollum, T. Moore, J. Weston, X. Sheng, C. R. Angus, A. Wilson (QUB), A. Aamer (QUB/Birmingham), P. Ramsden (Birmingham), L. Shingles (GSI/QUB), S. Srivastav, J. Gillanders, H. Stevance (Oxford), L. Rhodes (TSI/McGill), A. Rest (STScI), T.-W. Chen (NCU), C. Stubbs (Harvard), J. Sommer (LMU/QUB), B. P. Schmidt (ANU)

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	Assoc. Groups	End prop. period	Remarks
	20181	2025-01-15 20:54:32	Lesedi / Mookodi	900	Simon de Wet	Simon de Wet	BlackGEM	tns_2024xuo_2025-01-15_20-54-32_Lesedi_Mookodi_BlackGEM.csv		Object			The spectrum was obtained with the fully-robotic SAAO 1-m Lesedi telescope equipped with the Mookodi low-resolution (R~172) spectrograph and imager. We acknowledge the SAAO IO team including S. Potter, N. Erasmus, C. van Gend, S. Chandra, H. Worters, M. Hlakola and R. Julie for their role in these making these observations possible.
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 obtained with the fully-robotic SAAO 1-m Lesedi telescope equipped with the Mookodi low-resolution (R~172) spectrograph and imager. We acknowledge the SAAO IO team including S. Potter, N. Erasmus, C. van Gend, S. Chandra, H. Worters, M. Hlakola and R. Julie for their role in these making these observations possible.
	18478	2024-10-14 08:18:00	ESO-NTT / EFOSC2-NTT	299	T. Kravtsov, C. Humina	N. Pyykkinen, N. Koivisto, C. Vassallo	ePESSTO+	tns_2024xuo_2024-10-14_08-18-00_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci	tns_2024xuo_2024-10-14_08-18-00_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

Light Curves

Filter

Tel / Inst

Obs-date range

JD Range

Photometry

L-GOTO

GOTO-S_GOTO-3

2024-10-06 18:30:42 - 2024-10-22 17:23:14

2460590.271323 - 2460606.224468

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
441270	2024-10-22 17:23:14	2460606.224468	18.27	0.08		ABMag	L-GOTO	GOTO-S_GOTO-3	180
441269	2024-10-06 18:30:42	2460590.271323			19.5	ABMag	L-GOTO	GOTO-S_GOTO-3	180		[Last non detection]

orange-ATLAS

ATLAS-CHL_ATLAS-04

2024-09-07 09:55:05 - 2024-09-07 09:55:05

2460560.91325 - 2460560.91325

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
439258	2024-09-07 09:55:05	2460560.91325			17.74	ABMag	orange-ATLAS	ATLAS-CHL_ATLAS-04	30	Robot	[Last non detection]

orange-ATLAS

ATLAS-STH_ATLAS-03

2024-10-11 02:22:10 - 2024-10-11 02:22:10

2460594.59873 - 2460594.59873

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
439259	2024-10-11 02:22:10	2460594.59873	17.46	0.164	17.79	ABMag	orange-ATLAS	ATLAS-STH_ATLAS-03	30	Robot

BG-g-BlackGem

BG4_BlackGEM-Cam4

2024-10-22 08:53:29 - 2024-10-22 08:53:29

2460605.8704745 - 2460605.8704745

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
441314	2024-10-22 08:53:29	2460605.8704745	18.59	0.13	19.6	ABMag	BG-g-BlackGem	BG4_BlackGEM-Cam4	60	robotic

BG-g-BlackGem

ML1_MeerLICHT-Cam

2021-04-28 04:49:30 - 2021-04-28 04:49:30

2459332.7010417 - 2459332.7010417

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
441313	2021-04-28 04:49:30	2459332.7010417			19.56	ABMag	BG-g-BlackGem	ML1_MeerLICHT-Cam	60	robotic	[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

Bibcode

Unreal

Auto classification

229925

2024-10-22 21:11:02

BlackGEM_Bot1

N. Blagorodnova,H. Tranin,F. Stoppa et al.

BlackGEM

BlackGEM

10:08:49.736

-67:02:50.70

2024-10-22 08:53:29.000

18.59

BG-g-BlackGem

1

PSN

BGEM J100849.73-670250.6

BlackGEM

N

Related files

File	Comments	Last Modified (UT)	Modified By
tns_2024xuo_atrep_229925_BlackGEM.pdf	Finding Chart	2024-10-22 21:11:04	BlackGEM_Bot1

229891

2024-10-22 18:58:54

GOTO_bot

G. Ramsay,K. Ackley,M. Dyer et al.

GOTO

GOTO

10:08:49.881

-67:02:50.63

2024-10-22 17:23:14.208

18.27

L-GOTO

Other

GOTO24hjz

GOTO

N

228809

2024-10-11 14:17:17

ATLAS_Bot1

J. Tonry,L. Denneau,H. Weiland et al.

ATLAS

ATLAS

10:08:49.835

-67:02:51.04

2024-10-11 02:22:10.272

17.46

orange-ATLAS

PSN

ATLAS24pgn

ATLAS

2024TNSTR3952....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

20181

2025-01-16 15:24:45

Simon de Wet

Nadejda Blagorodnova (ICCUB), Simon deWet (DTU), Hugo Tranin (ICCUB), Giorgos Leloudas (DTU), Erez Zimmerman (Weizmann), Gavin Ramsay (Armagh Observatory), Paul Groot (Radboud/UCT/SAAO), Marco A. Gómez-Muñoz (ICCUB), Simone Scaringi (Durham/INAF-OACapodimonte)

BlackGEM

SN IIn

0.0047

1

BlackGEM

We classify AT2024xuo as a Type IIn supernova based on the presence of strong Balmer emission lines. See the accompanying astronote [https://www.wis-tns.org/astronotes/astronote/2025-24] for details.

2025TNSCR.213....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
20181	2025-01-15 20:54:32	Lesedi / Mookodi	900	Simon de Wet	Simon de Wet	BlackGEM	tns_2024xuo_2025-01-15_20-54-32_Lesedi_Mookodi_BlackGEM.csv		Object			The spectrum was obtained with the fully-robotic SAAO 1-m Lesedi telescope equipped with the Mookodi low-resolution (R~172) spectrograph and imager. We acknowledge the SAAO IO team including S. Potter, N. Erasmus, C. van Gend, S. Chandra, H. Worters, M. Hlakola and R. Julie for their role in these making these observations possible.

18383

2024-10-14 18:11:34

ePESSTOplus_Bot1

T. Kravtsov, C. Humina, N. Pyykkinen, N. Koivisto, C. Vassallo, E. A. Zimmerman on behalf of ePESSTO+

ePESSTO+

Other

0.0047

1

ePESSTO+

2024TNSCR4004....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
18478	2024-10-14 08:18:00	ESO-NTT / EFOSC2-NTT	299	T. Kravtsov, C. Humina	N. Pyykkinen, N. Koivisto, C. Vassallo	ePESSTO+	tns_2024xuo_2024-10-14_08-18-00_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci	tns_2024xuo_2024-10-14_08-18-00_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits	Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 229925 of Group BlackGEM
Previous RA, DEC: 10:08:49.835, -67:02:51.04 (152.207645, -67.04751)
Updated RA, DEC: 10:08:49.736, -67:02:50.70 (152.207233, -67.047417)

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