2024mxe | Transient Name Server

RA/DEC (2000)

11:28:11.680 +25:39:50.15

172.048667 +25.663931

Type

Gap

Redshift

Discovery Report Classification Report

Reporting Group

GOTO

Discovering Data Source

GOTO

Discovery Date

2024-06-26 22:04:47.136

TNS AT

Public

Discovery Mag

18.74

Filter

L-GOTO

Reporter/s

A. Kumar, K. Ackley, M. Dyer, F. Jiménez-Ibarra, J. Lyman, K. Ulaczyk, D. Steeghs, D. Galloway, V. Dhillon, P. O'Brien, G. Ramsay, K. Noysena, R. Kotak, R. Breton, L. Nuttall, E. Pallé, D. Pollacco, T. Killestein, D. O'Neill, on behalf of GOTO collaboration

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
	17709	2024-07-12 03:21:36	CA-2.2m / CAFOS	2700	J. I. Vico Linares and I. Hermelo		CET-3PO	tns_2024mxe_2024-07-12.14_CA-2.2m_CAFOS_CET-3PO.txt		Object			The spectrum of AT 2024mxe on 2024-07-12T14:46:15 UT was obtained with the low-resolution CAFOS instrument mounted on the 2.2 m telescope at Calar Alto Observatory. The observations were made with the G-200 grism and a 2 arcsec slit, with a total exposure time of 2700s. The data reduction was done using IRAF. Given the location of the transient on top of a bright host, the background was carefully adjusted to minimize host contamination. We performed flux calibration using the standard star HD 93521.
Binning factor: (rounded to nearest integer >1) Mouse hovers at WL: 0 (rest), ▌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 of AT 2024mxe on 2024-07-12T14:46:15 UT was obtained with the low-resolution CAFOS instrument mounted on the 2.2 m telescope at Calar Alto Observatory. The observations were made with the G-200 grism and a 2 arcsec slit, with a total exposure time of 2700s. The data reduction was done using IRAF. Given the location of the transient on top of a bright host, the background was carefully adjusted to minimize host contamination. We performed flux calibration using the standard star HD 93521.

Light Curves

Filter

Tel / Inst

Obs-date range

JD Range

Photometry

L-GOTO

GOTO-N_GOTO-2

2024-06-19 23:07:27 - 2024-06-26 22:04:47

2460481.463512 - 2460488.419993

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
415047	2024-06-26 22:04:47	2460488.419993	18.74	0.12		ABMag	L-GOTO	GOTO-N_GOTO-2	180
415046	2024-06-19 23:07:27	2460481.463512			18.5	ABMag	L-GOTO	GOTO-N_GOTO-2	180		[Last non detection]

r-ZTF

P48_ZTF-Cam

2024-07-17 04:16:50 - 2024-07-18 04:28:18

2460508.6783565 - 2460509.6863194

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Remarks
419755	2024-07-18 04:28:18	2460509.6863194	18.5834	0.14924		ABMag	r-ZTF	P48_ZTF-Cam
419754	2024-07-17 04:22:32	2460508.6823148	18.6719	0.129128		ABMag	r-ZTF	P48_ZTF-Cam
419753	2024-07-17 04:16:50	2460508.6783565			17.3192	ABMag	r-ZTF	P48_ZTF-Cam	[Last non detection]

G-Gaia

Gaia_Gaia-photometric

2024-05-26 05:11:02 - 2024-06-29 08:55:41

2460456.716 - 2460490.872

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
420434	2024-06-29 08:55:41	2460490.872	18.54	0.2		ABMag	G-Gaia	Gaia_Gaia-photometric	60	Robot
420433	2024-05-26 05:11:02	2460456.716			21.5	ABMag	G-Gaia	Gaia_Gaia-photometric		Robot	[Last non detection]

orange-ATLAS

ATLAS-MLO_ATLAS-01

2024-06-27 08:39:37 - 2024-06-27 08:39:37

2460488.86084 - 2460488.86084

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
415495	2024-06-27 08:39:37	2460488.86084			19.29	ABMag	orange-ATLAS	ATLAS-MLO_ATLAS-01	30	Robot	[Last non detection]

orange-ATLAS

ATLAS-HKO_ATLAS-02

2024-06-28 06:17:54 - 2024-06-28 06:17:54

2460489.76243 - 2460489.76243

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
415496	2024-06-28 06:17:54	2460489.76243	18.511	0.16	19.19	ABMag	orange-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	AT Type	Internal name	Assoc. Groups	Remarks	ADS Bibcode	Unreal
219317	2024-07-24 08:28:40	Gaia_Bot1	S.T. Hodgkin, E. Breedt, A. Delgado et al.	GaiaAlerts	GaiaAlerts	11:28:11.680	+25:39:50.15	2024-06-29 08:55:40.800	18.54	G-Gaia	PSN	Gaia24bwz	GaiaAlerts	Candidate SN in galaxy NGC 3689		N
219001	2024-07-18 05:18:56	Fritz	Nabeel Rehemtulla (CIERA, NU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al.	ZTF	ZTF	11:28:11.693	+25:39:50.15	2024-07-17 04:22:31.998	18.6719	r-ZTF	PSN	ZTF24aatbsoy	ZTF	Bright (m_peak <= 18.5) transient candidate identified autonomously by BTSbot (Rehemtulla et al. 2024; arXiv:2401.15167).		N
216181	2024-06-28 19:50:02	ATLAS_Bot1	J. Tonry, L. Denneau, H. Weiland et al.	ATLAS	ATLAS	11:28:11.720	+25:39:50.55	2024-06-28 06:17:53.952	18.511	orange-ATLAS	PSN	ATLAS24jxd	ATLAS			N
215978	2024-06-26 22:33:53	GOTO_bot	A. Kumar, K. Ackley, M. Dyer et al.	GOTO	GOTO	11:28:11.753	+25:39:50.31	2024-06-26 22:04:47.136	18.74	L-GOTO	Other	GOTO24dae	GOTO		2024TNSTR2113....1K	N

Classification Reports

Time received (UT)

Sender

Classifier/s

Group

Classification

Redshift

Spectra

Related files

Assoc. Groups

End prop. period

Remarks

ADS Bibcode

17622

2024-08-08 19:12:09

Grace Katusiime

Grace Katusiime, Marco A. Gómez-Muñoz, Nadejda Blagorodnova, Hugo Tranin, Maxime Wavasseur, Gerard Garcia (ICCUB), David Jones (IAC), Viraj Karambelkar (Caltech)

CET-3PO

Gap

CET-3PO

Despite having a poor signal-to-noise ratio, the spectrum shows a narrow H-alpha line but lacks broad supernova features. Given its estimated absolute magnitude of -14.6, we conclude that AT 2024mxe is not a supernova but rather a transient in the luminosity gap between novae and supernovae.

2024TNSCR2827....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
17709	2024-07-12 03:21:36	CA-2.2m / CAFOS	2700	J. I. Vico Linares and I. Hermelo		CET-3PO	tns_2024mxe_2024-07-12.14_CA-2.2m_CAFOS_CET-3PO.txt		Object			The spectrum of AT 2024mxe on 2024-07-12T14:46:15 UT was obtained with the low-resolution CAFOS instrument mounted on the 2.2 m telescope at Calar Alto Observatory. The observations were made with the G-200 grism and a 2 arcsec slit, with a total exposure time of 2700s. The data reduction was done using IRAF. Given the location of the transient on top of a bright host, the background was carefully adjusted to minimize host contamination. We performed flux calibration using the standard star HD 93521.

Comments

Object coordinates updated

Object coordinates updated according to AT-report 219317 of Group GaiaAlerts
Previous RA, DEC: 11:28:11.693, +25:39:50.15 (172.0487222, +25.6639314)
Updated RA, DEC: 11:28:11.680, +25:39:50.15 (172.048667, 25.663931)

Object coordinates updated

Object coordinates updated according to AT-report 219001 of Group ZTF
Previous RA, DEC: 11:28:11.720, +25:39:50.55 (172.048831818, +25.6640427273)
Updated RA, DEC: 11:28:11.693, +25:39:50.15 (172.0487222, 25.6639314)

Object coordinates updated

Object coordinates updated according to AT-report 216181 of Group ATLAS
Previous RA, DEC: 11:28:11.753, +25:39:50.31 (172.04897, +25.663974)
Updated RA, DEC: 11:28:11.720, +25:39:50.55 (172.048831818, 25.6640427273)