2023tmh | Transient Name Server

RA/DEC (2000)

00:43:20.152 +41:13:03.78

10.8339677768 +41.217717319

Type

---

Redshift

Discovery Report Classification Report

Reporting Group

ROTS

Discovering Data Source

None

Discovery Date

2023-09-23 18:53:09.888

TNS AT

Y

Public

Y

Host Name

M31

Host Redshift

-0.001

Discovery Mag

19.7

Filter

V-Johnson

Reporter/s

Jingyuan Zhao, Weihao Wang

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
	15761	2023-09-27 20:01:42	Other / Other	7200	Xing Gao (Xingming Obs.)	Jingyuan Zhao (Xingming Obs.)	XOSS	tns_2023tmh_2023-09-27_20-01-42_Other_Other_XOSS.DAT	tns_2023tmh_2023-09-27_20-01-42_Other_Other_XOSS.fit	Object			We obtained the low-resolution spectrum using the Alpy 600 spectrograph attached to a 0.6-m f/8 Ritchey-Chretien telescope.
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 We obtained the low-resolution spectrum using the Alpy 600 spectrograph attached to a 0.6-m f/8 Ritchey-Chretien telescope.

Light Curves

Filter

Tel / Inst

Obs-date range

JD Range

Photometry

w-P1

PS2_GPC2

2023-10-23 06:40:35 - 2023-10-23 06:40:35

2460240.77818 - 2460240.77818

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
370320	2023-10-23 06:40:35	2460240.77818	18.72	0.03	22	ABMag	w-P1	PS2_GPC2	45	Robot

r-ZTF

P48_ZTF-Cam

2023-09-25 09:12:58 - 2023-11-02 07:17:46

2460212.884 - 2460250.804

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
371592	2023-11-02 07:17:46	2460250.804	19.08			ABMag	r-ZTF	P48_ZTF-Cam	30	ZTF
371591	2023-09-25 09:12:58	2460212.884	19.44			ABMag	r-ZTF	P48_ZTF-Cam	30	ZTF

g-ZTF

P48_ZTF-Cam

2023-09-22 08:41:17 - 2023-09-22 08:41:17

2460209.862 - 2460209.862

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
371590	2023-09-22 08:41:17	2460209.862			19.17	ABMag	g-ZTF	P48_ZTF-Cam	30	ZTF	[Last non detection]

orange-ATLAS

ATLAS-HKO_ATLAS-02

2023-09-25 10:33:13 - 2023-09-26 11:04:16

2460212.93973 - 2460213.9613

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
365698	2023-09-26 11:04:16	2460213.9613	18.029	0.117	19.13	ABMag	orange-ATLAS	ATLAS-HKO_ATLAS-02	30	Robot
365697	2023-09-25 10:33:13	2460212.93973			19.18	ABMag	orange-ATLAS	ATLAS-HKO_ATLAS-02	30	Robot	[Last non detection]

R-Cousins

Other_Other

2023-09-22 16:16:01 - 2023-09-27 16:43:11

2460210.17779 - 2460215.19666

3

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
365840	2023-09-27 16:43:11	2460215.19666	17.1		20	VegaMag	R-Cousins	Other_Other	600	Jingyuan Zhao, Weihao Wang	The image from the 0.5-m f/6.8 Lulin-ASIAA Telescope for Transients and Education (LATTE) at Lulin Observatory (D35).
365262	2023-09-23 18:58:18	2460211.29049	19.6		21	VegaMag	R-Cousins	Other_Other	300	Jingyuan Zhao, Weihao Wang	The image from the 0.5-m f/6.8 Lulin-ASIAA Telescope for Transients and Education (LATTE) of Lulin Observatory (D35).
365260	2023-09-22 16:16:01	2460210.17779			21	VegaMag	R-Cousins	Other_Other	300	Jingyuan Zhao, Weihao Wang	[Last non detection] The image from the 0.5-m f/6.8 Lulin-ASIAA Telescope for Transients and Education (LATTE) of Lulin Observatory (D35).

V-Johnson

Other_Other

2023-09-23 18:53:10 - 2023-09-27 16:32:37

2460211.28692 - 2460215.18932

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
365839	2023-09-27 16:32:37	2460215.18932	17.3		20.5	VegaMag	V-Johnson	Other_Other	600	Jingyuan Zhao, Weihao Wang	The image from the 0.5-m f/6.8 Lulin-ASIAA Telescope for Transients and Education (LATTE) at Lulin Observatory (D35).
365261	2023-09-23 18:53:10	2460211.28692	19.7		21	VegaMag	V-Johnson	Other_Other	300	Jingyuan Zhao, Weihao Wang	The image from the 0.5-m f/6.8 Lulin-ASIAA Telescope for Transients and Education (LATTE) of Lulin Observatory (D35).

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

192353

2023-11-03 00:54:39

ZTF_Bot1

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

ZTF

ZTF

00:43:20.151

+41:13:03.70

2023-09-25 09:12:57.600

19.44

r-ZTF

PSN

ZTF23abgsmsg

ZTF

N

191639

2023-10-24 13:38:00

PS1_Bot1

K. C. Chambers, T. de Boer, J. Bulger et al.

Pan-STARRS

Pan-STARRS

00:43:20.152

+41:13:03.78

2023-10-23 06:40:34.752

18.72

w-P1

PSN

PS23jth

Pan-STARRS

N

189269

2023-09-28 08:49:44

Jingyuan Zhao

Jingyuan Zhao, Weihao Wang

ROTS

00:43:20.110

+41:13:04.10

2023-09-27 16:32:37.248

17.3

V-Johnson

PNV

M31

AT 2023tmh follow-up observation. The transient has brightened to 17.3 V and 17.1 R. Spectroscopic and photometric observations are strongly encouraged.

N

189194

2023-09-26 14:58:00

ATLAS_Bot1

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

ATLAS

ATLAS

00:43:20.153

+41:13:03.67

2023-09-26 11:04:16.320

18.029

orange-ATLAS

PSN

ATLAS23tfm

ATLAS

N

188974

2023-09-24 04:19:57

Jingyuan Zhao

Jingyuan Zhao, Weihao Wang

ROTS

00:43:20.120

+41:13:04.10

2023-09-23 18:53:09.888

19.7

V-Johnson

2

PNV

M31

The image from the 0.5-m f/6.8 Lulin-ASIAA Telescope for Transients and Education (LATTE) of Lulin Observatory (D35), exposure 300s with V filter.

2023TNSTR2370....1Z

N

Related files

File	Comments	Last Modified (UT)	Modified By
		2023-09-24 08:26:46	Jingyuan Zhao
tns_2023tmh_atrep_188974.png		2023-09-24 08:29:53	Jingyuan Zhao

Classification Reports

ID

Time received (UT)

Sender

Classifier/s

Group

Classification

Redshift

Spectra

Related files

Assoc. Groups

End prop. period

Remarks

ADS Bibcode

15676

2023-10-01 06:25:03

Jingyuan Zhao

Jingyuan Zhao (Xingming Obs.), Kenta Taguchi (Kyoto University), Xing Gao (Xingming Obs.)

XOSS

Other

1

XOSS

A low resolution spectrum of AT 2023tmh was obtained by XOSS. It is a blue continuum shows weak narrow Hα emission line and possible Hβ emission line. Because of the low S/N, we're not sure AT 2023tmh is a dwarf nova in the Milky Way or a nova in M31. Further spectroscopic and photometric observations are strongly encouraged in order to determine its nature.

2023TNSCR2455....1Z

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
15761	2023-09-27 20:01:42	Other / Other	7200	Xing Gao (Xingming Obs.)	Jingyuan Zhao (Xingming Obs.)	XOSS	tns_2023tmh_2023-09-27_20-01-42_Other_Other_XOSS.DAT	tns_2023tmh_2023-09-27_20-01-42_Other_Other_XOSS.fit	Object			We obtained the low-resolution spectrum using the Alpy 600 spectrograph attached to a 0.6-m f/8 Ritchey-Chretien telescope.

Comments

Object coordinates updated

Object coordinates updated according to AT-report 191639 of Group Pan-STARRS
Previous RA, DEC: 00:43:20.153, +41:13:03.67 (10.8339688889, +41.2176855556)
Updated RA, DEC: 00:43:20.152, +41:13:03.78 (10.8339677768, 41.217717319)

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Object coordinates updated

Object coordinates updated according to AT-report 189194 of Group ATLAS
Previous RA, DEC: 00:43:20.120, +41:13:04.10 (10.833833, +41.217806)
Updated RA, DEC: 00:43:20.153, +41:13:03.67 (10.8339688889, 41.2176855556)

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