2025actr

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Information

Transient

Name: AT2025actr
Right ascension: 21h31m18.49s
Declination: 2d57m59.48s
Discovery Date: Nov. 7, 2025, 7:39 p.m.
Classification: None
Redshift: None
MW E(B-V): 0.055

Host

Name:
Right ascension: 21h31m18.45s
Declination: 2d57m58.51s
Redshift: None
Photometric Redshift: 0.122

Processing Status: blocked

Task Name	Status	Time taken (s)
Cutout download	processed	18.49
Transient MWEBV	processed	0.04
Host match	processed	5.27
Host information	processed	0.19
Host MWEBV	processed	0.04
Global aperture construction	processed	0.67
Global aperture photometry	processed	7.28
Validate global photometry	processed	18.37
Global host SED inference	processed	390.15
Local aperture photometry	processed	7.15
Validate local photometry	no valid phot	0.03
Local host SED inference	not processed	None

Cutout Download Report

2MASS_H: 2MASS_J: 2MASS_K: WISE_W1: WISE_W2: WISE_W3: WISE_W4: GALEX_NUV: GALEX_FUV: PanSTARRS_g: PanSTARRS_r: PanSTARRS_i: PanSTARRS_z: PanSTARRS_y: SDSS_i: SDSS_r: SDSS_u: SDSS_z: SDSS_g: DES_g: DES_r: DES_i: DES_z: DES_Y:

Aperture Photometry

Aperture details

RA, DEC (J2000) = 21h31m18.49s, 2d57m59.48s
semi major axis, semi minor axis (arcsec) = 0.92, 0.92
angle (degrees, anti-clockwise from east) = 0.0

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys

Data not available

Aperture details

RA, DEC (J2000) = 21h31m18.44s, 2d57m58.78s
semi major axis, semi minor axis (arcsec) = 4.37, 2.21
angle (degrees, anti-clockwise from east) = -172.07

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	1.84	0.48	23.238	0.285	AB
GALEX_NUV	3.15	0.48	22.653	0.167	AB
SDSS_u	5.32	3.37	22.086	0.687	AB
SDSS_g	25.5	1.61	20.383	0.068	AB
DES_g	26.52	0.34	20.341	0.014	AB
PanSTARRS_g	26.18	0.63	20.355	0.026	AB
SDSS_r	44.22	2.38	19.786	0.058	AB
PanSTARRS_r	40.14	0.77	19.891	0.021	AB
DES_r	43.89	0.67	19.794	0.017	AB
SDSS_i	57.08	3.34	19.509	0.064	AB
PanSTARRS_i	56.69	0.76	19.516	0.015	AB
PanSTARRS_z	65.67	1.87	19.357	0.031	AB
SDSS_z	52.94	10.0	19.591	0.205	AB
DES_z	67.06	1.61	19.334	0.026	AB
PanSTARRS_y	63.32	5.22	19.396	0.090	AB
2MASS_J	-2.51	94.78			Vega
2MASS_H	24.31	147.86	19.068	6.604	Vega
2MASS_K	64.48	171.05	17.539	2.880	Vega
WISE_W1	25.15	7.15	17.700	0.309	Vega
WISE_W2	20.15	11.83	17.300	0.638	Vega
WISE_W3	53.46	56.13	14.406	1.140	Vega
WISE_W4	34.23	348.61	13.444	11.057	Vega

Imaging data

Click the image to load the interactive plot.

Spectral Energy Distribution

Host SED inference

Local parameter details

Documentation

Data not available

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	9.301	9.414	9.556
{\rm log}_{10}({\rm SFR})	-0.844	-0.403	0.021
{\rm log}_{10}({\rm sSFR})	-10.310	-9.832	-9.341
{\rm stellar\ age}	3.404	5.172	6.604

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.422	-0.835	-0.348
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.470	0.026	0.367

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.223	0.398	0.596
\delta	-0.619	-0.253	0.009
\tau_1/\tau_2	0.736	1.084	1.404
Q_{PAH}	0.716	1.962	3.838
U_{min}	2.545	7.852	14.728
{\rm log}_{10}(\gamma_e)\,	-2.632	-1.608	-0.711

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.511	-1.565	-0.819
{\rm log}_{10}(\tau_{AGN})\,	1.144	1.524	1.863

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-1.009	-0.649	-0.369
0.03-0.10 Gyr	-0.912	-0.348	0.149
0.10-0.32 Gyr	-0.477	-0.076	0.225
0.32-1.05 Gyr	-0.601	-0.216	0.091
1.05-3.39 Gyr	-0.766	-0.412	-0.179
3.39-10.97 Gyr	-1.033	-0.584	-0.334
10.97-12.19 Gyr	-1.358	-0.599	-0.077