2025sev

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Information

Transient

Name: AT2025sev
Right ascension: 17h35m06.19s
Declination: 64d05m10.72s
Discovery Date: July 25, 2025, 10:03 p.m.
Classification: None
Redshift: None
MW E(B-V): 0.024

Host

Name:
Right ascension: 17h35m06.16s
Declination: 64d05m10.40s
Redshift: None
Photometric Redshift: 0.085

Processing Status: blocked

Task Name	Status	Time taken (s)
Cutout download	processed	30.45
Transient MWEBV	processed	0.05
Host match	processed	5.98
Host information	processed	0.14
Host MWEBV	processed	0.05
Global aperture construction	processed	0.65
Global aperture photometry	processed	4.85
Validate global photometry	processed	14.5
Global host SED inference	processed	486.69
Local aperture photometry	processed	5.39
Validate local photometry	processed	0.03
Local host SED inference	processed	455.46

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) = 17h35m06.19s, 64d05m10.72s
semi major axis, semi minor axis (arcsec) = 1.26, 1.26
angle (degrees, anti-clockwise from east) = 0.0

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
PanSTARRS_r	24.77	0.36	20.415	0.016	AB
SDSS_i	29.82	1.71	20.214	0.062	AB
PanSTARRS_i	29.63	0.41	20.221	0.015	AB
PanSTARRS_z	31.27	1.16	20.162	0.040	AB
PanSTARRS_y	29.23	2.35	20.235	0.087	AB

Aperture details

RA, DEC (J2000) = 17h35m06.15s, 64d05m10.48s
semi major axis, semi minor axis (arcsec) = 3.64, 2.6
angle (degrees, anti-clockwise from east) = -142.82

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	11.47	2.72	21.251	0.257	AB
GALEX_NUV	13.42	0.67	21.080	0.055	AB
SDSS_u	17.94	2.61	20.765	0.158	AB
SDSS_g	35.55	1.8	20.023	0.055	AB
PanSTARRS_g	34.31	0.83	20.062	0.026	AB
SDSS_r	47.21	2.22	19.715	0.051	AB
PanSTARRS_r	44.33	0.83	19.783	0.020	AB
SDSS_i	59.26	3.08	19.468	0.056	AB
PanSTARRS_i	54.47	0.97	19.560	0.019	AB
PanSTARRS_z	52.89	2.72	19.592	0.056	AB
SDSS_z	29.9	8.69	20.211	0.316	AB
PanSTARRS_y	55.53	5.5	19.539	0.108	AB
2MASS_J	45.54	97.04	18.859	2.314	Vega
2MASS_H	-108.2	132.47			Vega
2MASS_K	106.14	170.96	16.997	1.749	Vega
WISE_W1	-1.16	12.09			Vega
WISE_W2	4.8	13.32	18.857	3.011	Vega
WISE_W3	51.7	20.46	14.442	0.430	Vega
WISE_W4	365.32	143.12	10.873	0.425	Vega

Imaging data

Click the image to load the interactive plot.

Spectral Energy Distribution

Host SED inference

Local parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	8.521	8.802	8.956
{\rm log}_{10}({\rm SFR})	-1.828	-1.153	-0.274
{\rm log}_{10}({\rm sSFR})	-10.649	-9.960	-8.999
{\rm stellar\ age}	1.549	5.785	7.482

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.691	-1.257	-0.349
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.448	-0.809	-0.136

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.090	0.307	0.770
\delta	-0.611	-0.162	0.192
\tau_1/\tau_2	0.669	1.078	1.459
Q_{PAH}	1.050	3.048	5.388
U_{min}	3.245	8.847	16.131
{\rm log}_{10}(\gamma_e)\,	-2.644	-1.528	-0.530

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-1.589	-0.308	0.115
{\rm log}_{10}(\tau_{AGN})\,	1.167	1.671	2.011

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-2.096	-1.547	-1.024
0.03-0.10 Gyr	-1.955	-1.083	-0.129
0.10-0.33 Gyr	-2.167	-1.104	-0.473
0.33-1.07 Gyr	-2.594	-1.190	-0.618
1.07-3.48 Gyr	-3.075	-1.226	-0.891
3.48-11.38 Gyr	-3.128	-1.221	-0.909
11.38-12.65 Gyr	-3.105	-1.298	-0.617

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	8.674	8.939	9.090
{\rm log}_{10}({\rm SFR})	-0.486	-0.062	0.395
{\rm log}_{10}({\rm sSFR})	-9.458	-8.974	-8.321
{\rm stellar\ age}	1.497	5.287	7.171

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.653	-1.024	-0.123
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.569	-0.064	0.288

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.080	0.425	0.938
\delta	-0.099	0.208	0.344
\tau_1/\tau_2	0.625	1.037	1.461
Q_{PAH}	1.288	3.235	5.145
U_{min}	3.265	9.310	17.050
{\rm log}_{10}(\gamma_e)\,	-2.797	-1.548	-0.489

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.525	-1.426	-0.398
{\rm log}_{10}(\tau_{AGN})\,	0.974	1.464	1.854

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.951	-0.644	-0.359
0.03-0.10 Gyr	-0.415	0.056	0.539
0.10-0.33 Gyr	-1.747	-0.620	-0.113
0.33-1.07 Gyr	-2.269	-1.037	-0.644
1.07-3.48 Gyr	-2.800	-1.164	-0.808
3.48-11.38 Gyr	-2.841	-1.203	-0.850
11.38-12.65 Gyr	-2.691	-1.094	-0.461