2025seg

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Information

Transient

Name: AT2025seg
Right ascension: 22h56m26.69s
Declination: 34d13m56.45s
Discovery Date: July 25, 2025, 9:28 p.m.
Classification: None
Redshift: None
MW E(B-V): 0.084

Host

Name:
Right ascension: 22h56m26.60s
Declination: 34d13m56.10s
Redshift: 0.048315
Photometric Redshift: 0.064

Processing Status

Task Name	Status	Time taken (s)	Warning Flag
Host match	processed	5.19
Cutout download	processed	44.26
Global aperture construction	processed	0.66
Local aperture photometry	processed	7.5
Global aperture photometry	processed	6.61
Validate local photometry	processed	0.02
Validate global photometry	processed	18.24
Host information	processed	0.15
Global host SED inference	processed	741.53
Local host SED inference	processed	873.43
Transient information	processed	0.0
Transient MWEBV	processed	0.05
Host MWEBV	processed	0.07
Processing status	completed	N/A	N/A

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) = 22h56m26.69s, 34d13m56.45s
semi major axis, semi minor axis (arcsec) = 2.11, 2.11
angle (degrees, anti-clockwise from east) = 0.0

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
SDSS_u	55.37	2.53	19.542	0.050	AB
SDSS_g	335.16	4.77	17.587	0.015	AB
DES_g	371.84	1.7	17.474	0.005	AB
PanSTARRS_g	357.44	0.66	17.517	0.002	AB
SDSS_r	879.86	7.75	16.539	0.010	AB
PanSTARRS_r	906.67	0.89	16.506	0.001	AB
DES_r	982.31	5.3	16.419	0.006	AB
SDSS_i	1372.04	9.71	16.057	0.008	AB
PanSTARRS_i	1434.92	0.92	16.008	0.001	AB
PanSTARRS_z	1870.1	2.11	15.720	0.001	AB
SDSS_z	1980.36	12.77	15.658	0.007	AB
DES_z	2003.09	11.34	15.646	0.006	AB
PanSTARRS_y	2148.0	3.35	15.570	0.002	AB

Aperture details

RA, DEC (J2000) = 22h56m26.58s, 34d13m56.38s
semi major axis, semi minor axis (arcsec) = 11.38, 9.99
angle (degrees, anti-clockwise from east) = -88.76

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	2.17	3.83	23.060	1.917	AB
GALEX_NUV	3.59	2.69	22.511	0.811	AB
SDSS_u	317.53	9.72	17.646	0.033	AB
SDSS_g	1147.36	9.11	16.251	0.009	AB
DES_g	1272.82	3.31	16.138	0.003	AB
PanSTARRS_g	1248.74	2.63	16.159	0.002	AB
SDSS_r	2906.81	14.68	15.241	0.005	AB
PanSTARRS_r	2979.95	3.13	15.214	0.001	AB
DES_r	3237.66	9.84	15.124	0.003	AB
SDSS_i	4506.44	18.74	14.765	0.005	AB
PanSTARRS_i	4647.28	3.85	14.732	0.001	AB
PanSTARRS_z	6070.62	9.28	14.442	0.002	AB
SDSS_z	6282.45	34.41	14.405	0.006	AB
DES_z	6509.96	20.72	14.366	0.003	AB
PanSTARRS_y	7532.46	16.08	14.208	0.002	AB
2MASS_J	9477.4	228.7	13.063	0.026	Vega
2MASS_H	12794.01	307.4	12.265	0.026	Vega
2MASS_K	10476.5	449.36	12.012	0.047	Vega
WISE_W1	4898.83	43.14	11.976	0.010	Vega
WISE_W2	2815.03	44.18	11.937	0.017	Vega
WISE_W3	453.28	105.03	12.085	0.252	Vega
WISE_W4	117.87	512.48	12.102	4.721	Vega

Imaging data

Spectral Energy Distribution

Host SED inference

Local parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	10.388	10.512	10.616
{\rm log}_{10}({\rm SFR})	-4.743	-1.472	0.012
{\rm log}_{10}({\rm sSFR})	-15.727	-12.133	-10.478
{\rm stellar\ age}	7.645	10.136	12.427

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.665	-1.189	-0.827
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.735	-0.675	0.269

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.556	0.808	1.112
\delta	-0.834	-0.592	-0.318
\tau_1/\tau_2	0.549	1.000	1.448
Q_{PAH}	0.469	2.458	5.509
U_{min}	3.548	9.504	17.431
{\rm log}_{10}(\gamma_e)\,	-3.173	-1.595	-0.430

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-4.113	-2.291	-0.398
{\rm log}_{10}(\tau_{AGN})\,	0.974	1.438	1.969

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-5.375	-1.621	-0.296
0.03-0.10 Gyr	-6.075	-1.849	0.042
0.10-0.33 Gyr	-6.061	-2.132	-0.128
0.33-1.09 Gyr	-5.987	-2.470	-0.335
1.09-3.58 Gyr	-4.235	-1.958	0.040
3.58-11.80 Gyr	-1.740	0.262	0.718
11.80-13.11 Gyr	0.051	1.350	1.742

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	11.069	11.108	11.158
{\rm log}_{10}({\rm SFR})	-5.985	-2.307	-0.919
{\rm log}_{10}({\rm sSFR})	-17.180	-13.324	-12.081
{\rm stellar\ age}	12.109	12.441	12.453

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.871	-0.611	-0.441
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.521	-0.402	0.291

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.224	0.363	0.597
\delta	-0.252	-0.039	0.119
\tau_1/\tau_2	0.448	0.919	1.421
Q_{PAH}	0.248	0.656	1.227
U_{min}	4.244	10.718	18.498
{\rm log}_{10}(\gamma_e)\,	-3.176	-2.144	-1.419

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-4.503	-3.738	-2.771
{\rm log}_{10}(\tau_{AGN})\,	1.145	1.631	1.967

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-6.930	-3.480	-1.521
0.03-0.10 Gyr	-6.962	-2.580	-0.821
0.10-0.33 Gyr	-7.794	-4.282	-1.746
0.33-1.09 Gyr	-8.139	-5.314	-2.419
1.09-3.58 Gyr	-5.330	-3.398	-1.569
3.58-11.80 Gyr	-2.269	-1.258	0.275
11.80-13.11 Gyr	2.186	2.240	2.294