2025skn

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Information

Transient

Name: AT2025skn
Right ascension: 0h55m16.73s
Declination: -3d52m23.16s
Discovery Date: July 24, 2025, 9:17 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.037

Host

Name:
Right ascension: 0h55m16.73s
Declination: -3d52m24.61s
Redshift: None
Photometric Redshift: 0.122

Processing Status

Task Name	Status	Time taken (s)	Warning Flag
Host match	processed	7.51
Cutout download	processed	22.48
Global aperture construction	processed	7.93
Local aperture photometry	processed	5.78
Global aperture photometry	processed	5.11
Validate local photometry	no valid phot	0.02
Validate global photometry	processed	16.08
Host information	processed	0.14
Global host SED inference	processed	564.23
Local host SED inference	not processed	None
Transient information	processed	0.0
Transient MWEBV	processed	0.12
Host MWEBV	processed	0.05
Processing status	blocked	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) = 0h55m16.73s, -3d52m23.16s
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) = 0h55m16.98s, -3d52m23.65s
semi major axis, semi minor axis (arcsec) = 5.1, 3.02
angle (degrees, anti-clockwise from east) = -21.1

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	5.52	2.3	22.045	0.453	AB
GALEX_NUV	6.09	2.06	21.938	0.366	AB
SDSS_u	16.06	4.98	20.886	0.337	AB
SDSS_g	14.2	1.58	21.019	0.121	AB
PanSTARRS_g	17.2	0.85	20.811	0.054	AB
SDSS_r	31.74	2.55	20.146	0.087	AB
SDSS_i	35.04	3.68	20.039	0.114	AB
PanSTARRS_i	32.9	1.08	20.107	0.036	AB
PanSTARRS_z	40.46	2.45	19.882	0.066	AB
SDSS_z	10.6	11.59	21.337	1.186	AB
DES_z	62.63	1.08	19.408	0.019	AB
PanSTARRS_y	38.06	8.59	19.949	0.245	AB
2MASS_J	-27.92	92.57			Vega
2MASS_H	21.8	158.24	19.186	7.882	Vega
2MASS_K	-36.39	186.6			Vega
WISE_W1	238.93	13.37	15.255	0.061	Vega
WISE_W2	240.08	18.71	14.610	0.085	Vega
WISE_W3	674.13	83.47	11.654	0.134	Vega
WISE_W4	3478.52	715.56	8.427	0.223	Vega

Imaging data

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})\,	9.050	9.465	9.636
{\rm log}_{10}({\rm SFR})	-0.968	-0.135	0.684
{\rm log}_{10}({\rm sSFR})	-10.558	-9.643	-8.303
{\rm stellar\ age}	0.229	3.944	7.021

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.946	-0.196	0.088
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.288	-0.680	-0.200

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.596	1.040	1.532
\delta	-0.274	0.047	0.291
\tau_1/\tau_2	0.467	0.867	1.329
Q_{PAH}	1.236	3.143	5.083
U_{min}	4.167	10.099	17.642
{\rm log}_{10}(\gamma_e)\,	-2.102	-1.198	-0.494

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-0.999	-0.548	-0.250
{\rm log}_{10}(\tau_{AGN})\,	0.733	0.810	0.979

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-2.602	-0.719	-0.054
0.03-0.10 Gyr	-1.213	-0.071	0.825
0.10-0.32 Gyr	-1.495	-0.190	0.665
0.32-1.05 Gyr	-2.867	-0.627	0.064
1.05-3.39 Gyr	-4.128	-0.693	-0.130
3.39-10.97 Gyr	-4.821	-1.020	-0.269
10.97-12.19 Gyr	-5.077	-0.943	0.041