2025skm

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Information

Transient

Name: AT2025skm
Right ascension: 22h41m24.75s
Declination: 1d46m01.17s
Discovery Date: July 23, 2025, 10:08 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.073

Host

Name:
Right ascension: 22h41m24.75s
Declination: 1d46m01.76s
Redshift: None
Photometric Redshift: 0.144

Processing Status

Task Name	Status	Time taken (s)	Warning Flag
Host match	processed	6.77
Cutout download	processed	8.63
Global aperture construction	processed	3.04
Local aperture photometry	processed	7.41
Global aperture photometry	processed	6.82
Validate local photometry	no valid phot	0.03
Validate global photometry	processed	17.89
Host information	processed	0.15
Global host SED inference	processed	502.36
Local host SED inference	not processed	None
Transient information	processed	0.0
Transient MWEBV	processed	0.05
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) = 22h41m24.75s, 1d46m01.17s
semi major axis, semi minor axis (arcsec) = 0.79, 0.79
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) = 22h41m24.72s, 1d46m01.83s
semi major axis, semi minor axis (arcsec) = 4.07, 3.04
angle (degrees, anti-clockwise from east) = -89.22

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	2.22	1.14	23.035	0.559	AB
GALEX_NUV	2.38	1.23	22.961	0.564	AB
SDSS_u	4.65	2.91	22.231	0.679	AB
SDSS_g	10.99	1.38	21.297	0.136	AB
DES_g	8.75	0.18	21.545	0.023	AB
PanSTARRS_g	8.07	0.76	21.633	0.103	AB
SDSS_r	15.24	1.88	20.942	0.134	AB
PanSTARRS_r	10.52	0.85	21.344	0.087	AB
DES_r	13.77	0.24	21.053	0.019	AB
SDSS_i	14.32	2.62	21.010	0.199	AB
PanSTARRS_i	16.95	0.77	20.827	0.049	AB
PanSTARRS_z	17.75	2.28	20.777	0.139	AB
SDSS_z	47.72	9.65	19.703	0.220	AB
DES_z	16.55	0.82	20.853	0.054	AB
PanSTARRS_y	10.15	6.13	21.384	0.656	AB
2MASS_J	68.57	109.16	18.415	1.728	Vega
2MASS_H	-11.14	186.61			Vega
2MASS_K	223.72	190.28	16.188	0.923	Vega
WISE_W1	-2.03	9.23			Vega
WISE_W2	2.51	11.52	19.561	4.980	Vega
WISE_W3	-75.83	79.6			Vega
WISE_W4	-60.87	410.45			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})\,	8.623	8.867	9.058
{\rm log}_{10}({\rm SFR})	-0.872	-0.175	0.452
{\rm log}_{10}({\rm sSFR})	-9.828	-9.019	-8.202
{\rm stellar\ age}	0.209	1.738	5.064

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.605	-1.037	-0.181
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.469	-0.198	0.262

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.312	0.713	1.265
\delta	-0.458	-0.069	0.238
\tau_1/\tau_2	0.705	1.176	1.597
Q_{PAH}	1.380	3.366	5.284
U_{min}	3.120	8.845	16.899
{\rm log}_{10}(\gamma_e)\,	-3.032	-1.906	-0.721

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.370	-0.897	-0.057
{\rm log}_{10}(\tau_{AGN})\,	1.045	1.447	1.816

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-1.494	-0.605	-0.165
0.03-0.10 Gyr	-1.019	-0.108	0.596
0.10-0.32 Gyr	-1.237	-0.159	0.342
0.32-1.04 Gyr	-3.082	-0.892	-0.218
1.04-3.34 Gyr	-4.765	-1.688	-0.820
3.34-10.74 Gyr	-5.233	-1.999	-1.036
10.74-11.93 Gyr	-5.576	-1.950	-0.865