2025opn

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Information

Transient

Name: AT2025opn
Right ascension: 1h18m58.66s
Declination: -23d04m15.64s
Discovery Date: June 15, 2025, 9:05 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.014

Host

Name:
Right ascension: 1h18m58.66s
Declination: -23d04m14.60s
Redshift: None
Photometric Redshift: 0.167

Processing Status

Task Name	Status	Time taken (s)	Warning Flag
Host match	processed	7.19
Cutout download	processed	30.3
Global aperture construction	processed	0.65
Local aperture photometry	processed	6.45
Global aperture photometry	processed	5.79
Validate local photometry	no valid phot	0.02
Validate global photometry	processed	16.18
Host information	processed	0.15
Global host SED inference	processed	434.26
Local host SED inference	not processed	None
Transient information	processed	0.0
Transient MWEBV	processed	0.05
Host MWEBV	processed	0.04
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) = 1h18m58.66s, -23d04m15.64s
semi major axis, semi minor axis (arcsec) = 0.7, 0.7
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) = 1h18m58.64s, -23d04m14.56s
semi major axis, semi minor axis (arcsec) = 4.13, 2.75
angle (degrees, anti-clockwise from east) = -144.23

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	2.56	1.21	22.878	0.513	AB
GALEX_NUV	5.39	1.34	22.071	0.270	AB
SDSS_u	14.55	3.14	20.993	0.235	AB
SDSS_g	47.03	2.06	19.719	0.047	AB
DES_g	47.0	0.28	19.720	0.006	AB
PanSTARRS_g	49.2	0.96	19.670	0.021	AB
PanSTARRS_r	117.63	1.39	18.724	0.013	AB
DES_r	126.23	0.47	18.647	0.004	AB
PanSTARRS_i	174.19	1.44	18.297	0.009	AB
PanSTARRS_z	207.41	2.68	18.108	0.014	AB
SDSS_z	266.08	11.18	17.837	0.046	AB
DES_z	239.84	1.94	17.950	0.009	AB
PanSTARRS_y	269.9	6.28	17.822	0.025	AB
2MASS_J	438.16	94.16	16.401	0.233	Vega
2MASS_H	598.15	163.58	15.590	0.297	Vega
2MASS_K	651.33	170.98	15.028	0.285	Vega
WISE_W1	239.72	16.11	15.252	0.073	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})\,	10.546	10.602	10.667
{\rm log}_{10}({\rm SFR})	0.076	0.393	0.692
{\rm log}_{10}({\rm sSFR})	-10.566	-10.222	-9.904
{\rm stellar\ age}	6.736	7.473	9.794

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.496	-0.205	0.014
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.284	-0.695	-0.180

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.284	0.467	0.686
\delta	-0.750	-0.463	-0.213
\tau_1/\tau_2	0.938	1.272	1.627
Q_{PAH}	0.822	2.236	4.375
U_{min}	2.659	7.358	13.925
{\rm log}_{10}(\gamma_e)\,	-3.018	-1.981	-0.772

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.838	-1.980	-1.045
{\rm log}_{10}(\tau_{AGN})\,	1.048	1.431	1.861

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	0.228	0.468	0.676
0.03-0.10 Gyr	-0.102	0.357	0.722
0.10-0.32 Gyr	-0.613	-0.062	0.332
0.32-1.03 Gyr	-0.940	-0.296	0.119
1.03-3.28 Gyr	-0.732	-0.032	0.412
3.28-10.51 Gyr	0.371	0.782	0.894
10.51-11.67 Gyr	0.523	1.082	1.707