2025zhn

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Information

Transient

Name: AT2025zhn
Right ascension: 17h45m29.57s
Declination: 54d08m09.30s
Discovery Date: Sept. 30, 2025, 3:48 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.030

Host

Name:
Right ascension: 17h45m29.81s
Declination: 54d08m09.16s
Redshift: None
Photometric Redshift: 0.175

Processing Status: blocked

Task Name	Status	Time taken (s)
Cutout download	processed	15.42
Transient MWEBV	processed	0.06
Host match	processed	4.71
Host information	processed	0.11
Host MWEBV	processed	0.06
Global aperture construction	processed	0.63
Global aperture photometry	processed	4.76
Validate global photometry	processed	13.64
Global host SED inference	processed	440.65
Local aperture photometry	processed	4.66
Validate local photometry	no valid phot	0.02
Local host SED inference	not processed	None

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) = 17h45m29.57s, 54d08m09.30s
semi major axis, semi minor axis (arcsec) = 0.68, 0.68
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) = 17h45m29.79s, 54d08m09.31s
semi major axis, semi minor axis (arcsec) = 5.01, 4.09
angle (degrees, anti-clockwise from east) = -96.62

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
SDSS_u	5.13	3.88	22.125	0.821	AB
SDSS_g	77.46	2.61	19.177	0.037	AB
PanSTARRS_g	85.61	1.22	19.069	0.015	AB
SDSS_r	219.21	4.33	18.048	0.021	AB
PanSTARRS_r	222.61	1.38	18.031	0.007	AB
SDSS_i	332.61	5.73	17.595	0.019	AB
PanSTARRS_i	336.92	1.77	17.581	0.006	AB
PanSTARRS_z	428.61	3.55	17.320	0.009	AB
SDSS_z	510.53	13.41	17.130	0.029	AB
PanSTARRS_y	502.48	6.32	17.147	0.014	AB
2MASS_J	615.07	114.05	16.033	0.201	Vega
2MASS_H	820.1	197.27	15.248	0.261	Vega
2MASS_K	1175.7	192.71	14.386	0.178	Vega
WISE_W1	369.91	9.4	14.781	0.028	Vega
WISE_W2	245.96	12.55	14.584	0.055	Vega
WISE_W3	97.44	34.0	13.754	0.379	Vega
WISE_W4	126.89	201.07	12.021	1.720	Vega

Imaging data

Click the image to load the interactive plot.

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})\,	10.735	10.853	11.006
{\rm log}_{10}({\rm SFR})	-2.595	-0.199	0.597
{\rm log}_{10}({\rm sSFR})	-13.768	-11.072	-10.214
{\rm stellar\ age}	5.429	6.831	10.406

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.295	-0.924	-0.704
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.535	-0.766	0.012

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.395	0.541	0.715
\delta	-0.893	-0.711	-0.421
\tau_1/\tau_2	0.564	0.999	1.404
Q_{PAH}	0.897	2.740	5.167
U_{min}	2.831	8.819	17.365
{\rm log}_{10}(\gamma_e)\,	-3.001	-1.740	-0.718

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-4.105	-2.697	-1.648
{\rm log}_{10}(\tau_{AGN})\,	0.991	1.463	1.892

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-3.366	-0.435	0.305
0.03-0.10 Gyr	-3.473	-0.274	0.692
0.10-0.32 Gyr	-3.138	-0.077	0.837
0.32-1.02 Gyr	-2.837	-0.010	0.784
1.02-3.26 Gyr	-1.880	0.609	1.064
3.26-10.42 Gyr	-0.548	0.944	1.177
10.42-11.58 Gyr	-0.057	1.102	2.138