2025ahiv

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Information

Transient

Name: AT2025ahiv
Right ascension: 22h23m47.73s
Declination: 18d29m25.07s
Discovery Date: Dec. 12, 2025, 2:06 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.055

Host

Name:
Right ascension: 22h23m47.72s
Declination: 18d29m24.28s
Redshift: None
Photometric Redshift: 0.198

Processing Status: blocked

Task Name	Status	Time taken (s)
Cutout download	processed	20.06
Transient MWEBV	processed	0.05
Host match	processed	5.65
Host information	processed	0.21
Host MWEBV	processed	0.04
Global aperture construction	processed	0.69
Global aperture photometry	processed	6.82
Validate global photometry	processed	17.95
Global host SED inference	processed	408.82
Local aperture photometry	processed	6.58
Validate local photometry	no valid phot	0.03
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) = 22h23m47.73s, 18d29m25.07s
semi major axis, semi minor axis (arcsec) = 0.61, 0.61
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) = 22h23m47.72s, 18d29m24.42s
semi major axis, semi minor axis (arcsec) = 3.29, 2.98
angle (degrees, anti-clockwise from east) = -154.38

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	3.96	1.51	22.405	0.413	AB
GALEX_NUV	6.47	1.42	21.873	0.239	AB
SDSS_g	27.2	1.67	20.313	0.067	AB
DES_g	26.53	0.31	20.341	0.013	AB
PanSTARRS_g	30.48	0.66	20.190	0.023	AB
SDSS_r	40.11	2.45	19.892	0.066	AB
PanSTARRS_r	43.76	0.74	19.797	0.018	AB
DES_r	44.2	0.82	19.787	0.020	AB
SDSS_i	65.32	3.8	19.362	0.063	AB
PanSTARRS_i	60.87	0.85	19.439	0.015	AB
PanSTARRS_z	66.57	2.02	19.342	0.033	AB
SDSS_z	60.73	10.96	19.442	0.196	AB
DES_z	66.42	1.77	19.344	0.029	AB
PanSTARRS_y	62.12	4.55	19.417	0.080	AB
2MASS_J	-19.1	87.84			Vega
2MASS_H	-201.9	145.21			Vega
2MASS_K	-5.38	158.13			Vega
WISE_W2	79.91	15.4	15.804	0.209	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})\,	9.569	9.766	9.953
{\rm log}_{10}({\rm SFR})	0.081	0.482	0.840
{\rm log}_{10}({\rm sSFR})	-9.754	-9.293	-8.852
{\rm stellar\ age}	0.907	3.004	4.898

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.530	-0.849	-0.207
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-0.633	0.267	0.422

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.369	0.643	0.909
\delta	-0.102	0.120	0.283
\tau_1/\tau_2	0.726	1.070	1.385
Q_{PAH}	1.132	2.781	4.669
U_{min}	2.929	8.001	15.200
{\rm log}_{10}(\gamma_e)\,	-3.137	-2.126	-0.823

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.517	-1.705	-0.983
{\rm log}_{10}(\tau_{AGN})\,	0.924	1.297	1.744

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.016	0.276	0.531
0.03-0.10 Gyr	-0.043	0.534	0.957
0.10-0.32 Gyr	0.384	0.742	1.064
0.32-1.01 Gyr	-0.216	0.370	0.735
1.01-3.21 Gyr	-1.263	-0.175	0.195
3.21-10.19 Gyr	-1.820	-0.509	-0.056
10.19-11.33 Gyr	-2.000	-0.562	0.066