2025ysv

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Information

Transient

Name: AT2025ysv
Right ascension: 3h42m01.50s
Declination: -18d10m29.59s
Discovery Date: Sept. 26, 2025, 12:40 p.m.
Classification: None
Redshift: None
MW E(B-V): 0.059

Host

Name:
Right ascension: 3h42m01.50s
Declination: -18d10m29.94s
Redshift: None
Photometric Redshift: 0.140

Processing Status: blocked

Task Name	Status	Time taken (s)
Cutout download	processed	6.18
Transient MWEBV	processed	0.09
Host match	processed	6.28
Host information	processed	0.11
Host MWEBV	processed	0.04
Global aperture construction	processed	0.62
Global aperture photometry	processed	5.8
Validate global photometry	processed	14.22
Global host SED inference	processed	421.7
Local aperture photometry	processed	5.73
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) = 3h42m01.50s, -18d10m29.59s
semi major axis, semi minor axis (arcsec) = 0.81, 0.81
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) = 3h42m01.48s, -18d10m29.73s
semi major axis, semi minor axis (arcsec) = 3.16, 2.61
angle (degrees, anti-clockwise from east) = -25.57

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	9.0	2.18	21.515	0.263	AB
GALEX_NUV	9.92	1.5	21.409	0.164	AB
DES_g	35.2	0.24	20.034	0.007	AB
PanSTARRS_g	34.75	0.73	20.048	0.023	AB
PanSTARRS_r	50.55	0.97	19.641	0.021	AB
DES_r	56.1	0.31	19.528	0.006	AB
PanSTARRS_i	66.4	0.89	19.345	0.015	AB
PanSTARRS_z	70.5	2.24	19.280	0.034	AB
DES_z	75.54	1.3	19.205	0.019	AB
PanSTARRS_y	68.64	5.3	19.309	0.084	AB
2MASS_J	184.75	98.3	17.339	0.578	Vega
2MASS_H	135.35	138.25	17.204	1.109	Vega
2MASS_K	-166.27	178.97			Vega
WISE_W1	41.54	8.64	17.155	0.226	Vega
WISE_W2	43.75	12.15	16.459	0.302	Vega
WISE_W3	122.71	47.83	13.504	0.423	Vega
WISE_W4	415.57	407.17	10.733	1.064	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})\,	9.476	9.578	9.694
{\rm log}_{10}({\rm SFR})	-0.093	0.181	0.432
{\rm log}_{10}({\rm sSFR})	-9.727	-9.426	-9.128
{\rm stellar\ age}	4.469	5.606	6.680

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.207	-0.671	-0.191
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.710	-0.949	0.175

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.085	0.234	0.442
\delta	-0.204	0.176	0.332
\tau_1/\tau_2	0.773	1.117	1.463
Q_{PAH}	0.925	2.598	4.630
U_{min}	2.938	8.156	15.343
{\rm log}_{10}(\gamma_e)\,	-2.308	-1.184	-0.384

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.891	-2.015	-0.823
{\rm log}_{10}(\tau_{AGN})\,	1.153	1.613	1.976

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.632	-0.343	-0.139
0.03-0.10 Gyr	-0.009	0.302	0.570
0.10-0.32 Gyr	-0.114	0.163	0.384
0.32-1.04 Gyr	-0.556	-0.207	0.019
1.04-3.35 Gyr	-0.639	-0.344	-0.134
3.35-10.78 Gyr	-0.618	-0.363	-0.179
10.78-11.98 Gyr	-0.744	-0.282	0.146