2025ppa

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Information

Transient

Name: AT2025ppa
Right ascension: 4h51m29.91s
Declination: -23d53m36.72s
Discovery Date: June 30, 2025, 3:57 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.029

Host

Name: 134177
Right ascension: 4h51m30.47s
Declination: -23d53m33.57s
Redshift: 0.040471
Photometric Redshift:

Processing Status: completed

Task Name	Status	Time taken (s)
Cutout download	processed	11.24
Transient MWEBV	processed	0.04
Host match	processed	4.57
Host information	processed	0.21
Host MWEBV	processed	0.04
Global aperture construction	processed	0.65
Global aperture photometry	processed	4.79
Validate global photometry	processed	13.33
Global host SED inference	processed	424.24
Local aperture photometry	processed	5.49
Validate local photometry	processed	0.02
Local host SED inference	processed	427.66

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) = 4h51m29.91s, -23d53m36.72s
semi major axis, semi minor axis (arcsec) = 2.5, 2.5
angle (degrees, anti-clockwise from east) = 0.0

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
DES_g	73.27	0.3	19.238	0.004	AB
PanSTARRS_g	77.49	0.56	19.177	0.008	AB
PanSTARRS_r	130.2	0.88	18.613	0.007	AB
DES_r	131.41	0.39	18.603	0.003	AB
PanSTARRS_i	170.97	0.97	18.318	0.006	AB
PanSTARRS_z	196.04	2.54	18.169	0.014	AB
DES_z	203.96	1.51	18.126	0.008	AB
PanSTARRS_y	257.49	4.06	17.873	0.017	AB

Aperture details

RA, DEC (J2000) = 4h51m30.48s, -23d53m33.66s
semi major axis, semi minor axis (arcsec) = 20.04, 18.13
angle (degrees, anti-clockwise from east) = -71.7

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_NUV	273.23	7.9	17.809	0.031	AB
DES_g	3957.75	2.19	14.906	0.001	AB
PanSTARRS_g	4006.92	4.27	14.893	0.001	AB
DES_r	7337.84	2.9	14.236	0.000	AB
DES_z	11393.94	11.31	13.758	0.001	AB
WISE_W1	7764.33	50.75	11.476	0.007	Vega
WISE_W3	20641.37	213.44	7.939	0.011	Vega
WISE_W4	57984.19	2007.74	5.372	0.038	Vega

Imaging data

Click the image to load the interactive plot.

Spectral Energy Distribution

Click the image to load the interactive plot.

Host SED inference

Local parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	9.021	9.177	9.303
{\rm log}_{10}({\rm SFR})	-1.543	-0.956	-0.475
{\rm log}_{10}({\rm sSFR})	-10.722	-10.137	-9.561
{\rm stellar\ age}	4.766	7.202	9.374

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.642	-1.150	-0.617
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.168	-0.050	0.324

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.362	0.792	1.084
\delta	-0.465	-0.093	0.217
\tau_1/\tau_2	0.715	1.046	1.411
Q_{PAH}	0.743	2.064	4.128
U_{min}	2.547	7.573	14.559
{\rm log}_{10}(\gamma_e)\,	-3.101	-1.941	-0.904

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.799	-1.691	-0.688
{\rm log}_{10}(\tau_{AGN})\,	0.965	1.477	1.939

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-1.558	-1.062	-0.740
0.03-0.10 Gyr	-1.772	-0.941	-0.384
0.10-0.33 Gyr	-1.773	-0.981	-0.454
0.33-1.09 Gyr	-1.871	-1.054	-0.517
1.09-3.60 Gyr	-1.773	-0.940	-0.608
3.60-11.89 Gyr	-1.446	-0.817	-0.579
11.89-13.21 Gyr	-1.380	-0.643	0.049

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	10.751	10.852	10.942
{\rm log}_{10}({\rm SFR})	-0.029	0.542	1.073
{\rm log}_{10}({\rm sSFR})	-10.905	-10.301	-9.719
{\rm stellar\ age}	6.423	7.687	9.459

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.034	-0.667	-0.415
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.849	-1.451	0.034

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.232	0.404	0.623
\delta	-0.739	-0.388	-0.026
\tau_1/\tau_2	0.562	0.962	1.357
Q_{PAH}	0.238	0.921	2.561
U_{min}	3.305	8.602	15.667
{\rm log}_{10}(\gamma_e)\,	-2.870	-1.802	-1.028

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-4.119	-2.183	-1.406
{\rm log}_{10}(\tau_{AGN})\,	1.041	1.446	1.930

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	0.105	0.534	0.851
0.03-0.10 Gyr	-0.658	0.493	1.164
0.10-0.33 Gyr	-0.779	0.338	0.900
0.33-1.09 Gyr	-0.740	0.311	0.764
1.09-3.60 Gyr	-0.197	0.655	0.994
3.60-11.89 Gyr	0.581	0.958	1.116
11.89-13.21 Gyr	0.450	1.064	1.689