2025ssr

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Information

Transient

Name: AT2025ssr
Right ascension: 16h39m21.13s
Declination: 33d39m44.38s
Discovery Date: July 25, 2025, 8:29 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.020

Host

Name:
Right ascension: 16h39m21.16s
Declination: 33d39m47.88s
Redshift: None
Photometric Redshift: 0.164

Processing Status: blocked

Task Name	Status	Time taken (s)
Cutout download	processed	23.76
Transient MWEBV	processed	0.04
Host match	processed	6.43
Host information	processed	0.14
Host MWEBV	processed	0.04
Global aperture construction	processed	0.65
Global aperture photometry	processed	5.35
Validate global photometry	processed	14.29
Global host SED inference	processed	391.22
Local aperture photometry	processed	5.83
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) = 16h39m21.13s, 33d39m44.38s
semi major axis, semi minor axis (arcsec) = 0.71, 0.71
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) = 16h39m21.17s, 33d39m48.39s
semi major axis, semi minor axis (arcsec) = 5.56, 2.92
angle (degrees, anti-clockwise from east) = -164.16

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	2.12	0.46	23.085	0.238	AB
GALEX_NUV	4.16	0.45	22.352	0.118	AB
DES_g	37.08	0.38	19.977	0.011	AB
PanSTARRS_g	40.5	0.86	19.881	0.023	AB
PanSTARRS_r	98.73	1.1	18.914	0.012	AB
DES_r	105.93	1.5	18.837	0.015	AB
PanSTARRS_i	155.3	1.06	18.422	0.007	AB
PanSTARRS_z	205.61	2.38	18.117	0.013	AB
DES_z	226.75	3.85	18.011	0.018	AB
PanSTARRS_y	246.87	6.87	17.919	0.030	AB
2MASS_J	625.61	104.03	16.014	0.181	Vega
2MASS_H	483.17	160.53	15.822	0.361	Vega
2MASS_K	778.56	186.32	14.834	0.260	Vega
WISE_W1	309.72	11.61	14.974	0.041	Vega
WISE_W2	240.04	13.4	14.610	0.061	Vega
WISE_W3	300.38	48.2	12.532	0.174	Vega
WISE_W4	672.31	372.91	10.211	0.602	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})\,	10.657	10.707	10.768
{\rm log}_{10}({\rm SFR})	-0.064	0.194	0.473
{\rm log}_{10}({\rm sSFR})	-10.814	-10.517	-10.250
{\rm stellar\ age}	6.969	7.907	10.413

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.351	-0.089	0.086
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.409	-0.815	-0.168

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.491	0.649	0.849
\delta	-0.186	0.003	0.153
\tau_1/\tau_2	0.670	0.981	1.337
Q_{PAH}	0.542	1.595	3.399
U_{min}	3.017	7.758	14.593
{\rm log}_{10}(\gamma_e)\,	-3.001	-2.138	-1.196

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.882	-2.332	-1.459
{\rm log}_{10}(\tau_{AGN})\,	0.936	1.335	1.821

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	0.146	0.387	0.626
0.03-0.10 Gyr	-0.477	0.058	0.427
0.10-0.32 Gyr	-0.946	-0.255	0.125
0.32-1.03 Gyr	-1.249	-0.412	0.006
1.03-3.29 Gyr	-0.900	-0.079	0.405
3.29-10.53 Gyr	0.166	0.873	0.990
10.53-11.70 Gyr	0.758	1.321	1.879