2025sam

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Information

Transient

Name: AT2025sam
Right ascension: 2h41m04.47s
Declination: -25d03m10.88s
Discovery Date: July 24, 2025, 4:42 p.m.
Classification: None
Redshift: None
MW E(B-V): 0.020

Host

Name:
Right ascension: 2h41m04.09s
Declination: -25d03m15.81s
Redshift: None
Photometric Redshift: 0.123

Processing Status: blocked

Task Name	Status	Time taken (s)
Cutout download	processed	15.28
Transient MWEBV	processed	0.05
Host match	processed	7.56
Host information	processed	0.14
Host MWEBV	processed	0.05
Global aperture construction	processed	0.65
Global aperture photometry	processed	5.41
Validate global photometry	processed	15.09
Global host SED inference	processed	389.73
Local aperture photometry	processed	6.02
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) = 2h41m04.47s, -25d03m10.88s
semi major axis, semi minor axis (arcsec) = 0.91, 0.91
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) = 2h41m04.06s, -25d03m15.58s
semi major axis, semi minor axis (arcsec) = 10.5, 7.61
angle (degrees, anti-clockwise from east) = -128.66

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	20.44	3.39	20.624	0.180	AB
GALEX_NUV	40.07	2.9	19.893	0.079	AB
DES_g	324.97	0.66	17.620	0.002	AB
PanSTARRS_g	345.77	2.05	17.553	0.006	AB
PanSTARRS_r	611.45	3.37	16.934	0.006	AB
DES_r	617.87	1.04	16.923	0.002	AB
PanSTARRS_i	786.14	3.18	16.661	0.004	AB
PanSTARRS_z	950.76	6.19	16.455	0.007	AB
DES_z	991.26	3.76	16.410	0.004	AB
PanSTARRS_y	1258.53	13.94	16.150	0.012	AB
2MASS_J	1654.33	239.19	14.959	0.157	Vega
2MASS_H	1769.0	394.99	14.413	0.242	Vega
2MASS_K	1547.49	429.53	14.088	0.301	Vega
WISE_W1	892.9	16.89	13.824	0.021	Vega
WISE_W3	1216.58	76.67	11.013	0.068	Vega
WISE_W4	620.18	426.61	10.299	0.747	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})\,	10.788	10.829	10.870
{\rm log}_{10}({\rm SFR})	0.485	0.679	0.873
{\rm log}_{10}({\rm sSFR})	-10.362	-10.168	-9.954
{\rm stellar\ age}	6.367	6.978	8.031

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.120	0.002	0.100
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-0.889	-0.471	-0.196

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.135	0.182	0.271
\delta	-0.887	-0.654	-0.328
\tau_1/\tau_2	0.872	1.183	1.484
Q_{PAH}	0.399	1.356	3.011
U_{min}	2.421	6.930	12.820
{\rm log}_{10}(\gamma_e)\,	-3.118	-2.021	-1.397

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-4.406	-3.442	-2.102
{\rm log}_{10}(\tau_{AGN})\,	1.020	1.487	1.882

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	0.374	0.530	0.658
0.03-0.10 Gyr	0.485	0.741	0.971
0.10-0.32 Gyr	0.576	0.762	0.937
0.32-1.05 Gyr	0.379	0.626	0.809
1.05-3.39 Gyr	0.425	0.709	0.902
3.39-10.96 Gyr	0.848	0.998	1.081
10.96-12.18 Gyr	0.670	1.122	1.545