2025ctb

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Information

Transient

Name: AT2025ctb
Right ascension: 15h39m54.27s
Declination: 17d33m24.62s
Discovery Date: Feb. 21, 2025, 12:37 p.m.
Classification: None
Redshift: None
MW E(B-V): 0.030

Host

Name: 2025ctb
Right ascension: 15h39m54.39s
Declination: 17d33m24.12s
Redshift: None
Photometric Redshift: 0.118

Processing Status

Task Name	Status	Time taken (s)	Warning Flag
Host match	processed	2.41
Cutout download	processed	20.17
Global aperture construction	processed	0.58
Local aperture photometry	processed	6.12
Global aperture photometry	processed	6.7
Validate local photometry	processed	0.03
Validate global photometry	processed	19.94
Host information	processed	0.08
Global host SED inference	processed	366.62
Local host SED inference	not enough filters	17.96
Transient information	processed	0.0
Transient MWEBV	processed	0.04
Host MWEBV	processed	0.05
Processing status	blocked	N/A	N/A

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) = 15h39m54.27s, 17d33m24.62s
semi major axis, semi minor axis (arcsec) = 0.94, 0.94
angle (degrees, anti-clockwise from east) = 0.0

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
DES_z	29.19	1.12	20.237	0.041	AB

Aperture details

RA, DEC (J2000) = 15h39m54.37s, 17d33m24.27s
semi major axis, semi minor axis (arcsec) = 5.27, 4.14
angle (degrees, anti-clockwise from east) = -135.79

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	13.29	3.73	21.091	0.304	AB
GALEX_NUV	17.75	3.13	20.777	0.192	AB
SDSS_u	32.71	4.05	20.113	0.134	AB
SDSS_g	128.8	3.36	18.625	0.028	AB
DES_g	141.47	0.74	18.523	0.006	AB
PanSTARRS_g	151.49	1.52	18.449	0.011	AB
SDSS_r	245.85	4.45	17.923	0.020	AB
PanSTARRS_r	250.45	1.35	17.903	0.006	AB
DES_r	260.07	1.46	17.862	0.006	AB
SDSS_i	332.66	6.19	17.595	0.020	AB
PanSTARRS_i	328.48	1.17	17.609	0.004	AB
PanSTARRS_z	377.23	2.79	17.458	0.008	AB
SDSS_z	475.33	13.88	17.208	0.032	AB
DES_z	404.29	4.2	17.383	0.011	AB
PanSTARRS_y	431.71	6.98	17.312	0.018	AB
2MASS_J	451.36	115.97	16.369	0.279	Vega
2MASS_H	611.22	198.2	15.567	0.352	Vega
2MASS_K	874.57	221.87	14.708	0.275	Vega
WISE_W1	291.65	11.9	15.039	0.044	Vega
WISE_W2	212.99	17.2	14.740	0.088	Vega
WISE_W3	783.11	55.24	11.491	0.077	Vega
WISE_W4	122.32	279.38	12.061	2.480	Vega

Imaging data

Spectral Energy Distribution

Host SED inference

Local parameter details

Documentation

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	10.245	10.289	10.337
{\rm log}_{10}({\rm SFR})	-0.233	-0.016	0.208
{\rm log}_{10}({\rm sSFR})	-10.518	-10.299	-10.065
{\rm stellar\ age}	5.778	6.492	7.287

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.789	-0.548	-0.334
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.342	-0.778	-0.183

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.122	0.205	0.335
\delta	-0.634	-0.276	0.043
\tau_1/\tau_2	0.780	1.075	1.366
Q_{PAH}	0.921	2.242	3.978
U_{min}	2.699	7.749	14.433
{\rm log}_{10}(\gamma_e)\,	-2.513	-1.412	-0.557

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.305	-1.744	-1.170
{\rm log}_{10}(\tau_{AGN})\,	1.145	1.552	1.905

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.258	-0.086	0.058
0.03-0.10 Gyr	-0.286	0.009	0.291
0.10-0.32 Gyr	-0.028	0.229	0.447
0.32-1.05 Gyr	0.090	0.313	0.480
1.05-3.40 Gyr	0.132	0.354	0.528
3.40-11.02 Gyr	0.306	0.437	0.528
11.02-12.24 Gyr	0.030	0.462	0.837