2026cos results

2026cos results

Information

Transient

Name:	`AT2026cos`
Right ascension:	`9h48m11.20s`
Declination:	`24d56m35.37s`
Discovery Date:	`Feb. 9, 2026, 6:46 a.m.`
Classification:	`None`
Redshift:	`None`
MW E(B-V):	`0.024`

Host

Name:	`1720742`
Right ascension:	`9h48m11.28s`
Declination:	`24d56m30.56s`
Redshift:	`None`
Photometric Redshift:	`0.108`

Cutout Download Report

Downloaded	Unavailable
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_z	DES_i DES_Y

Processing Status: blocked

Task Name	Status	Time (s)
Cutout download	processed	17.07
Transient MWEBV	processed	0.03
Host match	processed	3.58
Host information	processed	0.11
Host MWEBV	processed	0.03
Global aperture construction	processed	0.62
Global aperture photometry	processed	6.92
Validate global photometry	processed	17.16
Global host SED inference	processed	385.45
Local aperture photometry	processed	6.24
Validate local photometry	processed	0.03
Local host SED inference	not enough filters	17.09

Imaging data

Spectral Energy Distribution

Aperture Photometry

Aperture details

RA, DEC (J2000):	9h48m11.20s, 24d56m35.37s
semi major axis, semi minor axis (arcsec):	1.02, 1.02
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	19.69	1.54	20.664	0.085	AB

Aperture details

RA, DEC (J2000):	9h48m11.30s, 24d56m31.36s
semi major axis, semi minor axis (arcsec):	11.83, 6.69
angle (degrees, anti-clockwise from east):	-9.91

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	29.34	3.91	20.232	0.145	AB
GALEX_NUV	51.01	3.2	19.631	0.068	AB
SDSS_u	71.8	6.11	19.260	0.092	AB
SDSS_g	325.07	5.24	17.620	0.018	AB
PanSTARRS_g	351.28	2.0	17.536	0.006	AB
SDSS_r	548.86	7.3	17.051	0.014	AB
PanSTARRS_r	535.37	2.57	17.078	0.005	AB
DES_r	603.63	2.58	16.948	0.005	AB
SDSS_i	769.41	10.57	16.685	0.015	AB
SDSS_z	1025.54	29.19	16.373	0.031	AB
DES_z	919.24	10.79	16.491	0.013	AB
WISE_W1	639.79	21.51	14.186	0.037	Vega
WISE_W2	432.09	25.37	13.972	0.064	Vega
WISE_W3	1311.4	119.47	10.932	0.099	Vega
WISE_W4	1584.73	655.34	9.280	0.449	Vega

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})\,	10.541	10.588	10.646
{\rm log}_{10}({\rm SFR})	0.138	0.365	0.591
{\rm log}_{10}({\rm sSFR})	-10.476	-10.226	-9.988
{\rm stellar\ age}	6.121	6.824	8.047

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.676	-0.454	-0.267
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.618	-0.079	0.302

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.106	0.192	0.337
\delta	-0.443	-0.045	0.178
\tau_1/\tau_2	0.755	1.108	1.459
Q_{PAH}	0.581	1.953	4.382
U_{min}	2.672	7.384	14.791
{\rm log}_{10}(\gamma_e)\,	-2.578	-1.499	-0.746

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.990	-2.701	-1.643
{\rm log}_{10}(\tau_{AGN})\,	1.198	1.705	1.991

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.277	0.090	0.299
0.03-0.10 Gyr	0.118	0.443	0.720
0.10-0.32 Gyr	0.381	0.623	0.860
0.32-1.05 Gyr	0.311	0.539	0.701
1.05-3.42 Gyr	0.283	0.545	0.736
3.42-11.12 Gyr	0.561	0.723	0.823
11.12-12.36 Gyr	0.394	0.849	1.335