2026but

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Information

Transient

Name: AT2026but
Right ascension: 11h31m02.24s
Declination: 22d15m11.94s
Discovery Date: Jan. 18, 2026, 11:26 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.016

Host

Name:
Right ascension: 11h31m02.22s
Declination: 22d15m11.53s
Redshift: None
Photometric Redshift: 0.162

Processing Status: blocked

Task Name	Status	Time taken (s)
Cutout download	processed	18.38
Transient MWEBV	processed	0.05
Host match	processed	5.94
Host information	processed	0.12
Host MWEBV	processed	0.1
Global aperture construction	processed	2.65
Global aperture photometry	processed	6.29
Validate global photometry	processed	17.57
Global host SED inference	processed	559.77
Local aperture photometry	processed	6.05
Validate local photometry	no valid phot	0.03
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) = 11h31m02.24s, 22d15m11.94s
semi major axis, semi minor axis (arcsec) = 0.72, 0.72
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) = 11h31m02.22s, 22d15m11.46s
semi major axis, semi minor axis (arcsec) = 3.63, 1.48
angle (degrees, anti-clockwise from east) = -38.86

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_NUV	1.94	1.49	23.179	0.835	AB
SDSS_u	2.92	2.13	22.736	0.792	AB
SDSS_g	5.4	0.92	22.070	0.186	AB
DES_g	5.14	0.23	22.123	0.049	AB
PanSTARRS_g	6.27	0.61	21.907	0.105	AB
SDSS_r	4.87	1.19	22.181	0.265	AB
PanSTARRS_r	6.59	0.58	21.852	0.096	AB
DES_r	6.51	0.44	21.866	0.074	AB
SDSS_i	9.69	1.64	21.434	0.183	AB
PanSTARRS_i	5.41	0.82	22.066	0.164	AB
PanSTARRS_z	6.97	1.34	21.792	0.208	AB
SDSS_z	-1.53	7.68			AB
DES_z	9.08	0.98	21.505	0.117	AB
PanSTARRS_y	2.62	2.79	22.856	1.159	AB
2MASS_J	137.6	73.41	17.659	0.579	Vega
2MASS_H	31.95	117.97	18.771	4.009	Vega
2MASS_K	-116.79	115.75			Vega
WISE_W1	-6.93	7.32			Vega
WISE_W2	-1.19	10.07			Vega
WISE_W3	37.25	52.55	14.798	1.531	Vega
WISE_W4	-189.05	379.75			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})\,	8.244	8.559	8.832
{\rm log}_{10}({\rm SFR})	-1.248	0.072	0.748
{\rm log}_{10}({\rm sSFR})	-9.977	-8.301	-7.914
{\rm stellar\ age}	0.066	0.211	2.630

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.688	-1.073	-0.146
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.330	-0.572	0.059

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.315	0.900	1.726
\delta	-0.429	0.048	0.253
\tau_1/\tau_2	0.461	0.972	1.528
Q_{PAH}	1.524	3.851	5.815
U_{min}	4.386	11.544	19.130
{\rm log}_{10}(\gamma_e)\,	-2.970	-1.954	-0.662

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-2.900	-0.584	0.213
{\rm log}_{10}(\tau_{AGN})\,	1.069	1.476	1.807

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-3.786	-1.879	-0.628
0.03-0.10 Gyr	-1.276	0.212	0.907
0.10-0.32 Gyr	-2.735	-0.632	0.183
0.32-1.03 Gyr	-5.420	-2.978	-0.842
1.03-3.29 Gyr	-8.272	-4.892	-1.675
3.29-10.55 Gyr	-9.405	-5.548	-1.933
10.55-11.73 Gyr	-9.753	-5.159	-1.746