2025gu

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Information

Transient

Name: AT2025gu
Right ascension: 22h14m38.58s
Declination: 32d39m43.51s
Discovery Date: Jan. 6, 2025, 2:17 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.069

Host

Name: 2025gu
Right ascension: 22h14m38.60s
Declination: 32d39m42.79s
Redshift: 0.021808
Photometric Redshift: 0.032

Processing Status

Task Name	Status	Time taken (s)
Host match	processed	2.07
Cutout download	processed	2.34
Global aperture construction	processed	0.59
Local aperture photometry	processed	3.26
Global aperture photometry	processed	3.35
Validate local photometry	processed	0.02
Validate global photometry	processed	9.66
Host information	processed	0.08
Global host SED inference	processed	566.94
Local host SED inference	processed	486.04
Transient information	processed	0.0
Transient MWEBV	processed	0.04
Host MWEBV	processed	0.04
Log transient processing status	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) = 22h14m38.58s, 32d39m43.51s
semi major axis, semi minor axis (arcsec) = 4.54, 4.54
angle (degrees, anti-clockwise from east) = 0.0

Filter	Flux ${\rm (\mu Jy)}$	Flux error ${\rm (\mu Jy)}$	Mag	Mag error	Mag sys
PanSTARRS_g	1586.25	1.37	15.899	0.001	AB
PanSTARRS_r	3392.2	1.78	15.074	0.001	AB
PanSTARRS_i	4952.3	1.82	14.663	0.000	AB
PanSTARRS_z	6221.87	4.12	14.415	0.001	AB
PanSTARRS_y	7776.89	11.08	14.173	0.002	AB
2MASS_J	9335.17	119.77	13.080	0.014	Vega
2MASS_H	11399.96	190.5	12.390	0.018	Vega
2MASS_K	9853.86	192.87	12.078	0.021	Vega

Aperture details

RA, DEC (J2000) = 22h14m38.61s, 32d39m42.84s
semi major axis, semi minor axis (arcsec) = 18.36, 9.26
angle (degrees, anti-clockwise from east) = -45.22

Filter	Flux ${\rm (\mu Jy)}$	Flux error ${\rm (\mu Jy)}$	Mag	Mag error	Mag sys
PanSTARRS_g	2750.02	3.13	15.302	0.001	AB
PanSTARRS_r	5758.26	3.83	14.499	0.001	AB
PanSTARRS_i	8272.74	4.22	14.106	0.001	AB
PanSTARRS_z	10282.94	10.26	13.870	0.001	AB
PanSTARRS_y	13208.6	30.68	13.598	0.003	AB
2MASS_J	16610.99	377.0	12.454	0.025	Vega
2MASS_H	19766.69	606.22	11.793	0.033	Vega
2MASS_K	16491.67	618.17	11.519	0.041	Vega
WISE_W1	8121.05	58.66	11.427	0.008	Vega
WISE_W2	4502.17	62.24	11.427	0.015	Vega
WISE_W3	3079.12	210.7	10.005	0.074	Vega
WISE_W4	2374.17	1186.11	8.841	0.542	Vega

Imaging data

Spectral Energy Distribution

Host SED inference

Local parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
${\rm log}_{10}(M_{\ast}/M_{\odot})\,$	9.919	10.120	10.276
${\rm log}_{10}({\rm SFR})$	-0.922	-0.173	0.481
${\rm log}_{10}({\rm sSFR})$	-11.115	-10.336	-9.477
${\rm stellar\ age}$	4.500	6.787	8.380

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
${\rm log}_{10}(Z_{\ast}/Z_{\odot})$	-1.250	-0.649	-0.265
${\rm log}_{10}(Z_{gas}/Z_{\odot})\,$	-1.499	-0.081	0.251

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
$\tau_2$	0.640	0.919	1.188
$\delta$	-0.783	-0.579	-0.198
$\tau_1/\tau_2$	0.658	0.986	1.316
$Q_{PAH}$	0.399	2.250	5.367
$U_{min}$	2.527	7.285	14.326
${\rm log}_{10}(\gamma_e)\,$	-3.212	-1.900	-1.185

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
${\rm log}_{10}(f_{AGN})\,$	-4.545	-3.509	-1.448
${\rm log}_{10}(\tau_{AGN})\,$	0.983	1.415	1.914

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.720	-0.108	0.216
0.03-0.10 Gyr	-1.249	-0.223	0.578
0.10-0.33 Gyr	-1.151	-0.111	0.457
0.33-1.10 Gyr	-0.893	0.031	0.411
1.10-3.65 Gyr	-0.398	0.163	0.440
3.65-12.12 Gyr	-0.465	0.112	0.390
12.12-13.47 Gyr	-0.596	0.174	0.737

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
${\rm log}_{10}(M_{\ast}/M_{\odot})\,$	10.405	10.493	10.598
${\rm log}_{10}({\rm SFR})$	-3.491	-1.586	-0.173
${\rm log}_{10}({\rm sSFR})$	-13.950	-12.071	-10.576
${\rm stellar\ age}$	7.885	9.806	12.740

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
${\rm log}_{10}(Z_{\ast}/Z_{\odot})$	-0.560	-0.388	-0.246
${\rm log}_{10}(Z_{gas}/Z_{\odot})\,$	-1.518	-0.302	0.302

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
$\tau_2$	0.129	0.253	0.460
$\delta$	-0.807	-0.442	0.018
$\tau_1/\tau_2$	0.380	0.796	1.273
$Q_{PAH}$	0.161	0.601	1.897
$U_{min}$	3.316	8.423	16.211
${\rm log}_{10}(\gamma_e)\,$	-3.495	-2.078	-0.984

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
${\rm log}_{10}(f_{AGN})\,$	-4.638	-3.978	-3.110
${\rm log}_{10}(\tau_{AGN})\,$	1.072	1.622	1.968

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-4.027	-1.489	-0.349
0.03-0.10 Gyr	-4.776	-1.905	-0.148
0.10-0.33 Gyr	-5.276	-2.114	-0.330
0.33-1.10 Gyr	-4.738	-2.000	-0.505
1.10-3.65 Gyr	-3.304	-1.105	0.085
3.65-12.12 Gyr	-1.496	0.422	0.699
12.12-13.47 Gyr	0.259	1.218	1.712