AT 2017fro
RA/DEC ()
17:19:55.850 +41:40:49.48
259.982708 +41.680411
Type
AGN
Redshift
0.164
Source Group
ASAS-SN
Discovery Date
2017-07-27 08:38:24
TNS AT
Y
Public
Y
Host Name
SDSS J171955.84+414049.4
Discovery Mag
16.9
Filter
V-Johnson
Discoverer/s
K. Z. Stanek, for the ASAS-SN team

Spectra

 AT_2017fro - 2017-08-19 08:57:19 FTN / FLOYDS-N (Global SN Project)z=
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   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),0 (observed)
Spectra
SelectIDObs-date (UT)Tel / InstExp-TimeObserver/sReducer/sGroupSpectrum ascii fileSpectrum fits fileSpec. TypeAssoc. GroupsEnd prop. periodRemarks
11592017-08-19 08:57:19FTN / FLOYDS-N3600Las Cumbres ObservatoryCurtis McCullyGlobal SN Project tns_2017fro_2017-08-19_08-57-19_FTN_FLOYDS-N_Global_SN_Project.ascii tns_2017fro_2017-08-19_08-57-19_FTN_FLOYDS-N_Global_SN_Project.fitsObjectGlobal SN Project
Light Curves
FilterTel / InstObs-date rangePhotometry
V-JohnsonASASSN-1_Brutus2017-06-13 10:04:48 - 2017-07-27 08:38:242
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
189742017-07-27 08:38:2416.9VegaMagV-JohnsonASASSN-1_Brutus
189732017-06-13 10:04:4817.5VegaMagV-JohnsonASASSN-1_Brutus[Last non detection]
G-GaiaGaia_Gaia-photometric2017-04-30 05:21:07 - 2017-09-03 14:57:072
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
199942017-09-03 14:57:0716.680.2ABMagG-GaiaGaia_Gaia-photometric60Robot
199932017-04-30 05:21:0721.5ABMagG-GaiaGaia_Gaia-photometricRobot[Last non detection]
AT Reportings
IDTime received (UT)SenderReporter/s (Discoverer/s)GroupRADECDiscovery date (UT)Discovery Mag.FilterRelated filesAT TypeInternal nameAssoc. GroupsEnd prop. periodRemarks
133972017-09-04 16:05:37Gaia_Bot1A. Delgado, D. Harrison, S. Hodgkin, M. van Leeuwen, G. Rixon, A. Yoldas (University of Cambridge), on behalf of Gaia Alerts teamGaiaAlerts17:19:55.850+41:40:49.482017-09-03 14:57:0716.68G-GaiaOtherGaia17cffGaiaAlertsbright nuclear flare (aka AT2017fro found by ASASSN), near X-ray source 1RXS J171956.3+414048
127752017-07-27 18:25:41KZStanekK. Z. Stanek, for the ASAS-SN teamASAS-SN17:19:55.898+41:40:49.332017-07-27 08:38:2416.9V-JohnsonPSNASASSN-17jzASAS-SNIn several epochs
Classification Reportings
IDTime received (UT)SenderClassifier/sGroupClassificationRedshiftRelated filesAssoc. GroupsEnd prop. periodRemarks
11552017-08-24 17:06:04griffinI. Arcavi, C. McCully, G. Hosseinzadeh, D. A. Howell (Las Cumbres Obs./UCSB), S. Valenti (UC Davis), B. Trakhtenbrot (ETH)Global SN ProjectAGN0.164Global SN ProjectThe spectrum displays a blue continuum with strong ~1300 km/s wide Balmer lines at a redshift of 0.164. SNID (Blondin & Tonry 2007, ApJ, 666, 1024) also finds an excellent fit to an AGN at that redshift.

Comments

Object coordinates updated according to AT-report 13397 of Group GaiaAlerts
Previous RA, DEC: 17:19:55.898, +41:40:49.33 (259.98291, +41.68037)
Updated RA, DEC: 17:19:55.850, +41:40:49.48 (259.982708, 41.680411)