AT 2021dhg
RA/DEC (2000)
12:56:47.701 +21:38:52.75
194.1987521 +21.6479867
Type
Nova
Redshift
0.001361
Reporting Group
ALeRCE
Discovering Data Source
ZTF
Discovery Date
2021-02-15 09:38:42.000
TNS AT
Y
Public
Y
Host Name
MESSIER 064
Host Redshift
0.001361
Discovery Mag
20.1085
Filter
r-ZTF
Reporter/s
F. Forster, A. Mourao, F.E. Bauer, G. Pignata, A. Munoz-Arancibia, L. Hernandez-Garcia, L. Galbany, E. Camacho, J. Silva-Farfan, J. Arredondo, G. Cabrera-Vives, R. Carrasco-Davis, P.A. Estevez, P. Huijse, E. Reyes, I. Reyes, P. Sanchez-Saez, C. Valenzuela, E. Castillo, D. Ruz-Mieres, D. Rodriguez-Mancini, M. Catelan, S. Eyheramendy, M.J. Graham on behalf of the ALeRCE broker

Spectra

 AT_2021dhg - 2021-02-21 00:18:58 CMO-2.5m / TDS (None)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
90282021-02-21 00:18:58CMO-2.5m / TDSKirill AtapinAlexander DodinNone tns_2021dhg_2021-02-21_00-18-58_CMO-2.5m_TDS.txtObjectThe observations were performed with the Transient Double-beam Spectrograph mounted on the 2.5-m Telescope of the Caucasus Mountain Observatory (CMO)  
Light Curves
FilterTel / InstObs-date rangePhotometry
g-ZTFP48_ZTF-Cam2021-02-11 11:45:32 - 2021-02-18 08:36:312
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
1935662021-02-18 08:36:3119.14260.15926319.9989ABMagg-ZTFP48_ZTF-Cam30RobotData provided by ZTF
1935642021-02-11 11:45:3220.7493ABMagg-ZTFP48_ZTF-Cam30Robot[Last non detection] Data provided by ZTF
r-ZTFP48_ZTF-Cam2021-02-15 09:38:42 - 2021-02-18 11:03:482
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
1935672021-02-18 11:03:4819.05610.11919420.2085ABMagr-ZTFP48_ZTF-Cam30RobotData provided by ZTF
1935652021-02-15 09:38:4220.10850.19769920.2151ABMagr-ZTFP48_ZTF-Cam30RobotData provided by ZTF
AT Reports
IDTime received (UT)SenderReporter/sReportting groupDisc. Data SourceRADECDiscovery date (UT)Discovery Mag.FilterRelated filesAT TypeInternal nameAssoc. GroupsEnd prop. periodRemarks
999572021-02-19 15:36:25ALeRCEF. Forster, A. Mourao, F.E. Bauer, G. Pignata, A. Munoz-Arancibia, L. Hernandez-Garcia, L. Galbany, E. Camacho, J. Silva-Farfan, J. Arredondo, G. Cabrera-Vives, R. Carrasco-Davis, P.A. Estevez, P. Huijse, E. Reyes, I. Reyes, P. Sanchez-Saez, C. Valenzuela, E. Castillo, D. Ruz-Mieres, D. Rodriguez-Mancini, M. Catelan, S. Eyheramendy, M.J. Graham on behalf of the ALeRCE brokerALeRCEZTF12:56:47.701+21:38:52.752021-02-15 09:38:42.00020.1085r-ZTFPSNZTF21aalcrjhZTFEarly SN candidate (g-rise > 0.23+-0.02 mag/day, r-rise > 0.13+-0.05 mag/day) classified using ALeRCE's stamp classifier - see http://arxiv.org/abs/2008.03309 - and the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF21aalcrjh
Classification Reports
IDTime received (UT)SenderClassifier/sGroupClassificationRedshiftRelated filesAssoc. GroupsEnd prop. periodRemarksADS Bibcode
90182021-02-22 16:48:53pignataKirill Atapin, Seva Lander, Olga Voziakova, Alexander Dodin, Dmitry Tsvetkov, Niсolai Shatski, Alexander Belinski (SAI-MSU/CMO), E. Mason  (INAF-OATS ), A. Pastorello (INAF-OAPD)   G. Pignata (UNAB/MAS), L. Galbany, A. Mourao,  F. Forster, F.E. Bauer, A. Munoz-Arancibia, L. Hernandez-Garcia, , E. Camacho, J. Silva-Farfan, J. Arredondo, G. Cabrera-Vives, R. Carrasco-Davis, P.A. Estevez, P. Huijse, E. Reyes, I. Reyes, P. Sanchez-Saez, C. Valenzuela, E. Castillo, D. Ruz-Mieres, D. Rodriguez-Mancini, M. Catelan, S. Eyheramendy, M.J. GrahamNoneNova0.001361We note that taking into account expansion velocities and the slow rise of the light curve (combined with a luminous absolute magnitude), we cannot rule out a different classification for this object (for instance, a “gap transient” (Pastorello & Fraser, 2019).2021TNSCR.566....1A