AT 2019sgf
RA/DEC (2000)
06:18:01.452 +22:22:29.06
94.50605 +22.37474
Type
CV
Redshift
Source Group
ASAS-SN
Discovery Date
2019-10-07 13:12:00
TNS AT
Y
Public
Y
Discovery Mag
15.7
Filter
g-Sloan
Discoverer/s
K. Z. Stanek, C. S. Kochanek, for the ASAS-SN team

Spectra

 AT_2019sgf - 2019-10-10 09:31:56 MDM-2.4 / BC-OSU (None)z=
Show H at z=vexp= km/s
Show He at z=vexp= km/s
Show He II at z=vexp= km/s
Show O at z=vexp= km/s
Show [O I] at z=vexp= km/s
Show O II at z=vexp= km/s
Show [O II] at z=vexp= km/s
Show [O III] at z=vexp= km/s
Show Na at z=vexp= km/s
Show Mg at z=vexp= km/s
Show Mg II at z=vexp= km/s
Show Si II at z=vexp= km/s
Show S II at z=vexp= km/s
Show Ca II at z=vexp= km/s
Show [Ca II] at z=vexp= km/s
Show Fe II at z=vexp= km/s
Show Fe III at z=vexp= km/s
Show Å at z=vexp= km/s
Show Å at z=vexp= km/s
Show Tellurics 
Show Galaxy lines at z=
Show WR-WN at z=vexp= km/s
Show WR-WC/O at z=vexp= km/s
   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),
Spectra
SelectIDObs-date (UT)Tel / InstExp-TimeObserver/sReducer/sGroupSpectrum ascii fileSpectrum fits fileSpec. TypeAssoc. GroupsEnd prop. periodRemarks
52942019-10-10 09:31:56MDM-2.4 / BC-OSURupertNone tns_2019sgf_2019-10-10_09-31-56_MDM-2.4_BC-OSU.txtObjectThe spectrum is dominated by Balmer and He I lines. Halpha and Hbeta show a narrow emission on top of an absorption, typical for a dwarf nova outburst. We also identify He II 4686 in emission which indicates that the progenitor system might be a magnetic CV, consistent with the conclusions from ATels 13176 and 13190.
Light Curves
FilterTel / InstObs-date rangePhotometry
g-SloanASASSN-1_Brutus2019-10-05 13:12:00 - 2019-10-07 13:12:002
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
939982019-10-07 13:12:0015.7ABMagg-SloanASASSN-1_Brutus
939972019-10-05 13:12:0018.3ABMagg-SloanASASSN-1_Brutus[Last non detection]
AT Reportings
IDTime received (UT)SenderReporter/s (Discoverer/s)GroupRADECDiscovery date (UT)Discovery Mag.FilterRelated filesAT TypeInternal nameAssoc. GroupsEnd prop. periodRemarks
490012019-10-08 15:28:09KZStanekK. Z. Stanek, C. S. Kochanek, for the ASAS-SN teamASAS-SN06:18:01.452+22:22:29.062019-10-07 13:12:0015.7g-SloanPNVASASSN-19ytASAS-SNPresent in several epochs, a bright transient on the rise, near the Galactic plane, so could be a Nova or a CV
Classification Reportings
IDTime received (UT)SenderClassifier/sGroupClassificationRedshiftRelated filesAssoc. GroupsEnd prop. periodRemarks
52862019-10-15 15:48:30kawashadAdam KawashNoneCVSpectrum is that of a dwarf nova in outburst and suggests the progenitor system be a magnetic CV, consistent with the conclusions from ATels 13176 and 13190.