AT 2019zhd
RA/DEC (2000)
00:40:37.905 +40:34:52.85
10.157938 +40.581346225
Type
---
Redshift
0
Reporting Group
None
Discovering Data Source
None
Discovery Date
2019-12-14 02:20:06.000
TNS AT
Y
Public
Y
Host Name
M31
Discovery Mag
20.35
Filter
r-ZTF
Reporter/s
Anna Ho (Caltech)

Spectra

 AT_2019zhd - 2020-02-14 09:36:00 Other / Other (None)z=
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Show Tellurics 
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   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
61292020-02-14 09:36:00Other / Other600Kawabata,YamanakaKawabataNone tns_2019zhd_2458893.9_Other_Other.datObjectSeimei 3.8m - KOOLS
Light Curves
FilterTel / InstObs-date rangePhotometry
g-ZTFP48_ZTF-Cam2019-12-21 03:13:51 - 2019-12-21 03:13:511
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
1121722019-12-21 03:13:5119.5169ABMagg-ZTFP48_ZTF-Cam30[Last non detection]
r-ZTFP48_ZTF-Cam2019-12-13 06:47:22 - 2020-01-01 01:55:394
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
1121742020-01-01 01:55:3919.560.1420.53ABMagr-ZTFP48_ZTF-Cam30
1121732019-12-29 02:45:2419.760.1120.73ABMagr-ZTFP48_ZTF-Cam30
1102592019-12-14 02:20:0620.350.24ABMagr-ZTFP48_ZTF-Cam
1102582019-12-13 06:47:2220.02ABMagr-ZTFP48_ZTF-Cam[Last non detection]
AT Reports
IDTime received (UT)SenderReporter/sReportting groupDisc. Data SourceRADECDiscovery date (UT)Discovery Mag.FilterRelated filesAT TypeInternal nameAssoc. GroupsEnd prop. periodRemarks
581552020-01-07 05:10:05ZTF_AMPEL_COMPLETEJ. Nordin, V. Brinnel, M. Giomi, J. van Santen (HU Berlin), A. Gal-Yam, O. Yaron, S. Schulze (Weizmann) on behalf of ZTFZTFZTF00:40:37.905+40:34:52.852019-12-29 02:45:24.00019.76r-ZTFPSNZTF19adakuotZTFSee arXiv:1904.05922 for selection criteria.
570862019-12-30 03:34:39annayqhoAnna Ho (Caltech)00:40:37.900+40:34:52.922019-12-14 02:20:06.00020.35r-ZTFPSNZTF19adakuot
Classification Reports
IDTime received (UT)SenderClassifier/sGroupClassificationRedshiftRelated filesAssoc. GroupsEnd prop. periodRemarksADS Bibcode
61212020-02-14 13:13:47kabatamihoMiho KawabataNoneOther0The spectrum shows the strong emission lines of H-alpha and H-beta with the blue continuum. The FWHM of the H-alpha is measured to be around 1000km/s. The emission line peaks of H-alpha and H-beta are blueshifted to 400-500km/s, which is consistent with the helioncetric velocity of M31 within error. These features are possibly similar to that of the luminous blue variable, while the spectrum cannot be distinguished from the luminous red nova.2020TNSCR.499....1K

Comments

Object coordinates updated according to AT-report 58155 of Group ZTF
Previous RA, DEC: 00:40:37.900, +40:34:52.92 (10.157917, +40.581366)
Updated RA, DEC: 00:40:37.905, +40:34:52.85 (10.157938, 40.581346225)