RA/DEC (2000)
03:33:48.140 -19:29:44.52
53.450583 -19.4957
Type
SN IIn-pec
Redshift
0.007
Discovery ReportClassification Report
Related AstroNotes: 2021-306
Reporting Group
ZTF
Discovering Data Source
ZTF
Discovery Date
2021-11-14 06:33:54.720
TNS AT
Y
Public
Y
Discovery Mag
19.8345
Filter
g-ZTF
Reporter/s
K. De (Caltech) on behalf of ZTF
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2021aess - 2021-12-04 04:44:32 ESO-NTT / EFOSC2-NTT (ePESSTO+)z=
 ▌SN_2021aess - 2021-11-15 06:56:00 Lick-3m / KAST (UCSC)z=
▌Show H at z=vexp= km/s
▌Show He at z=vexp= km/s
▌Show He II at z=vexp= km/s
▌Show C II at z=vexp= km/s
▌Show C III at z=vexp= km/s
▌Show C IV at z=vexp= km/s
▌Show N II at z=vexp= km/s
▌Show N III at z=vexp= km/s
▌Show N IV at z=vexp= km/s
▌Show N V 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 O V at z=vexp= km/s
▌Show O VI 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 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
z-step:   v-step: 
   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),0 (observed)

Light curves

 ▌P48_ZTF-Cam_g
 ▌Gaia_Gaia-photometric_G
 ▌ATLAS-MLO_ATLAS-01_orange
 ▌ATLAS-HKO_ATLAS-02_orange
 ▌PS1_GPC1_w
   
Pointer position (MJD, Mag, Abs.Mag): (0.00, 0.00, 0.00)
Spectra
 ID Obs-date (UT) Tel / Inst Exp-Time Observer/s Reducer/s Group Spectrum ascii file Spectrum fits file Spec. Type Assoc. Groups End prop. period Remarks
11548 2021-12-04 04:44:32 ESO-NTT / EFOSC2-NTT 900 I. Seitenzahl, J. P. Anderson L. Galbany ePESSTO+ tns_2021aess_2021-12-04_04-44-32_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2021aess_2021-12-04_04-44-32_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object
11461 2021-11-15 06:56:00 Lick-3m / KAST 3000 D. O. Jones, M. J. Bustamante-Rosell K. W. Davis, M. J. Bustamante-Rosell UCSC tns_2021aess_2021-11-15_06-56-00_Lick-3m_KAST_UCSC.flm Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
g-ZTF P48_ZTF-Cam 2021-11-12 06:54:10 - 2021-11-14 06:33:55 2459530.78762 - 2459532.77355 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
254988 2021-11-14 06:33:55 2459532.77355 19.8345 19.4195 ABMag g-ZTF P48_ZTF-Cam 30 None
254987 2021-11-12 06:54:10 2459530.78762 19.7157 ABMag g-ZTF P48_ZTF-Cam 30 None [Last non detection]
G-Gaia Gaia_Gaia-photometric 2021-08-24 20:05:17 - 2021-12-21 13:53:46 2459451.337 - 2459570.079 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
258236 2021-12-21 13:53:46 2459570.079 18.71 0.2 ABMag G-Gaia Gaia_Gaia-photometric 60 Robot
258235 2021-08-24 20:05:17 2459451.337 21.5 ABMag G-Gaia Gaia_Gaia-photometric Robot [Last non detection]
orange-ATLAS ATLAS-MLO_ATLAS-01 2021-11-17 09:15:50 - 2021-11-17 09:15:50 2459535.886 - 2459535.886 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
255379 2021-11-17 09:15:50 2459535.886 17.98 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 30 Robot [Last non detection]
orange-ATLAS ATLAS-HKO_ATLAS-02 2021-11-19 09:12:58 - 2021-11-19 09:12:58 2459537.884 - 2459537.884 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
255380 2021-11-19 09:12:58 2459537.884 17.631 0.068 19.61 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 30 Robot
w-P1 PS1_GPC1 2021-10-02 13:01:53 - 2021-10-02 13:01:53 2459490.04297 - 2459490.04297 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
349024 2021-10-02 13:01:53 2459490.04297 21.35 0.11 22 ABMag w-P1 PS1_GPC1 45 Robot
AT Reports
ID Time received (UT) Sender Reporter/s Reporting group Disc. Data Source RA DEC Discovery date (UT) Discovery Mag. Filter Related files AT Type Host name Internal name Assoc. Groups End prop. period Remarks ADS Bibcode Unreal Auto classification
180625 2023-06-21 11:39:02 PS1_Bot1 K. C. Chambers, T. de Boer, J. Bulger et al. Pan-STARRS Pan-STARRS 03:33:48.131 -19:29:44.55 2021-10-02 13:01:52.608 21.35 w-P1 PSN PS23end Pan-STARRS N
131407 2021-12-23 10:49:36 Gaia_Bot1 S.T. Hodgkin, E. Breedt, A. Delgado et al. GaiaAlerts GaiaAlerts 03:33:48.140 -19:29:44.52 2021-12-21 13:53:45.600 18.71 G-Gaia PSN Gaia21frh GaiaAlerts Confirmed SN IIn pec N
129851 2021-11-19 12:30:03 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 03:33:48.143 -19:29:44.64 2021-11-19 09:12:57.600 17.631 orange-ATLAS PSN ATLAS21bmog ATLAS N
129665 2021-11-14 22:03:09 ZTF_CLU_PUBLIC K. De (Caltech) on behalf of ZTF ZTF ZTF 03:33:48.126 -19:29:44.63 2021-11-14 06:33:54.720 19.8345 g-ZTF PSN ZTF21acpkzcc ZTF 2021TNSTR3913....1D N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
11494 2021-12-04 17:45:22 ePESSTOplus_Bot1 I. Seitenzahl, J. P. Anderson, L. Galbany, R.J. Bruch on behalf of ePESSTO+ ePESSTO+ SN IIn-pec 0.007 1 ePESSTO+ 2021TNSCR4093....1S
Spectra
ID Obs-date (UT) Tel / Inst Exp-Time Observer/s Reducer/s Group Spectrum ascii file Spectrum fits file Spec. Type Assoc. Groups End prop. period Remarks
11548 2021-12-04 04:44:32 ESO-NTT / EFOSC2-NTT 900 I. Seitenzahl, J. P. Anderson L. Galbany ePESSTO+ tns_2021aess_2021-12-04_04-44-32_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2021aess_2021-12-04_04-44-32_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object
11407 2021-11-19 18:59:21 Kyle Davis Kyle Davis (UCSC), David Jones (UCSC), Maria Jose Bustamante-Rosell (UCSC), Matt Siebert( UCSC), Ryan Foley (UCSC) UCSC LBV 0.007 1 UCSC A marginally resolved H-alpha emission line is detected. We measure a H-alpha FWHM velocity of 700 km/s. Using a Tully-Fisher distance modulus to the host galaxy, NGC 1359, of 32.95 mag (Tully et al., 2009, AJ 138 323) and correcting for Milky Way extinction, the current absolute magnitude is M_r = -14.4 mag and rising. The relatively low absolute magnitude, slow rise (1.7 mag over 6 days), and narrow H-alpha line indicate that AT2021aess is likely not a supernova, but a non-terminal LBV eruption (i.e., a "supernova impostor") or possibly a luminous red nova. 2021TNSCR3967....1D
Spectra
ID Obs-date (UT) Tel / Inst Exp-Time Observer/s Reducer/s Group Spectrum ascii file Spectrum fits file Spec. Type Assoc. Groups End prop. period Remarks
11461 2021-11-15 06:56:00 Lick-3m / KAST 3000 D. O. Jones, M. J. Bustamante-Rosell K. W. Davis, M. J. Bustamante-Rosell UCSC tns_2021aess_2021-11-15_06-56-00_Lick-3m_KAST_UCSC.flm Object

Comments

TNS
System

Thu, 12/23/2021 - 10:30

Object coordinates updated

Object coordinates updated according to AT-report 131407 of Group GaiaAlerts
Previous RA, DEC: 03:33:48.126, -19:29:44.63 (53.4505244, -19.4957312)
Updated RA, DEC: 03:33:48.140, -19:29:44.52 (53.450583, -19.4957)