RA/DEC (2000)
14:39:30.646 -27:51:30.19
219.877692561 -27.8583862971
Type
TDE
Redshift
0.153
Discovery ReportClassification Report
Reporting Group
ALeRCE
Discovering Data Source
ZTF
Discovery Date
2021-04-08 10:04:45.002
TNS AT
Y
Public
Y
Comments
[Prefix updated to TDE by admin on 2025-01-26]
Discovery Mag
20.1062
Filter
g-ZTF
Reporter/s
A. Munoz-Arancibia, F. Forster, F.E. Bauer, G. Pignata, L. Hernandez-Garcia, L. Galbany, E. Camacho, J. Silva-Farfan, A. Mourao, 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
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌TDE_2021jjm - 2021-05-13 11:09:53 Keck1 / LRIS (None)z=
▌Show H at z=vexp= km/s
▌Show He at z=vexp= km/s
▌Show He II at z=vexp= km/s
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▌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
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▌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
   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),0 (observed)

Light curves

 ▌PS2_GPC2_i
 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
 ▌ATLAS-MLO_ATLAS-01_cyan
 ▌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
9661 2021-05-13 11:09:53 Keck1 / LRIS 264 Yuhan Yao, Yashvi Sharma Daniel Perley None tns_2021jjm_2459347.9652_Keck1_LRIS.spec Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
i-P1 PS2_GPC2 2021-04-22 09:38:53 - 2021-04-22 09:38:53 2459326.902 - 2459326.902 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
219659 2021-04-22 09:38:53 2459326.902 19.17 0.24 20.7 ABMag i-P1 PS2_GPC2 45 Robot
r-ZTF P48_ZTF-Cam 2021-04-08 09:03:39 - 2021-04-10 10:38:11 2459312.8775347 - 2459314.9431829 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
206184 2021-04-10 10:38:11 2459314.9431829 20.3787 0.353392 19.9612 ABMag r-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
206182 2021-04-08 09:03:39 2459312.8775347 19.7268 ABMag r-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF
g-ZTF P48_ZTF-Cam 2021-04-08 10:04:45 - 2021-04-12 08:31:40 2459312.9199653 - 2459316.8553241 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
206185 2021-04-12 08:31:40 2459316.8553241 19.776 0.176547 20.2927 ABMag g-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
206183 2021-04-08 10:04:45 2459312.9199653 20.1062 0.279267 19.7464 ABMag g-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
cyan-ATLAS ATLAS-MLO_ATLAS-01 2021-04-11 11:05:17 - 2021-04-15 10:33:36 2459315.962 - 2459319.94 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
207202 2021-04-15 10:33:36 2459319.94 19.581 0.172 19.77 ABMag cyan-ATLAS ATLAS-MLO_ATLAS-01 30 Robot
207201 2021-04-11 11:05:17 2459315.962 19.77 ABMag cyan-ATLAS ATLAS-MLO_ATLAS-01 30 Robot [Last non detection]
w-P1 PS1_GPC1 2021-06-09 06:37:26 - 2021-06-09 06:37:26 2459374.776 - 2459374.776 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
221981 2021-06-09 06:37:26 2459374.776 19.79 0.1 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
113903 2021-06-16 14:12:21 PS1_Bot1 K. C. Chambers, T. de Boer, J. Bulger et al. Pan-STARRS Pan-STARRS 14:39:30.646 -27:51:30.19 2021-06-09 06:37:26.400 19.79 w-P1 PSN PS21fhy Pan-STARRS N
112703 2021-06-08 09:01:15 PS2_Bot1 K. C. Chambers, T. de Boer, J. Bulger et al. Pan-STARRS Pan-STARRS 14:39:30.654 -27:51:30.52 2021-04-22 09:38:52.800 19.17 i-P1 PSN PS21fhy Pan-STARRS N
106953 2021-04-16 11:58:51 ATLAS_Bot1 J. Tonry, L. Denneau, A. Heinze et al. ATLAS ATLAS 14:39:30.630 -27:51:30.23 2021-04-15 10:33:36.000 19.581 cyan-ATLAS PSN ATLAS21mwd ATLAS N
106452 2021-04-12 18:42:39 ALeRCE A. Munoz-Arancibia, F. Forster, F.E. Bauer et al. ALeRCE ZTF 14:39:30.664 -27:51:30.68 2021-04-08 10:04:45.002 20.1062 g-ZTF PSN ZTF21aauuybx ZTF SN candidate 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/ZTF21aauuybx 2021TNSTR1158....1M N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
9651 2021-05-14 21:24:41 Yuhan Yao Yuhan Yao (Caltech), Sjoert van Velzen (Leiden University), Daniel Perley (LJMU), Suvi Gezari (STScI), Erica Hammerstein (UMD), Jean Somalwar (Caltech), Yashvi Sharma (Caltech), Shri Kulkarni (Caltech) None TDE 0.153 1 We report the classification of the optical transient AT2021jjm (ZTF21aauuybx) (RA=14:39:30.67, Dec=-27:51:30.66) as a tidal disruption event (TDE). AT2021jjm was first reported to TNS based on a Zwicky Transient Facility (ZTF) detection on 2021 April 8 at a magnitude of g = 20.11. The ZTF color of this source has remained blue since then. We obtained a spectrum with the Low-Resolution Imaging Spectrograph (LRIS) on Keck I on 2021 May 13. This spectrum displays a blue continuum, host galaxy lines at the redshift z=0.153, and broad emission features around Halpha and Hbeta. Following the classification scheme suggested by van Velzen et al. 2021, we classify it as a TDE-H. 2021TNSCR1632....1Y
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
9661 2021-05-13 11:09:53 Keck1 / LRIS 264 Yuhan Yao, Yashvi Sharma Daniel Perley None tns_2021jjm_2459347.9652_Keck1_LRIS.spec Object

Comments

TNS
System

Wed, 06/16/2021 - 13:30

Object coordinates updated

Object coordinates updated according to AT-report 113903 of Group Pan-STARRS1
Previous RA, DEC: 14:39:30.654, -27:51:30.52 (219.877725754, -27.8584766474)
Updated RA, DEC: 14:39:30.646, -27:51:30.19 (219.877692561, -27.8583862971)

TNS
System

Tue, 06/08/2021 - 08:30

Object coordinates updated

Object coordinates updated according to AT-report 112703 of Group Pan-STARRS1
Previous RA, DEC: 14:39:30.664, -27:51:30.68 (219.87776829999999, -27.858522100000002)
Updated RA, DEC: 14:39:30.654, -27:51:30.52 (219.877725754, -27.8584766474)