RA/DEC (2000)
23:07:45.751 -48:45:08.23
346.940629091 -48.7522863636
Type
SN IIn
Redshift
0.0285
Discovery ReportClassification Report
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2023-07-11 02:53:17.376
TNS AT
Y
Public
Y
Discovery Mag
17.581
Filter
orange-ATLAS
Reporter/s
J. Tonry, L. Denneau, H. Weiland, A. Lawrence, R. Siverd (IfA, University of Hawaii), N. Erasmus, W. Koorts (South African Astronomical Observatory), J. Anderson (ESO), A. Jordan, V. Suc (UAI, Obstech), S. J. Smartt (Oxford/QUB), K. W. Smith, S. Srivastav, D. R. Young, M. Nicholl, M. Fulton, M. McCollum, T. Moore, J. Weston, X. Sheng (Queen's University Belfast), A. Aamer (QUB/Birmingham), L. Shingles (GSI/QUB), A. Rest (STScI), T.-W. Chen (TUM), C. Stubbs (Harvard), J. Sommer (LMU/QUB), L. Rhodes, A. Andersson (Oxford)
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2023mza - 2023-07-21 22:46:14 SALT / RSS (MeerLICHT)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
   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),0 (observed)

Light curves

 ▌ATLAS-CHL_ATLAS-04_orange
 ▌ATLAS-STH_ATLAS-03_orange
   
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
15519 2023-07-21 22:46:14 SALT / RSS 600 Simon de Wet, David Buckely Simon de Wet MeerLICHT tns_2023mza_2023-07-21_22-46-14_SALT_RSS_MeerLICHT.csv Object Wavelength is in the observer's frame. Spectrum is not flux calibrated.
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
orange-ATLAS ATLAS-CHL_ATLAS-04 2023-07-06 05:44:33 - 2023-07-06 05:44:33 2460131.73927 - 2460131.73927 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
352340 2023-07-06 05:44:33 2460131.73927 16.25 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot [Last non detection]
orange-ATLAS ATLAS-STH_ATLAS-03 2023-07-11 02:53:17 - 2023-07-11 02:53:17 2460136.62034 - 2460136.62034 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
352341 2023-07-11 02:53:17 2460136.62034 17.581 0.054 19.56 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 30 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
182287 2023-07-13 10:06:47 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland et al. ATLAS ATLAS 23:07:45.751 -48:45:08.23 2023-07-11 02:53:17.376 17.581 orange-ATLAS PSN ATLAS23ofp ATLAS 2023TNSTR1653....1T N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
15435 2023-08-21 13:07:58 Simon de Wet Simon de Wet, Orapeleng Mogawana, David Buckely, Paul Groot MeerLICHT SN IIn 0.0285 1 MeerLICHT AT2023mza was observed by the Southern African Large Telescope (SALT) on 2023 July 21 equipped with the Robert Stobie Spectrograph (RSS), employing the PG700 grating covering the wavelength range 4200-7400 Angstroms with a mean spectral resolution of 7.6 Angstroms. The spectrum shows strong Balmer emission lines at a common redshift of z=0.0285, equivalent to the redshift of the nearby spiral Galaxy ESO 239-12. The presence of strong Balmer emission lines are indicative of a circumstellar-medium interaction, so we classify AT2023mza as a supernova of type IIn. Observations are ongoing, and we encourage further photometric and spectroscopic follow-up. 2023TNSCR2034....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
15519 2023-07-21 22:46:14 SALT / RSS 600 Simon de Wet, David Buckely Simon de Wet MeerLICHT tns_2023mza_2023-07-21_22-46-14_SALT_RSS_MeerLICHT.csv Object Wavelength is in the observer's frame. Spectrum is not flux calibrated.

Comments