TNS Classification Report No. 15141 [ 2023TNSCR1539....1S ]
Date Received (UTC): 2023-06-30 14:23:55 Sender: Michael Fulton
Group: OxQUB
S. Srivastav, M. Fulton (QUB), M. E. Huber, B. J. Shappee (IfA), S. J. Smartt (Oxford/QUB), M. Nicholl, T. Moore, X. Sheng, K. W. Smith, D. R. Young (QUB), H. Stevance, L. Rhodes (Oxford), T.-W. Chen (TUM), J. Sommer (LMU), K. C. Chambers , A. S. B. Schultz, T. de Boer, J. Bulger, J. Fairlamb, H. Gao, C. C. Lin, T. Lowe, E. Magnier, P. Minguez, I. A. Smith, R. J. Wainscoat (IfA) report/s a classification of object: SN 2023lya
Type: SN IbnRedshift: 0.03
Remarks: The spectrum reveals a blue continuum and narrow emission features identified as HeII 4686 and HeII 6560 and/or H-alpha, consistent with a redshift of z ~ 0.03. The combined photometry (see Astronote #2023-191 for details) indicates a fast-rising blue transient with a peak absolute mag Mg ~ -18.5 at this redshift. Together with the spectrum, we favour an Ibn classification.
The following Classification spectrum was provided:
Obsdate: 2023-06-30 09:12:52
Instrument: SNIFS
Telescope: UH 88inch
Remarks: The spectrum was obtained using the University of Hawaii 2.2-meter Telescope (UH88) and reduced using the integrated reduction pipeline.
Details of the object and its spectra can be viewed here: https://www.wis-tns.org/object/2023lya
Date Received (UTC): 2023-06-30 14:23:55 Sender: Michael Fulton
Group: OxQUB
S. Srivastav, M. Fulton (QUB), M. E. Huber, B. J. Shappee (IfA), S. J. Smartt (Oxford/QUB), M. Nicholl, T. Moore, X. Sheng, K. W. Smith, D. R. Young (QUB), H. Stevance, L. Rhodes (Oxford), T.-W. Chen (TUM), J. Sommer (LMU), K. C. Chambers , A. S. B. Schultz, T. de Boer, J. Bulger, J. Fairlamb, H. Gao, C. C. Lin, T. Lowe, E. Magnier, P. Minguez, I. A. Smith, R. J. Wainscoat (IfA) report/s a classification of object: SN 2023lya
Type: SN IbnRedshift: 0.03
Remarks: The spectrum reveals a blue continuum and narrow emission features identified as HeII 4686 and HeII 6560 and/or H-alpha, consistent with a redshift of z ~ 0.03. The combined photometry (see Astronote #2023-191 for details) indicates a fast-rising blue transient with a peak absolute mag Mg ~ -18.5 at this redshift. Together with the spectrum, we favour an Ibn classification.
The following Classification spectrum was provided:
Obsdate: 2023-06-30 09:12:52
Instrument: SNIFS
Telescope: UH 88inch
Remarks: The spectrum was obtained using the University of Hawaii 2.2-meter Telescope (UH88) and reduced using the integrated reduction pipeline.
Details of the object and its spectra can be viewed here: https://www.wis-tns.org/object/2023lya