DRAFT
2024-07-08 17:07:36
Type: Object/s-Discovery/Classification
Bibcode: 2024TNSAN.183....1T
Spectroscopic classification of SNe 2024lnq and 2024lpm
Authors: S. Taubenberger, C. Vogl, S. H. Suyu, R. Cañameras, A. Melo, S. Huber (MPA/TUM Garching), S. Dhawan (KICC Cambridge), A. Goobar, J. Johansson, N. Arendse, A. Sagues Carracedo, S. Schulze (OKC Stockholm), J. Nordin, A. Townsend (HU Berlin), T.-W. Chen (NCU Taiwan), S. Schuldt (UNIMI Milano), Y. Shu (PMO Nanjing)
Keywords: Transient, Supernova, Spectroscopy, Optical
Abstract:
We have obtained optical spectra of SN 2024lnq and SN 2024lpm, which show them to be a superluminous SN and an SN Ia, respectively.

We report the spectroscopic classification of the optical transients SN 2024lnq and SN 2024lpm. The targets were supplied by the Zwicky Transient Facility ZTF (Kulkarni 2018, 2018ATel11266....1K). The observations were performed on UT 2024 July 5.0 and July 6.9, respectively, with the 3.58m Italian Telescopio Nazionale Galileo (Canary Islands, Spain), equipped with DOLORES, covering a wavelength range from 5000 to 9700 Å at a resolution of 9 Å. Classifications were done using SNID (Blondin & Tonry 2007, 2007ApJ...666.1024B), GELATO (Harutyunyan et al. 2008, 2008A&A...488..383H), and NGSF (Next Generation SuperFit; AstroNote 2022-191, Howell et al. 2005, 2005ApJ...634.1190H).

Show current TNS values
Catalog Name Reported RA Reported DEC Reported Obj-Type Reported Redshift Host Name Host Redshift Source Phase Remarks TNS RA TNS DEC TNS Obj-Type TNS Redshift
TNS 2024lnq [ZTF24aaruheu] 14:50:43.751 +69:33:16.48 SN 0.48 ZTF The spectrum of SN 2024lnq shows a blue continuum with broad undulations. Spectral cross-matching with GELATO, SNID, and NGSF yields reasonable matches with various SLSNe (e.g., SN 2008es, SN 2015bn, CSS121015). The redshift is somewhat uncertain, but z=0.48 allows the identification of a faint emission feature with H-beta and is at the same time consistent with the photo-z estimate of the host galaxy from the Legacy Survey. At that redshift, the absolute magnitude of SN 2024lnq is around -23. 14:50:43.751 +69:33:16.48 SN 0.48
TNS 2024lpm [ZTF24aarhlxb] 15:10:14.823 +70:49:32.72 SN Ia 0.122 WISEA J151014.92+704932.7 0.122 ZTF +2 weeks GELATO yields good matches of SN 2024lpm with several SNe Ia between 12 and 18 days after maximum. The redshift z=0.122 has been measured from a narrow H-alpha emission line in the host galaxy. 15:10:14.823 +70:49:32.72 SN Ia 0.122
AstroNote Publication Timestamp Title Authors
2020-171 2020-09-02 18:06:13 HOLISMOKES spectroscopic classification of SN 2020sjp S. Taubenberger, S. H. Suyu, S. Schuldt, R. Cañameras, J. Bayer, S. Huber, U. Nöbauer, C. Vogl, A. Yıldırım (MPA/TUM Garching), D. Sluse (STAR Institute Liège), J. H. H. Chan, F. Courbin (EPFL Lausanne), M. Kromer (HITS Heidelberg), S. Sim (QUB Belfast)
2022-51 2022-02-24 13:47:32 Spectroscopic classification of SN 2022ccz S. Taubenberger, S. H. Suyu, R. Cañameras, C. Vogl, Y. Shu, S. Schuldt (MPA/TUM Garching), A. Goobar, A. Sagues Carracedo, J. Johansson, S. Schulze (OKC Stockholm), S. Dhawan (KICC Cambridge)
2022-191 2022-09-15 14:10:53 The Next Generation SuperFit (NGSF) tool is now available for online execution on WISeREP Samantha Goldwasser, Ofer Yaron, Avner Sass, Ido Irani, Avishay Gal-Yam (Weizmann), D. Andrew Howell (Las Cumbres / UCSB)
File Comments
ngsf_2024lnq_2015bn.png NGSF comparison between SN 2024lnq and the SLSN-I 2015bn.
gelato_2024lnq_2008es.png GELATO comparison between SN 2024lnq and the superluminous Type IIL SN 2008fs.
gelato_2024lnq_CSS121015.png GELATO comparison between SN 2024lnq and the SLSN-II CSS121015.
gelato_2024lpm_2003kf.png GELATO comparison between SN 2024lpm and the Type Ia SN 2003kf.

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