DRAFT
2020-03-13 16:11:13
Type: Object/s-Discovery/Classification
Bibcode: 2020TNSAN..62....1I
Spectroscopic classification of SN2020ekq as a type IIP SN
Authors: L. Izzo (DARK/NBI), D. B. Malesani (DTU Space), G. Leloudas (DTU Space), J. Hjorth (DARK/NBI), K. E. Heintz (Univ. Iceland), B. Milvang-Jensen (DAWN/NBI)
Keywords: Transient, Supernova, Optical, Spectroscopy
Abstract:
We classify SN2020ekq, identified by the "Pan-STARRS Search for Kilonovae", as a type IIP SN, about 35 days after maximum.

We observed the faint transient SN2020ekq (PS20act) discovered by Shubham et al. (AstroNote 2020-61) during the "Pan-STARRS Search for Kilonovae" (Smartt et al., AstroNote 2019-48). We used the Nordic Optical Telescope (NOT) equipped with the ALFOSC camera. Our spectrum (4x900 s exposure, starting on MJD 58920.87) covers the approximate wavelength range 4000-9000 Å. Our slit extends over the body of the host galaxy, NGC 2463, and from narrow Halpha emission we measure a redshift z = 0.026, in approximate agreement with the value reported in NED.
The spectrum shows a clear Halpha P Cygni profile. Running SNID and astrodash yields good matches with type IIP SNe about 35 days after maximum light.
We acknowledge the NOT staff for carrying out our observations, in particular Julia Martikainen and Teet Kuutma, and Shubham Srivastav and Stephen Smartt for discussion.

Show current TNS values
Catalog Name Reported RA Reported DEC Reported Obj-Type Reported Redshift Host Name Host Redshift Remarks TNS RA TNS DEC TNS Obj-Type TNS Redshift
Other 07:57:13.156 +56:40:38.83 SN IIP 0.026 NGC 2463
AstroNote Publication Timestamp Title Authors
2020-61 2020-03-12 15:41:51 Pan-STARRS Search for Kilonovae: discovery of an intrinsically faint transient in NGC 2463 (115 Mpc) S. Srivastav, S. J. Smartt, K. W. Smith (QUB), K. C. Chambers, M. Huber (IfA, Hawaii), O. McBrien, D. R. Young, J. Gillanders, D. O'Neill, P. Clark, S. Sim (QUB), T. de Boer, J. Bulger, J. Fairlamb, C.-C. Lin, T. Lowe, E. Magnier, A. Schultz, R. J. Wainscoat, M. Willman (IfA), T.-W. Chen (Stockholm), D. E. Wright (University of Minnesota), C. Stubbs (Harvard), A. Rest (STScI)
2019-48 2019-07-20 17:37:13 Pan-STARRS Search for Kilonovae : discovery of an intrinsically faint transient in UGC 12798 (68 Mpc) S. J. Smartt, (Queen's University Belfast), K. C. Chambers, (IfA, University of Hawaii) K. W. Smith (QUB), M. Huber (IfA), S. Srivastav, O. McBrien, D. R. Young, J. Gillanders, D. O'Neil, P. Clark, S. Sim, (QUB), T. de Boer, J. Bulger, J. Fairlamb, C.-C. Lin, T. Lowe, E. Magnier, A. Schultz, R. J. Wainscoat, M. Willman (IfA), T.-W. Chen (MPE), D. E. Wright (University of Minnesota), C. Stubbs (Harvard), A. Rest (STScI)
File Comments
SN2020ekq_NOT_Mar12.txt Extraction of a coadded spectrum (4x900 s) starting on MJD 58920.87

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