DRAFT
2020-11-15 16:18:32
Type: Object/s-Discovery/Classification
Bibcode: 2020TNSAN.229....1G
ePESSTO+ spectroscopic classification of optical transients
Authors: M. Gromadzki, N. Ihanec (Warsaw), T. Wevers (ESO), C. Gutierrez, S. C. Williams (Turku), L. Galbany (Granada), T.-W. Chen (Stockholm), S. Schulze (Weizmann), J. Anderson (ESO), T. Muller Bravo (Southampton), C. Inserra (Cardiff), E. Kankare (Turku), M. Nicholl (Birmingham), O. Yaron, I. Manulis (Weizmann), D. Young (QUB), J. Tonry, L. Denneau, A. Heinze, H. Weiland, H. Flewelling (IfA, Univ. of Hawaii), B. Stalder (LSST), A. Rest (STScI), K. W. Smith, S. J. Smartt, O. McBrien, S. Srivastav (QUB), K. C. Chambers, T. de Boer, J. Bulger, J. Fairlamb, M. Huber, C.-C. Lin, T. Lowe, E. Magnier, A. Schultz, R. J. Wainscoat, M. Willman (IfA, Univ. Hawaii)
Source Group: ePESSTO+
Keywords: Transient, Supernova, Optical, Spectroscopy
Abstract:
This report includes classifications of 8 Type Ia's, a potentially very young SN Ib-pec, 1 AGN, and a cataclysmic variable.

ePESSTO+, the advanced Public ESO Spectroscopic Survey for Transient Objects (Smartt et al. 2015 2015A&A...579A..40S), reports the following supernova classifications.

Targets were supplied by the Pan-STARRS Survey for Transients (Chambers et al. 2016 2016arXiv161205560C), the ATLAS survey (Smith et al. 2020 2020arXiv200309052S), the Zwicky Transient Facility ZTF (Bellm et al. 2019 2019PASP..131a8002B) - data stream processed through the Lasair broker (Smith, Williams, Young et al. 2019 2019RNAAS...3a..26S), the All Sky Automated Survey for SuperNovae ASAS-SN (see Shappee et al. 2014 2014ApJ...788...48S), and by the ESA Gaia Photometric Science Alerts Team DPAC.

Observations were performed on the ESO New Technology Telescope (NTT) at La Silla on the night of 2020 November 14, using EFOSC2 and Grism 13 (3985-9315A, 18A resolution). Classifications were done using SNID (Blondin & Tonry 2007 2007ApJ...666.1024B) and GELATO (Harutyunyan et al. 2008 2008A&A...488..383H).

The classification spectra and additional details can be obtained from http://www.pessto.org (via WISeREP) and the IAU Transient Name Server.

The classified objects are listed in the Related Objects table below.

Show current TNS values
Catalog Name Reported RA Reported DEC Reported Obj-Type Reported Redshift Host Name Host Redshift Source Phase (days) Remarks TNS RA TNS DEC TNS Obj-Type TNS Redshift
TNS 2019pjl [Gaia19dvx] 19:29:58.580 -52:42:56.56 AGN 0.3 redshift from narrow host emission lines 19:29:58.580 -52:42:56.56 AGN 0.3
TNS 2020zdm [ASASSN-20nz] 06:29:22.241 -48:51:58.17 SN Ia 0.05 WISEA J062922.45-485200.8 around peak light redshift from SNID 06:29:22.293 -48:51:58.30 SN Ia 0.05
TNS 2020zei [Gaia20fde] 12:00:11.010 -44:21:33.88 CV H Balmer absorption lines at z=0, Halpha filled in 12:00:11.010 -44:21:33.88 CV
TNS 2020zem [ATLAS20bfgx] 01:20:52.273 +04:47:43.90 SN Ia 0.034 -10 to -5 days 01:20:52.284 +04:47:44.07 SN Ia 0.034
TNS 2020zgh [ZTF20acpknjk] 01:15:53.409 +00:00:57.52 SN Ia 0.045 SDSS J011553.38+000056.9 0.124 -8 to -4 days redshift from SNID 01:15:53.433 +00:00:57.61 SN Ia 0.045
TNS 2020zgl [ZTF20acpjqxp] 23:28:01.143 -02:09:53.61 SN Ib-pec Mrk 1131 0.006501 good match to SN Ib 2004gq, 9 days before peak. 23:28:01.150 -02:09:53.64 SN Ib-pec 0.0065
TNS 2020zhh [PS20kxp] 04:26:19.843 -10:05:56.86 SN Ia 0.04 -10 to -5 days redshift from SNID 04:26:19.843 -10:05:56.86 SN Ia 0.04
TNS 2020zjf [ZTF20acplqek] 03:30:39.931 +03:05:50.55 SN Ia-91T-like 0.085 WISEA J033039.25+030552.7 around peak light redshift from SNID 03:30:39.928 +03:05:50.55 SN Ia 0.083
TNS 2020zjn [ZTF20acpujxl] 05:08:08.772 +10:23:01.64 SN Ia 0.04 WISEA J050808.37+102302.7 -10 to -5 days redshift from SNID 05:08:08.774 +10:23:01.64 SN Ia 0.04
TNS 2020zbk [ATLAS20bfew] 00:36:11.518 -23:39:35.88 SN Ia 0.09 around peak light redshift from SNID 00:36:11.500 -23:39:35.87 SN Ia 0.09
TNS 2020zhd [ATLAS20bfio] 07:05:21.215 +18:13:31.80 SN Ia 0.08 around peak light redshift from SNID 07:05:21.201 +18:13:31.80 SN Ia 0.08

Comments