Asiago spectroscopic classification of ASAS-SN18ao
ATel #11181; L. Tomasella, S. Benetti, E. Cappellaro, M. Turatto (INAF OAPd)
on 17 Jan 2018; 08:03 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Stefano Benetti (email@example.com)
Subjects: Optical, Supernovae
Referred to by ATel #: 11188
The Asiago Transient Classification Program (Tomasella et al. 2014, AN, 335, 841) reports the spectroscopic classification of
ASAS-SN18ao (aka AT2018gm, Atel #11178) discovered during the ongoing All Sky Automated Survey for SuperNovae (ASAS-SN, Shappee et al. 2014).
The observations were performed with the Asiago 1.82 m Copernico Telescope equipped with AFOSC (range 340-820 nm; resolution 1.4 nm).
Survey Name | IAI Name | Discovery date (UT) | Discovery mag | Observation (UT) | Type | z | Notes|
ASAS-SN18ao | SN2018gm | 2018-01-14 07:40:48 | 18 |2018â01-16 23:18:00 | Ia | 0.058 | (1) |
(1) According to the classification reported in Atel #11180, the best match of ASAS-SN18ao is with Type Ia SNe around maximum light. Assuming a redshift of 0.058, derived from SNID and GELATO spectral fitting and in agreement with the photoZ (0.063) of the host galaxy from SDSS14, an expansion velocity of about 10900 km/s is derived from the Si II 635.5 nm absorption.