LJT spectroscopic classification of AT 2022ajw as a young Type Ia supernova
ATel #15183; Qian Zhai, Jujia Zhang(YNAO); Liping Li (Yunnan University); Xiaofeng Wang(THU)
on 27 Jan 2022; 01:12 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Ju-Jia Zhang (jujia@ynao.ac.cn)
Subjects: Optical, Supernovae
We report an optical spectrum of AT 2022ajw (350-870nm) obtained on 2022 Jan. 26.67 UT with the Lijiang 2.4-m telescope (LJT +YFOSC) at LiJiang observatory of Yunnan Observatories. The spectrum is similar to a Type Ia supernovae at a relatively early phase. Cross-correlation with the library of supernova spectra using the comparison tool Gelato (Harutyunyan et al. 2008, A&A, 488, 383) shows matches with SN 2003kf at t = -6 to -8 days. An expansion velocity of about 13000 km/s can be deduced from the Si II 6355 absorption minimum considering the redshift of 0.0489 for the host galaxy.
