A New Faint Type Ia Supernova: Sn 1997cn in Ngc 5490 Received ; Accepted 0 Based on Observations Collected at Eso-la Silla
نویسندگان
چکیده
Observations of the recent SN 1997cn in the elliptical galaxy NGC 5490 show that this objects closely resembles, both photometrically and spectroscopically, the faint SN Ia SN 1991bg. The two objects have similar light curves, which do not show secondary maxima in the near IR as normal type Ia supernovae. The host galaxy, NGC 5490, lies in the Hubble flow. Adopting for SN 1997cn a reddening
منابع مشابه
The properties of the peculiar Type Ia SN 1991 bg . Analysis and discussion of two years of observations . ⋆
Observations of the peculiar type Ia SN 1991bg in NGC 4374 collected at ESO–La Silla and Asiago are presented and discussed. The photometric coverage extends for 530 days and the spectroscopy for the first seven months after the explosion. The broad– band light curves in the early months have a narrower peak and a luminosity decline faster than other SNIa (14.6 and 11.7 mag×(100d) in B and V re...
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