AT2019agt a nova in M31
Posted: Tue Feb 05, 2019 3:06 pm
A possible nova in M31 AT2019agt was discovered at ~mag 17 by amateurs George Carey and Nick James. (2019-01-28)
https://wis-tns.weizmann.ac.il/object/2019agt
https://britastro.org/node/17044
This was a difficult spectroscopic target due to the high sky background contamination from the galaxy (The object is not far from the bright central region)
A first very low SNR spectrum using the ALPY 600 showed a blue continuum but no clear features above the noise (2019-01-29). A further spectrum taken last night(2019-02-04) however shows that a clear broad H alpha emission line has emerged and there is H beta emission at the local M31 radial velocity, confirming that this is likely a nova.
(Classification submitted to TNS and spectra submitted to the BAA spectroscopy database)
Robin
https://wis-tns.weizmann.ac.il/object/2019agt
https://britastro.org/node/17044
This was a difficult spectroscopic target due to the high sky background contamination from the galaxy (The object is not far from the bright central region)
A first very low SNR spectrum using the ALPY 600 showed a blue continuum but no clear features above the noise (2019-01-29). A further spectrum taken last night(2019-02-04) however shows that a clear broad H alpha emission line has emerged and there is H beta emission at the local M31 radial velocity, confirming that this is likely a nova.
(Classification submitted to TNS and spectra submitted to the BAA spectroscopy database)
Robin
- at2019agt_20190129_768_Leadbeater.png (59.54 KiB) Viewed 2886 times
- at2019agt_20190204_774_Leadbeater.png (47.42 KiB) Viewed 2886 times