TCP J05390410+4748030 (dwarf nova)
Posted: Wed Mar 27, 2019 9:45 pm
Hi all! Some observations of the bright transient recently discovered by Yuji Nakamura that turned out to be a dwarf nova, WZ Sge subtype, on the basis of the spectrum and photometric behaviour. The target is currently V mag 13.4.
http://www.cbat.eps.harvard.edu/unconf/ ... 48030.html
The profiles are fluxed using V magnitude (averaged) obtained with concurrent photometry (15/3 -> V 11.91, 17/3 -> V 12.34, 22/3 -> V 13.00).
Development of spectrum between 15/3 and 22/3 2019. There is a gradual disk cooling (fading of CIII/NIII 4640 and He II lines).
Early superhumps detected during the 17/3 session with a very small telescope, Mak90, Baader V filter, SXV-H9 CCD (just an attempt). Peranso analysis of the light curves returns a period of 0.05695 d.
Paolo
PS: Thank you Jean-Jacques for "revitalising" the forum!
http://www.cbat.eps.harvard.edu/unconf/ ... 48030.html
The profiles are fluxed using V magnitude (averaged) obtained with concurrent photometry (15/3 -> V 11.91, 17/3 -> V 12.34, 22/3 -> V 13.00).
Development of spectrum between 15/3 and 22/3 2019. There is a gradual disk cooling (fading of CIII/NIII 4640 and He II lines).
Early superhumps detected during the 17/3 session with a very small telescope, Mak90, Baader V filter, SXV-H9 CCD (just an attempt). Peranso analysis of the light curves returns a period of 0.05695 d.
Paolo
PS: Thank you Jean-Jacques for "revitalising" the forum!
