Outburst
Z CMa
Coordinates (2000.0) : R.A. = 07h03m43.2s, Decl. = -11°33'06"
Z CMa (HD 51370) is a young visual binary system consisting
of a 12 Ms Herbig AeBe star and a 3 M FUOri companion of
an age of 0.3 Myr (Alonso-Albi et al. 2009). Both components
are surrounded by active accreting disks. Associated with the binary
system is a giant parsec-size jet (Poetzel et al. 1989). L = 1300 Ls, R = 13 Rs and Teff = 10 000K for the
Z CMa SE FUOri component and L = 2400 Ls, R = 1690Rs,
and TBB = 980K for the near-sinfrared Z CMaNW component
Photométrie
Photométrie durant l'outburst
Spectroscopie
2011 fev 08.855mag V
8,3date 08 02 2011heure TU 20:31exp 8x600 sbinning 1
2011 fev 15.856mag V
8,3date 15 02 2011heure TU 20:32exp 5x300 sbinning 2
2011 fev 17.768mag V
~ 8.3 date 15 02 2011 heure TU 18:28 exp 4 x 600 sec binning 2
2011 fev 20.793mag V
~ 8.1 date 20 02 2011 heure TU 19:02 exp 12 x300 sec binning 2
2011 fev 24.807mag V
~ 8.3 date 20 02 2011 heure TU exp binning 2
2011 mar 04.777mag V
~ 8.3 date 04 03 2011 heure TU 18:40 exp 8 x 600 sec binning 2
2011 mar 14.787mag V
~ 8.3 date 14 03 2011 heure TU 18:53 exp 8 x 600 sec binning 2
2011 mar 23809mag V
~ 8.3 date 23 03 2011 heure TU exp 6 x 600 sec binning 1 Spectres du 20 02 2011 : Visuel et proche IR
Idem en flux absolu (erg/cm2/s/A)
Evolution Ha
Références
2010A&A...509L...7S
Astron. Astrophys., 509, L7-7 (2010)
The nature of the recent extreme outburst of the Herbig Be/FU Orionis binary Z Canis Majoris.
SZEIFERT T., HUBRIG S., SCHOELLER M., SCHUETZ O., STELZER B. and MIKULASEK Z.