V1448 AQL End of Outburst

[Stephane Ubaud]

This star was in outburst in september 2009 and 2010.
New Buil's spectras of 2006 added BESS Only one outburst observe since 2006



Stephane

[Valerie Desnoux]

Be careful, the object is V1448 Aql... observing time is back...

[Stephane Ubaud]

Ok bien vu, Valerie j'ai modifié.

[Stephane Ubaud]

_v1448aql_20130710_965_gnuPlot.jpg (69.25 KiB) Viewed 10593 times

Reprise d'activité? a suivre...

[Paolo Berardi]

Hi Stephane, thank you for notification. I try to capture a spectrum with Lhires III and 1200 l/mm grating, finding (of course) similar intensities to your recent spectrum. Anyway an activity restart, compared with summer 2012, seems clear.



This profile is tellurics removed, I observed through some clouds and with a very humid climate (very bad weather period with thunderstorms every afternoon).

Probably we have to wait to see some evolution.

Clear sky!
Paolo

[Stephane Ubaud]

Hi Paolo,
Your spectrum has a very good SNR. We see very clearly a disaster recovery, this star seems evolve slowly but surely. There should be more regular spectra to show the rise which seems to me to be an abrupt transition.
stephane

[Valerie Desnoux]

Emission events can be slow or... fast... that's why it is important to have some good time resolution at R>5000
So, let's keep an eye on this star.
Valerie

[Paolo Berardi]

Thanks to both of you! Put on the observation list...

Ciao!
Paolo