Date: Thu, 25 Nov 2004 10:42:16 +0100 (CET)
From: Andrea Martocchia <email@example.com>
Subject: Re: still on odd spectra from observations affected by telemetry
To: "Pedro M. Rodriguez Pascual" <firstname.lastname@example.org>
Cc: Andrea Martocchia <email@example.com>
Thank you Pedro for the prompt answer.
What actually bothers me is not the strong flux drop (spectral shape) at
the lowest energies, but rather the fact that most channels around
and below 1 keV show huge error bars. I may perhaps have a look at the 2nd
Thank you again,
On Thu, 25 Nov 2004, Pedro M. Rodriguez Pascual wrote:
> Dear Andrea,
> I do not think events below 1keV are bad, but simply noise since photons
> the source are heavily extinguised to the a fairly large absorbing column
> > Dear XMM-helpdesk colleagues,
> > the observation 0144090201 was performed in difficult telemetry
> > conditions, due to the high flux of the source GRS1915+105. PN was set
> > Burst Mode, MOS in Timing.
> > Is it possible that these difficulties with telemetry are also the
> > for the RGS1 and RGS2 to yield virtually all bad events below \sim 1
> > I am attaching here a plot of RGS data, for illustration.
> > Thanks in advance,
> > Andrea Martocchia