Hi immanuel,
It looks like you have Keck E/B maps with a funky normalization. Attached
are better ones. Are you sure you have the right normalization for the
BICEP1 maps? We fretted quite a bit to get that right for Keck. The
BICEP1 E maps look to have too much power to me.
Also, NET from last year was 11 uK/rt(s). (i'm being a bit nit-pickey
here, but I quoted 11.5 for SPIE based on early May data, and it was down
below 11 for the mid-winter).
-Sarah
On Sat, Jun 1, 2013 at 8:18 AM, Colin Bischoff <cbischoff(a)gmail.com> wrote:
hi Immanuel, Chris,
B2/Keck analysis will also be the first time that beam systematics
deprojection is used in its full glory (we only used relgain
deprojection in the B1 analysis).
Going along with Chin Lin's email, I'm sure that we have been up front
in previous talks about far field A/B offsets. So if we told people
about them back when they were pretty bad, we should *definitely* tell
people about them now that we have both analysis mitigation and
improved hardware!
-colin
On Fri, May 31, 2013 at 7:15 PM, Immanuel Buder <ibuder(a)cfa.harvard.edu>
wrote:
Chris
We are not going to use the matrix based analysis for the first BICEP2
paper, so your slide 22 is misleading. I'm not against showing it, but it
should probably be emphasized that it's for the mid-term future, not the
near-term
Thanks, I'll make that more clear.
We might improve a few things (Kirit's estimator, for example) but for
the
most part I think that BICEP1 3-yr is doing all
the improvements and
BICEP2
is just going to take advantage of them.
The improvements I'm going to talk about in this section are above and
beyond BICEP1 3-yr. I thought pureB was a major improvement that won't be
used in B1. I'll make clear that the BICEP1 3-yr improvements all carry
over
to B2 and Keck.
Is it really true we've never shown beam maps of our dipoles before? It's
not like our A/B offsets are a secret.
We have shown near-field difference maps before. I thought we had shown
far-field maps too, but I can't find one in any previous talk.
Immanuel
----- Original Message -----
Date: Fri, 31 May 2013 15:48:57 -0500
From: Chris Sheehy <csheehy(a)uchicago.edu>
To: Immanuel Buder <ibuder(a)cfa.harvard.edu>
Cc: BICEP BICEP <bicep(a)astro.caltech.edu>du>, bicep2-list
<bicep2-list(a)lists.fas.harvard.edu>du>, Keckarray
<keckarray(a)mailman.stanford.edu>
Subject: Re: [keckarray] CMB2013 Talk Slides
Hi Immanuel,
We are not going to use the matrix based analysis for the first BICEP2
paper, so your slide 22 is misleading. I'm not against showing it, but it
should probably be emphasized that it's for the mid-term future, not the
near-term. Also, on slide 18, you cite "analysis improvements" for
BICEP2. I
don't know if that's correct. We might
improve a few things (Kirit's
estimator, for example) but for the most part I think that BICEP1 3-yr is
doing all the improvements and BICEP2 is just going to take advantage of
them.
> Slide 22: The plots are from Jamie Tolan's presentation at the
> collaboration meeting. I don't think they've been shown in public
before,
> but I think we're ready to show them as
a demonstration of the
matrix-based
analysis
we're working toward. Jamie especially, do you agree?
Is it really true we've never shown beam maps of our dipoles before? It's
not like our A/B offsets are a secret.
-Chris
On Fri, May 31, 2013 at 10:34 AM, Immanuel Buder <ibuder(a)cfa.harvard.edu
wrote:
>
> I posted draft slides for my June 10 talk at CMB2013 (Okinawa) at
>
http://bmode.caltech.edu/~spuder/talks/CMB_2013_06_buder.pdf
> The talk time is 35 minutes.
> Suggestions are appreciated, and I have some special requests for
comment:
>
> Slide 2: I haven't decided whether to use this slide yet. I want
something
> to underscore the importance of inflation
B-mode experiments after
Planck,
> but this may be too controversial. What do
you think?
>
> Slide 6: Did I leave anyone out?
>
> Slide 19: I got this map from Angiola's recent posting
>
http://bmode.caltech.edu/~spuder/analysis_logbook/analysis/20130517_new_3yr…
> I think the map-making is mature enough to
show, but this is a map we
> haven't shown in public before. If we don't feel ready to show it, I
don't
> mind reverting to a previous analysis that
has been shown before.
> For BICEP2 and Keck map noise I am using Clem's map depth/weighting
scheme
> [
http://bmode.caltech.edu/~spuder/analysis_logbook/analysis/20130513_map_dep…
]
>
> Slide 20: Are we ready to show a BICEP2 jackknife spectrum? I'd like to,
> especially to show the error bars compared to r=0.1.
>
> Slide 21: Do we have a recent posting showing how much improvement we
get
> from the pureB estimator? The plot I have now
is for Keck from a recent
> posting by Sarah. The most recent BICEP2 posting I could find was from
early
> 2012 for the 0304 simset.
>
> Slide 22: The plots are from Jamie Tolan's presentation at the
> collaboration meeting. I don't think they've been shown in public
before,
> but I think we're ready to show them as
a demonstration of the
matrix-based
> analysis we're working toward. Jamie
especially, do you agree?
>
> Slide 24: I'd prefer to show a far-field A-B difference map here, but I
> can't find one that's public. From the main beams final report, I think
>
http://bicep0.caltech.edu/~spuder/analysis_logbook/analysis/20121115_therm_…
> has the archival beam maps. Are we okay if I
pick a map from there as an
> example to show?
>
> Slide 29: I'd like to include something about the Keck sidelobes since
> it's something I've been working on, but I realize it's new and we
don't
> have a guaranteed solution although there's good evidence for believing
the
new
baffles will work.
Immanuel Buder
Postdoctoral Fellow
Harvard-Smithsonian Center for Astrophysics
(office) 617 495 7567
(office) 160 Concord Ave., M-114C
(mail) 60 Garden St. MS 42
Cambridge, MA 02138
ibuder(a)cfa.harvard.edu
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