From: Chris Lidman (clidman@eso.org)
Date: Sun Feb 06 2005 - 18:50:39 PST
Hi Gabriele,
Here are some comments on the 99ac paper. Overall, it looks in good
shape.
Cheers, Chris
Overall
=======
The paper (in particular the introduction) needs to be carefully read
by another person before submission.
Abstract
========
type Ia supernova -> Type Ia Supernova
Do you mean (SN) or (SN Ia) in the first line?
"Iron lines ... average." -> " The expansion velocities inferred
from the Iron lines appear to be lower than average; however, the expansion
velocity inferred from Calcium H and K are higher than average."
"dissipates" -> "disappears"
Introduction
============
Compared to the rest of the paper, the first part of the introduction
is not well written. I think this section needs some work.
Paragraph 10.
"an extreme" -> "an outlier"
Paragraph 11.
"with those other"
Section 2.
=========
Paragraph 4.
There are two extinctions used A_V=0.51 and A_V=0.14. Which one is
correct.
Why not apply telluric line correction to the curves in figure 2, since
you do them later?
Section 4
=========
5th paragraph
"based" -> "based on"
6th paragraph
"For each ion, optical depth" -> "For each ion, the optical depth.
Is an increase in the BB temperature from day -15 to day -9
reasonable? I guess the reason is that we are looking deeper into the
ejecta.
dissipated -> disappeared
Section 5.
=========
Second paragraph
A space between "core" and "Consider"
Section 5.2
"systematically greater" -> "systematicaly higher"
Acknowledgements
================
The ESO program ID was 63.O-0347(A). This should be acknowledged in the
last paragraph.
Figure 2.
=========
What are the sudden sharp dips in the +8 day spectrum? A comment in
the caption might be necessary.
"spectral time evolution" -> "spectral evolution"
Figure 14.
=========
"togheter" -> "together"
Figure 15.
=========
"lay" -> "lie"
Table 1.
=======
ESO 3.5m -> ESO 3.6m
a) "Average wavelength-bin size" -> Resolution (Angstroms). Is this
the real resolution (= slit width * Angstroms per pixel) or is it
just the Angstroms per pixel.
f) "Rest frame" -> "Rest frame days"
Comments a and f are on top of eachother.
A loose comma in "d"
Table 5.
=======
You may want to quote v_10 with less significant figures since the
error is large, i.e. 8470 instead of 8463. Some of the values
could be corrected likewise.
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