Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Structure of the Local Interstellar Medium. VI. New MgII, FeII, and
  MnII Observations Toward Stars Within 100 Parsecs   We analyze high-resolution spectra obtained with the Space Telescope Imaging
Spectrograph onboard the Hubble Space Telescope toward 34 nearby stars (<100
pc) to record MgII, FeII and MnII absorption due to the local interstellar
medium (LISM). Observations span the entire sky, probing previously unobserved
regions of the LISM. We detected one to six individual absorption components
along any given sight line, and the number of absorbers roughly correlates with
the pathlength. This high-resolution near-ultraviolet (NUV) spectroscopic
survey was specifically designed for sight lines with existing far-UV (FUV)
observations. The FUV spectra include many intrinsically broad absorption lines
(i.e., of low atomic mass ions) and often observed at medium resolution. The
LISM NUV narrow-line absorption component structure presented here can be used
to more accurately interpret the archival FUV observations. As an example of
this synergy, we present a new analysis of the temperature and turbulence along
the line of sight toward epsilon Ind. The new observations of LISM velocity
structure are also critical in the interpretation of astrospheric absorption
derived from fitting the saturated HI Lyman-alpha profile. As an example, we
reanalyze the spectrum of lambda And and find that this star likely does have
an astrosphere. Two stars in the sample that have circumstellar disks (49 Cet
and HD141569) show evidence for absorption due to disk gas. Finally, the
substantially increased number of sight lines is used to test and refine the
three-dimensional kinematic model of the LISM, and search for previously
unidentified clouds within the Local Bubble. We find that every prediction made
by the Redfield & Linsky (2008) kinematic model of the LISM is confirmed by an
observed component in the new lines of sight.

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The categories of this paper are: math
15
The categories of this paper are: nucl-ex
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The categories of this paper are: supr-con
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The categories of this paper are: alg-geom
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The categories of this paper are: acc-phys
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The categories of this paper are: quant-ph
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The categories of this paper are: hep-ph
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The categories of this paper are: hep-lat
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The categories of this paper are: hep-th
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The categories of this paper are: math-ph
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The categories of this paper are: cs
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The categories of this paper are: stat
35
The categories of this paper are: mtrl-th
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The categories of this paper are: atom-ph
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The categories of this paper are: solv-int
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The categories of this paper are: q-alg