\relax 
\@writefile{toc}{\contentsline {section}{\numberline {I}INTRODUCTION}{1}}
\@writefile{lof}{\contentsline {figure}{\numberline {1}{\ignorespaces  \relax \fontsize  {9}{11}\normalfont  \abovedisplayskip 8.5\p@ plus3\p@ minus4\p@ \abovedisplayshortskip \z@ plus2\p@ \belowdisplayshortskip 4\p@ plus2\p@ minus2\p@ \def \leftmargin \leftmargini \parsep 4\p@ plus2\p@ minus\p@ \topsep 8\p@ plus2\p@ minus4\p@ \itemsep 4\p@ plus2\p@ minus\p@ {\leftmargin \leftmargini \topsep 4\p@ plus2\p@ minus2\p@ \parsep 2\p@ plus\p@ minus\p@ \itemsep \parsep }\belowdisplayskip \abovedisplayskip Schematic of the 1.6 m off-axis, open NST for which the primary mirror is as close to the declination axis as possible. The optical path is indicated. There is a Nasmyth-focus along the declination axis, where we can put instrumentation. In this design, the coud\'e mirror is simply a flip mirror to re-direct light from the declination axis to the floor below, where the AO and principal instrumentation reside.}}{2}}
\@writefile{toc}{\contentsline {section}{\numberline {II}HERITAGE AND GOALS OF THE NST}{2}}
\@writefile{toc}{\contentsline {section}{\numberline {III}NST, BBSO AND OTHER SOLAR OBSERVATORIES}{3}}
\@writefile{toc}{\contentsline {section}{\numberline {IV}SCIENCE DRIVERS FOR THE NST}{3}}
\@writefile{toc}{\contentsline {subsection}{\numberline {(a)}HIGH RESOLUTION, HIGH CADENCE STUDIES OF SOLAR FLARES}{3}}
\@writefile{toc}{\contentsline {subsection}{\numberline {(b)}STRUCTURE AND EVOLUTION OF \\MAGNETIC FIELDS IN FLARING ACTIVE REGIONS}{4}}
\@writefile{toc}{\contentsline {subsection}{\numberline {(c)}DYNAMICS OF KILOGAUSS FLUX \\TUBES}{4}}
\@writefile{toc}{\contentsline {subsection}{\numberline {(d)}HEATING OF THE UPPER \\ATMOSPHERE}{4}}
\@writefile{lof}{\contentsline {figure}{\numberline {2}{\ignorespaces \relax \fontsize  {9}{11}\normalfont  \abovedisplayskip 8.5\p@ plus3\p@ minus4\p@ \abovedisplayshortskip \z@ plus2\p@ \belowdisplayshortskip 4\p@ plus2\p@ minus2\p@ \def \leftmargin \leftmargini \parsep 4\p@ plus2\p@ minus\p@ \topsep 8\p@ plus2\p@ minus4\p@ \itemsep 4\p@ plus2\p@ minus\p@ {\leftmargin \leftmargini \topsep 4\p@ plus2\p@ minus2\p@ \parsep 2\p@ plus\p@ minus\p@ \itemsep \parsep }\belowdisplayskip \abovedisplayskip (Left) Schematic of the new open telescope and its retractable dome (not to scale). Typically, the light goes to the Fabry-P\'erot-based scientific channels in the visible and near-IR, labelled FP(V) and FP(IR), which reside on the horizontal optical tables. The optical tables are installed on the floor beneath the telescope. Future Far-IR (FIR) instrumentation would require only a tip/tilt mirror (TTM) to get diffraction-limited images. The visible and near-IR channels would be operating downstream of the high-order AO system. We anticipate placing the polarizing optics between M2 and M3, where the light is nearly parallel. (Right) The optical layout of the NST with a true relative scale (a Zemax created model). The NST is an off-axis section of a conventional Gregory telescope with parabolic primary mirror M1, elliptical secondary M2, removable (for access to the primary focal plane with a wide FOV) heat-stop mirror HS, flat folding mirrors M3 and M4 (coud\'e mirror). M3 is a fixed folding mirror. The off-axis primary has an f-ratio 2.4 (parent's f-ratio is about 0.73). The telescope's effective focal length is about 80 m with a final f-ratio of 50, which is close to that of the current 65\nobreakspace  {}cm telescope. The image scale in the Gregory-coud\'e focal plane is 2.6$''$/mm. TTM redirects light to the floor below to get diffraction-limited images for far-IR instrumentation.}}{5}}
\@writefile{toc}{\contentsline {section}{\numberline {V}THE 1.6\nobreakspace  {}M NST}{5}}
\@writefile{toc}{\contentsline {subsection}{\numberline {(a)}TECHNICAL OVERVIEW}{5}}
\@writefile{toc}{\contentsline {subsubsection}{\numberline {\nobreakspace  {}\nobreakspace  {}i)}TELESCOPE OPTICS}{6}}
\@writefile{toc}{\contentsline {subsubsection}{\numberline {\nobreakspace  {}\nobreakspace  {}ii)}MECHANICAL STRUCTURE}{7}}
\@writefile{toc}{\contentsline {subsubsection}{\numberline {\nobreakspace  {}\nobreakspace  {}iii)}CONTROL SYSTEMS}{7}}
\@writefile{toc}{\contentsline {section}{\numberline {VI}ADAPTIVE OPTICS}{7}}
\@writefile{toc}{\contentsline {section}{\numberline {VII}NEW SCIENTIFIC \\INSTRUMENTATION FOR THE NST}{8}}
\@writefile{toc}{\contentsline {subsection}{\numberline {(a)}VISIBLE LIGHT VECTOR \\MAGNETOGRAPHS}{8}}
\@writefile{toc}{\contentsline {subsection}{\numberline {(b)}INFRARED VECTOR \\MAGNETOGRAPH}{8}}
\@writefile{toc}{\contentsline {subsection}{\numberline {(c)}REAL--TIME IMAGE \\RECONSTRUCTION (RTIR)}{8}}