\def\asec{$^{\prime\prime}$}

<HEADER><TITLE>{\it Hubble Space Telescope} Imaging of Herbig-Haro Object No. 2</TITLE>

</HEADER>

<P><A HREF=S6206.html><IMG SRC=../../../../../images/prev.xbm></A> <B><A HREF=S6206.html>Previous 

  abstract</A></B> <A HREF=S6208.html><IMG SRC=../../../../../images/next.xbm></A> 

  <B><A HREF=S6208.html>Next abstract</A></B> 

<DL><DT><B>Session 62 -- Very Young Stars</B>

<DT><I>Display presentation, Thursday, 9:20-4:00, Pauley Room</I>

</DL>

<H2>[62.07] {\it Hubble Space Telescope} Imaging of Herbig-Haro Object No. 2</H2>

<I>R.D. Schwartz (U. of MO-St. Louis), M. Cohen (U.C.-Berkeley), B.F. Jones (U.C.-Santa Cruz), K.-H. Bohm (U. of Washington), J.C. Raymond, L.W. Hartmann (CfA), R. Mundt (MPI-Heidelberg), M.A. Dopita (MSSSO), A.S.B. Schultz (Washington U.)</I>

<P>Images of HH~2 obtained with the Planetary Camera of the

<I>Hubble Space Telescope</I>

are presented and discussed.  The images, obtained in the emission lines of

H$\alpha$, [S II], and [O III] at a scale of 0.044 arcsec pixel$^{-1}$,

have been registered to within 11 mas, and the spherically-aberrated images

have been restored with the Richardson-Lucy algorithm.  The A and H complexes

in HH 2, which appear as somewhat extended (2\asec - 3\asec),

amorphous features on ground-based

images, are found to resolve into a rich array of structures with sizes in the

range 0.2\asec - 0.4\asec,

embedded within faint extended emission.  A wide range of

excitation is evident throughout each complex.  Although a few of the

structures are suggestive of bow shock geometry, most of the features appear

chaotic with complex excitation structure.  It is tentatively suggested that

the features in HH~2 may be the result of the fragmentation of a bow wave.

This work was supported by STScI grant GO-2243.01.



<P><A HREF=../tocThu.html#S6207><IMG SRC=../../../../../images/up.xbm></A> <B><A HREF=../tocThu.html#S6207>Thursday 

  program listing</A></B>