Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Velocity-Resolved [Ne III] from X-Ray Irradiated Sz 102 Microjets   Neon emission lines are good indicators of high-excitation regions close to a
young stellar system because of their high ionization potentials and large
critical densities. We have discovered [Ne III]{\lambda}3869 emission from the
microjets of Sz 102, a low-mass young star in Lupus III. Spectroastrometric
analyses of two-dimensional [Ne III] spectra obtained from archival
high-dispersion ($R\approx 33,000$) Very Large Telescope/UVES data suggest that
the emission consists of two velocity components spatially separated by ~ 0."3,
or a projected distance of ~ 60 AU. The stronger redshifted component is
centered at ~ +21 km/s with a line width of ~ 140 km/s, and the weaker
blueshifted component at ~ -90 km/s with a line width of ~ 190 km/s. The two
components trace velocity centroids of the known microjets and show large line
widths that extend across the systemic velocity, suggesting their potential
origins in wide-angle winds that may eventually collimate into jets. Optical
line ratios indicate that the microjets are hot ($T\lesssim1.6\times10^4$ K)
and ionized ($n_e\gtrsim5.7\times10^4$ cm$^{-3}$). The blueshifted component
has ~ 13% higher temperature and ~ 46% higher electron density than the
redshifted counterpart, forming a system of asymmetric pair of jets. The
detection of the [Ne III]{\lambda}3869 line with the distinct velocity profile
suggests that the emission originates in flows that may have been strongly
ionized by deeply embedded hard X-ray sources, most likely generated by
magnetic processes. The discovery of [Ne III]{\lambda}3869 emission along with
other optical forbidden lines from Sz 102 support the picture of wide-angle
winds surrounding magnetic loops in the close vicinity of the young star.
Future high sensitivity X-ray imaging and high angular-resolution optical
spectroscopy may help confirm the picture proposed.

19
The categories of this paper are: eess
17
The categories of this paper are: q-fin
15
The categories of this paper are: nucl-ex
27
The categories of this paper are: comp-gas
24
The categories of this paper are: dg-ga
29
The categories of this paper are: funct-an
9
The categories of this paper are: nlin
30
The categories of this paper are: q-alg
20
The categories of this paper are: acc-phys
11
The categories of this paper are: hep-lat
28
The categories of this paper are: alg-geom
31
The categories of this paper are: ao-sci
7
The categories of this paper are: hep-th
0
The categories of this paper are: hep-ph
13
The categories of this paper are: quant-ph
21
The categories of this paper are: adap-org