Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spectacular Trailing Streamers near LMC X-1: The First Evidence of a
  Jet?   We report VIMOS integral field spectroscopy of the N159F nebula surrounding
LMC X-1. Our observations reveal a rich, extended system of emission line
filaments lining the boundary of a large conical cavity identified in Spitzer
mid-IR imaging. We find that X-ray photoionization cannot be solely responsible
for the observed ionization structure of N159F. We propose that the extended
filamentary emission is produced primarily by ionization from a shock driven by
a presently unobserved jet from LMC X-1. We infer a shock velocity of v_s ~ 90
km/s and conclude that the jet responsible for the bow shock is presently
undetected because it has switched off, rather than because it has a low
surface brightness. This interpretation is consistent with the present soft
X-ray spectral state of LMC X-1 and suggests the jet is intermittent.

35
The categories of this paper are: mtrl-th
14
The categories of this paper are: math-ph
25
The categories of this paper are: patt-sol
10
The categories of this paper are: q-bio
0
The categories of this paper are: hep-ph
9
The categories of this paper are: nlin
37
The categories of this paper are: supr-con
17
The categories of this paper are: q-fin
33
The categories of this paper are: plasm-ph
11
The categories of this paper are: hep-lat
19
The categories of this paper are: eess
2
The categories of this paper are: math
22
The categories of this paper are: chao-dyn
34
The categories of this paper are: chem-ph
7
The categories of this paper are: hep-th
28
The categories of this paper are: alg-geom