Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A titanic interstellar medium ejection from a massive starburst galaxy
  at redshift 1.4   Feedback-driven winds from star formation or active galactic nuclei might be
a relevant channel for the abrupt quenching star formation in massive galaxies.
However, both observations and simulations support the idea that these
processes are non-conflictingly co-evolving and self-regulating. Furthermore,
evidence of disruptive events that are capable of fast quenching is rare, and
constraints on their statistical prevalence are lacking. Here we present a
massive starburst galaxy at z=1.4 which is ejecting $46 \pm 13$\% of its
molecular gas mass at a startling rate of $\gtrsim 10,000$ M$_{\odot}{\rm
yr}^{-1}$. A broad component that is red-shifted from the galaxy emission is
detected in four (low- and high-J) CO and [CI] transitions and in the ionized
phase, which ensures a robust estimate of the expelled gas mass. The implied
statistics suggest that similar events are potentially a major star-formation
quenching channel. However, our observations provide compelling evidence that
this is not a feedback-driven wind, but rather material from a merger that has
been probably tidally ejected. This finding challenges some literature studies
in which the role of feedback-driven winds might be overstated.

12
The categories of this paper are: nucl-th
14
The categories of this paper are: math-ph
18
The categories of this paper are: econ
32
The categories of this paper are: atom-ph
8
The categories of this paper are: hep-ex
5
The categories of this paper are: gr-qc
20
The categories of this paper are: acc-phys
24
The categories of this paper are: dg-ga
0
The categories of this paper are: hep-ph
35
The categories of this paper are: mtrl-th
7
The categories of this paper are: hep-th
19
The categories of this paper are: eess
15
The categories of this paper are: nucl-ex
10
The categories of this paper are: q-bio
27
The categories of this paper are: comp-gas
25
The categories of this paper are: patt-sol