Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Recurrent strong outbursts of an EXor-like young eruptive star Gaia20eae   We present follow-up photometric and spectroscopic observations, and
subsequent analysis of Gaia20eae. This source triggered photometric alerts
during 2020 after showing a $\sim$3 mag increase in its brightness. Its Gaia
Alert light curve showed the shape of a typical eruptive young star. We carried
out observations to confirm Gaia20eae as an eruptive young star and classify
it. Its pre-outburst spectral energy distribution shows that Gaia20eae is a
moderately embedded Class II object with $L_\mathrm{bol} = 7.22$ L$_\odot$. The
color-color and color-magnitude diagrams indicate that the evolution in the
light curve is mostly gray. Multiple epochs of the H$\alpha$ line profile
suggest an evolution of the accretion rate and winds. The near-infrared spectra
display several emission lines, a feature typical of EXor-type eruptive young
stars. We estimated the mass accretion rate during the dimming phase to be
$\dot{M} = 3-8 \times 10^{-7}$ M$_\odot$ yr$^{-1}$, higher than typical T Tauri
stars of similar mass and comparable to other EXors. We conclude Gaia20eae is a
new EXor-type candidate.

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The categories of this paper are: hep-th
3
The categories of this paper are: physics
21
The categories of this paper are: adap-org
13
The categories of this paper are: quant-ph
36
The categories of this paper are: cmp-lg
18
The categories of this paper are: econ
20
The categories of this paper are: acc-phys
24
The categories of this paper are: dg-ga
16
The categories of this paper are: stat
22
The categories of this paper are: chao-dyn
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The categories of this paper are: hep-ex
31
The categories of this paper are: ao-sci
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The categories of this paper are: q-fin
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The categories of this paper are: patt-sol
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The categories of this paper are: nucl-th
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The categories of this paper are: hep-lat