Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Tidal tails in the disintegrating open cluster NGC 752   We utilize the robust membership determination algorithm, ML-MOC, on the
precise astrometric and deep photometric data from Gaia Early Data Release 3
within a region of radius 5$^{\circ}$ around the center of the intermediate-age
galactic open cluster NGC 752 to identify its member stars. We report the
discovery of the tidal tails of NGC 752, extending out to $\sim$35 pc on either
side of its denser central region and following the cluster orbit. From
comparison with PARSEC stellar isochrones, we obtain the mass function of the
cluster with a slope, $\chi=-1.26\pm0.07$. The high negative value of $\chi$ is
indicative of a disintegrating cluster undergoing mass-segregation. $\chi$ is
more negative in the intra-tidal regions as compared to the outskirts of NGC
752. We estimate a present day mass of the cluster, M$\rm_{C}=297\pm10$
M$_{\odot}$. Through mass-loss due to stellar evolution and tidal interactions,
we further estimate that NGC 752 has lost nearly 95.2-98.5 % of its initial
mass, $\rm M_{i}~=~0.64~-2~\times~10^{4}~M_{\odot}$.

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The categories of this paper are: acc-phys
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The categories of this paper are: quant-ph
1
The categories of this paper are: cs
37
The categories of this paper are: supr-con
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The categories of this paper are: adap-org
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The categories of this paper are: funct-an
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The categories of this paper are: nucl-ex
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The categories of this paper are: stat
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The categories of this paper are: q-alg
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The categories of this paper are: chem-ph
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The categories of this paper are: q-fin
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The categories of this paper are: chao-dyn
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The categories of this paper are: dg-ga
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The categories of this paper are: solv-int
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The categories of this paper are: eess
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The categories of this paper are: econ