Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Protostellar and Protoplanetary Disk Masses in the Serpens Region   We present the results from an Atacama Large Millimeter/Submillimeter Array
(ALMA) 1.3 mm continuum and $^{12}$CO ($J=2-1$) line survey spread over 10
square degrees in the Serpens star-forming region of 320 young stellar objects,
302 of which are likely members of Serpens (16 Class I, 35 Flat spectrum, 235
Class II, and 16 Class III). From the continuum data, we derive disk dust
masses and show that they systematically decline from Class I to Flat spectrum
to Class II sources. Grouped by stellar evolutionary state, the disk mass
distributions are similar to other young ($<3$ Myr) regions, indicating that
the large scale environment of a star-forming region does not strongly affect
its overall disk dust mass properties. These comparisons between populations
reinforce previous conclusions that disks in the Ophiuchus star-forming region
have anomalously low masses at all evolutionary stages. Additionally, we find a
single deeply embedded protostar that has not been documented elsewhere in the
literature and, from the CO line data, 15 protostellar outflows which we
catalog here.

14
The categories of this paper are: math-ph
22
The categories of this paper are: chao-dyn
20
The categories of this paper are: acc-phys
34
The categories of this paper are: chem-ph
10
The categories of this paper are: q-bio
0
The categories of this paper are: hep-ph
32
The categories of this paper are: atom-ph
28
The categories of this paper are: alg-geom
15
The categories of this paper are: nucl-ex
35
The categories of this paper are: mtrl-th
36
The categories of this paper are: cmp-lg
8
The categories of this paper are: hep-ex
7
The categories of this paper are: hep-th
24
The categories of this paper are: dg-ga
19
The categories of this paper are: eess
17
The categories of this paper are: q-fin