Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Volumetric Survey Speed: A Figure of Merit for Transient Surveys   Time-domain surveys can exchange sky coverage for revisit frequency,
complicating the comparison of their relative capabilities. By using different
revisit intervals, a specific camera may execute surveys optimized for
discovery of different classes of transient objects. We propose a new figure of
merit, the instantaneous volumetric survey speed, for evaluating transient
surveys. This metric defines the trade between cadence interval and snapshot
survey volume and so provides a natural means of comparing survey capability.
The related metric of areal survey speed imposes a constraint on the range of
possible revisit times: we show that many modern time-domain surveys are
limited by the amount of fresh sky available each night. We introduce the
concept of "spectroscopic accessibility" and discuss its importance for
transient science goals requiring followup observing. We present an extension
of the control time algorithm for cases where multiple consecutive detections
are required. Finally, we explore how survey speed and choice of cadence
interval determine the detection rate of transients in the peak absolute
magnitude-decay timescale phase space.

13
The categories of this paper are: quant-ph
12
The categories of this paper are: nucl-th
23
The categories of this paper are: solv-int
30
The categories of this paper are: q-alg
7
The categories of this paper are: hep-th
26
The categories of this paper are: bayes-an
14
The categories of this paper are: math-ph
29
The categories of this paper are: funct-an
8
The categories of this paper are: hep-ex
31
The categories of this paper are: ao-sci
18
The categories of this paper are: econ
35
The categories of this paper are: mtrl-th
15
The categories of this paper are: nucl-ex
16
The categories of this paper are: stat
36
The categories of this paper are: cmp-lg
24
The categories of this paper are: dg-ga