Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Color Me Intrigued: the Discovery of iPTF 16fnm, a Supernova 2002cx-like
  Object   Modern wide-field, optical time-domain surveys must solve a basic
optimization problem: maximize the number of transient discoveries or minimize
the follow-up needed for the new discoveries. Here, we describe the Color Me
Intrigued experiment, the first from the intermediate Palomar Transient Factory
(iPTF) to search for transients simultaneously in the $g_\mathrm{PTF}$- and
$R_\mathrm{PTF}$-bands. During the course of this experiment we discovered
iPTF$\,$16fnm, a new member of the 02cx-like subclass of type Ia supernovae
(SNe). iPTF$\,$16fnm peaked at $M_{g_\mathrm{PTF}} = -15.09 \pm 0.17 \;
\mathrm{mag}$, making it the second least-luminous known type Ia SN. iPTF 16fnm
exhibits all the hallmarks of the 02cx-like class: (i) low luminosity at peak,
(ii) low ejecta velocities, and (iii) a non-nebular spectra several months
after peak. Spectroscopically, iPTF$\,$16fnm exhibits a striking resemblence to
2 other low-luminosity 02cx-like SNe: SNe 2007qd and 2010ae. iPTF$\,$16fnm and
SN 2005hk decline at nearly the same rate, despite a 3 mag difference in
brightness at peak. When considering the full subclass of 02cx-like SNe, we do
not find evidence for a tight correlation between peak luminosity and decline
rate in either the $g'$ or $r'$ band. We further examine the $g' - r'$
evolution of 02cx-like SNe and find that their unique color evolution can be
used to separate them from 91bg-like and normal type Ia SNe. This selection
function will be especially important in the spectroscopically incomplete
Zwicky Transient Facility/Large Synoptic Survey Telescope era. We measure the
relative rate of 02cx-like SNe to normal SNe Ia and find $r_{N_{02cx}/N_{Ia}} =
25^{+75}_{-18.5}\%$. Finally, we close by recommending that LSST periodically
evaluate, and possibly update, its observing cadence to maximize transient
science.

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The categories of this paper are: bayes-an
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The categories of this paper are: funct-an
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The categories of this paper are: alg-geom
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The categories of this paper are: q-fin
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The categories of this paper are: econ
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The categories of this paper are: quant-ph
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The categories of this paper are: chao-dyn
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The categories of this paper are: solv-int
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The categories of this paper are: chem-ph
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The categories of this paper are: cmp-lg
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The categories of this paper are: hep-ex
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The categories of this paper are: nucl-th
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The categories of this paper are: stat
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The categories of this paper are: hep-lat
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The categories of this paper are: nucl-ex
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The categories of this paper are: adap-org